# Over\-the\-air update 662.11

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: Over\-the\-air update
- NHTSA id: 11035452
- Published by NHTSA: 2026\-08\-01
- Manufacturer's number: 662.11
- Manufacturer's date: 2026\-07\-23
- Campaign id or software version: 662.11
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: BCM, ARB: BCM \(Body Control Module\), ARB \(Articulated Running Boards\)

## NHTSA's summary

• Additional protection for the health of your battery • Updates to help prevent excessive battery drain and overheating • Improvements to the software update system • Improvements to reliability when extending the running boards on your vehicle

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035452-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035452-9999.pdf)

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

## Vehicles listed

- 2026 CHEVROLET SILVERADO 2500
- 2026 GMC SIERRA 2500

JSON: [/v1/bulletins/11035452](/v1/bulletins/11035452)

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