GMC TSB #PIT4551F
2010 GMC Sierra 2500
Affected Component: ELECTRICAL SYSTEM:WIRING
- Summary
- This Preliminary Information communication provides information to the technician that during the Pre-Delivery Inspection it may be noticed that the backup alarm is inoperative. Technician can locate the wire harness on the right rear of the frame. Technician can route the harness up and over the spare tire hoist tube and connect to the backup alarm.