general problems of the 2014 GMC Sierra

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.

The contact owns a 2014 GMC Sierra. The contact stated while his wife was driving at approximately 65 mph the vehicle began to vibrate and made loud grinding noises. The contact said the vehicle began to lose forward momentum. The contact's wife was able to exit the highway, however the vehicle transmission would slip out of gear. The contact stated no warning light was illuminated. The contact stated that the vehicle failure had become constant. The contact's wife had not taken the vehicle to a local dealer or independent mechanic. The vehicle had not been diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was 94,302.

The contact owns a 2014 GMC Sierra. The contact stated that the vehicle would not start. The contact stated he performed a diagnosis on the vehicle. He stated that the engine control module needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were both contacted, and they stated the vehicle was out of warranty. The failure mileage was 74,319.

When driving at highway speed or accelerating the back of the truck will violently vibrate. At time it is almost uncontrollable and becomes very hard to steer. I so I have researched this issue and it seems that there are many complaints about this exact issues with 2014 to 2019 chevy and GMC trucks. I just had the alignment done and brand new tires put on it the truck 6-22-20. Now the truck shakes even more then it did before.

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 gearand got it home.

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.

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.

2014 GMC Sierra. Consumer writes in regards to vehicle electrical panel froze while driving. 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.

2014 GMC Sierra 1500 rolls backwards when parked on an incline and the transmission is in park.

Vehicle hesitates and stalls upon acceleration. According to gm document id number 3685734 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.