# Service bulletin 21TC04 \- Dealer

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.

- Type: Service bulletin
- NHTSA id: 10201366
- Published by NHTSA: 2021\-09\-13
- Manufacturer's number: 21TC04 \- Dealer
- Manufacturer's date: 2021\-07\-08
- NHTSA component: SEAT BELTS; EQUIPMENT:ELECTRICAL

## NHTSA's summary

DD: Certain 2021 Model Year C\-HR Incorrect Programming for Rear Seat Belt Reminder Indicator

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201366-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201366-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Seat belts

## Vehicles listed

- 2021 TOYOTA C\-HR

## Other bulletins for the same vehicles and component

- [TSB010622](/bulletins/10252259.md), 2024-04-01, Service bulletin: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\); UNKNOWN OR OTHER. TSB: Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool \(SST\) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update, however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the expiration date of the dynamic subscription \(stored in the head unit\), must be checked. If the expiration date has not passed, a license key may be generated without the purchase of an Activation Card Number \(ACN\). Updating the map without the use of an ACN is considered an Embedded Navigation Update \(refer to pg. 10\) and performing this update does not extend the subscription to dynamic map services. If the subscription period has expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an ACN. Utilizing an ACN, will initiate the Dynamic Navigation Update \(refer to pg. 4\). This Dynamic Navigation Update will perform the embedded navigation update and provide dynamic map services for a period of two years from the date that the Dynamic Navigation Update is performed. ACNs are provided in a pamphlet available through the normal parts ordering system. Follow the process in this bulletin to perform the update.
- [TSB003220](/bulletins/10244113.md), 2023-10-16, Service bulletin: VEHICLE SPEED CONTROL; AIR BAGS; EQUIPMENT. TSB: Replacement certification labels \(the vinyl label installed on the driver door or door post\) and VIN plates \(the metal plate riveted to dashboard\) \(see Figure 1\) for most 1979 ? 2023 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate.
- [T\-SB\-0057\-18](/bulletins/10238157.md), 2023-06-26, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system.
- [T\-TT\-0611\-20 Rev](/bulletins/10230376.md), 2023-01-17, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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.
- [T\-SB\-0106\-22](/bulletins/10230360.md), 2023-01-17, Service bulletin: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). TSB: Some 2018 ? 2022 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System, require a Special Service Tool \(SST\) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update, however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the expiration date of the dynamic subscription \(stored in the head unit\), must be checked. If the expiration date has not passed, a license key may be generated without the purchase of an activation card number \(ACN\). Updating the map without the use of an ACN is considered an Embedded Navigation Update \(refer to pg. 10\) and performing this update does not extend the subscription to dynamic map services. If the subscription period has expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an ACN. Utilizing an ACN, will initiate the Dynamic Navigation Update \(refer to pg. 4\). This Dynamic Navigation Update will perform the embedded navigation update and provide dynamic map services for a period of two years from the date that the Dynamic Navigation Update is performed. ACNs are provided in a pamphlet available through the normal parts ordering system
- [TTT059920 Rev4](/bulletins/10214347.md), 2022-06-21, Service bulletin: EQUIPMENT. 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 Rev](/bulletins/10213897.md), 2022-06-13, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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
- [22TC01 Technical](/bulletins/10211819.md), 2022-05-16, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR 22TC01 DATA COMMUNICATION MODULE \(DCM\) REPROGRAMMING CERTAIN 2021 MODEL YEAR C\-HR, RAV4 PRIME, TUNDRA CERTAIN 2021\-2022 4RUNNER, HIGHLANDER, HIGHLANDER HV, PRIUS PRIME, SEQUOIA, TACOMA CERTAIN 2022 PRIUS
- [22TC01 Team Memb](/bulletins/10211800.md), 2022-05-16, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SSC: Toyota Over\-The\- Air \(OTA\) Pilot Program Team Members SPECIAL SERVICE CAMPAIGN 22TC01
- [22TC01 Team Memb](/bulletins/10210366.md), 2022-04-18, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; SEAT BELTS. SSC: SPECIAL SERVICE CAMPAIGN 22TC01 Over\-the\-Air \(OTA\) pilot program. This pilot program would enable you to complete Special Service Campaign 22TC01 for DCM \(Data Communication Module\) Reprogramming for Safety Connect, which includes your vehicle. With your active telematics account, you are encouraged to complete this campaign using this Over\-the\-Air \(OTA\) update by following these steps: 1\) To complete this update, each Team Member will use the Toyota/Lexus App installed on their phone. 2\) Within a few days of this E\-Mail, we will send a notification to your Toyota/Lexus app to schedule and install the update on your vehicle. 3\) Click on either the notification on your lock screen or the tile in the app to review the update and then continue in the App to approve the update. 4\) The night after you approve the update, the telematics module will perform the update, and you will receive a confirmation notification through the app.

JSON: [/v1/bulletins/10201366](/v1/bulletins/10201366)

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