# Service bulletin T\-SB\-0074\-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: 10179602
- Published by NHTSA: 2020\-09\-14
- Manufacturer's number: T\-SB\-0074\-20
- Manufacturer's date: 2020\-08\-05
- NHTSA component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10179602-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10179602-9999.pdf)

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

## Components

Electrical system, Engine, 12\-volt battery, Cooling fan, Cooling system

## Trouble codes named

P0A7F, P0A80, P1A80, P1AC0

## Vehicles listed

- 2013 to 2020 TOYOTA AVALON HYBRID
- 2007 to 2020 TOYOTA CAMRY HYBRID
- 2020 TOYOTA COROLLA HYBRID
- 2006 to 2019 TOYOTA HIGHLANDER HYBRID
- 2016 to 2020 TOYOTA MIRAI
- 2003 to 2020 TOYOTA PRIUS
- 2012 to 2020 TOYOTA PRIUS C
- 2011 TOYOTA PRIUS V
- 2012 to 2017 TOYOTA PRIUS V
- 2018 TOYOTA PRIUS V
- 2018 TOYOTA RAV4
- 2017 to 2020 TOYOTA RAV4 HYBRID
- 2016 TOYOTA redundant RAV4 HV

## Recalls for the same vehicles and component

- [23V734000](/recalls/nhtsa/23V734000.md), 2023-11-01: ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## 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\-TT\-0687\-22](/bulletins/10210373.md), 2022-04-18, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: When customers have a concern about a discharged battery, no start, or general battery concern, the DCA\-8000 is the only appropriate tool to use for diagnosis
- [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
- [Dealer Daily Mes](/bulletins/10190472.md), 2021-04-19, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. DD: On 2/25/2021, NHTSA opened an investigation into certain RAV4 vehicles related to the 12V battery.
- [Dealer Daily Mes](/bulletins/10190471.md), 2021-04-19, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. DD: On 2/25/2021, NHTSA opened an investigation into certain RAV4 vehicles related to the 12V battery.
- [T\-SB\-0095\-20 Rev](/bulletins/10187269.md), 2021-02-16, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: Some 2020 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code \(DTC\) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Toyota App does not accept the activation code. ?Toyota App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Toyota App shows an error 42 when trying to execute a command. ?Unable to remote start the vehicle with the key fob \(if equipped\). ?Unable to subscribe to remote services. ?Unable to activate Wi\-Fi. ?Destination Assist is inoperative Some 2020 ? 2021 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles and some 2021 model year Avalon, Avalon Hybrid, Corolla, Corolla Hybrid, Sienna Hybrid, and Venza Hybrid vehicles may exhibit one or more of the following conditions: ?DTC B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Toyota App is inoperative. ?Unable to subscribe to remote services. ?Unable to activate Wi\-Fi. ?Depleted 12V vehicle battery when in IG\-OFF. Some 2020 ? 2021 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles and some 2021 model year Avalon, Avalon Hybrid, Corolla, Corolla Hybrid, Sienna Hybrid, and Venza Hybrid vehicles may exhibit the following condition: ?Depleted 12V vehicle battery when in IG\-OFF. A DCM reset and firmware update is now available to address these conditions. Follow the DCM Reset and Firmware Update Procedure in this bulletin to update the firmware.
- [T\-SB\-0095\-20 Rev](/bulletins/10187239.md), 2021-02-16, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: Some 2020 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code \(DTC\) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Toyota App does not accept the activation code. ?Toyota App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Toyota App shows an error 42 when trying to execute a command. ?Unable to remote start the vehicle with the key fob \(if equipped\). ?Unable to subscribe to remote services. ?Unable to activate Wi\-Fi. ?Destination Assist is inoperative. Some 2020 ? 2021 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles and some 2021 model year Avalon, Avalon Hybrid, Corolla, Corolla Hybrid, Sienna Hybrid, and Venza Hybrid vehicles may exhibit one or more of the following conditions: ?DTC B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Toyota App is inoperative. ?Unable to subscribe to remote services. ?Unable to activate Wi\-Fi. ?Depleted 12V vehicle battery when in IG\-OFF. A DCM reset and firmware update is now available to address these conditions. Follow the DCM Reset and Firmware Update Procedure in this bulletin to update the firmware.
- [T\-TT\-0628\-20](/bulletins/10183281.md), 2020-11-30, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TT: HVAC drain tube is found to be blocked/clogged.
- [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.

JSON: [/v1/bulletins/10179602](/v1/bulletins/10179602)

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