2024 GMC Sierra transmission and drivetrain problems
73 of the 370 complaints owners filed with NHTSA about the 2024 GMC Sierra name the transmission and drivetrain (NHTSA’s “Power Train” heading — the transmission, transfer case, driveshafts, axles and differentials — NHTSA files them under one heading). Filed under the same heading: 86 manufacturer bulletins. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.
What owners filed about the transmission and drivetrain
Source: NHTSA complaint database0 of the 73 reports a crash · 1 a fire · 1 injury. Self-reported, unverified.
Filed per year: 2024: 2 · 2025: 35 · 2026: 36
Too few of these complaints carry an odometer reading to say when the problem shows up.
370 complaints in all about the 2024 GMC Sierra, 36 filed in 2026. The whole picture, every system →
Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Power Train” means the same area of the vehicle, not one fault.
Across model years: GMC Sierra transmission and drivetrain problems, every year on file →
In owners’ own words
Source: NHTSA complaint databaseFiled with NHTSA by the people who own these cars, about the transmission and drivetrain. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.
I was driving and noticed a very strong smell of an electrical fire. The truck popped up a High Voltage Battery warning and several warning lights came on. We stopped, restarted the truck and the lights came on again, the smell returned as soon as we started driving. We drove the truck to Cable Dahmer GMC in Kansas City, MO.
First time it happened was on November 28th 2024 around 8pm, turned de engine on, selected the reverse gear and stepped on the gas, the reverse gear was selected but the gear didn't worked at all. I almost hit a car that was passing on the street. I out the gear on drive and got the message "reduced acceleration".
I have experienced several occurrences of unintended acceleration while operating the vehicle at low speed. Two recent examples; 1) the truck accelerated rapidly while I was driving into my garage, and 2) the truck accelerated suddenly when pulling forward out of a parking spot in the morning shortly after starting the vehicle.
The contact owns a 2024 GMC Sierra 1500. The contact stated while driving 74 MPH, the vehicle inadvertently lost motive power, after which the vehicle was unable to accelerate above 25 MPH. The contact was able to pull over to the shoulder of the roadway and turned off the vehicle.
7500 miles and transmission valve body failed. Parts are on back order with no eta
What is on file about the transmission and drivetrain
Source: NHTSA recalls, investigations and manufacturer communications86 manufacturer bulletins filed under this heading
The 0 newest are listed; every one is on the model year’s page. Quote the document number at a service desk — it is a diagnosis the maker has already written down.
Trouble codes named on this system
Codes a bulletin or an owner’s complaint about the 2024 GMC Sierra names on this model year; a code with a record of its own links it.
Other systems with a record on the 2024 GMC Sierra
Source: the same files- engine problems 215 complaints
Common questions
Source: NHTSA complaint database, recalls and manufacturer communicationsAre transmission and drivetrain problems common on the 2024 GMC Sierra?
They are documented: NHTSA holds 73 owner complaints naming the transmission and drivetrain on this model year (20% of everything owners filed about it), and 86 manufacturer bulletins are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.
Is there a recall for the transmission and drivetrain on the 2024 GMC Sierra?
No recall campaign is filed under this heading for this model year (there are 4 filed under other headings). A bulletin is not a recall: it carries no federal duty to repair for free.
When do transmission and drivetrain problems show up on the 2024 GMC Sierra?
Too few of the complaints carry an odometer reading to say. The model year's page shows the mileage curve across every system where it can.
What does NHTSA's "Power Train" heading cover?
The transmission, transfer case, driveshafts, axles and differentials — NHTSA files them under one heading. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.