2015 GMC Sierra 1500 · symptom sheet
Transmission shudders, slips or shifts hard
- 33owner reports
- 58,000median miles
- 0involved a crash
Newest report Sep 22, 2026 · checked Oct 2, 2026
98 of the 719 complaints on this car are about the transmission and drivetrain. 33 of those describe transmission shudder.
Tick what matches of 33 reports
Transmission shudder on other Sierra 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
This is the biggest drivetrain group on the site: a transmission that shudders, slips, hesitates or bangs into gear. It's the everyday version of transmission trouble, where the car still drives but doesn't drive right, and it has three narrower sheets of its own for jerking, hesitation and slipping.
What got replaced
Owners who name the part that was replaced mention the torque converter (4 reports) and the transmission (3 reports).
Recalls and investigations
No recall on the transmission and drivetrain covers the 2015 model year as of Oct 2, 2026.
When it happens
The middle half of failures fell between 15,000 and 100,000 miles, from the 20 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 22 service bulletins or notices for the 2015 GMC Sierra 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears.
This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise.
This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
18 more on the 2015 GMC Sierra 1500 page.
What owners wrote
“During day to day driving when the truck is accelerating from a stopped position there's a massive clunk or hard shift from either 1st to 2nd gear. have also heard similar complaints from other 2015 sierra 1500 owners saying the transmission is having a hard shift on acceleration from a stop. Have seen possible issues with the TCCM”
Filed Feb 18, 2026
“I believe the torque converter failed and resulted in the transmission starting to fail. It still goes down the road but shudders when slowly gaining speed”
Filed Mar 17, 2025
“Vehicle has jerking and feels like you are being hit. scared for my safety. Have taken my my Vehicle to a transmission shop for investigation.”
Filed Nov 10, 2023
“The 8-speed transmission in 2 and 3 gear exhibits a hard shift...no slippage. When slowing down to a stop you hear what sounds like two steel barbell weights slamming together. You feel like the transmission will break and leave you in the middle of an intersection. I have visited the dealer and they state this is normal. My vehicle only has 41000 miles on it. This has been an issue for me for the last 3 years.”
Filed Jun 20, 2022 · 41,000 miles
Should you keep driving it?
This page can't tell you that. 0 of 33 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Brakes grind, pulse or wear early 229 reports
- Headlights too dim or fail 83 reports
- A/C blows warm or the compressor fails 51 reports
- Power steering cuts out or goes heavy 44 reports
- Engine stalls or loses power while driving 40 reports
- Airbag warning light or recall 37 reports
- Infotainment, screen or backup camera fails 33 reports