2024 Gmc Hummer Ev Pickup problems, complaints & recalls
Most-reported problem areas: Forward Collision Avoidance: Automatic Emergency Braking (1)
Safety recalls (1)
Electrical System:propulsion System 2024-05-09 · campaign 24V320000 · 10 vehicles
Defect: General Motors, LLC (GM) is recalling certain 2024 Cadillac Lyriq, Chevrolet Blazer EV, Chevrolet Silverado EV, GMC Hummer EV SUV, and GMC Sierra EV vehicles. The electric motors in the rear drive units may have insufficiently insulated wires that can contact each other, resulting in a loss of drive power.
Risk: A loss of drive power increases the risk of a crash.
Fix: Dealers will replace the rear drive unit, free of charge. Owner notification letters were mailed May 16, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; Hummer customer service at 1-800-732-5493; or GMC customer service at 1-800-462-8782. GM's number for this recall is N242447080.
Service bulletins (571)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-10-26 · N262565450 · Service Campaign
customer satisfaction program. certain vehicles listed above may have a condition in which remanufactured high voltage battery packs were built using modules that were ineligible for reuse and require a second replacement. dealers will replace the high voltage battery.
Unknown Or Other 2026-10-24 · PIP6140 · Service Bulletin/Repair Instructions
vehicles may display a mil or “service high voltage” message, with dtc p061b stored as current or history. the condition may be caused by a software anomaly and may clear after a vehicle sleep cycle. install the lasted program.
Unknown Or Other 2026-10-17 · PIC6602Y · Service Bulletin/Repair Instructions
this preliminary information communicates to dealers steps to follow to obtain an iok radio.
Unknown Or Other 2026-10-07 · PIT6557 · Service Bulletin/Repair Instructions
this preliminary information communicates how to resolve a issue where a vehicle is not receiving ota updates
Unknown Or Other 2026-10-05 · PIT6477D · Service Bulletin/Repair Instructions
this preliminary pi was created to advise techniians in the field that they will not be able to perform a gds automated bleed with the scan tool dues to a issue with the software in the scan tool
Electrical System 2026-10-05 · N252514001 · Service Campaign
service update. certain vehicles listed above may enable the new king crab feature through ota programming or programming at the dealer. dealers will perform a comprehensive software update. owners who have accepted applicable terms and conditions will have the opportunity to accept these software
Showing the 6 most recent of 571 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-11 · Forward Collision Avoidance: Automatic Emergency Braking“automatic emergency braking engages when no object is present to hit. this has happened twice at lower speeds (roughly 20-30 mph). parked cars present on side of road. dangerous to driver and passengers as well as anyone behind the vehicle. dealer hasn’t yet inspected the vehicle but that is pending scheduling. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.