The contact owns a 2014 GMC Sierra. The contact stated that while making a right turn into the driveway, the steering wheel had become stiff. No warning light had illuminated. The vehicle was no longer being driven since the steering wheel was too stiff and required excessive force causing control to be lost while driving. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 105,000.
2014 GMC Sierra transmission problems
10 complaints (10% of all complaints for this car). Typical mileage when it fails: 2,000.
- owner complaints
- 10
- of this car's complaints
- 10%
- typical mileage
- 2,000
- crashes
- 0
- recalls
- 2
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
GMC Sierra transmission problems in other years
Related recalls
Power train: transfer case (4-wheel drive)
- What is wrong
- General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra vehicles, and model year 2015 GMC Yukon and Chevrolet Suburban and Tahoe vehicles. In the affected vehicles, an electrical signal short may cause the transfer case to shift to neutral without the driver's input.
- Risk
- If the transfer case switches to neutral while the vehicle is parked and the parking brake is not in use, the vehicle may roll away increasing the risk of injury to bystanders. If the transfer case switches to neutral while the vehicle is being driven, the vehicle would lose drive power, increasing the risk of a crash.
- Remedy
- GM will notify owners, and dealers will re-program the software in the transfer case control module, free of charge. The recall began in early August 2014. Owners may contact General Motors customer service at 1‑800‑222‑1020 (Chevrolet), or 1‑800‑462‑8782 (GMC). GM's number for this recall is 14192.
Recall number 14V374000 · Recall details
Power train: automatic transmission: cooling unit and lines
- What is wrong
- General Motors LLC (GM ) is recalling certain model year 2014 Chevrolet Silverado Light Duty Regular Cab, Double Cab, and Crew Cab 1500 series and model year 2015 Suburban and Tahoe; GMC model year 2014 Sierra Regular Cab, Double Cab, and Crew Cab 1500 Series and model year 2015 Yukon and Yukon XL vehicles equipped with a 6-Speed Automatic Transmission (feature code MYC). The subject vehicles may have a transmission oil cooler line that is not securely seated in the fitting.
- Risk
- If the line is not securely seated and transmission oil leaks from the fitting, the oil could contact a hot surface and cause a vehicle fire.
- Remedy
- GM will notify owners, and dealers will inspect the transmission oil cooler line connection and repair the vehicles, as needed, free of charge. The recall began on May 19, 2014. Owners may contact Chevrolet at 1‑866‑694‑6546 or GMC owners may contact GMC at 1‑866‑996‑9463. GM's number for this recall is 14121.
Recall number 14V152000 · Recall details
What 2014 GMC Sierra owners say
Most recent owner complaints, unedited.
The truck was averaging about 20 mpg but shifting erratically like it couldn't decide what gear to be in. After using the 4wd the first time the mpg dropped off to about 17 and has been declining steadily currently I get 14 to 15 mpg and drive 150 miles per day mostly highway. I have taken it back to the dealer twice they said the computer couldn't get used to my driving style and reprogrammed the computer. When I took it back about the mileage a guy came out and said he could tell if something was stuck and switched the 4wd a few time and said it was fine. My mpg is getting worse and it slams in and out of gear 2-3 times in a matter of seconds while sustaining a steady highway speed on a flat surface.
My vehicle started with a vibration on or around 12,000 miles. The vibration slowly increased as time went on. I made appointment with the dealership where the vehicle was purchased.(capitaland motors) at this time the vibration was strong enough to vibrate the back window. It would start at 30mph and get worse at 45mph. The mechanic checked balance and road force the tires. But told me that the vibration was normal and he could fix my back window. I called gmc and filed a complaint. They told me to take it to another dealership. I did on 11/25/14. This time I took it to goldstein buick-gmc. They could feel the vibration in the steering wheel and seat. They check tires again. They felt it was the tires and wanted me to buy new ones. Told me the tires were not under warranty. That day I called goodyear and found out my tires were under warranty, they would be prorated. Goodyear check my tires and they are fine. At this time no one can find the problem and I feel it has become a safety issue. The vibration is really strong and getting worse and they have no answer.
Driving down the road aprox 45- 50 MPH transmission kicked into neutral causing vehicle to slow down suddenly ,almost got rear ended due to sudden slow down . No where to pull over , after letting off the gas kicked into gear and got it home.
I have had my truck back the dealership 8 times for the same problem a vibration that you can feel in the seat steering wheel and gas pedal, they have had the factory engineers out three time and looked and worked on it, first time the engineer did a couple of things and said that it was up to factory specs and that was all he could do, I drove it home and before I was a block away I could tell that they did not fix it, when I got home I called the dealer back and told him so he called gm and the next week they sent out the same guy and this time he worked on 5 or 6 other things that he did not work on the first time after telling me they did all they could do the first time. Right there tells you they are lying if there was nothing they could do why come back and work on it again! But after he got done it was just like it was, I will try to list some of the stuff that they said they did, 1) rotated the tires 2) re-torque the wheels 3) balanced the tires 4) balanced the drive shaft 5) shimmied the rear end 6) checked the rear shocks 7) took off dealer installed mud flaps! 8) checked the exhaust system, I know but they did 9) road forced tested the tires twice and replaced two the second time and re-balanced the tires. And I'm sure I have not listed all they have tried, and still I have the same problem, third time the engineer came out he had the regional manager with him and this time they drove my truck and 2 others they had on the lot and said that they are similar to mine and they was not going to do any more to my truck that they had done all they could or would do but if I had any other problems to bring it back.
2014 gmc sierra. Consumer writes in regards to vehicle electrical panel froze while driving. *smd also, the power steering locked up, the headlights did not work properly and the alarm sometimes sounded after the was removed from the ignition. Also, the engine light illuminated. The vehicle was taken to the dealer twice. However, the problem was still not resolved. There was a hesitation/lurch coming from the transmission, and an issue with the tire pressure monitoring system. The instrument panel malfunctioned on the way back from the dealer. The check engine light, illuminated sporadically. Updated 07/10/14 the consumer stated there was a steering issue, as well. The dealer was unable to replicate the problems. Updated 08/06/14
Vehicle was purchased new from a dealership. The vehicle is modified and sold commercially under the rmt (rocky mountain truck works) package. The package includes modified suspension and lighting. When accelerating, the transmission fails to shift into a passing gear causing the RPM(s) to exceed 6000 at which point the rev limiter shuts down power to the vehicle until the RPM(s) are back in a safe operating limit. The first time this happened, I was attempting to pass a vehicle on a secondary two lane highway. When I was in the passing lane, I accelerated to overtake the vehicle but the RPM limiter shut down power midway through the passing. With oncoming traffic, and loss of power, it made for a very serious situation. I have contacted the dealership and they have worked on the vehicle multiple times to try and correct without success. They have confirmed that this happening with all the rmt modified vehicles that they have test driven. These vehicles are commercially marketed and it is only a matter of time before someone is not as lucky as I was.
Brake and then accelerate losses power transmission slips. When trying to merge to freeway I brake and then try to accelerate it looses power transmission slips.
Vehicle hesitates and stalls upon acceleration. According to gm document id number [xxx] this is a normal condition and they have programmed the vehicle to do this. If going into traffic and trying to accelerate, the built in delay can cause close calls at best and worst case an accident. This coupled with the transmission issues mentioned in document id number 3575856 creates the perfect storm for injury and / or death. Gm refuses to address the issue other than to say they feel it is not a problem. This covers virtually all gm vehicles since 2007 with the 6 speed transmission. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
2014 gmc sierra 1500 rolls backwards when parked on an incline and the transmission is in park.
Questions about the 2014 GMC Sierra transmission
Does the 2014 GMC Sierra have transmission problems?
Owners have filed 10 complaints about the transmission of the 2014 GMC Sierra, 10% of all its complaints.
At what mileage do 2014 GMC Sierra transmission problems start?
The typical (median) mileage in owner complaints is 2,000 miles.
Was there a recall on the 2014 GMC Sierra transmission?
Yes, 2 recalls: 14V374000, 14V152000. Check your VIN to see if your car still needs the free repair.
What year does the GMC Sierra have bad transmission?
The GMC Sierra model years with the most transmission complaints are 1999 (37 complaints), 2003 (29 complaints) and 1997 (28 complaints).
Other 2014 GMC Sierra problems
Lights 63Electrical 9Body 8Engine 8Steering 7Airbags 5Suspension 5Visibility 5Seats 2Acceleration 1Driver assistance 1Fuel system 1Locks 1Seat belts 1Tires 1
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