2015 Chevrolet Sonic

114 complaints on file, page 1 of 6.

1. Filed May 23, 2026Failure Oct 18, 2023Leavenworth, KSAir bags

   Passenger seat airbag shows that it is still off even when there is someone in the Passenger seat

   NHTSA complaint 11739750
2. Filed Sep 29, 2025Failure Mar 14, 202460,700 milesPhoenix, AZSpeedometer/odometer

   Odometer Fraud. The contact owns a 2015 Chevrolet Sonic. The contact purchased the vehicle from a dealer in March 2024. The contact stated that when the vehicle was purchased, the odometer at 60,000, and the advertisement stated 60,000. The contact recently acquired the Carfax report, which indicated that in April 2015, the odometer reading was 15,073 miles. The Carfax report indicated that the odometer reading was reported in April 2024 at 60,700 miles. The dealer was made aware of the discrepancy but provided no assistance.

   NHTSA complaint 11690289
3. Filed Jul 10, 2025Failure Jul 10, 2025Austin, TXAssist, Unknown or other, Wheels

   my recall is already completed, why on the your website still showing incompleted?

   NHTSA complaint 11672416
4. Filed Feb 3, 2025Failure Mar 3, 2024115,000 milesWilbraham, MACatalytic convertor

   The contact owns a 2015 Chevrolet Sonic. The contact stated that while operating the vehicle, the check engine light remained illuminated. The vehicle was taken to the local mechanic who diagnosed that the catalytic converter was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not contacted. The failure mileage was 115,000.

   NHTSA complaint 11640293
5. Filed Oct 27, 2024Failure Aug 7, 2024Maybrook, NYElectrical system, Fuel/propulsion system, Unknown or other

   I have had this vehicle for three years now and no matter of the repairs I had done to it by machanics the check engind light continue to turn on and the vehicle has shut down on the road and I can't find out what the solution is. I am afraid to drive it.Also the mylink radio which has all the vehicle settings in it has malfunctioned. I cannot get to reset veichle settings. Vehicle will not turn over on the first key turn. The engine turns over on the third or forth turn and when it dose there is a loud ratteling noise.

   NHTSA complaint 11622159
6. Filed Oct 16, 2024Failure Jun 1, 2024Chapel Hill, NCElectrical system

   Right Hand Steering Wheel Controls Inoperative, Outside Ambient Temperature Reading on Radio Display Inoperative, inoperative rear vision camera gridlines, and Onstar Menu Screen is Not Showing When Pressing Onstar Button. Inoperable radio steering wheel control buttons increase driver distraction risk in reaching for the radio display. Absence of rear camera gridlines reduce driver guidance in reverse. Onstar menu not starting in case of need. Reported in existing GM Technical Service Bulletin 16-NA-347. [XXX] ) Related to completed Key Chime recall completed prior to October 10, 2016. Current vehicle codes were reviewed by Hendrick Chevrolet Buick GMC Southpoint, and no existing error codes related to the issue were presented. No warning lamps on, messages on radio display, or other symptoms. Errors all presented simultaneously with no warning. Appeared first June 2024. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11620044
7. Filed Sep 26, 2024Failure Aug 29, 2024Stockton, CAPower train

   Code U0101 is set. Unable to communicate with TCM. Troubleshooted and found TCM is bad. Removed necessary components for tcm replacement. Removed the tcm/valve body assembly and replaced. Replaced necessary gaskets and reinstalled necessary components. Set transmission fluid level to specifications per procedure. Dealer advised they stock 3 TCM at all times due to many failures and demands of TCM.

   NHTSA complaint 11616544
8. Filed Aug 21, 2024Failure Apr 4, 2024Weatheeford, TXEngine, Fuel/propulsion system

   Stalls when reduced speed. CEL constant. Codes indicate Emission promlem. Cleared by replacing intake valve. CEL came back on.

   NHTSA complaint 11609919
9. Filed Jul 3, 2024Failure May 6, 2024Scranton, PAAir bags

   The air bags deployed while the vehicle was in motion. No Collision or impact occurred.

   NHTSA complaint 11598544
10. Filed Mar 19, 2024Failure Dec 10, 2023117,000 milesMuskogee, OKEngine

    The contact owns a 2015 Chevrolet Sonic. The contact stated while driving at an undisclosed speed, upon coming to a complete stop, the vehicle inadvertently lost motive power. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The traction control and check engine warning lights were illuminated. The vehicle was taken to an independent mechanic, who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 117,000.

    NHTSA complaint 11578281
11. Filed Jan 3, 2024Failure Oct 28, 202380,000 milesShiloh, OHElectrical system, Equipment

    The contact owns a 2015 Chevrolet Sonic. The contact stated the audible indicators for the driver's seat belt and the "Key Left in Ignition' was inoperable. The contactor also stated that the radio powered on independently, causing the driver to be startled due to the loud volume. No warning lights were illuminated. The contact stated that the failure persisted. The vehicle was diagnosed by the dealer, but not repaired. The vehicle was not included in NHTSA Campaign Number: 16V422000 (Electrical System, Equipment), 16V257000 (Equipment, Electrical System) or 15V416000 (Equipment). The manufacturer was not made aware of the failure. The approximate failure mileage was 80,000.

    NHTSA complaint 11563279
12. Filed Sep 21, 2023Failure Sep 21, 2023Bowling Green, KYElectrical system

    First sign of problem - Sept. 2021. Driving on highway at about 35 mph. Simultaneously, engine quit running, door locks unlocked and all dash lights came. In a matter of less than a second the doors relocked, forward momentum of vehicle caused transmission to kick start the engine and jolt forward rather violently. Then the dash lights went off and the vehicle resumed normal operation. This continued to happen with increasing frequency. I took the vehicle to the local Chevy dealer to set up an appointment for service. When I explained the problem to the representative, he told me that the battery was the likely cause. I went to an auto parts store and had the battery checked. It did, indeed, have a bad cell. I replaced the battery and the car operated fine for several months but the problem began to recur, infrequently at first but continued to worsen. I discovered later that the same problem also happened when when the car was sitting idling. The difference was that without the forward momentum of the car, the engine did not restart and required being shifted into neutral and started with the key. Also, when driving at a speed of less than about 30 mph, the forward motion was not enough to kick start the engine and shifting into neutral and using the key to restart was necessary while coasting in traffic. Final symptom, the above has happened only now the dash lights go out and the vehicle does not respond at all. After several minutes and several attempts the lights come back on and the vehicle runs. The car had 55,563 miles on it when I bought it and in just over 3 years, I have put 6,237 miles on it and it now sits because I am afraid to drive it. I have had the vehicle back at the dealer twice since having the new battery installed. They simply tell me that they cannot recreate to get a code and therefore cannot help.

    NHTSA complaint 11545878
13. Filed Jun 25, 2023Failure Jun 24, 2023Aurora, ILAir bags

    Air bag light on. There are 4 codes in the SDM, due to an internal fault in the sensing diagnostic module. The dealership states that it has to be replaced and will cost close to $1100 to have repaired and to clear all of the codes.

    NHTSA complaint 11528703
14. Filed Jun 7, 2023Failure Jun 2, 2023Aurora, INPower train

    We have a 2015 Chevrolet Sonic Lt that we bought from car country in Aurora Indiana the transmission has gone the dealer told that the had been serviced but it never was so now we can't drive the car and its just sitting in the our driveway we reported it to car country about the transmission and they totally ignored us about it and refusing to help

    NHTSA complaint 11525910
15. Filed Jun 5, 2023Failure Apr 11, 2023San Diego, CAEngine, Fuel/propulsion system

    My cars coolant is leaking and the source is unknown. My car has overheated twice and my mechanic has been unable to find what needs to be repaired. The coolant has need to to be filled twice within a 6 month period. Now my car is having other issues with the catalyst system that lead me to believe the coolant leak might be affecting these other parts. My catalytic converter was already replaced and the same code has popped up 4 months later.

    NHTSA complaint 11525327
16. Filed Apr 27, 2023Failure Apr 23, 2023Waterford, PAAir bagsCrash1 injured

    Passenger side front airbags did not deploy during a front end vehicle crash. All other airbags in vehicle did deploy. Injury did occur due to this.

    NHTSA complaint 11519192
17. Filed Jan 11, 2023Failure Jul 2, 202239,000 milesStockbridge, GAElectrical system, Latches/locks/linkages

    The contact owns a 2015 Chevrolet Sonic. The contact stated that while the vehicle was turned on with the transmission in park(P), the doors would erroneously lock. On several occasions after parking and turning the vehicle off, moments later the vehicle would not restart. The vehicle was taken to an independent mechanic who checked the battery but found no failure. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet contacted. The failure mileage was 39,000.

    NHTSA complaint 11501197
18. Filed Dec 2, 2022Failure Dec 2, 2022Marana, AZUnknown or other4 injured

    The driver, and front passenger interior door handles the metallic chrome coating starts to lose its adhesive. When opening the door from the inside it cuts your hands if you don't notice it. Both door handles started to have the same issue within the same year. My children, my wife and myself all have been cut from the same problem. I tried to remove the parts that caused the injury due to us not being home and still required to use the door handles. I didn't want further injury to occur to my family.

    NHTSA complaint 11495754
19. Filed Oct 19, 2022Failure Oct 1, 202286,000 milesChesterton, INCatalytic convertor

    The contact owns a 2015 Chevrolet Sonic. The contact stated that while operating the vehicle, the odor of exhaust fumes was present inside the cabin of the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the catalytic converter was faulty and needed to be replaced. The vehicle was not yet repaired. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet notified of the failure. The VIN was not available. The failure mileage 86,000.

    NHTSA complaint 11490021
20. Filed Sep 9, 2022Failure Sep 8, 2022Emporia, KSElectrical system, Engine

    Once again, my doors unlocked then relocked, my dashboard lights went out and the engine stalled. I was on the KU campus when this happened 3 times within 6 blocks. This is getting very scary, especially when i am in a busy area of town. No codes have ever popped up. This has been happening since May 2022. I will keep reporting, hopefully there will be a recall soon. Very frustrated with this situation!

    NHTSA complaint 11483637