I took my Chevy into the dealership because I started to have problems shifting and would hear a chattering sound while driving. The dealership told me I needed a whole new transmission on a 2015 Chevy Silverado 1500 with only 70,000 miles. They originally quoted me $6,341 to fix it which was high but considering the cost of trucks right now I decided to fix it. While they were in the process of fixing it they said the starter motor will need to be replaced and it’s going to cost an additional $229 plus tax to fix on top of the $6,341 they already quoted me. I say go ahead because I figured I had no choice at this point.

Then the next day I get another text saying they have to replace the coolant manifold and that’s going to be an additional $1,057 plus tax to fix. So now I’m looking at a repair cost of $7,627 plus tax for something that is not my fault. This is ridiculous. I’ve considered contacting a lawyer for it because there is a lawsuit on transmissions for multiple GM cars. I also had a friend who has the same truck as me and his truck had 90k miles on it and his transmission went out and needed to be completely replaced. I’m frustrated, I’m annoyed. I don’t know what to do at this point.

Third time is a charm.... aaah.... Not quite. At the end of my extended warranty I took the truck in a third time for transmission reprogramming. Warranty period was ending due to time, not mileage. I made sure my trucks vin has comments against it regarding the transmission still shifting poorly, very harsh at times. Harsh shifts when occurring are at neutral throttle up shift or with no throttle applied (obviously) when slowing to a stop.

The transmission has been exactly the same from very early on after purchasing the truck new. I gave GM allot of my hard earned money. And I get treated allot of excuses for transmission and paint peeling (white GM truck).

I really want to buy another GM pick up... but at this point I likely will take my chances with Ford or Dodge's electrical.

Pretty much ever since I got this back in 2015, the transmission has always given me a problem. Never shifting properly, and I've been to the dealer for service at least 15 times telling them it was an issue and all they kept saying was there is no issue. They even reset the transmission once saying it would relearn how to shift and that did nothing.

Then back in November 2020 one of the cylinders blew (dealing with gears 4-6).- truck was rattling and jerky. Brought it immediately to the dealer and they tell me it blew. So pissed and of course the warranty expired in May of 2020 - so ironic!

They fixed the cylinder and now the truck still does not shift properly, feels very sluggish at 30 mph.

SO ANNOYED! Chevy needs to do something about this!

I AM REALLY DISAPPOINTED ON HOW MANY COMPLAINTS AND REVIEWS ABOUT THE TORQUE CONVERTER THAT RELATES TO THE TRANSMISSION ON THESE TRUCKS. I WAS TOLD ON FRIDAY ABOUT THAT WITH MY TRUCK. MY FATHER WHO BELIEVES IN CHEVROLET HE HAD THIS ISSUE AND THEY CHEVROLET GMC REFUSE TO HELP HIM AND STATED THAT THERE IS NO RECALL ON THE VEHICLE. I HATE I EVER PURCHASE THIS TRUCK (MY 1ST TRUCK). SO NOW I GET A CALL FROM THE CHEVROLET DEALERSHIP STATING THAT IT WILL BE $5000.00 FOR AN AFTER MARKET TRANSMISSION. REALLY. I AM PLANNING ON DOING A CLASS ACTION LAWSUIT. I AM SO DISAPPOINTED WITH CHEVROLET.

I purchased my 2015 Silverado brand new in November of 2015. Ever since I got it the idling and transmission shifts have been HORRIBLE! The rough idling causes vibrations at any speed. Transmission shifts poorly at any speed as well. At about 25,000 miles I started noticing a chirp sound every time I accelerate. Taken my vehicle in about 3-4 times that have been documented and nothing was found. Took it in again late last year and was advised to take the service manager on a ride so he could hear it. No offense, I do not dispute that these service managers are a wealth of knowledge, but we all lose some hearing as we get older. He couldn't hear the issue and said he wouldn't even know where to start to look. My vehicle now has about 58,000 miles and I feel like the issue is only going to get worse, very discouraging. I have a 2004 Silverado with 158,000 miles on it that sounds and runs 100% better than this one does. EXTREMELY DISAPPOINTED! Wish GM would listen to our complaints as we well have similar ones.

The truck can’t seem to get out of its own way. If you mash the gas and then let off on it and then mash it again the RPMs will go up, but the truck will not move about three seconds later it will jerk and takeoff hopefully by then you haven’t been T-boned turning left through an intersection.

If you accelerate slowly from a red light it takes 3 to 5 seconds for it to shift gears it just shakes and wobbles until that shift takes place. Floor it from a stop and shifting gears it wobbles and either jerks into gear or slips horribly into gear.

I have called GM and they put the blame on the car dealership where i purchased the truck and in turn the car dealership puts the blame back with GM.

The dealership states they cannot reproduce this shifting thing on the computer in the service department I asked how many times they ran it through the computer and they said once I tell them that I get this crazy shifting about 1 to 2 times out of 10 and please repeat the test to assimilate driving conditions. that’s when they hold out their hand and asked me to pay for the test.

Ever since I bought this truck new there has always been a shifting problem. This problem occurs whenever I slow down to a fairly low speed and then accelerate. When I accelerate there is a hesitation for a second or 2. This is very annoying and could potentially be dangerous. I have contacted my dealer and he just says "that's the way they shift, no fix"??? Dealer also stated that the transmissions have a learning chip and shifts the way a person normally drives - that's total BS. I have had my truck for over 2 years and it still shifts poorly. Besides the above I love my truck very much, GM just has to fix this problem...

I've been researching hoping to find a solution to the 8 speed transmission in my 2015 Silverado LTZ Custom Sport Z71 with 6.2 l. It does the same as many others have described on here. The shifting is horrible, feels like its going to rip the drive line out at times. I've taken it back to the dealer at least 5-6 times, I've been told it needed to be reprogrammed, that it needs to get used to the way I drive, and poor gas. Finally the dealership replaced the transmission and this was great, my truck was driving and shifting like it should and then after a couple of months it went right back to doing the same thing, it even surges at times when you first put it in gear so you best have a good foot on the brake.

I'm at a loss now, I don't know what to do. I got a price to trade it in but it was going to cost me a great deal more and I honestly don't see why I should have to spend more to get a vehicle that is mechanically sound when my truck only has 15,000 miles on it. I love my truck, the 6.2 has excellent power but what happens when my warranty runs out.

I've watched and hoped someone would start a class action lawsuit against GM for knowingly selling vehicles with problems. Or have they fix the problem in the 2017's. I know some of the corvettes have the 6.2 motor do they have the 8 speed transmission also? If so do they have the same problems?

As for the lemon law, I'm in Louisiana and honestly not sure if that would work here. I just know when you pay 56,000 dollars for a vehicle you expect to have zero trouble out of it.

If anyone finds a solution please post it here for us all to see.

I have a 2015 LTZ Z71 Silverado I bought in August of 2015. Since the beginning a few weeks after I bought the truck I noticed a hard shift on the transmission. each time I brought the truck in to the dealer ship for an oil change I let them know. They have tried everything to get rid of the hard shift. re-programming, re-diagnosing the transmission, re-programming the shift patterns. This last trip they replaced the entire transmission and the problem still occurs. The next trip will be the fourth attempt and and then I'll take legal action on GM. The kick is hard enough when it shifts that you feel like your getting rear ended from 3rd to 2nd. also you think your transmission will drop out it goes into gear so hard. For spending 51 k on Chevy's top end 1500 on the market I shouldn't have to deal with this type of issue.

Update from Sep 22, 2016: I am now at 23,000 miles, after the fourth and final trip. A GM rep came and re-programmed the transmission again. Of course after this the truck still shifts hard. I have now filed with GM and i'm working with a lawyer on the issue. The problem was not fixed.