Owners have filed 355 complaints
about the 2020 Acura MDX with NHTSA between 2021 and 2026.
The largest single group is the engine & cooling.
Across this model's run it ranks 5 of 24 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 92
Against the median year of the Acura MDX. 50 means typical for this
model; 100 means roughly double.
Severity — 10
2% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — 85
50% of failures with a mileage on record happened under
36,000 miles, against a national rate of
29%.
NHTSA files every complaint against a named sub-assembly, not just a
system. This is the difference between knowing it was "the engine" and
knowing which part of it — the list to hand a mechanic.
Adaptive Cruise Control
2228.2%
Warnings
1620.5%
Automatic Emergency Braking
1417.9%
Warning
1215.4%
Assist
911.5%
Warnings
33.8%
Camera
11.3%
Pretensioner
11.3%
When it fails
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
12.0%
1,000 – 9,999 miles
816.0%
10,000 – 24,999 miles
816.0%
25,000 – 49,999 miles
1938.0%
50,000 – 74,999 miles
918.0%
75,000 – 99,999 miles
24.0%
100,000 – 149,999 miles
36.0%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Jan 2021peak 19Aug 2026
NHTSA investigations into the 2020 Acura MDX
An investigation is the step before a recall: the agency has seen enough
complaints to look into a pattern itself. An open one means it thinks
something may be wrong and nothing has been fixed yet.
2
investigations are
still open.
PE25008Opened 20 Aug 2025Still openENGINE
Engine failure
The Office of Defects Investigation (ODI) has received 414 reports of connecting rod bearing failures in the 3.5L V6 engine used in the following vehicles: Model Years (MY) 2018-2020 Acura TLX, MY2016-2020 Acura MDX, MY2016-2020 Honda Pilot, MY2018-2020 Honda Odyssey, and MY2017-2019 Honda Ridgeline. The subject engine failures were analyzed as part of a Recall Query (RQ24013). It was determined that these engine failures are outside the scope of Honda Recall 23V-751. Further, evidence gathered in conjunction with RQ24013 does not suggest this failure is caused by the same crankshaft manufac...
EA25004Opened 26 Mar 2025Still openENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR
No Restart After Auto Start/Stop Engages
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to r...
RQ24013Opened 8 Nov 2024Closed 20 Aug 2025ENGINE
Engine failure
On November 8, 2024, the Office of Defects Investigation (ODI) opened Recall Query RQ24013 to assess the scope of Honda recall 23V-751 after receiving complaints that alleged connecting rod bearing failures in vehicles that were not within the scope of recall 23V-751. In November 2023, Honda recalled 248,999 various Model Year (MY)2016–2020 Honda and Acura vehicles equipped with the 3.5L V6 engine. Honda recalled these vehicles due to a crankshaft manufacturing defect that caused premature connecting rod bearing wear and engine seizure. While the out-of-scope failures involved in these complai...
Recalls on the 2020 Acura MDX
A complaint is one owner's allegation. A recall is the point at which
the manufacturer or a regulator agreed the defect is real and dangerous
enough to fix for free — however old the car is.
Canada — Transport Canada
Canada runs its own recall programme, and its campaigns do not
always mirror the American ones.
Recall 2026275136,260 units in Canada
Structure
Issue: On certain vehicles, the suspension mounting points on the rear subframe could rust. As a result, rear suspension components could fail. This could lead to poor handling and a loss of vehicle control. Safety Risk: A loss of control could create the risk of a crash. Corrective Actions: Honda will notify owners by mail and advise you to take your vehicle to a dealership to inspect and install a rear subframe reinforcement kit or replace the subframe, as necessary.
Recall 202625112,371 units in Canada
Seats And Restraints
Issue: On certain vehicles, the weight sensor for the front passenger seat may not have been manufactured properly. As a result, the passenger-front airbag and knee airbag could deploy in a crash that doesn't require them to. Note: This recall is an expansion of Transport Canada recall no. 2024-059. If the weight sensor fails, the SRS warning light would turn on in the instrument panel. Safety Risk: An airbag system that doesn't work properly could increase the risk of injury in a crash. Corrective Actions: The company will notify owners by mail and advise you to take your vehicle to a dealership to replace the passenger-front seat weight sensor.
Recall 202521240,454 units in Canada
Lights And Instruments
Issue: On certain vehicles, the recall repairs completed by a Honda or Acura dealer during recall AL65/AL66 (Transport Canada recall no. 2019-159) may not have been effective. As a result, a second repair is required. On certain vehicles, water could enter the tail lamps on the tailgate and cause a short circuit. As a result, the fuse could blow and cause a complete loss of rear lighting. Note: This recall replaces recall AL65/AL66 (Transport Canada recall no. 2019-159). Vehicles that previously had a fuse harness installed under that recall do not require this repair. Safety Risk: A loss of rear lighting could make the vehicle less visible and increase the risk of a crash. Corrective Actions: Acura will notify owners by mail and advise you to take your vehicle to a dealership to install a fuse harness. The dealer will also inspect and, if necessary, replace the tail lamps on the tailgate and repair the body dust sealer.
Recall 2024262291,588 units in Canada
Fuel System
Issue: This recall is for low-pressure fuel pumps installed on certain vehicles or sold at dealerships as a replacement part. On certain vehicles, the low-pressure fuel pump could fail. If this happens, the engine may run rough or may not start and the check engine light may turn on. This could also result in a sudden loss of engine power while driving. Note: This recall replaces Transport Canada recall no. 2023-679. Vehicles that were repaired under that recall don't require this repair. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: The company will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel pump motor.
Recall 202405966,846 units in Canada
Airbag
Issue: On certain vehicles, the weight sensor for the front passenger seat may not have been manufactured properly. As a result, the passenger-front airbag and knee airbag could deploy in a crash that doesn't require them to. Note: If the weight sensor fails, the SRS warning light would turn on in the instrument panel. Safety Risk: An airbag system that doesn't work properly could increase the risk of injury in a crash. Corrective Actions: Honda will notify owners by mail and advise you to take your vehicle to a dealership for an inspection if the SRS warning light is on. If the SRS warning light is on due to a faulty weight sensor, the weight sensor will be replaced. When repair parts are available, Honda will send you a second letter. They will advise you to take your vehicle to a dealership to replace the passenger-front seat weight sensor.
Recall 2023679285,461 units in Canada
Fuel System
This recall was replaced by Transport Canada recall no. 2024-262. Issue: This recall is for low-pressure fuel pumps installed on certain vehicles or sold at dealerships as a replacement part. On certain vehicles, the low-pressure fuel pump could fail. If this happens, the engine may run rough or may not start and the check engine light may turn on. This could also result in a sudden loss of engine power while driving. Note: This is an expansion of Transport Canada recall nos. 2020-236 and 2021-182. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: The company will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel pump motor.
Recall 202360329,601 units in Canada
Engine
Issue: On certain vehicles equipped with a V6 engine, the connecting rod bearings could wear prematurely and become damaged. If this happens, the engine could make abnormal noises and a warning light may turn on. If you continue to drive the vehicle with these symptoms, the engine could fail. Safety Risk: An engine failure could cause a sudden loss of power and/or increase the risk of a vehicle fire. Both issues could increase the risk of a crash or injury. Corrective actions: Honda will notify owners by mail and advise you to take your vehicle to a dealership to inspect the engine. If damage is found, the dealer will replace the necessary parts.
Recall 202118280,176 units in Canada
Fuel System
Issue: On certain vehicles, the low-pressure fuel pump could fail. If this happens, then engine may run rough or may not start and the check engine light may turn on. This could also result in a sudden loss of engine power while driving. Note: This is an expansion of Transport Canada Recall No. 2020-236. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct you to take your vehicle to a dealer to replace the fuel pump motor.
Reports where the owner recorded a crash, a fire, an injury or a death.
Saint Louis, MOCrash
SERVICE BRAKES
While sitting stopped at a red light, the brake pedal suddenly became soft and the vehicle began moving. As I rushed to depress the pedal further (all the way to the floorboard - which did not stop the car) the car rolled forward and collided with the car in front of us causing damage to both vehicles. If the other car had not been in front of us we would have rolled directly into heavy active cross traffic which would have caused significant harm to all inside. My daughter, niece, and 8 month old grand-niece were with me in the car.
NHTSA complaint #11740691 — an unverified report by a vehicle owner.
Euless, TXCrash
SEAT BELTS
On May 30, 2024, the vehicle associated with the VIN associated with the report was involved in an accident. The vehicle is inoperable due to the seatbelt no longer working since the accident. The vehicle is at the collision center of my choice, and all repairs except for the seatbelt have been made. The collision center and I have reached out to American Honda Motor Company, Inc. and Acura several times. As of date, there has been no resolution and no estimated date of when a seatbelt will be issued by American Honda Motor Company, Inc. and/or Acura. I was told by an employee at American Honda Motor Company, Inc. that the seatbelt will become inoperable whenever the vehicle is in an accident or collision. I feel American Honda Motor Company, Inc. has and continues to produce unsafe vehicles and vehicles where repairs cannot be made promptly. Seatbelts are important, and I honestly believe seatbelts save lives. But, for a company to have a shortage of seatbelts with no estimated time of when one will be issued is unacceptable. And for the company to produce vehicles with seatbelts destined to not function after an accident is a problem. As a consumer, I would like this company to be held accountable for producing vehicles with problems and additional problems if the vehicles are in an accident. I've tried resolving this matter by contacting American Honda Motor Company, Inc., Better Business Bureau, and now NHTSA. I feel this is way beyond what a consumer should have to do.
NHTSA complaint #11602440 — an unverified report by a vehicle owner.
Euless, TXCrash
SEAT BELTS:PRETENSIONER
On May 30, 2024, the vehicle associated with the VIN associated with the report was involved in an accident. The vehicle is inoperable due to the seatbelt no longer working since the accident. The vehicle is at the collision center of my choice, and all repairs except for the seatbelt have been made. The collision center and I have reached out to American Honda Motor Company, Inc. and Acura several times. As of date, there has been no resolution and no estimated date of when a seatbelt will be issued by American Honda Motor Company, Inc. and/or Acura. I was told by an employee at American Honda Motor Company, Inc. that the seatbelt will become inoperable whenever the vehicle is in an accident or collision. I feel American Honda Motor Company, Inc. has and continues to produce unsafe vehicles and vehicles where repairs cannot be made promptly. Seatbelts are important, and I honestly believe seatbelts save lives. But, for a company to have a shortage of seatbelts with no estimated time of when one will be issued is unacceptable. And for the company to produce vehicles with seatbelts destined to not function after an accident is a problem. As a consumer, I would like this company to be held accountable for producing vehicles with problems and additional problems if the vehicles are in an accident. I've tried resolving this matter by contacting American Honda Motor Company, Inc., Better Business Bureau, and now NHTSA. I feel this is way beyond what a consumer should have to do.
NHTSA complaint #11602440 — an unverified report by a vehicle owner.
On two separate occasions (December 2022 and April 2023), the Collision Mitigation System (CMS) of our 2020 Acura MDX improperly engaged. On the first occasion, the CMS abruptly engaged the braking system without warning. There was no car in front of the car, but there was a car in a turn lane to the right of the car. There was no reason for the system to engage. Both the driver (my wife) and the passenger (daughter) reported back pain from the incident. The driver received physical therapy for the event. The dealer (Gary Force Acura) and Honda America were notified. The dealer examined the car and found no issues or failures. On the second occasion, the car was changing lanes at a slow rate of speed while approaching an intersection and a stopped car well in front of the Acura. The CMS again abruptly slammed on the brakes in a manner not corresponding with the risk or danger of the situation. A collision with the car behind our car was fortunately avoided by the driver of the other car. The violence of the braking system caused damage to the braking system. No injuries were incurred. Again, the dealer and Honda America were notified, and the car was again examined. No issues or failures were identified outside of the brake repair. On both occasions, individuals were put at risk. The dealer was not able to reproduce the problem. The dealer said a CMS warning to brake should have come on before the CMS engaged. On both occasions, no warnings were observed until the actual braking event started. We are not comfortable driving the car, particularly with a student driver in the family. In most cases, we turn the CMS off before driving the car. The intent is to dispose of the car due to concern associated with the CMS.
NHTSA complaint #11526247 — an unverified report by a vehicle owner.
Wildomar, CACrash
VEHICLE SPEED CONTROL
While braking into a parking spot, vehicle experienced sudden unintended acceleration. Brake did not engage, car rapidly surged forward over parking block, sidewalk and hitting building. Previously in day, car would not recognized key fob, would not unlock and would not start even though stepping on brake that would not depress. I had no control over vehicle,and this could have hit pedestrians on sidewalk or storefront. Thankfully no one hurt, and did not occur in traffic or on the road. The dealership was contacted immediately, and they declined to inspect vehicle, codes or EDR statign that's not what they do. I have asked dealership 3 times. Insurance contacted immediately, and they to will not investigate, saying up to Honda and dealership. Honda stating they don't do investigations, and Insurance should do that. Round and round we go. No one assisting. Auto Body referred by dealership unable to investigate and do not have equipment to do so and stating dealership and Honda tech needs to do this investigation. Several messages displayed the day of incident prior to incident and electrical issues seem to have started immediately after recall or warranty work to reprogram auto stop function. First instance of electrical issue was on 4/1, when car would not open, or unlock even with new battery in key fob. This continued over next 3 weeks sporadically. 4/24 car would not start, displaying "must press down brake" to start, but brake would not depress. Finally worked. Same thing 4/25 in morning. In evening car would not unlock for some time, finally opened, then would not start displaying "Key fob not detected". Finally started. Message remained displayed. 15 min ,after, when parking, car accelerated forward without warning. This is a short summary, and a detailed summary is available. Vehicle remains untouched at autonomy hoping to get investigation completed. Too scared to drive this vehicle now..
NHTSA complaint #11520536 — an unverified report by a vehicle owner.
Wildomar, CACrash
ELECTRICAL SYSTEM
While braking into a parking spot, vehicle experienced sudden unintended acceleration. Brake did not engage, car rapidly surged forward over parking block, sidewalk and hitting building. Previously in day, car would not recognized key fob, would not unlock and would not start even though stepping on brake that would not depress. I had no control over vehicle,and this could have hit pedestrians on sidewalk or storefront. Thankfully no one hurt, and did not occur in traffic or on the road. The dealership was contacted immediately, and they declined to inspect vehicle, codes or EDR statign that's not what they do. I have asked dealership 3 times. Insurance contacted immediately, and they to will not investigate, saying up to Honda and dealership. Honda stating they don't do investigations, and Insurance should do that. Round and round we go. No one assisting. Auto Body referred by dealership unable to investigate and do not have equipment to do so and stating dealership and Honda tech needs to do this investigation. Several messages displayed the day of incident prior to incident and electrical issues seem to have started immediately after recall or warranty work to reprogram auto stop function. First instance of electrical issue was on 4/1, when car would not open, or unlock even with new battery in key fob. This continued over next 3 weeks sporadically. 4/24 car would not start, displaying "must press down brake" to start, but brake would not depress. Finally worked. Same thing 4/25 in morning. In evening car would not unlock for some time, finally opened, then would not start displaying "Key fob not detected". Finally started. Message remained displayed. 15 min ,after, when parking, car accelerated forward without warning. This is a short summary, and a detailed summary is available. Vehicle remains untouched at autonomy hoping to get investigation completed. Too scared to drive this vehicle now..
NHTSA complaint #11520536 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
at 60,541 milesValley Stream, NY
ENGINE AND ENGINE COOLING
The contact owns a 2020 Acura MDX. The contact stated that while driving approximately 35 MPH, there was an abnormal knocking sound coming from the vehicle before the vehicle stalled. The vehicle failed to restart. The maintenance warning light was illuminated. The contact stated that the failure was associated with NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The vehicle was towed to the residence. The local dealer was contacted to schedule an appointment, but the vehicle had not been diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 60,541.
NHTSA complaint #11757385 — an unverified report by a vehicle owner.
Islip, NY
POWER TRAIN
Engine turns off while in drive or stopped at a red light/stop sign. It has happened 7-10 times withing the last couple of months, but 3-4 times within the last week. Out of the four times it happened, my family's safety was at risk, because the car was in drive, and could've caused us to get into an accident. During the other occasions, we were moving in reverse and stopped at a stop sign. Complaint was made with Acura of Bay Shore in Long Island, NY, at which time an update of computer engine was performed but issue wasn't fixed due to back-order part that needs to be replaced. Unfortunately, just yesterday (August 13, 2026) car turned off at light causing a road hazard to vehicles and my family stuck in a large intersection. Multiple engine lights turned on, but I was unable to turn the car on or move it. approximately 10 min later, I was able to turn the car on and move it to safe location. I spoke to Acura of Bay Shore, and it is a known issue but till this date, isn't fixed. Vehicle is a hazard and can cause serious bodily harm/or death. thank you
NHTSA complaint #11756994 — an unverified report by a vehicle owner.
Islip, NY
STEERING
Engine turns off while in drive or stopped at a red light/stop sign. It has happened 7-10 times withing the last couple of months, but 3-4 times within the last week. Out of the four times it happened, my family's safety was at risk, because the car was in drive, and could've caused us to get into an accident. During the other occasions, we were moving in reverse and stopped at a stop sign. Complaint was made with Acura of Bay Shore in Long Island, NY, at which time an update of computer engine was performed but issue wasn't fixed due to back-order part that needs to be replaced. Unfortunately, just yesterday (August 13, 2026) car turned off at light causing a road hazard to vehicles and my family stuck in a large intersection. Multiple engine lights turned on, but I was unable to turn the car on or move it. approximately 10 min later, I was able to turn the car on and move it to safe location. I spoke to Acura of Bay Shore, and it is a known issue but till this date, isn't fixed. Vehicle is a hazard and can cause serious bodily harm/or death. thank you
NHTSA complaint #11756994 — an unverified report by a vehicle owner.
at 48,300 milesGahanna, OH
ELECTRICAL SYSTEM
The contact owns a 2020 Acura MDX. The contact stated that on six occasions the vehicle stalled and failed to restart immediately. The contact stated that while the idle button was on, the failure occurred. The contact was concerned about being in a crash. The vehicle was taken to the local dealer, where it was diagnosed, and two batteries were replaced, and a software update was performed. The dealer would be checking the software to be sure that it was operating as intended. The manufacturer was contacted, and a case was opened. The manufacturer provided a refund for the battery. The failure mileage was approximately 48,300.
NHTSA complaint #11757014 — an unverified report by a vehicle owner.
Islip, NY
ENGINE
Engine turns off while in drive or stopped at a red light/stop sign. It has happened 7-10 times withing the last couple of months, but 3-4 times within the last week. Out of the four times it happened, my family's safety was at risk, because the car was in drive, and could've caused us to get into an accident. During the other occasions, we were moving in reverse and stopped at a stop sign. Complaint was made with Acura of Bay Shore in Long Island, NY, at which time an update of computer engine was performed but issue wasn't fixed due to back-order part that needs to be replaced. Unfortunately, just yesterday (August 13, 2026) car turned off at light causing a road hazard to vehicles and my family stuck in a large intersection. Multiple engine lights turned on, but I was unable to turn the car on or move it. approximately 10 min later, I was able to turn the car on and move it to safe location. I spoke to Acura of Bay Shore, and it is a known issue but till this date, isn't fixed. Vehicle is a hazard and can cause serious bodily harm/or death. thank you
NHTSA complaint #11756994 — an unverified report by a vehicle owner.
at 48,300 milesGahanna, OH
ENGINE
The contact owns a 2020 Acura MDX. The contact stated that on six occasions the vehicle stalled and failed to restart immediately. The contact stated that while the idle button was on, the failure occurred. The contact was concerned about being in a crash. The vehicle was taken to the local dealer, where it was diagnosed, and two batteries were replaced, and a software update was performed. The dealer would be checking the software to be sure that it was operating as intended. The manufacturer was contacted, and a case was opened. The manufacturer provided a refund for the battery. The failure mileage was approximately 48,300.
NHTSA complaint #11757014 — an unverified report by a vehicle owner.
Palm Harbor, FL
FORWARD COLLISION AVOIDANCE: WARNINGS
While driving on a residential street under normal daylight conditions, the forward collision warning and automatic emergency braking system failed without warning. A dashboard message appeared instructing me to clean the windshield and stating that collision avoidance services were unavailable. The windshield was clean and unobstructed. There was no precipitation, glare, or debris. The failure occurred while the vehicle was in motion. I had no indication of whether the vehicle was safe to continue driving or whether I should stop immediately, and no way to know whether the fault was limited to the camera or whether other systems were affected. There was no prior warning, no gradual degradation, and no fault indication before this event. I purchased this vehicle in part for its advanced driver assistance systems and rely on forward collision prevention in daily driving. That protection is now unavailable, and I am driving without a crash avoidance system I was sold and expected to have. I took the vehicle to an authorized dealer for diagnosis. The dealer determined that the forward facing camera module must be replaced and recalibrated, and quoted $2,700. No recall or technical service bulletin was identified. I believe this constitutes a safety defect. A primary crash avoidance system failed spontaneously under normal operating conditions on a vehicle marketed on its safety technology. The repair cost is also high enough that many owners will defer or decline it, leaving vehicles on public roads with disabled collision avoidance. I request that NHTSA investigate the failure rate of this camera module and consider a safety recall.
NHTSA complaint #11756689 — an unverified report by a vehicle owner.
Palm Harbor, FL
BACK OVER PREVENTION: WARNINGS
While driving on a residential street under normal daylight conditions, the forward collision warning and automatic emergency braking system failed without warning. A dashboard message appeared instructing me to clean the windshield and stating that collision avoidance services were unavailable. The windshield was clean and unobstructed. There was no precipitation, glare, or debris. The failure occurred while the vehicle was in motion. I had no indication of whether the vehicle was safe to continue driving or whether I should stop immediately, and no way to know whether the fault was limited to the camera or whether other systems were affected. There was no prior warning, no gradual degradation, and no fault indication before this event. I purchased this vehicle in part for its advanced driver assistance systems and rely on forward collision prevention in daily driving. That protection is now unavailable, and I am driving without a crash avoidance system I was sold and expected to have. I took the vehicle to an authorized dealer for diagnosis. The dealer determined that the forward facing camera module must be replaced and recalibrated, and quoted $2,700. No recall or technical service bulletin was identified. I believe this constitutes a safety defect. A primary crash avoidance system failed spontaneously under normal operating conditions on a vehicle marketed on its safety technology. The repair cost is also high enough that many owners will defer or decline it, leaving vehicles on public roads with disabled collision avoidance. I request that NHTSA investigate the failure rate of this camera module and consider a safety recall.
NHTSA complaint #11756689 — an unverified report by a vehicle owner.
Palm Harbor, FL
LANE DEPARTURE: WARNING
While driving on a residential street under normal daylight conditions, the forward collision warning and automatic emergency braking system failed without warning. A dashboard message appeared instructing me to clean the windshield and stating that collision avoidance services were unavailable. The windshield was clean and unobstructed. There was no precipitation, glare, or debris. The failure occurred while the vehicle was in motion. I had no indication of whether the vehicle was safe to continue driving or whether I should stop immediately, and no way to know whether the fault was limited to the camera or whether other systems were affected. There was no prior warning, no gradual degradation, and no fault indication before this event. I purchased this vehicle in part for its advanced driver assistance systems and rely on forward collision prevention in daily driving. That protection is now unavailable, and I am driving without a crash avoidance system I was sold and expected to have. I took the vehicle to an authorized dealer for diagnosis. The dealer determined that the forward facing camera module must be replaced and recalibrated, and quoted $2,700. No recall or technical service bulletin was identified. I believe this constitutes a safety defect. A primary crash avoidance system failed spontaneously under normal operating conditions on a vehicle marketed on its safety technology. The repair cost is also high enough that many owners will defer or decline it, leaving vehicles on public roads with disabled collision avoidance. I request that NHTSA investigate the failure rate of this camera module and consider a safety recall.
NHTSA complaint #11756689 — an unverified report by a vehicle owner.
Prosper, TX
WHEELS
A federal safety recall was performed on the vehicle to install a rear subframe reinforcement kit. Before the recall repair, the vehicle operated normally and had no vibration at highway speeds. Immediately after the recall repair, a new vibration developed above approximately 60 mph. The vibration is felt primarily from the rear of the vehicle, occurs only while accelerating, becomes most noticeable between 60 and 80 mph, and disappears immediately when the accelerator is released while maintaining the same speed. The condition is repeatable and remains unresolved. The vibration creates concern for loss of vehicle stability and control at highway speeds because it occurs while the drivetrain is under load. No warning lights or diagnostic messages appeared before or after the repair. The vehicle has been inspected by both the dealership that performed the recall repair and an independent repair facility. To eliminate other possible causes, the front hub and bearing assembly were replaced and all four tires were remounted and dynamically balanced. Those repairs did not eliminate the rear vibration. The dealership attributed the condition to unrelated maintenance items, including tires, wheels, and brakes, but did not identify a defect with the recall repair or determine whether the rear subframe installation, rear differential mounting, driveshaft, or other components disturbed during the recall procedure contributed to the new vibration. The timing of the failure is significant because the vibration began immediately after completion of the federal recall repair and was not present beforehand. The component is available for inspection upon request. I am requesting that NHTSA investigate whether the recall remedy or repair procedure may have introduced a drivetrain or rear suspension condition affecting vehicle safety.
NHTSA complaint #11750239 — an unverified report by a vehicle owner.
Prosper, TX
SUSPENSION
A federal safety recall was performed on the vehicle to install a rear subframe reinforcement kit. Before the recall repair, the vehicle operated normally and had no vibration at highway speeds. Immediately after the recall repair, a new vibration developed above approximately 60 mph. The vibration is felt primarily from the rear of the vehicle, occurs only while accelerating, becomes most noticeable between 60 and 80 mph, and disappears immediately when the accelerator is released while maintaining the same speed. The condition is repeatable and remains unresolved. The vibration creates concern for loss of vehicle stability and control at highway speeds because it occurs while the drivetrain is under load. No warning lights or diagnostic messages appeared before or after the repair. The vehicle has been inspected by both the dealership that performed the recall repair and an independent repair facility. To eliminate other possible causes, the front hub and bearing assembly were replaced and all four tires were remounted and dynamically balanced. Those repairs did not eliminate the rear vibration. The dealership attributed the condition to unrelated maintenance items, including tires, wheels, and brakes, but did not identify a defect with the recall repair or determine whether the rear subframe installation, rear differential mounting, driveshaft, or other components disturbed during the recall procedure contributed to the new vibration. The timing of the failure is significant because the vibration began immediately after completion of the federal recall repair and was not present beforehand. The component is available for inspection upon request. I am requesting that NHTSA investigate whether the recall remedy or repair procedure may have introduced a drivetrain or rear suspension condition affecting vehicle safety.
NHTSA complaint #11750239 — an unverified report by a vehicle owner.
Vine Grove, KY
FUEL/PROPULSION SYSTEM
The car had several warnings lights come on and immediately stalled out and stoped right in the middle of the road. The engine would turn over but would sputter like it was out of gas and would die after a few seconds. It stoped in the middle of a busy state highway in a curve. Luckily no one got hurt. I towed it to an auto service center. The 2020 Acura MDX suffered an in-tank fuel pump failure causing a low fuel pressure code (P0087). This model year is under a massive 2.6-million vehicle safety recall, but my specific VIN was omitted. It likely should be included before someone gets hurt.
NHTSA complaint #11749098 — an unverified report by a vehicle owner.
Chicago, IL
ENGINE AND ENGINE COOLING
See attached document for complaint.
NHTSA complaint #11747720 — an unverified report by a vehicle owner.
at 104,000 milesHampton, CT
ENGINE AND ENGINE COOLING
The contact owns a 2020 Acura MDX. The contact stated that while driving approximately 20 - 25 MPH, there was an abnormal knocking sound coming from the passenger’s side of the vehicle. The contact stated that the check engine warning light and other unknown warning lights were illuminated. The vehicle stalled and was towed to dealer to be diagnosed. The dealer determined that the engine had seized. The contact associated the failure with NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 104,000.
NHTSA complaint #11746661 — an unverified report by a vehicle owner.
Lafayette Hill, PA
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Collision Mitigation, Automatic Cruise Control, and Lane Keep Assist features disabled. Safety equipment failure.
NHTSA complaint #11746074 — an unverified report by a vehicle owner.
Lafayette Hill, PA
LANE DEPARTURE: ASSIST
Collision Mitigation, Automatic Cruise Control, and Lane Keep Assist features disabled. Safety equipment failure.
NHTSA complaint #11746074 — an unverified report by a vehicle owner.
Lafayette Hill, PA
LANE DEPARTURE: WARNING
Collision Mitigation, Automatic Cruise Control, and Lane Keep Assist features disabled. Safety equipment failure.
NHTSA complaint #11746074 — an unverified report by a vehicle owner.
Holly Ridge, NC
UNKNOWN OR OTHER
Good morning, Out of nowhere my dashboard lit up after 5+ years of having no issues with the vehicle. I believe there are a total of 5 safety features that are linked to the ADAS camera in this MDX but i am not 100%, it may be 4 safety features. I am not here to whine about a repair on a 6 year old vehicle but this particular issue has become extremely common with this vehicle. I believe (along with all the other owners) that the ADAS issue with certain year Acura & Honda is happening way to often way too soon. my MDX does not even have 70k on it! after doing some research between Facebook, Reddit & many other Acura/Honda forums this appears to be all too common. when that camera shits the bed you lose many of the main safety features that may have brought you to purchase that vehicle. My local Acura dealer in Wilmington, NC told me he is replacing this part once a month and none of them are under warranty I'm not sure why he shared that with me but he did. that is an alarming number considering where i live and how few MDX's there probably are in my area. Where i live everyone drives either a full size pickup or suv and theyre all American brands. the dealer wants $1800 for the repair. I'm getting it done because i have the money to do it but I am not happy at all. normal wear and tear repairs i get, this one however i have a major issue with it. many people are not having the repair done because the car is driveable. any help with this would be greatly appreciated & thank you for your time. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11741211 — an unverified report by a vehicle owner.
Holly Ridge, NC
FORWARD COLLISION AVOIDANCE: WARNINGS
Good morning, Out of nowhere my dashboard lit up after 5+ years of having no issues with the vehicle. I believe there are a total of 5 safety features that are linked to the ADAS camera in this MDX but i am not 100%, it may be 4 safety features. I am not here to whine about a repair on a 6 year old vehicle but this particular issue has become extremely common with this vehicle. I believe (along with all the other owners) that the ADAS issue with certain year Acura & Honda is happening way to often way too soon. my MDX does not even have 70k on it! after doing some research between Facebook, Reddit & many other Acura/Honda forums this appears to be all too common. when that camera shits the bed you lose many of the main safety features that may have brought you to purchase that vehicle. My local Acura dealer in Wilmington, NC told me he is replacing this part once a month and none of them are under warranty I'm not sure why he shared that with me but he did. that is an alarming number considering where i live and how few MDX's there probably are in my area. Where i live everyone drives either a full size pickup or suv and theyre all American brands. the dealer wants $1800 for the repair. I'm getting it done because i have the money to do it but I am not happy at all. normal wear and tear repairs i get, this one however i have a major issue with it. many people are not having the repair done because the car is driveable. any help with this would be greatly appreciated & thank you for your time. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11741211 — an unverified report by a vehicle owner.
Good morning, Out of nowhere my dashboard lit up after 5+ years of having no issues with the vehicle. I believe there are a total of 5 safety features that are linked to the ADAS camera in this MDX but i am not 100%, it may be 4 safety features. I am not here to whine about a repair on a 6 year old vehicle but this particular issue has become extremely common with this vehicle. I believe (along with all the other owners) that the ADAS issue with certain year Acura & Honda is happening way to often way too soon. my MDX does not even have 70k on it! after doing some research between Facebook, Reddit & many other Acura/Honda forums this appears to be all too common. when that camera shits the bed you lose many of the main safety features that may have brought you to purchase that vehicle. My local Acura dealer in Wilmington, NC told me he is replacing this part once a month and none of them are under warranty I'm not sure why he shared that with me but he did. that is an alarming number considering where i live and how few MDX's there probably are in my area. Where i live everyone drives either a full size pickup or suv and theyre all American brands. the dealer wants $1800 for the repair. I'm getting it done because i have the money to do it but I am not happy at all. normal wear and tear repairs i get, this one however i have a major issue with it. many people are not having the repair done because the car is driveable. any help with this would be greatly appreciated & thank you for your time. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11741211 — an unverified report by a vehicle owner.
Parker, CO
ELECTRICAL SYSTEM
My cruise control, automatic lane changing indicator light indicator, brake indicator light, high beam light indicator lights all keep coming off and on. Researching it on YouTube states that it’s the camera on my windshield getting too hot and it’s a known issue. It’s $1800 To fix but others have stated they get fixed and it doesn’t resolve the problem. Asking for your help.
NHTSA complaint #11741032 — an unverified report by a vehicle owner.
Parker, CO
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
My cruise control, automatic lane changing indicator light indicator, brake indicator light, high beam light indicator lights all keep coming off and on. Researching it on YouTube states that it’s the camera on my windshield getting too hot and it’s a known issue. It’s $1800 To fix but others have stated they get fixed and it doesn’t resolve the problem. Asking for your help.
NHTSA complaint #11741032 — an unverified report by a vehicle owner.
Parker, CO
LANE DEPARTURE: ASSIST
My cruise control, automatic lane changing indicator light indicator, brake indicator light, high beam light indicator lights all keep coming off and on. Researching it on YouTube states that it’s the camera on my windshield getting too hot and it’s a known issue. It’s $1800 To fix but others have stated they get fixed and it doesn’t resolve the problem. Asking for your help.
NHTSA complaint #11741032 — an unverified report by a vehicle owner.
Saint Louis, MOCrash
SERVICE BRAKES
While sitting stopped at a red light, the brake pedal suddenly became soft and the vehicle began moving. As I rushed to depress the pedal further (all the way to the floorboard - which did not stop the car) the car rolled forward and collided with the car in front of us causing damage to both vehicles. If the other car had not been in front of us we would have rolled directly into heavy active cross traffic which would have caused significant harm to all inside. My daughter, niece, and 8 month old grand-niece were with me in the car.
NHTSA complaint #11740691 — an unverified report by a vehicle owner.
Lakeland, FL
UNKNOWN OR OTHER
Car alarm keeps going off. Lights go crazy and car loses battery.
NHTSA complaint #11740067 — an unverified report by a vehicle owner.