Technical Service Bulletin 07-08-42-006U — 2009 GMC SIERRA 1500
EXTERIOR LIGHTING
Bulletin Details
| TSB ID | 07-08-42-006U |
| Manufacturer | |
| Vehicle | 2009 GMC SIERRA 1500 |
| Component | EXTERIOR LIGHTING |
| Communication Date |
Bulletin Summary
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.