Chevrolet TSB #N202316020
2021 Chevrolet Trailblazer
Affected Component: EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE
- Summary
- Service Update - Radio Software Update (OTA) - Certain 2021 model year vehicles listed above, with an infotainment system, may have a condition where the infotainment system screen will appear black with no audio and no chime at key on during cold temperature conditions. Dealers are to verify radio software level and update if necessary.