2017 GMC Sierra 1500 acceleration problems

Filed Jul 29, 2026 · Acceleration · TX

When I accelerate the vehicle, the gears shifts every 10mph when it shouldn’t. It does it all the way up to 60mph. It has been an on going problem since we got the truck

Filed Apr 18, 2025 · Acceleration, Electrical · TX

Total loss of power while in motion on highway going 70 when first happened, got video of problem for shop while going lower speeds. Truck will loose all power the dash will turn off and then turn back on sometimes the engine will cut out completely.

Filed Apr 22, 2024 · Acceleration, Engine · CA

The vehicle would shudder when trying to accelerate. I almost was hit by a semi truck trying to merge onto the freeway. Made an appointment with the mechanic then a couple days later I was at a stop sign and the vehicle would not accelerate at all. I placed in park the tried shifting back into drive and still nothing. I had to turn the vehicle on and off twice before I was able to shift it in drive an it actully would accelerate. Even then it would shudder and not accelerate fully. Very dangerous. Just hit 100k miles. GMC Certified Mechanic said the transmission is shot and needs to be replaced. Cost to replace over $6,000.00 Bought the truck in 2020 for $35,500 and just paid it off.

Filed Nov 6, 2021 · Acceleration, Electrical · PA

Lost of acceleration at a set speed the throtal stopped to increase the speed and just flooped to floor. When the speed slowed to a set point, acceleration control returned. When it hit the high setting it again lost control to increase speed. This happened every time I reached the drop off speed. Why dose this happen??? One time I was on a highway passing two trucks on a upgrade when this happened the #2 truck went to pass #1, the #2 truck was on my rear thank god acceleration returned. I reported this occurance to manufacture & to "the federal safety agency" over a year ago. I got "no" answers or responce from anyone!!!

Filed Feb 1, 2021 · Acceleration, Brakes · 19,906 miles · PA

Tl* the contact owns a 2017 gmc sierra 1500. The contact stated that while accelerating at 85 MPH, the vehicle independently decelerated to 70 MPH without warning. The contact stated that the throttle no longer operated as needed. The contact had taken the vehicle to faulkner buick gmc trevose (4427 e street rd, feasterville-trevose, pa 19053) on two occasions however, the mechanics were unable to diagnose the failure. The manufacturer was also notified of the failure and informed the contact that they had never heard of such a failure. The contact then spoke to an independent mechanic who informed him that the defect may be linked to a speed sensor and a computer malfunction. The contact then took the vehicle to another independent mechanic who reprogrammed the computer software. The vehicle was repaired. The failure mileage was approximately 19,906.*dt

Filed Sep 10, 2020 · Acceleration · 74,259 miles · AL

When stationary I pushed in on the gas throttle to go it didn't go so I pushed in a little more and it accelerated to fast then like it jumps. It also is shaking at certain speeds.

Filed Nov 15, 2019 · Acceleration, Transmission · 33,042 miles · TX

Tl* the contact owns a 2017 gmc sierra 1500. On several occasions, the accelerator pedal was depressed; however, the vehicle failed to respond. On one occasion, the gear shift lever was placed in reverse and the accelerator pedal was depressed; however, the rpms revved without the vehicle responding. The vehicle was taken to greg lair buick gmc (16200 canyon dr, canyon, tx 79015, (806) 553-5706) on two separate occasions; however, the transmission technician was not available to diagnose the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 33,042.

Filed Jul 12, 2019 · Acceleration, Transmission · 1 miles · NC

The truck lurches forward as if the accelerator is being depressed while coming to a stop obviously while depressing the brake. This causes dangerous situations every day in traffic. I have not found any solutions to the problem online. Reprogramming computer and replacing other speed control modules has not solve the problem for other drivers.

Filed Jul 2, 2019 · Acceleration · 35,601 miles · LA

Tl* the contact owns a 2017 gmc sierra 1500. While attempting to accelerate, the accelerator pedal traveled all the way down to the floorboard. The contact stated that the entire bracket that held the pedal collapsed. The contact stated that the failure occurred ever since the vehicle was purchased in may of 2017. The vehicle was taken to walker buick gmc (1616 macarthur dr, alexandria, la 71301) on three occasions. The dealer replaced the bracket once, but the failure recurred. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 35,601.

Filed Nov 23, 2018 · Acceleration · 26,000 miles · AZ

Tl* the contact owns a 2017 gmc sierra 1500. While driving 75 MPH with the cruise control activated, the vehicle decelerated without warning. The vehicle was pulled over to the side of the road, waited approximately twenty minutes, and restarted the vehicle. The vehicle was taken to findlay chevrolet buick gmc (928‑754‑3400, located at 2565 laughlin view dr, bullhead city, az 86429) to be diagnosed, but the failure could not be duplicated. The manufacturer was made aware of the failure and stated that it would be investigated. The contact was not called back. The failure mileage was approximately 26,000.