TSB: TOYOTA 4RUNNER, C-HR, HIGHLANDER, HIGHLANDER HYBRID, PRIUS, PRIUS PRIME, RAV4 PRIME, SEQUOIA, TACOMA, TUNDRA (2021–2022)

Bulletin 22TC01 Region Le — February 24, 2022

Bulletin Details

Bulletin ID22TC01 Region Le
ManufacturerTOYOTA
Models4RUNNER, C-HR, HIGHLANDER, HIGHLANDER HYBRID, PRIUS, PRIUS PRIME, RAV4 PRIME, SEQUOIA, TACOMA, TUNDRA
Model Years2021–2022
Date IssuedFebruary 24, 2022
Date Added to NHTSAMarch 14, 2022
ComponentELECTRICAL SYSTEM
Vehicles Affected16 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

RL: 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 d

Affected Vehicles

MakeModelYearComponent
TOYOTA 4RUNNER 2022 110000 ELECTRICAL SYSTEM
TOYOTA HIGHLANDER 2022 110000 ELECTRICAL SYSTEM
TOYOTA HIGHLANDER HYBRID 2022 110000 ELECTRICAL SYSTEM
TOYOTA PRIUS 2022 110000 ELECTRICAL SYSTEM
TOYOTA PRIUS PRIME 2022 110000 ELECTRICAL SYSTEM
TOYOTA SEQUOIA 2022 110000 ELECTRICAL SYSTEM
TOYOTA TACOMA 2022 110000 ELECTRICAL SYSTEM
TOYOTA 4RUNNER 2021 110000 ELECTRICAL SYSTEM
TOYOTA C-HR 2021 110000 ELECTRICAL SYSTEM
TOYOTA HIGHLANDER 2021 110000 ELECTRICAL SYSTEM
TOYOTA HIGHLANDER HYBRID 2021 110000 ELECTRICAL SYSTEM
TOYOTA PRIUS PRIME 2021 110000 ELECTRICAL SYSTEM
TOYOTA RAV4 PRIME 2021 110000 ELECTRICAL SYSTEM
TOYOTA SEQUOIA 2021 110000 ELECTRICAL SYSTEM
TOYOTA TACOMA 2021 110000 ELECTRICAL SYSTEM
TOYOTA TUNDRA 2021 110000 ELECTRICAL SYSTEM

Related TOYOTA Recalls

CampaignModelYearComponentSummary
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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized TOYOTA dealer. Bring this bulletin ID (22TC01 Region Le) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.