Technical Service Bulletin 20-NA-121 — 2023 CHEVROLET TRAILBLAZER
EQUIPMENT
Bulletin Details
| TSB ID | 20-NA-121 |
| Manufacturer | |
| Vehicle | 2023 CHEVROLET TRAILBLAZER |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant to correct customer concerns of Various Electrical Issues, No Start, Stall, Brake Lamp Not Off, Radio Inoperative, Remote Key Inoperative, Malfunction Indicator Lamp (MIL) Illuminated with Possible DTCs.
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.