Over-the-air update 653.20
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 | 11024660 |
| Published by NHTSA | 2025-10-31 |
| Manufacturer's number | 653.20 |
| Manufacturer's date | 2025-10-20 |
| Campaign id or software version | 653.20 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | ACP, BCM, EBCM, ECP, ELM, EOCM, EPS, FCM, ICCM, LRR, PFCM< PTM, VECM, VKM, VLM, WCM: ACP, BCM, EBCM, ECP, ELM, EOCM, EPS, FCM, ICCM, LRR, PFCM< PTM, VECM, VKM, VLM, WCM |
NHTSA's summary
Software Update for your Model Year 2024 GMC HUMMER EV if your vehicle is equipped: •Improvements to leveling corrections. •Improvements to the performance of One-Pedal Driving. •Fixes to help maintain Electronic Stability Control and One-Pedal Driving availability after a vehicle software update. •Improvements to the power swing gate. •iPhone charging During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
| GMC HUMMER EV PICKUP | 2024 |
|---|---|
| GMC HUMMER EV SUV | 2024 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.