# Service bulletin T\-TT\-0798\-26

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: 11029874
- Published by NHTSA: 2026\-03\-07
- Manufacturer's number: T\-TT\-0798\-26
- Manufacturer's date: 2026\-02\-04
- Campaign id or software version: T\-TT\-0798\-26
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Some systems such as remote engine start and remote door lock/unlock may be inoperative if they are not enabled/registered after ECU replacement. Remote engine start and remote door lock/unlock can be enabled/registered with GTS\+.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029874-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029874-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2026 TOYOTA RAV4 HYBRID

## Other bulletins for the same vehicles and component

- [T\-SB\-0050\-26](/bulletins/11037199.md), 2026-09-09, Over\-the\-air update: ELECTRICAL SYSTEM. A head unit software update \(version 8612G42397\) is now available for 2026 model year RAV4 Hybrid, and RAV4 Plug\-in Hybrid vehicles via OTA or USB. Vehicle operators can perform this update directly by accepting the on\-screen notification advising the software update is available, or by locating the software update from the Settings menu and initiating the available update This is a phased rollout, which means that as time progresses, more vehicles will receive the update notification and ability to update the head unit via OTA. This timing will vary by location and may not display for every vehicle in one location at the same day and time.
- [T\-TT\-0803\-26](/bulletins/11033417.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM. Some 26MY RAV4 HV/PHV vehicles with HU \(head unit\) versions 1136 or older may exhibit one or more of theintermittent conditions below: • No sound from JBL audio at start up. • CarPlay audio and CarPlay icon are inoperative. • CarPlay does not automatically launch at vehicle restart. • Bluetooth device does not automatically pair after remote engine start via app or via key fob. • Steering wheel seek switches do not work as expected during Sirius XM radio after transferring favorite stations from 21MM account to 24MM vehicle.
- [T\-TT\-0800\-26](/bulletins/11033416.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM. Some 2026 RAV4 HV vehicles may display a Distance to Empty \(DTE\) that is higher than expected at initial fill\-up. The DTE is computed using the amount of fuel remaining and a learned value that is based on the average fuel consumption.

JSON: [/v1/bulletins/11029874](/v1/bulletins/11029874)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20T-TT-0798-26&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11029874&vehicle=Service%20bulletin%20T-TT-0798-26)