Over-the-air update notice 662.20

Manufacturer communication, from NHTSA Manufacturer Communications

Published by NHTSA: Aug 31, 2026
Manufacturer: GMC
NHTSA ID: 11036504
NHTSA category: Over The Air
Applies to, as stated by NHTSA: GMC HUMMER EV PICKUP 2025; GMC HUMMER EV SUV 2025
Component, as stated by NHTSA: UNKNOWN OR OTHER

Text of the manufacturer communication

• Improvements to active cabin ventilation • Additional protection for the health of your battery • Updates to help prevent excessive battery drain and overheating • Improvements to the software update system

Manufacturer document number: 662.20
Date of the communication: 2026-07-08
Manufacturer campaign or software version: 662.20
Manufacturer component system: RDCM, CGM, EBCM, TPIM, HDLM, PTM, VLM / RDCM (Rear Driver Control Module), CGM-GTW (Communication Gateway Module), EBCM (Electronic Brake Control Module), TPIM (Traction Power Inverter Module), HDLM (High Definition Localization Module), PTM (Power Tailgate Module), VLM (Vehicle Leveling Module)

View original source on NHTSA.gov

NHTSA reuses some ID numbers across record types. If its page lists more than one record, this one is the manufacturer communication dated Aug 31, 2026.

For the 2024 Tesla Model X

Plaid

Ignored

Relevance of 2% is under one half, so the notice is ignored whatever the other figures say.

Vehicle relevance: 2%
Attention: 8%
Interrupt probability: 7%

Importance to this owner: 0.0 of 4, none
Vehicle area the notice is about: None

This manufacturer communication does not appear to warrant attention for this vehicle.

Decided by jev-1.13.0 in 148 ms from 1,683 input tokens. Jev returns these figures and nothing else. It gives no reasons, and none are written for it here. The figures describe how relevant the notice is, not the condition of any vehicle.

Checked by code against NHTSA's fields

A plain comparison with the structured fields NHTSA filled in. Separate from Jev's decision.

NoNHTSA names this make
NoNHTSA names this model
n/aNHTSA lists model year 2024 for this model

The same notice, every vehicle

Relevance	Attention	Interrupt	State
2%	8%	7%	Ignored
2%	6%	6%	Ignored
2%	10%	9%	Ignored
2%	7%	7%	Ignored
2%	9%	8%	Ignored
2%	8%	8%	Ignored
2%	10%	9%	Ignored
1%	4%	5%	Ignored
1%	4%	5%	Ignored
1%	5%	5%	Ignored
1%	4%	5%	Ignored
1%	4%	5%	Ignored
1%	4%	4%	Ignored
1%	4%	5%	Ignored
1%	3%	5%	Ignored
1%	4%	5%	Ignored

Select a vehicle to see its attention and interrupt figures above.