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What 14 owners told NHTSA about the 2018 Chevrolet Sonic
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
2 of 14 complaints match · Seats · clear filters
Oct 12, 2021Parking BrakeSeatsEngine
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.
NHTSA ODI 11436408
Nov 14, 2018Seats
MY DRIVER SEAT DROPS A LEVEL WHILE I DRIVE . VERY DANGEROUS AND HAZARDOUS.
NHTSA ODI 11151389
Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 19, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your
pre-purchase inspection list. Back to the
full 2018 Chevrolet Sonic verdict →