Technical Service Bulletin 990525004 — 1990 GMC C SERIES
EXTERIOR LIGHTING
Bulletin Details
| TSB ID | 990525004 |
| Manufacturer | |
| Vehicle | 1990 GMC C SERIES |
| Component | EXTERIOR LIGHTING |
| Communication Date |
Bulletin Summary
CONCERNS WITH INTERMITTENT MULTIFUNCTION ALARM ACTIVATION. *TT
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.