# Over\-the\-air update 662.40

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: 11036499
- Published by NHTSA: 2026\-08\-31
- Manufacturer's number: 662.40
- Manufacturer's date: 2026\-07\-22
- Campaign id or software version: 662.40
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: TCP: TCP \(Telematics Connectivity Platform\)

## NHTSA's summary

• Improvements to OnStar through enhancements for charging, Super Cruise, remote start, and collision notification. • Fixes to address connectivity issue

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036499-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036499-9999.pdf)

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

## Vehicles listed

- 2025 GMC HUMMER EV PICKUP
- 2025 GMC HUMMER EV SUV

JSON: [/v1/bulletins/11036499](/v1/bulletins/11036499)

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