GMC TSB #18245
2018 GMC Terrain
Affected Component: STEERING: STEERING WHEEL/HANDLE BAR
- Summary
- 18245 - Service Update - A 250-millisecond power steering instability occurs as soon as APA (Advanced Park Assist) begins turning the steering wheel into a parking spot. If steering wheel shudder occurs, APA aborts the procedure. Reprogramming of PSCM (Power Steering Control Module).