Technical Service Bulletin 01637 — 2003 CHEVROLET SIERRA
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 01637 |
| Manufacturer | |
| Vehicle | 2003 CHEVROLET SIERRA |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
TRANSFER CASE INOPERATIVE OR SHIFTS TO 4LO AFTER ENCODER MOTOR SENSOR REPLACEMENT. *MJ
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.