# Over\-the\-air update 662.30

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: 11036502
- Published by NHTSA: 2026\-08\-31
- Manufacturer's number: 662.30
- Manufacturer's date: 2026\-07\-13
- Campaign id or software version: 662.30
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: EBCM, TPIM, BCM, SRR, LRR, ACP, AOS, AMP, RDCM, PFCM, VICM, VCU: EBCM \(Electronic Brake Control Module\), BCM \(Body Control Module\), TPIM \(Traction Power Inverter Module\), SRR \(Short Range Radar\), LRR \(Long Range Radar\), ACP3\_MCU \(ADAS Compute Platform 3 \- Microprocessor Control Unit\), ACP3\_SOC \(ADAS Compute Platform 3 \- System On A Chip\), AOS \(Automatic Occupant Sensing Module\), AMP \(Amplifier\), RDCM \(Rear Driver Control Module\), PFCM \(Power Front Closure Module\), VICM \(Vehicle Integration Control Module\), VCU \(Virtual Cockpit Unit\)

## NHTSA's summary

• Improvements to system responsiveness • Improvements to camera image clarity • Fixes to prevent blank screens and audio drop\-outs • Improvements to vehicle software update installation • Additional protection for battery health and to help prevent battery drain • Improved charging messaging in the driver display • Improved vehicle diagnostics • Improved vehicle performance when driving in Reverse on slippery surfaces • Better One\-Pedal Driving performance • Additional protection for battery health and prevention for battery drain • Improved accuracy for driver display message • Updates to allow drive mode selection from the center display

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036502-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036502-9999.pdf)

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

## Vehicles listed

- 2026 GMC HUMMER EV PICKUP
- 2026 GMC HUMMER EV SUV

JSON: [/v1/bulletins/11036502](/v1/bulletins/11036502)

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