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Service bulletin 21TC04 - CHR - C

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10201364
Published by NHTSA2021-09-13
Manufacturer's number21TC04 - CHR - C
Manufacturer's date2021-07-08
NHTSA componentSEAT BELTS; EQUIPMENT:ELECTRICAL

NHTSA's summary

TI TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 21TC04 Incorrect Programming for Rear Seat Belt Reminder Indicator CERTAIN 2021 Model Year C-HR

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Seat belts

Vehicles listed
TOYOTA C-HR2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
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TTT059920 Rev42022-06-21. Service bulletin. TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns
T-TT-0611-20 Rev2022-06-13. Service bulletin. TT: To assist with the early detection and early resolution of audio related concerns, it may be requested as part of the remanufactured head unit return to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by audio suppliers, FTS, and/or FPEs
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