There are 3 stored owner reports matching the powertrain & transmission leading-label group for the 2016 Chevrolet Sonic in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2016 Chevrolet Sonic. The contact stated that while driving at various speeds, the vehicle would not properly accelerate while depressing the accelerator pedal. The contact indicated that the RPMs increased but the vehicle would not accelerate as needed. Additionally, while operating the vehicle, the cruise control would erroneously activate. The cause of the failure was not yet determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 80,000.
PURCHASED MY CAR IN OCTOBER OF 2018. IN JULY OF 2019, MY CHECK ENGINE LIGHT CAME ON, FOLLOWED SHORTLY AFTERWARD BY THE TEMPERATURE OVERHEAT GAUGE. TOOK MY CAR IN AND WAS TOLD THAT MY THERMOSTAT NEEDED REPLACED AND THAT THIS IS COMMON WITH MY MAKE/MODEL. REPLACED THE THERMOSTAT. IN JANUARY 2020, CHECK ENGINE LIGHT CAME ON AGAIN, WITH A PO599 CODE. TOOK IT TO LOCAL AUTO SHOP TO HAVE IT DIAGNOSED; THEY SAID THAT THE CHECK ENGINE LIGHT CAME ON WHEN STARTING THE CAR, SO LIKELY WASN'T AN OVERHEATING ISSUE. THEY THOUGHT IT WAS THE SENSORS/CIRCUITS. AFTER RUNNING DIAGNOSTIC CHECK, AGAIN SUGGESTED REPLACING THE THERMOSTAT. THIS IS NOW THE SECOND TIME THE THERMOSTAT HAS NEEDED REPLACED IN THE YEAR AND THREE MONTHS THAT I HAVE OWNED THE VEHICLE. WHEN AT JIFFY LUBE, I WAS TOLD THAT THEY HAD SEEN AT LEAST FOUR OTHER SONICS COME IN WITH THE SAME CHECK ENGINE CODE.
TL* THE CONTACT OWNS A 2016 CHEVROLET SONIC. WHILE DRIVING 15 MPH, THE VEHICLE SHUT OFF WITHOUT WARNING. THE CONTACT ALSO MENTIONED THAT THE VEHICLE SHUT OFF WITHOUT WARNING WHILE AT A COMPLETE STOP. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHERE THEY DIAGNOSED THE VEHICLE AND REPLACED THE OXYGEN SENSOR; HOWEVER, THE FAILURE PERSISTED. THE CONTACT TOOK THE VEHICLE BACK TO THE INDEPENDENT MECHANIC ON NUMEROUS OCCASIONS AND HAD THE THERMOSTAT AND INTAKE MAIN GASKET SET REPLACED, AND AN ENGINE TUNE -UP; HOWEVER, THE FAILURE CONTINUED. THE MANUFACTURER AND DEALER WERE NOT NOTIFIED OF THE FAILURES. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 78,456.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.