Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 GMC Sierra 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2014 GMC Sierra 1500. The contact stated that while her husband was driving approximately 65 MPH, the vehicle lost power steering functionality. The contact stated that an unknown warning light was illuminated and then disappeared. The contact stated that the loss of power steering functionality had increased over time. Additionally, the vehicle had started to stall at low speeds. The contact researched online and related the steering failure to NHTSA Campaign Number: 17V414000 (Steering). The contact noticed that the "Service Park Assist" light was illuminated when the vehicle stalled. The contact had taken the vehicle to a local dealer who was unable to duplicate the failure. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 215,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated while driving 50 MPH, the passenger's side headlight became inoperable. The contact stated that several unknown warning lights flashed on the instrument panel. The contact pulled over to inspect the vehicle and discovered that the water pump had failed. Despite the failure, the contact managed to drive the vehicle home. The next day upon starting the vehicle, the check engine warning light illuminated and both engine fans began to run at full capacity. The contact called the dealer and made an appointment for a diagnostic test. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 160,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated while driving approximately 65 MPH, the vehicle lost motive power and shut off. The failure recurred on several occasions. There were no warning lights illuminated. The vehicle was taken to an independent mechanic and the contact was informed that the failure was due to the oil pump, which had gone into low-pressure mode and shut down the engine. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and the contact was informed that the repairs were not covered under a recall. The manufacturer referred him to NHTSA. The approximate failure mileage was 186,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated while driving 60 MPH, the check engine warning light illuminated. There was an abnormal knocking sound coming from the engine. The contact determined that the engine had seized. The contact stated that the failure was related to NHTSA Campaign Number 25V274000 (Engine and Engine Cooling). The vehicle was towed to the local dealer, where it was diagnosed and determined that the failure was due to the lifters, and there was low compression in the engine. The vehicle was not repaired. The vehicle was towed to an independent mechanic. The manufacturer was not contacted. The failure mileage was approximately 100,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving on the highway at 55 MPH, the vehicle lost automotive power and the steering wheel became stiff. The contact stated that the vehicle decelerated to 20 MPH, with several unknown warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed, and the contact was informed that the engine had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 101,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated that while at a stop sign, the vehicle stalled. No warning lights were illuminated. The vehicle was towed back to the residence. A dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact researched and became aware of an undisclosed recall; however, the VIN was not under recall. The manufacturer was not notified of the failure. The failure mileage was approximately 81,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated while driving the vehicle, the steering wheel would violently shake and vibrate before the vehicle shut-off. Later the vehicle was restarted and operated as normal. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The manufacturer was also notified of the failure. The failure mileage was 30,000.
The contact owns 2014 GMC Sierra 1500. The contact software modification done at a transmission shop, affected the Active Fuel Management not allowing diagnostic. The manufacturer was not notified of the failure. The approximate failure mileage was 210,000
What component or system failed or malfunctioned, and is it available for inspection upon request? How was your safety or the safety of others put at risk?: The truck just stalls and dies without warning, all lights go off inside and outside and all power is lost. From digging on the internet, I found out the problem is due to one or more rusty/defective connection to ground which stops current from flowing and therefore stalls the vehicle and turns everything off. When the truck stalls, power steering and power assisted breaks are not available and this makes the truck very difficult to guide/stop for most people, making it a significant safety risk to occupants as well as others as the likelyhood of a collision increases significantly. In addition, since all electric accessories are disconnected, warning/flashing lights can not be turned on to advise others that the truck has stopped. …
The vehicle experienced complete lifter failure on cylinder number 4 bending the intake valve push rod thus shutting down the cylinder. The vehicle has 167,000 miles and is well maintained. The vehicle gave no warning signs that there was a problem. Simply driving down the road, normal engine temperature, normal oil pressure, the check engine light comes on at the same time the engine begins to mis-fire. Pulling over to the side of the road, I could hear lifter noise from the right bank of the engine. The dealership (Ocean Crest Chevrolet/GMC Warrenton, Oregon) confirmed the damage. The mechanic and the service manager both state the damage is a direct result of the GM cylinder deactivation system, and every single one they have repaired has been cylinder number 4. …
Related recalls
Engine and engine cooling › Exhaust system
General Motors is recalling certain 2014 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, and 2015 model year Cadillac Escalade and Escalade ESV; Chevrolet Silverado HD; and GMC Sierra HD, Yukon, and Yukon XL, equipped with a 4.3L engine or 5.3L engine.
Remedy: General Motors will notify owners, and dealers will reprogram the engine control module, free of charge. The recall began on January 16, 2014. Owners may contact Chevrolet at 1-800-222-1020 and GMC at 1-800-462-8782.
Engine complaints in other Sierra 1500 years
Frequently asked questions
How common are engine problems on the 2014 GMC Sierra 1500?
NHTSA has 72 complaints about the engine & cooling of the 2014 GMC Sierra 1500, 10% of the model year's 743 complaints. The component named most often is cooling system › radiator assembly (2 mentions).
Is there a recall for 2014 GMC Sierra 1500 engine problems?
Yes — NHTSA recall 14V-007 (exhaust system, Jan 13, 2014). Recall repairs are free at authorized dealers.
At what mileage do 2014 GMC Sierra 1500 engine problems start?
Half of the complaints with a recorded mileage happened before about 59,000 miles, and 15% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.