*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Electrical system
My 2018 Chevrolet Sonic 1.8L has experienced repeated complete battery discharge and electrical failures over approximately two years. The factory infotainment system does not consistently shut down after the ignition is turned off. I must follow a specific shutdown procedure or occasionally remove the infotainment fuse to prevent battery drain. On October 10, 2026, after a three-day trip, the vehicle was completely dead. My 2,000-amp portable jump starter could not start it. Another running vehicle had to supply power before it would start. The vehicle then operated and restarted normally for approximately three days. On October 13, 2026, after several successful starts, I parked at 10 AM.…
Oct 13, 2026Engine
Dear GM Executive Office, I am writing in frustration and disappointment after being told today by Chevrolet Customer Assistance that the case I opened (Case # [XXX]) was simply a "dealer complaint" and that no further help would be offered - despite my vehicle exhibiting a recurring, safety-related malfunction covered under Special Coverage N232395330 - Turbocharger Replacement. To Whom It May Concern, I am writing to formally request a resolution regarding a recurring and unresolved issue with my sonâs 2018 Chevrolet Sonic Premier (Turbocharged engine), VIN: [XXX] This past January we brought the vehicle to Ziegler Buick GMC of Lincolnwood an authorized due to overheating and a warning…
Jul 12, 2025Fuel system, gasoline
The contact owns a 2018 Chevrolet Sonic. The contact stated that while driving at an undisclosed speed, the engine was idling roughly. The contact stated that the check engine warning light was illuminated. Additionally, the contact stated that the vehicle was consuming an excessive amount of fuel. The contact stated that the canister purge valve had previously been replaced, but the failure persisted. The vehicle was taken to an independent mechanic, who determined that the canister purge valve needed to be replaced a second time. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 85,000.
May 14, 2025 · 85,000 milesUnknown or other
My car has had CAM shaft issues upon buying the car. I have taken the car to Chevrolet in Dallas and in Forney, TX and the car still has the same issue. My car engine check light has remained on and consulting a personal mechanic, they informed me that this could be a recall issue and that I should report it.
Nov 5, 2018Air bags › Sensor › Occupant classification › Front passenger
The contact owns a 2018 Chevrolet Sonic. The contact stated that while a 95-pound passenger was seated in the front passengerâs seat, the air bag system was deactivated. The vehicle was taken to the local dealer who was unable to determine a failure and indicated no failure was found. The manufacturer was notified of the issue. The failure mileage was 15,000.
Jan 21, 2021 · 15,000 milesElectrical system
The has as well as mileage is not accurate and it constantly changes even while not driving which is adding more miles to car than actually is and you will never know how much gas you have in car truly which is safety concern especially if you are driving on interstate and canât tell how much gas you have in car and suddenly run out of gas while other are behind you going 70 mph which can cause a wreck
Mar 1, 2022Seats
The contact owns a 2018 Chevrolet Sonic. The contact stated that operating the vehicle, the front driver side seat would erroneously slide forward causing the driver's knees to make contact with the dash panel. In addition, while driving at various speeds the vehicle had suddenly stalled. The vehicle was taken to the local dealer who diagnosed that the electronic control unit hardware was faulty. Also, the emergency brake cable was hanging low to the ground under the vehicle. The vehicle was not repaired. The local dealer was notified of the failures. The manufacturer was not contacted. The failure mileage was 28,000.
Oct 1, 2020 · 28,000 milesElectrical system
MY RADIO TURNS OFF AND ON, ON ITS OWN. ALSO WHEN I HAVE MY BLUETOOTH TURNED ON FOR MY PHONE, IT GETS STUCK AFTER I HANG UP THE PHONE AFTER A CALL. I WAS DRIVING HOME FROM WORK ON A STATE ROAD. MY RIGHT WHEEL BEARING WENT OUT AND I HAD TO REPLACE IT LAST YEAR.
Mar 1, 2021 · 96,000 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
