# Warranty extension 26\-01\-049G DCS

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: Warranty extension
- NHTSA id: 11033843
- Published by NHTSA: 2026\-06\-16
- Manufacturer's number: 26\-01\-049G DCS
- Manufacturer's date: 2026\-06\-03
- Campaign id or software version: L09G
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Certain G80 \(RG3\) and G90 \(RS4\) vehicles equipped with the 2.5T‑GDI Theta III or 3.5T‑GDI Lambda III engine may experience reduced air‑conditioning performance due to a refrigerant leak originating at the Thermostatic Expansion Valve \(TXV\). This condition may be caused by improper installation of the liquid and suction pipe O‑rings at the TXV connection point. Technical Service Bulletin \(TSB\) 26\-01\-049G provides instructions to replace the TXV O‑rings at the liquid and suction pipe connections to correct the condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033843-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033843-9999.pdf)

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

## Vehicles listed

- 2026 GENESIS G80
- 2026 GENESIS G90

JSON: [/v1/bulletins/11033843](/v1/bulletins/11033843)

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