# Service bulletin AOS\-26\-09

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: 11029359
- Published by NHTSA: 2026\-03\-03
- Manufacturer's number: AOS\-26\-09
- Manufacturer's date: 2026\-02\-23
- Campaign id or software version: AOS\-26\-09
- NHTSA component: POWER TRAIN

## NHTSA's summary

This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the test plan: P275300 Transmission Fluid Cooler Circuit/Open fault stored with no relevant Test Plan populated.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029359-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029359-9999.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P2753

## Vehicles listed

- 2023 AUDI Q7
- 2023 AUDI SQ7

## Other bulletins for the same vehicles and component

- [TSB\_2074808\_4](/bulletins/11033475.md), 2026-06-04, Service bulletin: POWER TRAIN. The high\-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content \(energy density\) being reduced. This reduction in the energy content, which is due to factors. Revised header. Added Model years
- [TSB\_2070349\_6](/bulletins/11030999.md), 2026-04-07, Service bulletin: POWER TRAIN. This bulleitn provides informiaotn when there is a loss of coolant; mechanical coolant pump 2.9L, 3.0L V6 TFSI.
- [TSB\_2074808\_3](/bulletins/11027358.md), 2026-01-07, Service bulletin: POWER TRAIN. This bulletin provides additoinal information to assist in determining the energy content of lithium\-ion high\-voltage batteries.
- [TSB\_2070913\_2](/bulletins/11022636.md), 2025-09-04, Service bulletin: POWER TRAIN. This bulletin provides informaiotn when there are noises from steering and/or intermediate steering shaft.
- [TSB\_2074857\_2](/bulletins/11020353.md), 2025-07-08, Service bulletin: POWER TRAIN. This bulletin provides information when there are noises/vibrations in tight bends; Q7 and A8 models.
- [TSB\_2073034\_8](/bulletins/11016527.md), 2025-04-04, Service bulletin: POWER TRAIN. This bulletin provides informaion when there is an air suspension system fault, DTC C118D01, Compressor for level control electicalerror.
- [TSB\-2073034\_7](/bulletins/11015758.md), 2025-03-19, Service bulletin: POWER TRAIN. This bulletin provides informaion when there is an air suspension system fault, DTC C118D01, Compressor for level control electicalerror.
- [A3924742074859\_1](/bulletins/11009937.md), 2024-11-06, Service bulletin: POWER TRAIN. This bulletin provides additional information pertaining to continued noises/vibrations in tight bends \- Q7 and A8 vehicle models.
- [A1924672075348\_1](/bulletins/11009324.md), 2024-10-28, Service bulletin: POWER TRAIN. This bulletin provides information pertaining to the cooling system; radiator fan control P048000/P048100.
- [A3924692074857\_1](/bulletins/11007311.md), 2024-09-06, Service bulletin: POWER TRAIN. This bulletin provides information when there are noises/vibrations in tight bends; Q7 and A8 models.

JSON: [/v1/bulletins/11029359](/v1/bulletins/11029359)

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