# Service bulletin F0A\_LSC\_Region L

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: 10111343
- Published by NHTSA: 2017\-08\-14
- Manufacturer's number: F0A\_LSC\_Region L
- Manufacturer's date: 2015\-01\-08
- NHTSA component: FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM

## NHTSA's summary

Region Letter: In certain 2012 \- 2014 Model Year Toyota Tundra and Sequoia vehicles equipped with a 5.7 Liter gasoline or 5.7 Liter\-Flex Fuel engines, the Engine Control Module \(ECM\) may set a Diagnostic Trouble Code \(DTC\) if debris/ice becomes lodged in the air switching valve. If this occurs, the Malfunction Indicator \(Check Engine\) Light could illuminate and the vehicle could enter a "Fail\-Safe" Mode \(also known as "Limp\-Home" Mode\). If this occurs the vehicle's power and speed will be reduced, which could inconvenience you and require immediate repair.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10111343-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10111343-0001.pdf)

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

## Components

Engine, Fuel system, Cooling system

## Vehicles listed

- 2012 to 2014 TOYOTA SEQUOIA
- 2012 to 2014 TOYOTA TUNDRA

## Other bulletins for the same vehicles and component

- [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.
- [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\-TT\-0051\-10](/bulletins/10132137.md), 2018-04-02, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. If a customer states there is an unpleasant odor in the vehicle from the HVAC system, there are various factors that may be involved.
- [T\-SB\-0152\-13](/bulletins/10132087.md), 2018-04-02, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. Some vehicles may exhibit a condition where there is a lack of cooling from the A/C system. An A/C Line Retainer \(Piping Clamp\) may have become unlatched and caused a refrigerant leak. Follow the procedure in this bulletin to address this condition.
- [F0A\_LSC\_Dealer L](/bulletins/10111256.md), 2017-08-14, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. Dealer Letter: In certain 2012 ? 2014 Model Year Toyota Tundra and Sequoia vehicles equipped with a 5.7 Liter gasoline or 5.7 Liter\-Flex Fuel engines, the Engine Control Module \(ECM\) may set a Diagnostic Trouble Code \(DTC\) if debris/ice becomes lodged in the air switching valve. If this occurs, the Malfunction Indicator \(Check Engine\) Light could illuminate and the vehicle could enter a "Fail\-Safe" Mode \(also known as "Limp\-Home" Mode\). If this occurs the vehicle's power and speed will be reduced, which could inconvenience you and require immediate repair.

JSON: [/v1/bulletins/10111343](/v1/bulletins/10111343)

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