2015 Chevrolet Silverado 2500 transmission problems

Filed Jan 26, 2026 · Transmission · 109,000 miles · LA

The contact owns a 2015 Chevrolet Silverado 2500. The contact stated that while driving approximately 50 MPH, the vehicle started to vibrate and shudder abnormally. There was no warning illuminated. The contact continued driving at approximately 30 MPH. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The contact had another 2015 Chevrolet Silverado 2500 in 2025, and the vehicle experienced similar symptoms before the transmission failed. The contact stated that the vehicle was towed to a dealer, who advised that this was a known failure with the 6-speed transmission. The contact was informed by the dealer that the torque converters were too small for the transmission. The manufacturer was not informed of the failure. The failure mileage was approximately 109,000.

Filed Jan 10, 2026 · Engine, Fuel system · IL

My pickup truck has a Duramax diesel engine with a CP4 diesel injection pump. That pump has not failed yet in my truck. However it has been known to fail in numerous other GM vehicles with Duramax engines and when it does fail the engine comes to a complete stop and cannot be restarted. This is a potentially hazardous even fatal situation. Repair if the pump fails is very expensive - $12,000 to $14,000 in some cases. I would like GM to replace the injection pump at my dealership to ensure this known failure does not occur. My pickup truck is otherwise in excellent condition.

Filed Nov 18, 2025 · Transmission · WI

In november around the 20th -battery went dead-charged battery and took vehicle to brothers and started to shift funny-battery went dead again-charged and drove home -then went got new battery -put in and it would not shift right so drove it a little while to see if it would stop made noise and taken to garage in south wayne-told us said the transmission was shot-he hauled it to dubuque iowa transmission shop-they took it out of truck and overhauled it with heavy duty parts-cost of 6,330.00=miles at time 51500 back march 28 2025-works beautiful as it should-scaned bill and attached-we need reimbursement for cost.

Filed Sep 15, 2025 · Electrical, Steering · AK

Steering great box replaced steering still not stable, electrical glitches such as stability trac service message, hill assist, breaking assist messages pop up and then disappear constantly, power steering pump, hydro boost and master cylinder replaced multiple times, no sound emitting for seat belt, door chime , turn signals with no accessory mode power when key is turned. Vehicle has been in and out of shop for repairs and noone can figure out the sound or electrical issues and keep replacing the steering and power steering components. When using driver side window switch all dashboard lights increase in brightness then dim back down

Filed Sep 4, 2023 · Transmission · TX

I was pulling a camper in in downtown Dallas Tx and the TCM failed was most ran I’m not sure how times trying to get clear of traffic to safe place on the side of the road.Dealership told me I was just she it out of luck cause there not making the part any more and that’s when I found out GM has known about this for a long time and has done nothing to fix it.

Filed Apr 7, 2023 · Electrical, Transmission · UT

I was driving on Interstate 15 northbound on March 6th, 2023. I was driving 70 mph, my truck dash had a message come on that said Stabilitrak needs service. Once this came on the truck dropped down to 45 mph during rush hour traffic. My truck is currently at Young Chevrolet in Layton, Utah because this happened again last week on Monday April 3rd, 2023. The Stabilitrak message came on and then my PRNDML indicator disappeared. I could not get the truck to go into any gear besides neutral and drive. I had to shut the truck off, wait then restart it. This happened when I was trying to back the truck up into my driveway and I was almost hit by another vehicle. The technician at Young chevrolet said my TRANSMISSION CONTROL MODULE WAS BAD, from my own research of online forums and social media pages, there are numerous others with the same exact problem. Others have gone months to almost a year without their trucks back on the road and GMC and Chevrolet do not have a replacement part, nor can they make any repairs to this module. Some have been told by the end of april they will have replacements, others have been told July-October of this year. This affects model trucks 2500HD and 3500HD years 2009-2015. This HAS TO BE A RECALL AND GMC/CHEVROLET/ACDELCO NEED TO REMEDY THIS PROBLEM ASAP.

Filed Mar 14, 2023 · Electrical, Transmission · UT

Driving 70 on interstate 15 and the stabilitrak message came on the dash, truck went into limp mode, the truck went from 70 mph to 45 mph really fast. This was during rush hour traffic and I could have gotten in a wreck. This is a transmission control module and GM and Chevrolet DO NOT HAVE THE REPLACEMENT PART. It’s on a nationwide back order

Filed Mar 1, 2023 · Electrical, Transmission · UT

Truck went into limp mode. Stabilitrak check light came on vehicle slowed down to 27 miles per hour.

Filed Dec 15, 2022 · Transmission · 69,971 miles · OR

The contact owns a 2015 Chevrolet Silverado 2500. The contact stated while driving 50 MPH and shifting into the 2nd gear, the vehicle delayed while shifting, with the check engine warning light illuminated. The vehicle was taken to the dealer and the contact was informed that the torque converter needed to be replaced. The vehicle was repaired. The manufacturer was contacted but offered no assistance. The contact was informed that the warranty had expired. The failure mileage was 69,971.

Filed Jul 7, 2022 · Fuel system, Transmission · CA

Fuel pump cracked under normal wear and tear under 60,000 miles leaving me stranded for a week and costing $1600 to replace. Transmission is very unresponsive and soupy, sometimes it kicks in late, other times not at all. Ive read this is a known issue with my vehicle.