# Service bulletin T\-TT\-0609\-20\_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: 10176506
- Published by NHTSA: 2020\-06\-22
- Manufacturer's number: T\-TT\-0609\-20\_Rev
- Manufacturer's date: 2020\-05\-20
- NHTSA component: EXTERIOR LIGHTING:HEADLIGHTS

## NHTSA's summary

TT: Some 2019 and 2020 model year Avalon and Avalon HV may exhibit abnormal, partial or 100% inoperative function of either the passenger side, driver side, or both LED1 Headlamp Day Time Running Lights \(DRL\). This may be caused by an internal fault in the headlamp assembly or DRL logic issue.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176506-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176506-9999.pdf)

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

## Components

Lighting, Headlights

## Vehicles listed

- 2019 to 2020 TOYOTA AVALON
- 2019 to 2020 TOYOTA AVALON HYBRID

JSON: [/v1/bulletins/10176506](/v1/bulletins/10176506)

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