GMC TSB #PI1149A
2018 GMC Savana
Affected Component: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
- Summary
- This preliminary information bulletin provides a procedure on how to check for the customer concern of a blank radio with/without audio, by checking the the wiring harness, ECU and reprograming the HMI software update, if the wiring or ECU are not the cause.