Technical Service Bulletin 4540 — 2008 GMC ENVOY
SERVICE BRAKES, AIR
Bulletin Details
| TSB ID | 4540 |
| Manufacturer | |
| Vehicle | 2008 GMC ENVOY |
| Component | SERVICE BRAKES, AIR |
| Communication Date |
Bulletin Summary
VEHICLE SHAKES OR VIBRATES AT HIGHWAY SPEEDS. *NJ UPDATED 8/25/08. *PE
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.