The contact owns a 2024 GMC Sierra 2500. The contact stated that the vehicle would not not immediately start and had also experienced electrical malfunctions which caused multiple unknown warning lights to display and flash including the seat restraint warning and the ABS and Air Bag warnings. The vehicle was taken to the local dealer who diagnosed that the two batteries located under the hood wer…
2024 GMC Sierra HD electrical problems
severe 28 complaints filed with NHTSA · avg repair $850
Complaints
28
Recalls
0
Crashes
1
Avg fix
$850
What owners are reporting 5 most recent
The contact owns a 2024 GMC Sierra 2500. The contact stated while towing a trailer and driving down a hill at approximately 40 MPH, the integrated trailer braking system error message was displayed, and the trailer braking system failed to activate. The vehicle was later taken to the local dealer who was unable to replicate the failure and failure was found. The dealer later informed the contact t…
This vehicle exhibits the same failure described in NHTSA Recall N232426400 — spontaneous unlatching after rain due to water intrusion into the exterior tailgate release switch. I’m requesting a goodwill replacement under GM bulletin # N232426400 as the failure mechanism and part are identical. It has caused brake failure and nearly killed me because of battery drain while driving. All American Ch…
When I connect my 2024 GMC Sierra 2500HD to my camping trailer that has a solar panel and solar charge controller, it causes the factory-installed brake controller inside the truck to malfunction. The trailer brakes connect and disconnect 4 times a minute sending alerts to my dashboard. This is dangerous. My trailer weighs up to 14,000 pounds and would have to rely solely on the truck brakes to…
LED instrument cluster goes blank. No speedometer, no fuel gauge, oil gauge, nothing.
Common questions
How serious is the electrical problem on the 2024 GMC Sierra HD?
It's a meaningful issue. 28 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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