general problems of the 2015 GMC Sierra 1500 - part 2

60 problems related to engine and engine cooling have been reported for the 2015 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 GMC Sierra 1500 based on all problems reported for the 2015 Sierra 1500.

36 Engine And Engine Cooling problem

Failure Date: 06/17/2021

Truck is equipped with afm and the lifters failed causing a no -power situation. First happens at 57,000 miles then again at 82,000 miles. Not only was this a dangerous situation, but also a very expensive situation. Gm knows these are defective and should have been recalled and repaired on their dime, not mine. Pictures of bill included are only of the first repair. Second repair pictures are available upon request.

37 Engine And Engine Cooling problem

Failure Date: 05/17/2021

Radiator coolant leak, replacement radiator with 11000 miles has begun to leak now. . Fuel injectors had to be replaced at 60000 miles. Blue paint is peeling off in sheets.

38 Engine And Engine Cooling problem

Failure Date: 05/12/2021

Had two lifters collapse and fail. Replaced transmission twice due to torque converter failure.

39 Engine And Engine Cooling problem

Failure Date: 04/01/2021

I have noticed over the last few weeks I am losing radiator fluid. Its slow but noticeable. Engine temperature rises and fan stays on. My 2015 GMC Sierra 1500 only has 50,150 miles on it, and started well under 50,000. It looks like the leak is from upper contact points of radiator and frame. I have come to find out that GMC has put a notice out on this issue and put a recall/repair out on the 2014 GMC Sierra 1500 for the same issue. Its a know defect. ( I will attach copies ) I went to the dealer and was told they would fix the 2014 but have not issued a fix for the 2015. "not enough complaints"? its a very expensive fix for a known manufactured defect but GMC (and chevy trucks) want more complaints. . . . So here is my filing. Kind of a silly game they are playing when they know it should be a recall issue.

40 Engine And Engine Cooling problem

Failure Date: 03/12/2021

While driving down the streets, truck loses all electrical power, loses power steering,radio, gauge cluster power and engine dies. Happened several times today. It immediately all comes back on(so far) but could definitely be a safety concern if the conditions were right.

41 Engine And Engine Cooling problem

Failure Date: 06/10/2020

This occurred 5+ years ago. Coming home one night I had a sudden loss of power with the truck and barely made it home. Was able to limp the truck to the dealership the next day and was told that one side of the engines lifters had failed. Prior to the failure I had noticed a ticking sound coming from the engine that was becoming increasingly more prominent. It was several thousand dollars to repair. Fortunately the failure occurred near home, not on the freeway where I could have been dodging cars while trying to limp the truck to the shoulder. Some online research while the repair was being done revealed that several other owners with the 6. 2l engine had the same problem. When I mentioned it to the dealer the response was that they had no bulletins from gm on the issue and I was stuck with the bill. Got the same response a year or two later when the torque converter on the transmission went out. The reason I am reporting it now is I saw that gm is recalling 6. 2l vehicles with lifter issues but not back to 2015 even though the issue appears to go back farther than that. They claim it's limited to a specific run of engines for the recall. They have been having various lifter problems for many years that have put drivers in danger when they fail but refuse to acknowledge it. As for the repair they made to the engine I've driven another 70 k miles and the ticking has started again. I fear another failure. Please note that the date previously given for the incident is my best guess.

42 Engine And Engine Cooling problem

Failure Date: 02/03/2020

2015 GMC Sierra 1500 with 40k miles has developed a radiator leak. Smell of coolant has been evident for a few years but was unable see the actual leak. Seems to occur often in 2014-2018 Sierra 1500. See service bulletin pi1513f. Issue is not covered under warranty.

43 Engine And Engine Cooling problem

Failure Date: 09/29/2019

Brakes wouldn't stop.

44 Engine And Engine Cooling problem

Failure Date: 07/21/2019

Tl the contact owns a 2015 GMC Sierra 1500. The contact stated that the air conditioner was not functioning properly. There were no warning indicators illuminated. The vehicle was taken to sunrise Buick GMC covington pike (located at 1800 covington pike, memphis, TN 38128, (901) 201-6267) where it was diagnosed that the condenser needed to be replaced. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 85,000.

45 Engine And Engine Cooling problem

Failure Date: 07/01/2019

I only have 57,000 miles on my truck, which is why I am reporting this. The truck turns off completely. I have been going to make a right/left turn and the truck shuts down completely. I have no power steering and limited brakes. This has happened to me twice now. I am lucky enough that I am strong enough to turn the truck without power steering otherwise I would have hit vehicles both times this happened. There has to be some type of electrical flaw that is making this happen. I want to get this resolved before my insurance company has to get involved because I am in a car accident. If this is something the manufacturer takes care of that would be great, otherwise I would just like to know if someone else has had this issue and has found the resolution.

46 Engine And Engine Cooling problem

Failure Date: 06/01/2019

Tl the contact owns a 2015 GMC Sierra 1500. While driving 70 mph, the vehicle lost power and turned off. Also, "lower driver window" appeared on the instrument panel. The contact was able to restart the vehicle and continue driving. The failure occurred seven additional times. The vehicle was taken to smail Buick GMC Cadillac (located at 5116 us-30, greensburg, PA 15601, (724) 798-0320) to be diagnosed, but they were unable to duplicate the failure. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 53,000.

47 Engine And Engine Cooling problem

Failure Date: 02/15/2019

Air conditioning system failure. Vehicle was taken to the dealership for other recall related service. I further requested they check the hvac, as it stopped working approximately 3 weeks ago. I had it recharged once, and the charge failed to hold. The GMC dealership in mobile, al explained they have received a large number of complaints about failures occurring to the ac system. He explained it centers around failure of a weld in the coils. He stated the repair costs approximately $1,300. 00 at the dealership. . . He was discounting the cost to $950. 00 to compete with the local vehicle ac shop which charges approx $800. 00 for the same service. He advised he was not aware of a recall for the problem and further advised he was surprised gm hadn't recalled, as it's a known problem with the system. I am filing a formal complaint in hopes others have done the same, as gm should be responsible for correcting this failure.

48 Engine And Engine Cooling problem

Failure Date: 11/02/2018

Tl-the contact owns a 2015 GMC sierra. The contact stated that while driving the whole vehicle system shut off including the engine, the whole eletrical system, and the a whole control panel. This issue happened while turning into a shopping lot . The steering wheel also shut down along with the window and again all functions. The contact stopped and restarted the vehicle and the control panel, the odometer display deleyed showing the correct reading and the clock had to be reset. The display stated to roll the window down and back up. The contact had to wait several minutes to get power to restart the vehicle. This has happened three times during an interval of every three months. The contact was able to restart the vehicle and drive home. The vehicle was taken to the dealer regal GMC 2615 lakeland hills blvd, bldg 3, lakeland, FL 33805 (863) 262-4222 for a recall repair. The dealer when told of the issue did a code scan and found nothing. They said to set another appointment since it was the end of the day. The manufacturer assigned a case number to the contact and will have an urgent senior representative call the contact back. The failure mileage was 25,000. Tf.

49 Engine And Engine Cooling problem

Failure Date: 08/25/2018

When making slight left turns, the truck would flash stabilitrak on the display and the steering wheel would automatically pull out of my hands and make the wheels straighten up. The radio would then go dead and then 5 to 10 seconds later the entire truck would turn off. This happened while driving down the road. This happened on 2 separate occasions with no other warnings. I contacted GMC and they have not given me any type of answer or assistance.

50 Engine And Engine Cooling problem

Failure Date: 05/01/2018

Hvac - no ac cold air.

51 Engine And Engine Cooling problem

Failure Date: 05/01/2018

My ac conditions developed a pin hole leak along the seam/braze.

52 Engine And Engine Cooling problem

Failure Date: 05/01/2018

Ac blowing warm air - may have a condition where thermal cycling on the combination transmission fluid/oil and ac condenser cooler creates a crack that may allow refrigerant to escape. This condition consequently may deactivate the ac system.

53 Engine And Engine Cooling problem

Failure Date: 04/28/2018

While at low speed and at stops while turning the wheel the entire dash and engine cut off and come back on. The steering also locks up to a point of not turning either way. All incidents happened on a very smooth flat road. This put my life in danger on one occasion while turning on a highway where my entire truck shut off mid turn. I have video of this occurring on my phone if you would like to reach out to me for that. I believe this to be a stabiltrac issue, one of GMC's traction control branding things. I have seen this issue all over google while searching it and it needs to be recalled! I would like to know if this will happen.

54 Engine And Engine Cooling problem

Failure Date: 06/15/2017

The contact owns a 2015 GMC Sierra 1500. While driving 5 mph, the steering wheel became extremely difficult to turn. The engine also lost power without warning and the rearview camera display failed to function. The failure recurred two other times. The vehicle was taken to phil moore Buick GMC (5728 I-55 north, jackson, ms 39211), but the failure could not be replicated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 36,000.

55 Engine And Engine Cooling problem

Failure Date: 05/03/2017

Takata recall. I recently called the dealership where they confirmed multiple calls on the ac condenser leaking freon. We have two 2015 GMC sierras with the same leak. A service center employee/mechanic at bob brockland in columbia IL verified multiple complaints.

56 Engine And Engine Cooling problem

Failure Date: 02/23/2017

Air conditioning condenser failed. Does not allow defrost to operate.

57 Engine And Engine Cooling problem

Failure Date: 11/03/2016

Problem presented as engine dying at stop signs and progressed to engine miss with random engine stop. Was sent to shop 3 times over a eight week period with no resolution to problem.

58 Engine And Engine Cooling problem

Failure Date: 06/01/2016

Tl the contact owns a 2015 GMC Sierra 1500. The contact took the vehicle to astro Buick GMC (2238 white hall blvd, white hall, wv 26554, (304) 366-4460) for the air conditioner not functioning properly. The contact was informed that the condenser needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The VIN was not available. The failure mileage was approximately 25,000.

59 Engine And Engine Cooling problem

Failure Date: 01/02/2016

2015 GMC sierra has a delay throttle response. Does it at all speeds and from take off. Took to dealer and service advisor pulled truck in shop. Got out and said it does have a delay. The ran VIN number through GMC data base and told me. Manufacture said it was a normal thing. It's not normal and never had a vehicle with a throttle delay.

60 Engine And Engine Cooling problem

Failure Date: 05/18/2015

Made 1 trip out of state to visit my son and to carry him a bedroom suite. I live in GA. And he lives in tenn. When I returned I noticed fluid under the truck. Called dealer in brunswick GA. They said to bring the truck then. When truck was put on rack, found engine heads were faulty. Had to order new heads, then had to machine heads when arrived. Also transmission down shifted extremely hard in hills of north GA. To the point of engine rpm 4500. Contacted GMC complaint dept. But as of 6/2/15 no help.



Sierra 1500 Service Bulletins
Sierra 1500 Safety Recalls
Sierra 1500 Defect Investigations