Transmission Minor
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
What Owners Say
"When I was slowing down to come to a stop, the transmission downshifted loud bang as if something was stuck."
Anonymous, TX (2017 GMC Sierra 1500 SLT 5.3-L V8)"When driving on the highway/interstate. When the transmission needs to downshift to go up a hill or shift to gear 6 for better gas mileage if feels like the entire drive train is going to fall out of the truck. I have been told this is a common issue with this 6 speed tranny and GM has replaced a lot of them but has yet to fix the issue. No recall etc"
Anonymous A., AR (2017 GMC Sierra 1500 SLT 5.3-L V8)"I have carried the truck back to the dealership 8 time since I brought the truck and they can not fix the problem. General Motors know about the problem . This is my 6 brand new truck I have brought and have never had this problem. I can be driving down the road and the truck will jump ."
Anonymous A., NC (2017 GMC Sierra 1500 SLT 5.3-L V8)"The transmission was flushed a couple times in the last 3 years. It had shudder problems. Now it shifts hard( clunks 1-2 ) gear. Hard shifting between 4/5 gear around 40mph all the time. Transmission just shifts terrible compared to any cars or trucks I have owned"
Anonymous A., WI (2017 GMC Sierra 1500 Denali 6.2-L V8)"I experienced rough shifting and transmission temp gauge failure at about 50000 mile. A GM tech bulletin recommends changing the transmission fluid to correct the rough shifting. I did that and at the same time had the temp gauge replaced. Both problems were corrected. Changing both require that the fluid pan be dropped and the filter be changed."
Anonymous, GA (2017 GMC Sierra 1500 SLT 5.3-L V8)"Same as my other problem"
Anonymous, MS (2017 GMC Sierra 1500 SLT 5.3-L V8)"All these problem started about 12 month after I purchased the truck."
Anonymous A., NC (2017 GMC Sierra 1500 SLT 5.3-L V8)
"Transmission cooler lines and radiator replaced."
Anonymous A., SK (2017 GMC Sierra 1500 SLT 6.2-L V8)