# Service bulletin 26\-008

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: 11034097
- Published by NHTSA: 2026\-06\-26
- Manufacturer's number: 26\-008
- Manufacturer's date: 2026\-07\-26
- Campaign id or software version: 26\-008
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

This bulletin describes the procedure to install the Compressor Power Relay Upgrade on affected Lineage units. The upgrade routes the A/C compressor positive power feed through a dedicated 120\-amp relay, removing the compressor load from the control board. The upgrade is supplied as SDG kit 5000041 \(GDRV PN 710676\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034097-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034097-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2026 GRAND DESIGN LINEAGE

JSON: [/v1/bulletins/11034097](/v1/bulletins/11034097)

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