Technical Service Bulletin Service Campaign — 2021 TOYOTA TUNDRA
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | Service Campaign |
| Manufacturer | |
| Vehicle | 2021 TOYOTA TUNDRA |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
DL: Due to improper programming of the Data Communication Module (DCM), which provides cellular communication in various situations, including emergencies, the driver and Safety Connect operator may not be able to hear each other?s voices during a Safety Connect call
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.
Other TSBs for the 2021 TOYOTA TUNDRA
TSB011120Rev1
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
T-SB-0043-21 Rev
ELECTRICAL SYSTEM:SOFTWARE
T-SB-0087-21
POWER TRAIN
T-SB-0082-20
EQUIPMENT
T-SB-0082-20
ELECTRICAL SYSTEM
T-SB-0082-20
STRUCTURE
T-SB-0039-20
EQUIPMENT