# Service bulletin T\-SB\-0004\-22 Rev

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: 10227906
- Published by NHTSA: 2022\-12\-19
- Manufacturer's number: T\-SB\-0004\-22 Rev
- Manufacturer's date: 2022\-11\-07
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

## NHTSA's summary

TSB: Some 2016 ? 2023 model year Tacoma vehicles may exhibit what customers describe as a 1 ? 3\-second whistle noise from the HVAC system when the air conditioning system is ON. The whistle noise may occur as the compressor cycles on and off and is more prevalent with increased engine RPM during hot ambient temperatures. Follow the Repair Procedure in this bulletin to address this condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227906-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227906-9999.pdf)

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

## Components

Glass, wipers and mirrors, Heating and air conditioning

## Vehicles listed

- 2016 to 2023 TOYOTA TACOMA

## Other bulletins for the same vehicles and component

- [TSB005823](/bulletins/10244115.md), 2023-10-16, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS. TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. Follow the procedures outlined in this service bulletin to aid in locating, inspecting, and repairing refrigerant leaks
- [TSB005222](/bulletins/10220173.md), 2022-09-15, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. TSB: Some 2021 ? 2022 model year Tacoma vehicles may exhibit a condition in which the air conditioning system has poor cooling performance sometimes accompanied by refrigerant vapor visible from under the vehicle. This condition is caused by the pressure relief valve opening and purging refrigerant at a pressure below specification. Follow the Repair Procedure in this bulletin to address this condition
- [T\-SB\-0004\-22](/bulletins/10207964.md), 2022-02-14, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. TSB: Some 2016 ? 2022 model year Tacoma vehicles may exhibit what customers describe as a 1 ? 3\-second whistle noise from the HVAC system when the air conditioning system is ON. The whistle noise may occur as the compressor cycles ON/OFF and is more prevalent with increased engine RPM during hot ambient temperatures. Follow the Repair Procedure in this bulletin to address this condition.
- [T\-TT\-0663\-21](/bulletins/10202452.md), 2021-10-25, Service bulletin: LANE DEPARTURE; VISIBILITY. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
- [T\-SB\-0080\-19 Rev](/bulletins/10201400.md), 2021-09-13, Service bulletin: EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: Some 2006 ? 2022 model year Toyota vehicles in particular geographic areas may exhibit a condition where the HVAC evaporator drain hose has become obstructed with an insect nest. An insect repellent drain hose tip \(ARINIX® Tip\) is available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper handling and installation of this optional service part.
- [T\-SB\-0014\-21](/bulletins/10190451.md), 2021-04-19, Service bulletin: EQUIPMENT:APPLIANCE:AIR CONDITIONER; SEATS:MID/REAR ASSEMBLY:SEAT HEATER/COOLER. TSB: Some 2021 model year Tacoma vehicles equipped with dual\-zone automatic climate control and without the seat heater option may have Diagnostic Trouble Codes \(DTCs\) B14C0 and B14C1 \(Right/Left Front Seat Heater Circuit\) stored in the air conditioning amplifier. The air conditioning amplifier logic has been modified to address this condition. Follow the Repair Procedure in this bulletin to address this condition.
- [T\-SB\-0063\-18 Obs](/bulletins/10181776.md), 2020-10-26, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: OBSOLETE NOTICE September 22, 2020: This bulletin is now obsolete. Please see T\-SB\-0093\-20.
- [T\-SB\-0093\-20](/bulletins/10181775.md), 2020-10-26, Service bulletin: EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: Some 2016 ? 2020 model year Tacoma vehicles may exhibit a condition where the air conditioning system shuts down and stops blowing cool air during periods of extended engine idle with ambient temperatures greater than 100°F. Follow the Repair Procedure in the bulletin to address this condition.
- [T\-SB\-0083\-20](/bulletins/10179743.md), 2020-09-14, Service bulletin: STRUCTURE:FRAME AND MEMBERS; VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT. TSB: Some 2020 model year Tacoma double cab vehicles equipped with a Toyota genuine roof rack may exhibit a condition in which the cross bar interferes with the roof antenna. Follow the Repair Procedure in this bulletin to address this condition.
- [T\-TT\-0537\-19\_Rev](/bulletins/10174896.md), 2020-05-11, Service bulletin: VISIBILITY; LANE DEPARTURE. TT: The blind spot monitor \(BSM\) sensor angle inspection is used to confirm that the BSM sensor is within the specified angle before performing axis beam adjustment. When used in conjunction with the repair manual, these BSM tips leverage SSTs and readily available tools to support sensor angle confirmation in varying shop environments.

JSON: [/v1/bulletins/10227906](/v1/bulletins/10227906)

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