FaultScore

FaultScore report

2015 Chevrolet Impala problems

Owners have filed 436 complaints about the 2015 Chevrolet Impala with NHTSA between 2015 and 2026. The largest single group is the electrical system. Across this model's run it ranks 18 of 24 worst.

B

FaultScore 40/100

Higher is worse. Measured against the other years of the Chevrolet Impala.

How this is worked out

The numbers

436

Complaints

13

Crashes reported

17

Fires reported

9

Injuries reported

60,000 mi

Median mileage at failure

Half of reported failures happened before this

28%

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 34 vs 50 Severity 46 vs 50 Early failure 48 vs 50
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 34
Against the median year of the Chevrolet Impala. 50 means typical for this model; 100 means roughly double.
Severity — 46
8.9% of these complaints involved a crash, fire, injury or death, against a national rate of 9.7%.
Early failure — 48
28% of failures with a mileage on record happened under 36,000 miles, against a national rate of 29%.

How 2015 compares with every other Chevrolet Impala

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 2015 Chevrolet Impala

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

0 crashes, 4 fires · median 59,523 mi

Median failure at 62,000 miles

1 crashes, 2 fires · median 40,000 mi

Steering 44 10.1%

1 crashes, 1 fires · median 60,700 mi

Airbags 30 6.9%

2 crashes, 0 fires · median 80,000 mi

Brakes 27 6.2%

3 crashes, 2 fires · median 57,000 mi

Lights 22 5.0%

2 crashes, 0 fires · median 24,300 mi

0 crashes, 1 fires · median 63,211 mi

1 crashes, 4 fires · median 71,000 mi

1 crashes, 1 fires · median 50,000 mi

0 crashes, 1 fires · median 81,680 mi

1 crashes, 1 fires · median 49,500 mi

Acceleration & Cruise Control 8 1.8%

1 crashes, 0 fires · median 60,010 mi

Windows, Mirrors & Wipers 7 1.6%

Median failure at 8,234 miles

Seat Belts 6 1.4%

Median failure at 70,600 miles

Wheels 4 0.9%

Median failure at 105,000 miles

Suspension 3 0.7%
Seats 1 0.2%
Tires 1 0.2%

Median failure at 47,000 miles

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.

Blind Spot Detection 39 57.4%
Body 14 20.6%
Warning 4 5.9%
Rearview System Braking 4 5.9%
Assist 2 2.9%
Warnings 2 2.9%
Sun/Moon Roof Assembly 2 2.9%
Warnings 1 1.5%

When it fails

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

Under 1,000 miles 14 5.3%
1,000 – 9,999 miles 18 6.8%
10,000 – 24,999 miles 22 8.3%
25,000 – 49,999 miles 55 20.8%
50,000 – 74,999 miles 75 28.4%
75,000 – 99,999 miles 37 14.0%
100,000 – 149,999 miles 33 12.5%
150,000+ miles 10 3.8%

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 2015 peak 25 Aug 2026

Recalls on the 2015 Chevrolet Impala

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.

United States — NHTSA

15V465000

AIR BAGS

General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Impala vehicles manufactured April 15, 2013, to June 19, 2015, equipped with front vented-heated passenger seats. Accordingly, the Automatic Occupant Sensing (AOS) system may fail to suppress the front passenger air bag if a child seat is in the front passenger seat. These vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 208, "Occupant Crash Protection."

Risk: If the front passenger air bag deploys with a child seat in the front passenger seat, it increases the risk of injury to the child.

14V541000

PARKING BRAKE

General Motors LLC (GM) is recalling certain model year 2013-2015 Cadillac XTS vehicles manufactured February 14, 2012, to August 22, 2014, and 2014-2015 Chevrolet Impala vehicles manufactured November 5, 2012, to September 2, 2014. In the affected vehicles, the electronic parking brake piston actuation arm may not fully retract causing the brake pads to stay partially engaged.

Risk: Brake pads that remain partially engaged with the rotors may cause excessive brake heat that may result in a fire.

14V489000

STRUCTURE

General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Impala vehicles manufactured May 7, 2014, to July 28, 2014. In the event of an accident, the center storage console may not stay latched. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 201, "Occupant Protection In Interior Impact."

Risk: The storage compartment door may not remain closed in the event of a crash, increasing the risk of occupant injury.

Canada — Transport Canada

Canada runs its own recall programme, and its campaigns do not always mirror the American ones.

Recall 2019420 5,327 units in Canada

Other

Issue: This recall is for aftermarket replacement rear window glass produced by Vitro Automotriz. Certain rear window glass may not have been properly tempered. If the window breaks, the glass may separate into large pieces instead of very small ones. Note: This is a voluntary recall that is not being conducted under the requirements of the Motor Vehicle Safety Act. Safety Risk: Glass that breaks in to large pieces could create a risk of injury. Corrective Actions: The company will notify consumers by mail and instruct them to inspect the designation code marked on the rear window glass. Products affected by this recall have the designation “DOT 287” along with the lettering “VMR” (Replacement Market) and a date code that is before July 2019. This information is printed on the bottom corner of the glass. Consumers should contact Vitro's customer service at 1-412-995-6457 or argbacklites@vitro.com to arrange for replacement of the glass.

Recall 2015325 215 units in Canada

Airbag

Certain vehicles equipped with front vented-heated passenger seats may not comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 208 - Occupant Protection. The Automatic Occupant Sensing (AOS) system may contain a calibration-learning error that will cause the AOS system to fail to suppress the front passenger airbag when an infant seat is placed in the front passenger seat. The front-passenger airbag status light will indicate that the airbag is “on” when the passenger seat is not occupied or is occupied by an infant. Additionally, the front-passenger seat’s safety-belt warning light and chime may turn on when the passenger seat is not occupied and the seatbelt is not buckled. If, despite safety warnings and provincial regulations, a child was placed in a child car seat secured in the passenger front position, the active airbag could deploy in a crash causing potential injury. Correction: Dealers will correct the calibration-learning error by preconditioning the empty seat and resetting the seat zero-value in the ECU.

Recall 2014380 6,137 units in Canada

Brakes

Certain vehicles fail to comply with the requirements of Canada Motor Vehicle Safety Standard 135 - Brake Systems. The electronic parking brake may not fully release, which could cause the brakes to drag. In this condition, the parking brake indicator also may not illuminate even though the parking brake is engaged, contrary to the requirements of the standard. Brake drag could affect vehicle acceleration and cause undesired deceleration, excessive brake heat, and premature wear to some brake components. If the brake drag is significant or if the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke and sparks. Correction: Dealers will update the electronic parking brake software.

Recall 2014341 266 units in Canada

Other

Certain vehicles may not comply with the requirements of Canada Motor Vehicle Safety Standard 201 - Occupant Protection. The center console door may not remain closed in a rear impact, contrary to the requirements of the standard. This could increase the risk of injury in a crash. Correction: Dealers will replace the center console door latch.

Recalls cover specific build ranges, so check your own vehicle by VIN at nhtsa.gov/recalls or, in Canada, Transport Canada.

Complaints that involved harm

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

Saint Louis, MO 1 injured

UNKNOWN OR OTHER

I was just driving down the highway today 15, August 2026 and my sunroof just shattered. I have a moon roof in the back half that sounded like a gunshot. I heard a pop and down falls shards of glass on me while I was driving.

NHTSA complaint #11757186 — an unverified report by a vehicle owner.

at 172,000 miles Telford, PA Fire

ENGINE

The contact owned a 2015 Chevrolet Impala. The contact stated that while the vehicle was parked, turned off, and unoccupied, the front of the vehicle had caught fire. The fire was extinguished by the local fire department. The fire department indicated that the failure may have occurred due to a mechanical malfunction of the vehicle. The vehicle was consumed by the fire. A police report was not filed. The dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was not made aware of the failure. The approximate failure mileage was 172,000

NHTSA complaint #11695820 — an unverified report by a vehicle owner.

at 104,928 miles Ridgeland, MS Fire

ENGINE

TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. WHILE DRIVING 20 MPH SMOKE WAS DETECTED FROM UNDERNEATH THE HOOD. UPON EXITING VEHICLE, THE CONTACT NOTICED OIL EMERGING FROM ENGINE. THE LOW OIL PRESSURE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO STATED THE ROCKER ARM CONTROL NEEDED TO BE REPLACED. THE CONTACT CALLED HERRIN-GEAR CHEVROLET (1685 HIGH ST, JACKSON, MS 39202 601) 354-3882) WHOM INFORMED HER THAT THE PARTS WERE ON BACK ORDER. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 104,928.

NHTSA complaint #11324373 — an unverified report by a vehicle owner.

at 82,000 miles Houston, TX Crash

EXTERIOR LIGHTING

WATER LEAK IN TRUNK DUE TO FAIL TAILLIGHT SEAL THAT CAN CAUSE ELECTRIC ISSUE AND MOLD MILDEW WHICH IS A SAFETY HEALTH ISSUE. HTTPS://WWW.IMPALAFORUMS.COM/THREADS/2015-LTZ-WATER-IN-TRUNK.1299889/ HTTPS://WWW.CHEVYTALK.ORG/FUSIONBB/SHOWTOPIC.PHP?TID/345533/ HTTPS://WWW.YOUTUBE.COM/WATCH?V=SWMZHHAXN5O

NHTSA complaint #11315807 — an unverified report by a vehicle owner.

at 25,000 miles Huntsville, AL Crash

UNKNOWN OR OTHER

AUDIO DOES NOT WORK. INFO INDICATES "OFF". UNABLE TO TURN AUDIO ON.RECEIVED REAR-END BUMP. AFTERWARD NO SOUND FOR WARNING EQUIPMENT OR RADIO. THE VEHICLE WAS BEGINNING FORWARD MOVEMENT. VERY MINOR DAMAGE TO REAR BUMPER AND TRUNK AUDIO OFF AFTER DAMAGE REPAIRED..

NHTSA complaint #11290618 — an unverified report by a vehicle owner.

at 60,000 miles Hermitage, TN Crash

ENGINE

TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 25 MPH, THE VEHICLE STALLED WITHOUT WARNING CAUSING ANOTHER VEHICLE TO CRASH INTO THE REAR. THE CONTACT MENTIONED THAT THE POLICE WAS THERE BUT WAS UNAWARE IF A REPORT WAS FILED. THE AIR BAGS DID NOT DEPLOY. THE CONTACT STATED THAT THERE WERE NO INJURIES. THE VEHICLE WAS NOT DRIVABLE AND WAS TOWED TO A TIRE FACILITY WHERE THE FAILURE WAS UNDETERMINED THE VEHICLE WAS THEN TOWED TO SERRA CHEVROLET BUICK GMC OF NASHVILLE (2340 GALLATIN PIKE N, MADISON, TN 37115 (615) 543-5456) WHERE THE CONTACT FAILED TO REMEMBER THE DIAGNOSIS HOWEVER, DID RECALL THAT THE BATTER WAS REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000. THE VIN WAS NOT PROVIDED.

NHTSA complaint #11242829 — an unverified report by a vehicle owner.

The most recent complaints

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

Saint Louis, MO 1 injured

UNKNOWN OR OTHER

I was just driving down the highway today 15, August 2026 and my sunroof just shattered. I have a moon roof in the back half that sounded like a gunshot. I heard a pop and down falls shards of glass on me while I was driving.

NHTSA complaint #11757186 — an unverified report by a vehicle owner.

at 186,199 miles Anderson, SC

ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER

Odometer Fraud. The contact purchased a 2015 Chevrolet Impala. The contact stated that there was a mileage discrepancy after the purchase. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 182,412. It was later discovered upon checking the Title that the mileage was 186,199.

NHTSA complaint #11755425 — an unverified report by a vehicle owner.

Dekalb, IL

UNKNOWN OR OTHER

The electronic power steering intermittently fails while driving, especially during or after wet conditions. Without warning, the steering wheel becomes extremely stiff and difficult to turn, and a “Service Power Steering” message appears. The failure occurs at any speed and lasts about 1–3 minutes before returning to normal. This has happened multiple times under similar conditions. This creates a serious safety risk because it occurs at highway or city speeds without warning, making the vehicle difficult to control and increasing the risk of a crash. No prior warning is given before the failure other than the dashboard message at the time of the incident. Cause is UNKNOWN. There are numerous reports from other drivers describing similar symptoms, suggesting a potential widespread defect in the electronic power steering system or related components.

NHTSA complaint #11744866 — an unverified report by a vehicle owner.

Flomaton, AL

EXTERIOR LIGHTING

I have always kept my Impala in my garage until recently I started keeping my grandson a few days a week. When I am at that home my car is parked in a driveway open to the elements. About a month after starting I notice that my car started having what I would describe as an electronic issue. The seat belt alarm would go off without me ever touching my seat belt. I have also had to replace my tail lights in my vehicle twice since this started. Then when I packed for a trip yesterday I noticed an awful smell in my trunk. I could not find the source, so I took everything out of my trunk and opened the spare tire compartment which was completely filled with water! I found a Product Bulletin on this. Chevrolet #14047. But it is NOT A RECALL. WHY IS THAT? IT IS CLEARLY AN ERROR ON THEIR PART! CAN YOU EXPLAIN PLEASE?

NHTSA complaint #11740180 — an unverified report by a vehicle owner.

Flomaton, AL

ELECTRICAL SYSTEM

I have always kept my Impala in my garage until recently I started keeping my grandson a few days a week. When I am at that home my car is parked in a driveway open to the elements. About a month after starting I notice that my car started having what I would describe as an electronic issue. The seat belt alarm would go off without me ever touching my seat belt. I have also had to replace my tail lights in my vehicle twice since this started. Then when I packed for a trip yesterday I noticed an awful smell in my trunk. I could not find the source, so I took everything out of my trunk and opened the spare tire compartment which was completely filled with water! I found a Product Bulletin on this. Chevrolet #14047. But it is NOT A RECALL. WHY IS THAT? IT IS CLEARLY AN ERROR ON THEIR PART! CAN YOU EXPLAIN PLEASE?

NHTSA complaint #11740180 — an unverified report by a vehicle owner.

Minneapolis, MN

ELECTRICAL SYSTEM

I brought my vehicle into Chevrolet due to my vehicle locking down and thinking the vehicle is being stolen. They told me that the side module malfunctions due to rain and weather conditions. He then says the part is on back order for possibly 12 months or greater! I drive for my job and blinkers and everything safety shuts down to make It unsafe to sell or be driven. I am at a loss to know how to proceed. I will be contacting the minnesota Attorney General as well. Help please

NHTSA complaint #11730692 — an unverified report by a vehicle owner.

at 212,000 miles Houston, TX

ENGINE

The contact owns a 2015 Chevrolet Impala. The contact stated that while driving at various speeds, the vehicle stalled. The contact was able to restart the vehicle on several occasions. During other failures, the vehicle restarted independently while rolling forward. During one failure, the vehicle had to be towed back to the residence. There was no warning light illuminated. The vehicle was taken to two local dealers who were unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 212,000.

NHTSA complaint #11724709 — an unverified report by a vehicle owner.

at 172,000 miles Telford, PA Fire

ENGINE

The contact owned a 2015 Chevrolet Impala. The contact stated that while the vehicle was parked, turned off, and unoccupied, the front of the vehicle had caught fire. The fire was extinguished by the local fire department. The fire department indicated that the failure may have occurred due to a mechanical malfunction of the vehicle. The vehicle was consumed by the fire. A police report was not filed. The dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was not made aware of the failure. The approximate failure mileage was 172,000

NHTSA complaint #11695820 — an unverified report by a vehicle owner.

Alpharetta, GA

STEERING

Loss of power steering

NHTSA complaint #11694421 — an unverified report by a vehicle owner.

at 109,000 miles Santa Paula, CA

STEERING

The contact owns a 2015 Chevrolet Impala. The contact stated that while driving at 65 MPH, the steering wheel started to feel loose. There was no warning light illuminated. The contact continued driving and the steering wheel tightened with the "Service Power Steering - Drive with Care," message displayed. Due to the failure, excessive force was needed to steer the vehicle. The contact called her husband to meet her for assistance. The contact's husband arrived and was able to drive the vehicle to a dealer. While at the dealer, the vehicle was diagnosed with a defective power steering gear module. The contact was provided an estimate for the repair. The manufacturer was notified of the failure and informed the contact that there were no recalls on the VIN related to the failure. The contact was then referred to the NHTSA Hotline to report the failure. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 109,000.

NHTSA complaint #11680976 — an unverified report by a vehicle owner.

at 66,000 miles Greece, NY

VISIBILITY:SUN/MOON ROOF ASSEMBLY

The contact owns a 2015 Chevrolet Impala. The contact stated that while driving at an undisclosed speed, the shade of the sunroof started to detach, and the sunroof shade started lowering from the sunroof of the vehicle. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 66,000.

NHTSA complaint #11678241 — an unverified report by a vehicle owner.

Cleveland, OH

SEAT BELTS

I am leasing the car out. I’ve been leasing it out for the last three months since March I went delinquent on one of my payments because I have my mechanic look at it and type my VIN number in and they told me that I was recall he couldn’t tell me why I was recall Two days ago, which was Saturday, June 28. The lender called me and told me that the car was recalled. I tried to call him back to discuss what can be done. I have the payment, no response and I don’t have my car and my belongings are in it.

NHTSA complaint #11670442 — an unverified report by a vehicle owner.

Cleveland, OH

SERVICE BRAKES

I am leasing the car out. I’ve been leasing it out for the last three months since March I went delinquent on one of my payments because I have my mechanic look at it and type my VIN number in and they told me that I was recall he couldn’t tell me why I was recall Two days ago, which was Saturday, June 28. The lender called me and told me that the car was recalled. I tried to call him back to discuss what can be done. I have the payment, no response and I don’t have my car and my belongings are in it.

NHTSA complaint #11670442 — an unverified report by a vehicle owner.

Cleveland, OH

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I am leasing the car out. I’ve been leasing it out for the last three months since March I went delinquent on one of my payments because I have my mechanic look at it and type my VIN number in and they told me that I was recall he couldn’t tell me why I was recall Two days ago, which was Saturday, June 28. The lender called me and told me that the car was recalled. I tried to call him back to discuss what can be done. I have the payment, no response and I don’t have my car and my belongings are in it.

NHTSA complaint #11670442 — an unverified report by a vehicle owner.

Von Ormy, TX

UNKNOWN OR OTHER

Transmission control module 158,320 miles

NHTSA complaint #11656363 — an unverified report by a vehicle owner.

Woodhaven, MI

AIR BAGS

Side Blind Zone Alert (SZBA) system continues to be an issue with this vehicle. Sensing module(s) on inner left or right side of bumper cover fail due to water intrusion. When sensing module fails, "Service Side Detection System" message will appear on driver information center on instrument cluster. General Motors has previously issued a special coverage "N172097060", which is available on NHTSA website. As indicated in the special coverage document, if the issue is ignored, "the condition could result in the corruption of LS GMLAN that may result in the loss of some driver interface functions such as cluster, infotainment, displays, chime, and passenger presence detection (passenger airbag could be suppressed). Within approximately 30 days of the "Service Side Detection System" message, while driving, instrument cluster speedometer and tachometer went dead, and airbag warning system notification, anti-theft system, tire pressure monitoring system all illuminated. In addition to no speedometer reading, vehicle ignition/security interlock was causing vehicle to run rough. Vehicle would not immediately restart after shutting vehicle off. This is the 4th time a SBZA sensing module has failed on this vehicle. First failure was replaced under factory warranty, second failure was replaced under special coverage N172097060, third failure was replaced out-of-pocket. Contacted General Motors/Chevrolet, and they are not interested in providing continued coverage of the issue, which is a known issue, and likely a design defect, as the design was changed for later model years.

NHTSA complaint #11655024 — an unverified report by a vehicle owner.

Woodhaven, MI

ELECTRICAL SYSTEM

Side Blind Zone Alert (SZBA) system continues to be an issue with this vehicle. Sensing module(s) on inner left or right side of bumper cover fail due to water intrusion. When sensing module fails, "Service Side Detection System" message will appear on driver information center on instrument cluster. General Motors has previously issued a special coverage "N172097060", which is available on NHTSA website. As indicated in the special coverage document, if the issue is ignored, "the condition could result in the corruption of LS GMLAN that may result in the loss of some driver interface functions such as cluster, infotainment, displays, chime, and passenger presence detection (passenger airbag could be suppressed). Within approximately 30 days of the "Service Side Detection System" message, while driving, instrument cluster speedometer and tachometer went dead, and airbag warning system notification, anti-theft system, tire pressure monitoring system all illuminated. In addition to no speedometer reading, vehicle ignition/security interlock was causing vehicle to run rough. Vehicle would not immediately restart after shutting vehicle off. This is the 4th time a SBZA sensing module has failed on this vehicle. First failure was replaced under factory warranty, second failure was replaced under special coverage N172097060, third failure was replaced out-of-pocket. Contacted General Motors/Chevrolet, and they are not interested in providing continued coverage of the issue, which is a known issue, and likely a design defect, as the design was changed for later model years.

NHTSA complaint #11655024 — an unverified report by a vehicle owner.

Woodhaven, MI

LANE DEPARTURE: BLIND SPOT DETECTION

Side Blind Zone Alert (SZBA) system continues to be an issue with this vehicle. Sensing module(s) on inner left or right side of bumper cover fail due to water intrusion. When sensing module fails, "Service Side Detection System" message will appear on driver information center on instrument cluster. General Motors has previously issued a special coverage "N172097060", which is available on NHTSA website. As indicated in the special coverage document, if the issue is ignored, "the condition could result in the corruption of LS GMLAN that may result in the loss of some driver interface functions such as cluster, infotainment, displays, chime, and passenger presence detection (passenger airbag could be suppressed). Within approximately 30 days of the "Service Side Detection System" message, while driving, instrument cluster speedometer and tachometer went dead, and airbag warning system notification, anti-theft system, tire pressure monitoring system all illuminated. In addition to no speedometer reading, vehicle ignition/security interlock was causing vehicle to run rough. Vehicle would not immediately restart after shutting vehicle off. This is the 4th time a SBZA sensing module has failed on this vehicle. First failure was replaced under factory warranty, second failure was replaced under special coverage N172097060, third failure was replaced out-of-pocket. Contacted General Motors/Chevrolet, and they are not interested in providing continued coverage of the issue, which is a known issue, and likely a design defect, as the design was changed for later model years.

NHTSA complaint #11655024 — an unverified report by a vehicle owner.

at 84,000 miles Havana, FL

POWER TRAIN

The contact owns a 2015 Chevrolet Impala. The contact stated while driving approximately 70 MPH, the transmission was slipping and unexpectedly downshifted to a lower gear. The contact stated that the vehicle violently shuddered. The contact stated that the check engine and stability control warning lights were illuminated. The contact stopped the vehicle due to the shaking and shuddering and had the vehicle towed to a dealer. The dealer diagnosed the vehicle and determined that the Transmission Control Module and a wiring harness needed to be replaced. The vehicle was repaired. The contact stated that the failure recurred two more times. The contact had taken the vehicle to the same dealer, and the TCM was replaced. The vehicle was repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 84,000.

NHTSA complaint #11654813 — an unverified report by a vehicle owner.

at 130,733 miles Columbus, MS

ELECTRICAL SYSTEM

The contact owns a 2015 Chevrolet Impala. The contact stated that while her mother was starting the vehicle, there was an abnormal plastic burning odor and smoke entering the vehicle through the air vents on the center console. The contact stated that a neighbor assisted and became aware that the sun visor vanity mirror on the driver's side was melted off the visor. There was no fire. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 130,733.

NHTSA complaint #11647831 — an unverified report by a vehicle owner.

Uniontown, PA

SEATS

passenger front seat presence sensor says someone is sitting in the seat even when empty. also seat belt warning light and audible alert is affected. I occasionally have four small children In the vehicle which is concerning because the airbag could go off when a child is sitting in the front seat.

NHTSA complaint #11645159 — an unverified report by a vehicle owner.

Uniontown, PA

SEAT BELTS

passenger front seat presence sensor says someone is sitting in the seat even when empty. also seat belt warning light and audible alert is affected. I occasionally have four small children In the vehicle which is concerning because the airbag could go off when a child is sitting in the front seat.

NHTSA complaint #11645159 — an unverified report by a vehicle owner.

Uniontown, PA

AIR BAGS

passenger front seat presence sensor says someone is sitting in the seat even when empty. also seat belt warning light and audible alert is affected. I occasionally have four small children In the vehicle which is concerning because the airbag could go off when a child is sitting in the front seat.

NHTSA complaint #11645159 — an unverified report by a vehicle owner.

Waterbury, CT

STEERING

I was driving my 2015 Chevy Impala on the highway and my steering gave out into a curve. I got deeply afraid when the steering froze up on me, specially at 50 into a 40 mile rated speed. I say this because I wasn't aware that GM vehicles stop putting power steering pumps in their cars nice the late 2000's. I called onstar and inform them to the problem I was having with the car. I was able to get it to a safe spot. And the vehicle towed a dealership for servicing. I was told it was software malfunction that needed to be updated. Costing me $775, which my insurance company under CarCare wouldn't cover. I canceled them quickly. The car steered fine after getting it back. Then the same issue happened again a day later I call the dealership again close to my home, they told me the motor on the steering rack and pinion gave out. And was going to cost, 4100 dollars. I had another insurance company Endurance. They said they'll cover the rack but not the motor to the service department and denied the claim. Out of anger of payments to both insurance companies. The vehicle was traded in for a newer car. Value at 2000 dollars for trade. I'm bringing this to attention because GM is aware of this issue and don't want yo acknowledge this safety issue. Thank God I'm able to stronghold the car and bring it to safe spot. But for others with the Chevy Impala's not so lucky! These vehicles are scary and a dangerous for highway running, after the warning light appears on the dash!

NHTSA complaint #11632400 — an unverified report by a vehicle owner.

Spokane, WA

ELECTRICAL SYSTEM

GM has a know issue with the side detection system and refuses to do anything about it even after there service bulletin expired. When this fail it can cause other issues with the dashboard system failure and more. In this case the system would never shutdown draining the battery.

NHTSA complaint #11631054 — an unverified report by a vehicle owner.