FaultScore

FaultScore report

2021 Mazda CX-5 problems

Owners have filed 199 complaints about the 2021 Mazda CX-5 with NHTSA between 2021 and 2026. The largest single group is the engine & cooling. Across this model's run it ranks 4 of 14 worst.

D

FaultScore 69/100

Higher is worse. Measured against the other years of the Mazda CX-5.

How this is worked out

The numbers

199

Complaints

22

Crashes reported

0

Fires reported

14

Injuries reported

33,900 mi

Median mileage at failure

Half of reported failures happened before this

57%

Failed under 36,000 miles

Inside a typical bumper-to-bumper warranty

What kind of bad

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.

Complaint volume 43 vs 50 Severity 93 vs 50 Early failure 96 vs 50
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 43
Against the median year of the Mazda CX-5. 50 means typical for this model; 100 means roughly double.
Severity — 93
18.1% of these complaints involved a crash, fire, injury or death, against a national rate of 9.7%.
Early failure — 96
57% of failures with a mileage on record happened under 36,000 miles, against a national rate of 29%.

How 2021 compares with every other Mazda CX-5

Click any bar to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks on a 2021 Mazda CX-5

Every complaint is filed against a part. Follow any row for the complaints about that part alone.

Engine & Cooling 79 39.7%

1 crashes, 0 fires · median 40,182 mi

6 crashes, 0 fires · median 104,500 mi

3 crashes, 0 fires · median 256 mi

2 crashes, 0 fires · median 3,014 mi

Brakes 11 5.5%

3 crashes, 0 fires · median 40,502 mi

Fuel & Propulsion 8 4.0%

1 crashes, 0 fires · median 1,629 mi

Acceleration & Cruise Control 8 4.0%

5 crashes, 0 fires

Windows, Mirrors & Wipers 7 3.5%

Median failure at 18,850 miles

Tires 5 2.5%

Median failure at 64,000 miles

Airbags 4 2.0%
Body & Structure 2 1.0%

1 crashes, 0 fires · median 3,000 mi

Steering 2 1.0%

Median failure at 81,000 miles

Child Seats 1 0.5%
Doors, Latches & Locks 1 0.5%
Lights 1 0.5%
Suspension 1 0.5%

Exactly what failed

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.

Automatic Emergency Braking 8 28.6%
Warnings 5 17.9%
Blind Spot Detection 4 14.3%
Adaptive Cruise Control 3 10.7%
Warning 2 7.1%
Sidewall 2 7.1%
Tread/Belt 2 7.1%
Body 2 7.1%

When it fails

Odometer readings owners gave when they filed. About half of all complaints include one.

Under 1,000 miles 4 17.4%
1,000 – 9,999 miles 6 26.1%
10,000 – 24,999 miles 1 4.3%
25,000 – 49,999 miles 3 13.0%
50,000 – 74,999 miles 3 13.0%
75,000 – 99,999 miles 4 17.4%
100,000 – 149,999 miles 2 8.7%

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 2021 peak 16 Aug 2026

Complaints that involved harm

Reports where the owner recorded a crash, a fire, an injury or a death.

Atlanta, GA Crash

LANE DEPARTURE: WARNING

While driving in the Interstate, a truck swerved towards my lane; I swerved into the next lane to avoid the truck hitting me and when I began to swerve my Lane Departure warning malfunctioned and caused my car to completely shut down. I immediately put my hazard lights on to hopefully avoid being hit; but, a car behind plowed right into my rear end. The police were onsite at the accident. My vehicle has been inspected by an independent service center and my insurance representative.

NHTSA complaint #11755082 — an unverified report by a vehicle owner.

Baden, PA Crash 1 injured

STRUCTURE:BODY

..... ON AT LEAST 5 SEPERATE OCCASIONS OUR 2021 MAZDA CX5 SUV ACCELERATED TO A HIGH RATE OF SPEED (ON IT'S OWN). IT HAS DONE IT TO MY WIFE AND I BOTH. I CONTACTED TWO DIFFERENT MAZDA SERVICE CENTERS AND WAS ADVISED THEY HAVE NO KNOWLEDGE OF THIS AND THAT THERE ARE NO OPEN RECALLS OR TSB's AND AS INTERMITTENT AS IT IS IT WOULD BE ALMOST IMPOSSIBLE TO DUPLICATE. ON JULY 18TH THE CAR ACCELERATED (ON ITS OWN) AGAIN BUT THIS TIME IT DROVE MY WIFE INTO A TREE AT APROX. 35/40 MPH BREAKING HER RIBS. THE BODY SHOP INFORMED ME THIS MORNING THAT THE CAR IS A TOTAL LOSS. MAZDA NEEDS TO GET TO THE BOTTOM OF THIS AND RESOLVE THIS ISSUE ASAP. THIS TIME IT WAS A TREE, THE NEXT TIME IT MAY BE AT A CROSSWALK OR AT AN INTERSECTION. IT'S JUST A MATER OF TIME UNTIL SOMEONE IS KILLED OR AT THE VERY LEAST BADLY HURT. I DON'T KNOW HOW MAZDA CAN BE UNAWARE OF THIS PROBLEM, IT'S ALL OVER THE INTERNET. OUR BODY SHOP PULLED IT UP ON LINE AND WAS SHOCKED AT THE AMOUNT OF COMPLAINTS/ CONCERNS THAT EXISTED RELATED TO THIS PROBLEM. PLEASE INVESTIGATE THIS BECAUSE THE NEXT PERSON MAY NOT BE AS FORTUNATE. THANK YOU IN ADVANCE.

NHTSA complaint #11676813 — an unverified report by a vehicle owner.

Baden, PA Crash 1 injured

ELECTRICAL SYSTEM

..... ON AT LEAST 5 SEPERATE OCCASIONS OUR 2021 MAZDA CX5 SUV ACCELERATED TO A HIGH RATE OF SPEED (ON IT'S OWN). IT HAS DONE IT TO MY WIFE AND I BOTH. I CONTACTED TWO DIFFERENT MAZDA SERVICE CENTERS AND WAS ADVISED THEY HAVE NO KNOWLEDGE OF THIS AND THAT THERE ARE NO OPEN RECALLS OR TSB's AND AS INTERMITTENT AS IT IS IT WOULD BE ALMOST IMPOSSIBLE TO DUPLICATE. ON JULY 18TH THE CAR ACCELERATED (ON ITS OWN) AGAIN BUT THIS TIME IT DROVE MY WIFE INTO A TREE AT APROX. 35/40 MPH BREAKING HER RIBS. THE BODY SHOP INFORMED ME THIS MORNING THAT THE CAR IS A TOTAL LOSS. MAZDA NEEDS TO GET TO THE BOTTOM OF THIS AND RESOLVE THIS ISSUE ASAP. THIS TIME IT WAS A TREE, THE NEXT TIME IT MAY BE AT A CROSSWALK OR AT AN INTERSECTION. IT'S JUST A MATER OF TIME UNTIL SOMEONE IS KILLED OR AT THE VERY LEAST BADLY HURT. I DON'T KNOW HOW MAZDA CAN BE UNAWARE OF THIS PROBLEM, IT'S ALL OVER THE INTERNET. OUR BODY SHOP PULLED IT UP ON LINE AND WAS SHOCKED AT THE AMOUNT OF COMPLAINTS/ CONCERNS THAT EXISTED RELATED TO THIS PROBLEM. PLEASE INVESTIGATE THIS BECAUSE THE NEXT PERSON MAY NOT BE AS FORTUNATE. THANK YOU IN ADVANCE.

NHTSA complaint #11676813 — an unverified report by a vehicle owner.

Baden, PA Crash 1 injured

ENGINE

..... ON AT LEAST 5 SEPERATE OCCASIONS OUR 2021 MAZDA CX5 SUV ACCELERATED TO A HIGH RATE OF SPEED (ON IT'S OWN). IT HAS DONE IT TO MY WIFE AND I BOTH. I CONTACTED TWO DIFFERENT MAZDA SERVICE CENTERS AND WAS ADVISED THEY HAVE NO KNOWLEDGE OF THIS AND THAT THERE ARE NO OPEN RECALLS OR TSB's AND AS INTERMITTENT AS IT IS IT WOULD BE ALMOST IMPOSSIBLE TO DUPLICATE. ON JULY 18TH THE CAR ACCELERATED (ON ITS OWN) AGAIN BUT THIS TIME IT DROVE MY WIFE INTO A TREE AT APROX. 35/40 MPH BREAKING HER RIBS. THE BODY SHOP INFORMED ME THIS MORNING THAT THE CAR IS A TOTAL LOSS. MAZDA NEEDS TO GET TO THE BOTTOM OF THIS AND RESOLVE THIS ISSUE ASAP. THIS TIME IT WAS A TREE, THE NEXT TIME IT MAY BE AT A CROSSWALK OR AT AN INTERSECTION. IT'S JUST A MATER OF TIME UNTIL SOMEONE IS KILLED OR AT THE VERY LEAST BADLY HURT. I DON'T KNOW HOW MAZDA CAN BE UNAWARE OF THIS PROBLEM, IT'S ALL OVER THE INTERNET. OUR BODY SHOP PULLED IT UP ON LINE AND WAS SHOCKED AT THE AMOUNT OF COMPLAINTS/ CONCERNS THAT EXISTED RELATED TO THIS PROBLEM. PLEASE INVESTIGATE THIS BECAUSE THE NEXT PERSON MAY NOT BE AS FORTUNATE. THANK YOU IN ADVANCE.

NHTSA complaint #11676813 — an unverified report by a vehicle owner.

Mays Landing, NJ Crash 2 injured

UNKNOWN OR OTHER

2021 Mazda CX-5. On 8/6/24, I turned right into a parking space between 2 parked vehicles at the DMV parking lot. I turned right and eased into the parking space facing a large Ford F 150 white pickup truck. I was approximately 1-1.5 feet from the front of the white truck. I had my foot on the brake, suddenly the vehicle accelerated by itself and I heard the car revving at a very high rpm and the car took off. My sister was a passenger and she heard it as well. None of the collision or brake notification avoidance features came on the screen or were implemented as a safety measure or accident prevention. I had my foot on the brake and I had no control over the vehicle. The car lurched forward hitting the right side near the headlight of the car on my left and the pickup that was in front of me. My car hit the white pickup so hard that it pushed it out of the parking space in front of me and perpendicular to the parked cars in the row. We both were injured, my sister in ICU and had to have emergency cervical surgery for fractures impinging her cervical spinal cord. The Mazda was totaled. It is impossible for a Mazda to push the Ford F 150 pickup truck, that was facing me , out of the parking space and perpendicular to the row of parked cars with just 12- 14 inches between the pickup truck and my vehicle unless it was revved up to a very high rpm. The police report has some inaccuracies, it states I was turning left into the space but was actually turning right and says I possibly passed out but that is not true. I was in shock when the police questioned me. I have also relived every second of this accident in slow motion many times since. I am a 5 foot women and would have had to floor the gas peddle and even then would not be able to push a large pickup truck out of the space in front of me, and continue out of the parking space landing sideways in a 12-14 inch space between the front of the 2 vehicles.

NHTSA complaint #11612399 — an unverified report by a vehicle owner.

Mays Landing, NJ Crash 2 injured

FORWARD COLLISION AVOIDANCE: WARNINGS

2021 Mazda CX-5. On 8/6/24, I turned right into a parking space between 2 parked vehicles at the DMV parking lot. I turned right and eased into the parking space facing a large Ford F 150 white pickup truck. I was approximately 1-1.5 feet from the front of the white truck. I had my foot on the brake, suddenly the vehicle accelerated by itself and I heard the car revving at a very high rpm and the car took off. My sister was a passenger and she heard it as well. None of the collision or brake notification avoidance features came on the screen or were implemented as a safety measure or accident prevention. I had my foot on the brake and I had no control over the vehicle. The car lurched forward hitting the right side near the headlight of the car on my left and the pickup that was in front of me. My car hit the white pickup so hard that it pushed it out of the parking space in front of me and perpendicular to the parked cars in the row. We both were injured, my sister in ICU and had to have emergency cervical surgery for fractures impinging her cervical spinal cord. The Mazda was totaled. It is impossible for a Mazda to push the Ford F 150 pickup truck, that was facing me , out of the parking space and perpendicular to the row of parked cars with just 12- 14 inches between the pickup truck and my vehicle unless it was revved up to a very high rpm. The police report has some inaccuracies, it states I was turning left into the space but was actually turning right and says I possibly passed out but that is not true. I was in shock when the police questioned me. I have also relived every second of this accident in slow motion many times since. I am a 5 foot women and would have had to floor the gas peddle and even then would not be able to push a large pickup truck out of the space in front of me, and continue out of the parking space landing sideways in a 12-14 inch space between the front of the 2 vehicles.

NHTSA complaint #11612399 — an unverified report by a vehicle owner.

The most recent complaints

In the owners' own words, exactly as filed with NHTSA.

Kissimmee, FL

UNKNOWN OR OTHER

My CX-5 has 25,000 miles and recently the a/c failed culminating in a distinct chemical smell in the cabin. The issue was identified as a leaking/failed evaporator which apparently is located behind the dashboard and in turn “dump” the leaking refrigerant into the cabin! The total cost of repair due to the location of the evaporator is between $3000-$4500 in my area, seems a high cost to be poisoned by a vehicle that only has 25,000 miles on the clock!

NHTSA complaint #11756577 — an unverified report by a vehicle owner.

Carmel, IN

AIR BAGS

My 2021 Mazda CX-5 has developed a persistent rattling/vibration noise from the A-pillar and upper corner of the windshield. The noise appears to originate from the windshield/A-pillar attachment area and may be related to improper adhesion, mounting, weatherstripping, or other components near the top of the windshield. I have found numerous similar owner reports involving Mazda CX-5 and other fourth-generation Mazda models describing rattling, clicking, or vibration from the same windshield/A-pillar area. Because this issue appears to affect a significant number of vehicles, I believe NHTSA should investigate whether there is a common manufacturing or assembly defect and determine whether a manufacturer repair campaign or recall is warranted.

NHTSA complaint #11755858 — an unverified report by a vehicle owner.

Carmel, IN

UNKNOWN OR OTHER

My 2021 Mazda CX-5 has developed a persistent rattling/vibration noise from the A-pillar and upper corner of the windshield. The noise appears to originate from the windshield/A-pillar attachment area and may be related to improper adhesion, mounting, weatherstripping, or other components near the top of the windshield. I have found numerous similar owner reports involving Mazda CX-5 and other fourth-generation Mazda models describing rattling, clicking, or vibration from the same windshield/A-pillar area. Because this issue appears to affect a significant number of vehicles, I believe NHTSA should investigate whether there is a common manufacturing or assembly defect and determine whether a manufacturer repair campaign or recall is warranted.

NHTSA complaint #11755858 — an unverified report by a vehicle owner.

Atlanta, GA Crash

LANE DEPARTURE: WARNING

While driving in the Interstate, a truck swerved towards my lane; I swerved into the next lane to avoid the truck hitting me and when I began to swerve my Lane Departure warning malfunctioned and caused my car to completely shut down. I immediately put my hazard lights on to hopefully avoid being hit; but, a car behind plowed right into my rear end. The police were onsite at the accident. My vehicle has been inspected by an independent service center and my insurance representative.

NHTSA complaint #11755082 — an unverified report by a vehicle owner.

Great Falls, VA

FORWARD COLLISION AVOIDANCE: WARNINGS

I was sitting at a traffic light with my foot on the brake waiting to turn left onto Lee Highway from Fairfax County Parkway. Car jerked forward TWO times in a row, both times hitting the car in front of me. Our lane was at a dead stop waiting for the left hand arrow. The cars to the right of us had the green and were moving forward. I felt like I had no control over the car during this time.

NHTSA complaint #11753806 — an unverified report by a vehicle owner.

Great Falls, VA

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I was sitting at a traffic light with my foot on the brake waiting to turn left onto Lee Highway from Fairfax County Parkway. Car jerked forward TWO times in a row, both times hitting the car in front of me. Our lane was at a dead stop waiting for the left hand arrow. The cars to the right of us had the green and were moving forward. I felt like I had no control over the car during this time.

NHTSA complaint #11753806 — an unverified report by a vehicle owner.

Gilbert, AZ

ENGINE

The vehicle developed an engine oil leak from the timing cover due to what appears to be premature seal failure. Engine oil was leaking externally and could drip onto hot engine components, creating a potential fire hazard while the vehicle is in operation. The leak also increases the risk of low engine oil levels, which could lead to engine damage or sudden engine failure if not detected in time. This issue required an expensive repair despite the vehicle being properly maintained. I have since learned that many other Mazda owners have reported similar timing cover oil leaks on this engine, suggesting this may be a widespread defect rather than normal wear and tear. I am submitting this complaint so NHTSA can evaluate whether this represents a safety-related defect that warrants further investigation.

NHTSA complaint #11753162 — an unverified report by a vehicle owner.

Deridder, LA

ELECTRICAL SYSTEM

The vehicle's Connectivity Master Unit (CMU) suffers from a severe, persistent electronic hardware malfunction that causes the central information display and dashboard telemetry to blink, cycle, and drop signals erratically. This specific hardware architecture failure threatens to corrupt data transmission lines directly connected to the Advanced Driver Assistance System (ADAS), creating an imminent safety risk of unintended automatic emergency braking or false sensor deployment during highway transit. The vehicle utilizes the exact same defective CMU hardware component that the manufacturer has acknowledged and recalled on other model cohorts; however, the manufacturer has explicitly excluded this specific VIN from safety recall eligibility. Diagnostic attempts by the authorized dealer network relied solely on forcing digital software updates that completely failed to correct the core hardware signaling instability, leaving the vehicle un-repaired and presenting an active, unmitigated electrical and safety hazard on public roads.

NHTSA complaint #11750866 — an unverified report by a vehicle owner.

Deridder, LA

FORWARD COLLISION AVOIDANCE: WARNINGS

The vehicle's Connectivity Master Unit (CMU) suffers from a severe, persistent electronic hardware malfunction that causes the central information display and dashboard telemetry to blink, cycle, and drop signals erratically. This specific hardware architecture failure threatens to corrupt data transmission lines directly connected to the Advanced Driver Assistance System (ADAS), creating an imminent safety risk of unintended automatic emergency braking or false sensor deployment during highway transit. The vehicle utilizes the exact same defective CMU hardware component that the manufacturer has acknowledged and recalled on other model cohorts; however, the manufacturer has explicitly excluded this specific VIN from safety recall eligibility. Diagnostic attempts by the authorized dealer network relied solely on forcing digital software updates that completely failed to correct the core hardware signaling instability, leaving the vehicle un-repaired and presenting an active, unmitigated electrical and safety hazard on public roads.

NHTSA complaint #11750866 — an unverified report by a vehicle owner.

Deridder, LA

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

The vehicle's Connectivity Master Unit (CMU) suffers from a severe, persistent electronic hardware malfunction that causes the central information display and dashboard telemetry to blink, cycle, and drop signals erratically. This specific hardware architecture failure threatens to corrupt data transmission lines directly connected to the Advanced Driver Assistance System (ADAS), creating an imminent safety risk of unintended automatic emergency braking or false sensor deployment during highway transit. The vehicle utilizes the exact same defective CMU hardware component that the manufacturer has acknowledged and recalled on other model cohorts; however, the manufacturer has explicitly excluded this specific VIN from safety recall eligibility. Diagnostic attempts by the authorized dealer network relied solely on forcing digital software updates that completely failed to correct the core hardware signaling instability, leaving the vehicle un-repaired and presenting an active, unmitigated electrical and safety hazard on public roads.

NHTSA complaint #11750866 — an unverified report by a vehicle owner.

at 95,000 miles La Crosse, WI

LANE DEPARTURE: BLIND SPOT DETECTION

The contact owns a 2021 Mazda CX-5. The contact stated that while driving 70 MPH on the interstate and changing lanes, the blind spot warning light was inoperable. The contact stated that the blind spot indicator then became operable. An independent mechanic was notified of the failure and stated that the repair was not covered. The local dealer was contacted, where a prior unknown diagnostic test was completed; however, the blind spot failure had not been addressed. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 95,000.

NHTSA complaint #11745846 — an unverified report by a vehicle owner.

New Berlin, WI

ENGINE

2021 Mazda CX‑5 (VIN: [XXX] ). First low‑oil warning at 17,800 miles. ([XXX]) Mazda dealership in La Crosse, WI performed an oil change and fully refilled the oil. Second low‑oil warning at 18,700 miles — only 900 miles later. ([XXX]) This indicates rapid, abnormal oil loss consistent with the known valve‑stem‑seal defect for this model year. Sudden low‑oil conditions pose a safety risk due to potential engine damage or failure. Requesting NHTSA document this issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11740997 — an unverified report by a vehicle owner.

New Berlin, WI

FUEL/PROPULSION SYSTEM

2021 Mazda CX‑5 (VIN: [XXX] ). First low‑oil warning at 17,800 miles. ([XXX]) Mazda dealership in La Crosse, WI performed an oil change and fully refilled the oil. Second low‑oil warning at 18,700 miles — only 900 miles later. ([XXX]) This indicates rapid, abnormal oil loss consistent with the known valve‑stem‑seal defect for this model year. Sudden low‑oil conditions pose a safety risk due to potential engine damage or failure. Requesting NHTSA document this issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11740997 — an unverified report by a vehicle owner.

New Berlin, WI

ENGINE

My 2021 Mazda CX‑5 is experiencing excessive oil consumption. The vehicle is burning oil between regular oil changes, and the oil level drops noticeably before the recommended service interval. I have noticed a burning smell and/or signs of oil loss without visible leaks. This raises concerns about potential engine damage, stalling, or fire risk while driving. The issue has occurred repeatedly and does not seem normal for a vehicle of this age and mileage. I am filing this complaint because this may indicate a defect affecting engine safety and reliability.

NHTSA complaint #11737194 — an unverified report by a vehicle owner.

Caledonia, WI

VEHICLE SPEED CONTROL

2021 Mazda CX5 AWD- Non Turbo Engine. Sunny Day, Dry. My Car was clean. No Precipitation. Some shadows of the interstate light poles across the road 200-300 feet in front of me, but they were thin shadows. Sun Was to my Left. I was driving South on May 01 2026 about 10am on the Interstate going Highway Speeds, with adaptive cruise control "on", in the 2nd lane of a 4 lane interstate. Thankfully no other traffic ahead or behind me. Car slammed on the brakes suddenly, pretty hard. I counteracted and added more gas pedal to keep in going. I turned off the Cruise Control. After a while I re-engaged the Cruise Control and had no issues. This could have been a huge accident in busier traffic. Will get the car checked out at Mazda Dealership Service this week.

NHTSA complaint #11735370 — an unverified report by a vehicle owner.

Caledonia, WI

SERVICE BRAKES

2021 Mazda CX5 AWD- Non Turbo Engine. Sunny Day, Dry. My Car was clean. No Precipitation. Some shadows of the interstate light poles across the road 200-300 feet in front of me, but they were thin shadows. Sun Was to my Left. I was driving South on May 01 2026 about 10am on the Interstate going Highway Speeds, with adaptive cruise control "on", in the 2nd lane of a 4 lane interstate. Thankfully no other traffic ahead or behind me. Car slammed on the brakes suddenly, pretty hard. I counteracted and added more gas pedal to keep in going. I turned off the Cruise Control. After a while I re-engaged the Cruise Control and had no issues. This could have been a huge accident in busier traffic. Will get the car checked out at Mazda Dealership Service this week.

NHTSA complaint #11735370 — an unverified report by a vehicle owner.

Caledonia, WI

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

2021 Mazda CX5 AWD- Non Turbo Engine. Sunny Day, Dry. My Car was clean. No Precipitation. Some shadows of the interstate light poles across the road 200-300 feet in front of me, but they were thin shadows. Sun Was to my Left. I was driving South on May 01 2026 about 10am on the Interstate going Highway Speeds, with adaptive cruise control "on", in the 2nd lane of a 4 lane interstate. Thankfully no other traffic ahead or behind me. Car slammed on the brakes suddenly, pretty hard. I counteracted and added more gas pedal to keep in going. I turned off the Cruise Control. After a while I re-engaged the Cruise Control and had no issues. This could have been a huge accident in busier traffic. Will get the car checked out at Mazda Dealership Service this week.

NHTSA complaint #11735370 — an unverified report by a vehicle owner.

Maricopa, AZ

SERVICE BRAKES

The car has 21000 miles and is driven lightly when applying the brakes the steering wheel started shaking and the car made noises - the brakes could have failed at any time and at any speedl The dealer said the rotors were warped. no warning and no notification from the manufacturer that this could happen at such low miles. i didnt bring the vehicle in because i could not believe the brakes would be at fault with such low miles - it started at 10000 miles. a notification from the manufacturer or dealers would prevent a catastrophic brake failure

NHTSA complaint #11733942 — an unverified report by a vehicle owner.

Rex, GA

ENGINE

Due to oil consumption issues & oil leak on 2021 Mazda cx 5 AWD I was told the timing cover and gasket needs replacement due to oil leakage. This appears to be a very common issue with this vehicle. The engine is at risk of catastrophic failure due to low oil levels

NHTSA complaint #11729087 — an unverified report by a vehicle owner.

at 114,000 miles Arlington, TX

ENGINE

The contact owns a 2021 Mazda CX-5. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance Automatic Emergency Brakes activated unintendedly, and the vehicle jerked to the left and independently accelerated and moved back in the lane intended lane. The vehicle then jerked to the right, unintendedly accelerated, and then went back into the intended lane. Then the vehicle resumed normal operation. While driving approximately 60-65 MPH a week later, the vehicle started jerking. The “Smart City Brake Malfunction” message was displayed, and the engine warning light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 114,000.

NHTSA complaint #11727507 — an unverified report by a vehicle owner.

at 114,000 miles Arlington, TX

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

The contact owns a 2021 Mazda CX-5. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance Automatic Emergency Brakes activated unintendedly, and the vehicle jerked to the left and independently accelerated and moved back in the lane intended lane. The vehicle then jerked to the right, unintendedly accelerated, and then went back into the intended lane. Then the vehicle resumed normal operation. While driving approximately 60-65 MPH a week later, the vehicle started jerking. The “Smart City Brake Malfunction” message was displayed, and the engine warning light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 114,000.

NHTSA complaint #11727507 — an unverified report by a vehicle owner.

at 46,465 miles Saratoga Springs,, NY

ENGINE

The contact owns a 2021 Mazda CX-5. The contact stated that while driving at an undisclosed speed, the low oil warning light illuminated. The vehicle was taken to the dealer however, the vehicle was not diagnosed or repaired. The contact was advised by the dealer to continue adding oil to the engine as needed. The manufacturer was made aware of the failure. The approximate failure mileage was 46,465.

NHTSA complaint #11722089 — an unverified report by a vehicle owner.

at 64,000 miles Kansas City, MO

TIRES:TREAD/BELT

The contact owns a 2021 Mazda CX-5 equipped with Firestone Tires, Tire Line: Destination LE3, Tire Size: 225/55/R19, DOT Numbers: 17XEFLE320725 and 17XEFLE321524. While the vehicle was parked, the contact was informed by a co-worker that there was a bubble on the rear passenger's side tire. The contact inspected the tire and noticed that there was a bubble that was two inches deep and 3 inches long on the side wall of the tire with DOT Number: 17XEFLE321524. The vehicle was taken to Tire Plus, where the tire was replaced. Additionally, the contact stated that while driving at 70 MPH, there was an abnormal popping sound heard, and the TPMS warning light illuminated. The contact was able to pull over to the side of the road. The vehicle was towed to the residence. The contact noticed that there was a 2-inch long crack in the tread of the rear driver's side tire, the tire with DOT Number: 17XEFLE320725. The tire was replaced with the spare tire. The vehicle was then taken to Tire Plus, where the contact was awaiting the tire replacement. The tires were replacement tires. The manufacturer was not notified of the failures. The tire failure mileage was approximately 15,000. The vehicle failure mileage was approximately 64,000. The VIN was not available.

NHTSA complaint #11711078 — an unverified report by a vehicle owner.

at 64,000 miles Kansas City, MO

TIRES:SIDEWALL

The contact owns a 2021 Mazda CX-5 equipped with Firestone Tires, Tire Line: Destination LE3, Tire Size: 225/55/R19, DOT Numbers: 17XEFLE320725 and 17XEFLE321524. While the vehicle was parked, the contact was informed by a co-worker that there was a bubble on the rear passenger's side tire. The contact inspected the tire and noticed that there was a bubble that was two inches deep and 3 inches long on the side wall of the tire with DOT Number: 17XEFLE321524. The vehicle was taken to Tire Plus, where the tire was replaced. Additionally, the contact stated that while driving at 70 MPH, there was an abnormal popping sound heard, and the TPMS warning light illuminated. The contact was able to pull over to the side of the road. The vehicle was towed to the residence. The contact noticed that there was a 2-inch long crack in the tread of the rear driver's side tire, the tire with DOT Number: 17XEFLE320725. The tire was replaced with the spare tire. The vehicle was then taken to Tire Plus, where the contact was awaiting the tire replacement. The tires were replacement tires. The manufacturer was not notified of the failures. The tire failure mileage was approximately 15,000. The vehicle failure mileage was approximately 64,000. The VIN was not available.

NHTSA complaint #11711078 — an unverified report by a vehicle owner.

Monroe, OH

AIR BAGS

Its been few months its giving me air bag issue sign in my car.

NHTSA complaint #11710141 — an unverified report by a vehicle owner.