# Service bulletin T\-TT\-0628\-20

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: 10183281
- Published by NHTSA: 2020\-11\-30
- Manufacturer's number: T\-TT\-0628\-20
- Manufacturer's date: 2020\-10\-21
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

## NHTSA's summary

TT: HVAC drain tube is found to be blocked/clogged.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183281-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183281-9999.pdf)

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

## Components

Engine, Cooling system

## Vehicles listed

- 2008 to 2021 TOYOTA 4RUNNER
- 2017 to 2020 TOYOTA 86
- 2008 to 2021 TOYOTA AVALON
- 2017 TOYOTA C\-HR
- 2018 to 2021 TOYOTA C\-HR
- 2008 to 2021 TOYOTA CAMRY
- 2008 to 2021 TOYOTA COROLLA
- 2019 to 2021 TOYOTA COROLLA HATCHBACK
- 2017 to 2018 TOYOTA COROLLA IM
- 2007 to 2014 TOYOTA FJ CRUISER
- 2008 to 2021 TOYOTA HIGHLANDER
- 2008 to 2011 TOYOTA LAND CRUISER
- 2013 to 2021 TOYOTA LAND CRUISER
- 2008 to 2014 TOYOTA MATRIX
- 2016 to 2020 TOYOTA MIRAI
- 2008 to 2021 TOYOTA PRIUS
- 2012 to 2020 TOYOTA PRIUS C
- 2021 TOYOTA PRIUS C
- 2017 to 2021 TOYOTA PRIUS PRIME
- 2011 TOYOTA PRIUS V
- 2012 to 2017 TOYOTA PRIUS V
- 2018 TOYOTA PRIUS V
- 2008 to 2021 TOYOTA RAV4
- 2017 TOYOTA RAV4 HYBRID
- 2021 TOYOTA RAV4 PRIME
- 2008 to 2021 TOYOTA SEQUOIA
- 2008 to 2020 TOYOTA SIENNA
- 2020 to 2021 TOYOTA SUPRA
- 2008 to 2021 TOYOTA TACOMA
- 2008 to 2021 TOYOTA TUNDRA
- 2009 to 2016 TOYOTA VENZA
- 2021 TOYOTA VENZA HYBRID
- 2008 to 2020 TOYOTA YARIS
- 2017 to 2018 TOYOTA YARIS IA
- 2016 TOYOTA redundant RAV4 HV

## Other bulletins for the same vehicles and component

- [TSB010421](/bulletins/10252251.md), 2024-04-01, Service bulletin: SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:COOLING SYSTEM; LANE DEPARTURE. TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A\-FKS, A25A\-FXS, M20A\-FKS, or M20A\-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. ?An ?Oil Pressure Low? warning message on the Multi\-information Display \(MID\). ?A MIL ON condition with Diagnostic Trouble Codes \(DTCs\) P05202A \(Engine Oil Pressure Sensor/Switch ?A? Signal Stuck in Range\) and/or P052477 \(Engine Oil Pressure Too Low \[Severe\]\) present. Moisture from blow\-by gases condenses and accumulates in the engine oil during short trips in extreme cold weather. When the moisture in the oil freezes, the oil pressure may drop, and the aforementioned warning indicators may display. Follow the procedures in this bulletin to address these conditions.
- [T\-SB\-0017\-23](/bulletins/10236198.md), 2023-05-15, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; UNKNOWN OR OTHER. TSB: Some 2018 ? 2020 model year Camry Hybrid and 2019 ? 2020 model year Avalon Hybrid vehicles equipped with a A25A\-FXS engine may exhibit a MIL ON condition with Diagnostic Trouble Code \(DTC\) P05A074 \(Active Grill Air Shutter ?A? Actuator Slipping\). To address these concerns an updated radiator shutter sub\-assembly was developed
- [T\-SB\-0007\-22](/bulletins/10209001.md), 2022-03-14, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TSB: Some 2020 ? 2021 model year TMMC and TMMK built RAV4 and RAV4 Hybrid vehicles may exhibit damp carpeting in the front floor area. This may be due a condition in which the inside of the HVAC drain cooler hose is obstructed with plastic. Follow the Repair Procedure in this bulletin to address this condition
- [T\-SB\-0103\-20](/bulletins/10183188.md), 2020-11-30, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP; EQUIPMENT. TSB: This Service Bulletin provides updated non\-electric water pump leak inspection and diagnostic tips for some 2008 ? 2021 model year Toyota vehicles.
- [T\-TT\-0621\-20](/bulletins/10179791.md), 2020-09-14, Service bulletin: EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TT: Any HVAC repair requiring reassembly of the quick connect fitting between the suction hose sub\-assembly and the suction pipe sub\-assembly located at the top right of the engine compartment.
- [T\-SB\-0074\-20](/bulletins/10179698.md), 2020-09-14, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; EQUIPMENT; ELECTRICAL SYSTEM. TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid Vehicle; 2016 ? 2020 model year Mirai and RAV4 Hybrid Vehicle; and 2020 model year Corolla Hybrid Vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes \(DTCs\) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. Follow the procedure in this bulletin to address this condition.
- [T\-SB\-0033\-16 Obs](/bulletins/10179608.md), 2020-09-14, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TSB: OBSOLETE NOTICE August 08, 2020: This bulletin is no longer applicable and is now obsolete.
- [T\-SB\-0074\-20](/bulletins/10179602.md), 2020-09-14, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid Vehicle; 2016 ? 2020 model year Mirai and RAV4 Hybrid Vehicle; and 2020 model year Corolla Hybrid Vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes \(DTCs\) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. Follow the procedure in this bulletin to address this condition.
- [T\-TT\-0468\-17 Rev](/bulletins/10178524.md), 2020-08-17, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. TT: HVAC drain tube is found to be blocked/clogged.
- [T\-SB\-0135\-19](/bulletins/10166037.md), 2019-10-15, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. TSB: Some 2016 ? 2019 model year Prius and 2017 ? 2019 model year Prius Prime vehicles may exhibit one or more of the following conditions due to a coolant leakage at the front exhaust pipe heat exchanger: ? Low coolant level ? MIL ON accompanied by Diagnostic Trouble Code \(DTC\) P148F00 ? Poor heater performance The front exhaust pipe with heat exchanger assembly has been updated. Follow the Repair Procedure in this bulletin to address this condition.

JSON: [/v1/bulletins/10183281](/v1/bulletins/10183281)

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