Technical Service Bulletin 990603004 — 1998 GMC T SERIES
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 990603004 |
| Manufacturer | |
| Vehicle | 1998 GMC T SERIES |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
CUSTOMER MAY COMPLAIN ABOUT HORN SOUNDING, NO START DUE TO WATER INTRUSION INTO ACCESSORY WIRING JUNCTION BLOCK. *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.