NHTSA (USA)High Risk
2018 CHEVROLET SONICNHTSA Campaign #18V342000
The official notice
Defect
General Motors LLC (GM) is recalling certain 2018 Chevrolet Sonic vehicles. A joint in the driver's seat-back frame may not be properly welded, reducing the strength of the seat-back frame.
Safety Risk
In the event of a rear-impact crash, the seat-back may fail, increasing the risk of injury.
Remedy
GM will notify owners, and dealers will replace the driver's seat-back, free of charge. The recall began June 28, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18178.
71 vehicles affectedMfr ref: 18178Updated June 10, 2026