Chevrolet Suburban 1500 won't start problems

Filed Apr 20, 2026 · Electrical, Transmission · CT

2025 CHEVROLET SUBURBAN HIGH COUNTRY. Vehicle is parked in my garage. Went out in the AM and the engine only cranks, will not start. Called On Star for roadside assistance. Sent a tow truck, the vehicle could not be towed due to the electronic transmission. There is no way for an owner to place the transmission in neutral. Vehicle is stuck in my garage. GM customer service referred me back to roadside assistance who for the second time stated that they could not help me. This is a serious issue. The fact that the transmission can NOT be shifted into neutral unless the engine is running is a very serious safety concern.Called GM helpline a second time. They said that I should call for a tow on my own. Waiting for the selling dealer to call me back. Vehicle is currently stuck in my garage and GM does not care.

Filed Mar 13, 2026 · Engine · NJ

While driving home from Costco with my entire family in the vehicle (4 children and my pregnant wife), I noticed the engine misfiring while traveling on Interstate 80 and mentioned to my wife that something felt off with the vehicle. After exiting I-80 onto Route 46 East at the Denville exit, the truck reached the first traffic light where the vehicle rumbled violently, shook, and completely shut off. The engine would not restart. Dashboard lights illuminated but the engine would not turn over, and the hazard lights would not activate. This created a dangerous roadside situation with traffic approaching from behind at approximately 50 MPH. I exited the vehicle and stood in the roadway directing traffic to prevent an accident while my wife attempted to restart the vehicle and called 911. Police arrived and a tow truck was dispatched. The tow truck driver attempted to jump start the vehicle, but it would not start. The vehicle had to be winched onto a flatbed tow truck.

Filed Feb 2, 2026 · Engine · NY

We have 8,625 miles on our 2025 Suburban. We were going down the highway when began to hear a unfamiliar noise. We pulled over into an error to inspect and didn't notice anything under the vehicle, which we thought might have cause the noise. We put into drive and went less than an 1/8 of a mile and our suburban lost acceleration and stopped. It would not start and couldn't not be moved, until roadside assistance took it to a Chevrolet dealership. The dealer stated the engine seized up and needs to be replaced. We were fortunate we were not going any more than 20 miles per hour and were not on a major highway.

Filed Feb 7, 2025 · Engine, Fuel system · DE

Wife is RN at a trauma hospital going to work in the morning on a busy highway. While in front of Hospital truck started to indicate to hit starter button. Truck was already running! Wife stopped at red light. Truck stopped running would not start. Stuck in middle of morning rush hour traffic had to have truck towed to dealership. At the dealership they indicated they found metal parts in the oil pan. They indicated a further look into the engine indicated it was beyond repair and had to be replaced. Truck only had 42k miles on it. They stated they had another one same situation in the shop as well and that it would take several weeks to repair. I have learned that this is a major problem with this make and model and engine. Engine quit with no warning in middle of major highway. Thank god not in an intersection or freeway.

Filed Jan 17, 2025 · Engine · FL

On January 1st driving east bound on road 520 in central florida. I was driving around 65mph when the vehicle suddenly shut off. The displayed showed a warning saying that something of the sort that I needed to press the brake to start the engine even though I was driving normally. I had to coast to the side of the road and I pressed the brake. once the brake was engaged the vehicle immediately went to park and will not start. I press the ingition button and the screen would go blank and no sound or warnings were displayed. I had to call the police to provide a safety as the vehicle was in a very dangerous area and all my family was on the vehicle. the police laid down flares and I contacted a tow truck using onstar. Onstar was unable to communicate with the vehicle to diagnosed the issue and no warnings or errors were displaying. The vehicle was towed to Carl Black Chevrolet of Orlando Florida. The dealer stated that the engine is locked (L87) and was not able to turn, therefore the vehicle does not start. The dealership technicians have informed that the vehicle needs a new engine and GM needs to approved, the vehicle is still under warranty and I've contact GM and until today, 17 days later, GM has not responded or allowed the dealership to fix my vehicle.

Filed Oct 14, 2018 · Brakes, Electrical · 500 miles · NY

It keeps stalling on us. We have replaced all the censors, the control module and we even replaced the rear end we have spent well overa thousand dollars and this vehicle still wont stay running it stalls won't start we have fixed everything the codes are reading. This continues to stall it shuts down by its self it almost killed my wife and kids a few times I want this vehicle fully repaired for free. I habe one income and I cant even catch up on my bills as we have spent more on her vehicle to still cause problems and me almost looking my family multiple times in this vehicle. This vehicle was in motion and driving down a road and all of a sudden it stalled it has done this multiple times this year.

Filed May 29, 2017 · Electrical · TX

The battery keeps going dead and something is not shutting the car down causing a parasitic battery draw killing battery I have gone through 4 battery and after about 3 days or 4 the truck does not start and 2hen I take it to autozone they say its dead and give me a new battery and tried looking up issue and see alot of people having issues and when I took to check alternator or starter nothing they are good

Filed Apr 4, 2016 · Fuel system · MO

Some days my truck will not start some days it does for instance it will start for a couple of days consecutively and then it wont start for 2-3 days after a couple of days of just sitting. I have replaced the battery, the alternator , starter , fuel pump and I'm still experiencing the same problem.this happens all the time has been going on for the past couple years, lost my job because of non reliable transportation.

Filed Jun 6, 2015 · Electrical, Engine · 179,000 miles · PA

After I put 55$ worth of gas in the truck it would not start. I waited about 5-10 minutes and it finally started.however,as I was driving,not even 5 miles from the gas station,the vehicle shut off at 45 MPH. I pulled over and kept trying to start the truck. It was cranking but would not start. After about 5-10 minutes truck did start right back up.then,not even another 5 miles the truck shut off again. This time I waited 20 minutes and the truck started right back up.I left it parked for about 5 wks then had the camshaftsensor replaced as well as the fuel pump and the fuel filter replaced,only this time the service engine light was in once these 3 parts were replaced. Service engine light was never on before these issues.ive had it scanned and it read 5 different codes,including the cam shaft sensor,speed sensors on both left and right side along with 2 more that weren't given to me. Drove it a short distance (7 miles)& it shut of again 55 MPH on a busy street.had the codes cleared and drove it short distances in the last 3 days and today when I pulled up to a redlight it began acting as if it were gonna shut off.I came back home and parked it and dont plan on driving anywhere else until someone can give me an exact answer to the problem and I have it fixed!! I was told by 2 mechanics that they couldnt find an issue!!

Filed Feb 16, 2015 · Brakes, Steering · 145,442 miles · IL

10/11/2 brakes failed plus parking brake failed and parking brake shoe assembly was not found upon dealer inspection. Replaced disc brakes and had parking brake shoe installed. 11/09/12 check engine light revealed ignition problem. New ignition wire set installed. 01/29/13 dash cluster failed, had no horn, no headlights, no interior lights, no speed control , no steering wheel lights for control buttons, no speedometer reading, no radio. Replaced dash cluster. 05/05/14 check engine light and stranded when vehicle would not start. Misfire messages on dealer equipment reading. 06/16/14 stranded again , vehicle would not start. Replaced ignition switch. 07/15/14 stranded again , vehicle would not start. Replaced starter relay. 02/16/15 driver heated seat coming on/off while driving on its own. 4 wd engaged on its own while driving and made driving uncontrolled. Awd engaged on its own while driving on dry smooth road. Stranded, would not start. Vehicle at dealer again today for this list of problems.