8 speed transmission clunks when shifting into 2 gear and at times feels like you got rear ended. When it down shifts into the lower gears it's also clunks and is not smooth. This is happening when going at slow speeds and is worse after a cold start. The vehicle shifts fine at hwy speeds. I have already brought it to the dealership twice and problem is still there. Talking to other people with GM 8 speed transmission and they are having the same issue. 8 speed transmission needs recall. Possibly torque converter.

- Elk River, MN, USA

Engine hesitation, or misfiring. Jerking, or transmission shuttering when engine is at low RPM and on incline. (I.e. when traveling about 45mph and start up a hill, the RPM's are about 1300, and the transmission doesn't gear down, so it starts shuttering until you give it more acceleration than usual.) after dealing with this issue for nearly 8 months and 15K miles, I believe this safety issue should be recalled. Dealer originally acknowledge the problem but was unsure of the cause. After 5 repair attempts the dealer say they can't duplicate and the vehicle performs as designed.

- Coalton, WV, USA

Front bumper sensors not working as designed, transmission hard shifting in low gears (city streets and highway), clock time changing on it's on by 15 min (stationary), speed display not functioning (on highway and city streets), windows going up and down on their own (stationary, in motion), gps will not complete trip directions (highway), blue tooth function losses calls or has static interference (city streets, stationary and highway)

- Apex, NC, USA

Vehicle was parked in a shopping center parking lot after being driven for approximately 15 minutes. When returning to the vehicle 10 minutes after parking it, the vehicle starter was attempting to start the vehicle despite no remote start or onstar app being activated to start the vehicle. The vehicle continued to attempt to crank and start, even after I unlocked the vehicle with my key fob, inserted the key into the ignition, and attempting to start the vehicle and turn off the key. The vehicle continued to attempt to crank and start and I smelled a strong electrical burning smell. I then saw blue/greyish smoke coming from the passenger side where the hood meets the windshield. I then gathered my belongings from the truck and watched from a safe distance. After the smoke, the truck no longer attempted to crank or start itself and the smoke was gone within 5 minutes, although there were small instances of smoke over the next 15 minutes. The truck was put on a flatbed tow truck for further diagnosis at the local Chevrolet dealership. Initial diagnosis indicated that the "starter had consumed itself" and was the cause of the smoke I saw, but no further information was available. It was quite scary to have a truck attempt to start itself with a small electrical short/fire as a result without a key being needed.

- Oconomowoc, WI, USA

Transmission abruptly shifting. Feel like the truck is being hit by another vehicle. I don't know when it's gonna do it but when it does, its scary. The other day while trying to back up into my drive way, the would not move when I pushed on the pedal. Then on it's own, the truck burned rubber backwards when I took my foot off of the gas pedal. I almost drove into my garage! this truck is not safe and needs to be removed from service! this is an ongoing problem that you never know when it's going to happen during you drive.

- Clovis, CA, USA

Vehicle hesitation and surges in acceleration. This condition is a safety issue as it hesitates pulling into traffic, surges in acceleration have caused loss of tire traction on ice covered roadways nearly resulting in a collision. Dealers have acknowledged an issue but advise they are still waiting on a fix from GM.

- Morgantown, PA, USA

Purchased my 17 Chevrolet Silverado 1500 on 11/28/17 and returned it to the dealership on 12/1/17. This was due to a severe shuddering & shifting in the transmission & severe shake in the front end at 70-90mph. They balanced & rotated the tires, saying the issue was fixed, I picked the vehicle back up on 12/4/17 but the issue was not fixed & an electrical issue had also occurred. I took the vehicle back on 12/7/18 with the same complaints regarding the transmission & shaking in the front end, as well as the electrical issue. The problem electrically was while sitting at a stoplight the bright lights flashed & the radio/navigation screen went blank. The dealership called me on 12/8/17, told me they had been unable to duplicate the issues, finding nothing wrong. I left it over the weekend, went in Monday morning & spoke to the service manager directly. He told me he had purchased the same vehicle with the same transmission issues. Said there was a possible fix by exchanging the transmission fluid & they would use a new machine pico to check it out. They had to replace the torque converter due to malfunctioning & perform a programming module update on radio, I picked it up on 12/22/17, issue with the transmission was still not resolved. I took it to a different dealership for transmission shudder, shift & shake issue most noticeable at 70-90mph, & radio issue. They were advised to perform a module update on the transmission & given 2 options on the radio, they chose to replace the screen. I took it back to that same dealership, module update made transmission/front end issue worse, especially coming out of a curve. They've replaced my 2 back tires said they were bad & should fix the shaking issue in the front end. Unable to duplicate transmission issues thus they cannot repair it. Owners with the same issues are being told GM knows but can't fix transmission issue.

- Sophia, NC, USA

Unsafe characteristic!!!! inadvertent hard shift between 1st and 2nd gear or when driving less than 10 mph. The severity of the shift has nearly caused multiple accidents due to unpredictability. When this happens it is a very startling event that can make you increase throtle press and accelerate the vehicle, oversteer in low speedturns, abruptly apply the brakes to keep from running into objects including people and dizzyness from your head striking the headrest. Each morning when I leave for work I have to make a U-turn. I never know when or how hard the transmission will kick. I've almost ran into a sign/pole if I hadn't quickly steered away from it. When looking for a parking place within a parking lot, the truck will sometime hard shift in and out of gear. I don't feel safe or confident in this truck. I'm scared to let my wife drive it in this condition. Iwas told by local Chevy service dept that is in a normal charataristic of the transmission. That GM is aware but will not correct the issue. This is my 5th Chevy vehicle and my 3rd truck. None of the others had this issue. Please advise...

- Clovis, CA, USA

Recently I have been noticing my Silverado with less then 20,000 miles has had really low oil pressure. Around 15-20 psi at idle and the transmisson slams into gear,

- Zelienople, PA, USA

Truck exhibits a rough idle after truck is driven and warm. Idle causes teh truck to shake and feels like it will die at stops. RPM drops below 300 RPM then goes back to 490 RPM. In addition the truck will start to shake and vibrate at highway speeds of 75-80 mph. GMC service performed tsb changing our engine mounts but that has not fixed the issue. This is a known issue on Silverado and no fix in site. Concerned with seat vibration this is a safety issue due to potential drive train part failure.

- Parker, CO, USA

8 speed transmission shift very rough from 1-2 and 2-1 gears, frequently hesitates, makes clunking sound. Have taken it to GM dealer and am informed that yes, that's the way the 8 speeds are. This is a $50K + truck. This transmission issue causes and can cause hesitation when needing to accelerate, thus creating a safety hazard.

- Edmond, OK, USA

In June of 2017, I bought a new Chevrolet Silverado. It runs great no problems. In November 2017 I called to make an appointment to have the oil changed. The service department told me that there is a recall on the chuggle drive quality. The service did what was needed to be done. I had to make a 5-hour trip up North when I noticed that my truck wasn't running like it was before the recall was done. I noticed that the transmission was shifting hard. When the cylinder deactivation went to 4 cylinders the engine lugs. Before the recall was done I couldn't tell when the cylinder activation was switching to 4 cylinders back to 8 cylinders it ran very smoothly no lugging of the engine. What concerns me now is when I was driving an went to make a left turn at slow speed the transmission downshifted hard where the back wheels locked up. Went through a drive through after I placed the order proceeded to the window my truck lunged forward from first gear to second gear. I am glad that no one was in front of me. I have taken it to the service department at the dealership several times. Was told nothing was wrong no codes came up. Even called GM got nowhere with them. The chuggle drive is a reprogramming of the transmission control module. GM trying to fix one problem created another problem. I pull a 5000-pound camper with this truck with the issues I am having now with the transmission shifting hard and engine lugging I am afraid it might cause me to have an accident. My truck ran perfectly before the chuggle drive quality recall was done. The recall has to be the problem. It's not a good fix.

- Rocky Gap, VA, USA

Transmission shifts hard and vehicle surges at low speed with accompaning "clunk". problem occurs in both upshift and down shift. Dealer informs me that is a "learning" curve for vehicle to understand my driving habits. However I see on several automotive forums that this has been an issue for some time and has yet to be resolved.

- Suwanee, GA, USA

The contact owns a 2017 Chevrolet Silverado 1500. While driving 25 mph, the vehicle shifted hard from first to second gear. The failure occurred everyday since the vehicle was purchased in April of 2017. The vehicle was taken to O'reilly Chevrolet (6160 E broadway blvd, tucson, AZ 85711) where it was diagnosed that the transmission control module failed. The dealer reprogrammed the transmission, which failed to remedy the failure. The vehicle was brought back to the dealer and the valve body for the transmission was replaced and the transmission fluid was changed. The failure recurred. The manufacturer was notified of the failures. The failure mileage was 16,000.

- Iron Mountain, MI, USA

Noticed after purchase that there is vibration like a bad tire 35-42 mph. Vibration felt in seat, console and steering wheel 58-65 mph. Transmission down shifts hard sometimes feels like being bumped from behind, it also hesitates and jerks after letting off the accelerator and accelerating again between 25-45 mph. When accelerating it surges, jerks and stumbles. Sometimes when accelerating the transmission downshifts and hangs in that gear until you let off the accelerator. Under heavy acceleration there is vibration in the power train and the transmission seem noisy. At 25 mph it shutters like the transmission is in to high of a gear under light acceleration. Returned to waldorf Chevrolet where I purchased it and was told they balanced 2 tires and reset the road force, scanned transmission no codes transmission ok after shop foreman road tested for 21 miles no other repairs needed. Picked it up driving home noticed all the problems were still there and after inspection of my wheels noticed that the wheels were balanced still had the old weights still on the wheels with new weights also. Made another appointment this time to have shop foreman (rick) ride with me to show him what it was doing which we did and left my truck again. After 8 days I am told it was ready I was told they did a pico scope test and the driveshaft was being replaced then only tested it was ok. Checked run out on flanges all within specs. Found the right rear tire bad. They put steel wheel from another truck on and road tested with no change. They drove another truck and it rides the same. Even has the shutters on hard acceleration. Said they called GM tac back and they don't see a problem with this. Written documents be sent via mail. Made another appointment

- Temple Hills, MD, USA

Transmission on my new 2016 Z71 lt 4X4 jumps into low gear when slowing down. I took it to the dealership multiple times, but keep getting told it shifts fine. I took it again and had a manager drive the truck with me inside and agreed the transmission was not gettin into gear in a normal way. Toon it back to get it fixed and was told transmission is fine. I need this fixed or I will be returning he truck as a lemon title.

- Kerman, CA, USA

Possible piston malfunction

- Big Spring, TX, USA

When coming to a stop hearing a clunk in the drive train had same issue with 2016 Silverado Chevrolet replaced control module and calibrated gears on 2016 but when I told them about the same issue with the 2017 I was told this is normal so why would they waste time and money trying to repair an issue in their words is not an issue is beyond me, this needs to be recall item befroe mechanical failures resut in injuries or loss of lives.

- La Porte, TX, USA

The contact owns a 2017 Chevrolet Silverado. While the vehicle was parked on a sloped driveway without the emergency brake engaged, it rolled out of the driveway. The contact found the vehicle in the middle of the street still locked and engaged in park. The contact parked the vehicle back in the driveway with the parking brake engaged. The vehicle was not taken to an independent mechanic or dealer. The manufacturer was not notified. The contact read online that this was a common failure with 4X4 vehicles as the transmission transfer cause would inadvertently shift to neutral when parked without the emergency brake engaged. The failure mileage was 31,000. Updated 10/25/17 updated 10/26/2017

- Brea, CA, USA

The contact owns a 2017 Chevrolet Silverado 1500. While driving 45 mph, the transmission failed to shift properly and made a clunking sound. The failure recurred multiple times. The vehicle was taken to a dealer where it was diagnosed that the transmission failed and needed to be reprogrammed. The vehicle was repaired, but the failure recurred. The manufacturer was made aware of the issue. The approximate failure mileage was 30.

- Moultonboro, NH, USA