TSB: TOYOTA 4RUNNER, 86, AVALON, C-HR, CAMRY, COROLLA, COROLLA IM, HIGHLANDER, LAND CRUISER, MIRAI, PRIUS, PRIUS C, PRIUS V, RAV4, RAV4 HV, RAV4 HYBRID, SEQUOIA, SIENNA, TACOMA, TUNDRA, VENZA, YARIS (2016–2018)

Bulletin T-TT-0441-17 — April 12, 2017

Bulletin Details

Bulletin IDT-TT-0441-17
ManufacturerTOYOTA
Models4RUNNER, 86, AVALON, C-HR, CAMRY, COROLLA, COROLLA IM, HIGHLANDER, LAND CRUISER, MIRAI, PRIUS, PRIUS C, PRIUS V, RAV4, RAV4 HV, RAV4 HYBRID, SEQUOIA, SIENNA, TACOMA, TUNDRA, VENZA, YARIS
Model Years2016–2018
Date IssuedApril 12, 2017
Date Added to NHTSAJuly 2, 2018
ComponentEQUIPMENT:APPLIANCE:AIR CONDITIONER
Vehicles Affected56 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

TT: During previous air conditioning service, leakage prevention agent (A/C stop leak) may have been added to the A/C system. Adding stop leak products to the A/C system is not a recommended or approved Toyota repair process. During A/C s

Affected Vehicles

MakeModelYearComponent
TOYOTA 4RUNNER 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA 86 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA AVALON 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA C-HR 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA CAMRY 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA COROLLA 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA HIGHLANDER 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA LAND CRUISER 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA MIRAI 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS C 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS V 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA RAV4 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA SEQUOIA 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA SIENNA 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA TACOMA 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA TUNDRA 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA YARIS 2018 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA 4RUNNER 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA 86 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA AVALON 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA C-HR 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA CAMRY 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA COROLLA 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA COROLLA IM 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA HIGHLANDER 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA LAND CRUISER 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA MIRAI 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS C 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS V 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA RAV4 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA RAV4 HYBRID 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA SEQUOIA 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA SIENNA 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA TACOMA 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA TUNDRA 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA YARIS 2017 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA 4RUNNER 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA AVALON 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA CAMRY 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA COROLLA 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA HIGHLANDER 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA LAND CRUISER 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA MIRAI 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS C 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA PRIUS V 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA RAV4 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA RAV4 HV 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA SEQUOIA 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA SIENNA 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA TACOMA 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA TUNDRA 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA VENZA 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
TOYOTA YARIS 2016 357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER

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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 (T-TT-0441-17) 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.