Table 1 shows one common service brakes related problems of the 2021 Chevrolet Suburban.
| Problem Category | Number of Problems |
|---|---|
| Service Brakes problems |
The vehicle caught on fire in our garage the vehicle had been parked outside than moved into the garage nothing smelled like smoke after it was parked other than the exhaust after I got out of my Suburban I have a good idea what caused this but until its done being ispected I happened to look back and saw a flame in the Suburban coming from the center area of the dash on the right hand side of the divers seat I thought for sure it was gonna blow up the dogs were in the back of the garage behind the vehicle off to the side I started screaming and calling for help and had to go around the house to the front door to get my husband and him and one of my sons went out there why I called 911 and was with my other son whom has a disability and they told us to get out of the house and I could not get back to the garage we were on the other side of the house going to go out on the patio my other son and husband were in the garage trying to put it out and getting to the two dogs my son went through the smoke to reach the dogs were one ran out on her own and the young german shorthair was in shock and he had to carry the 2 year old out and put them in a safe place but my husband was still trying to put out the fire he hooked his pick up to the Suburban to try to pull it out of the garage and it moved maybe a few inches he was stuffing wet towels on it also to try to stop it nothing worked the fire dept showed up and police after having to tear the inside of the front of the dash out our home owners insurance adjuster was out yesterday the Suburban has had multiple and thousands of dollars of mechanical issues even gm putting a new engine in it after only a year in a half of owning it fluid got pushed up into the wiring after a service last year there was splater inside the dash glass after a new steering wheel was istalled and I asked the dealer if they could fix that and they said that they didn't go inside there the amount of detail that has led up to this is huge.
My wife was driving the vehicle and was pulling into a parking lot. The brakes failed and would not stop the vehicle. She pressed on the brakes very hard, multiple times, for several seconds, before the vehicle finally came to stop. She then proceeded into a parking spot where the brakes again failed to stop the vehicle promptly. Several lights illuminated and a “system brake failure 43 mph top speed” message appeared, alternating with several other messages appearing. The vehicle is in for service at classic Chevrolet in granbury, texas. They are telling me that they reset the codes and that the codes are not returning. I am extremely concerned that if I pick up the vehicle at this point, the brakes could fail again and cause an accident with serious injury.
Brake master cylinder failure, took car to chevy after brakes got super hard to push , luckily no accident , felt like no brakes, at the point of failure, brake light, abs light, check engine light all went on ,at some point abs and brake light went off but check engine light stayed on and screen on dash indicated max speed 62 then in a couple of minute screen showed max speed 42 mph , then lights go off except check engine and vehicle works as it should it randomly does this in one day so vehicle was taken in to dealership where they had a hard time figuring out if thats the problem and contacted gm tech support gm and they said with these codes it should be the brake master cylinder, and it would cost me 3000. 00 to fix. On an 80 000. 00 car that's a 2021 with 82,000 miles and they are pretty certain that will fix the problem, I'm pretty sure I don't want to get in an accident at 65 to 70 mph and die I feel this is a huge safety issue and thank god wife and kids weren't in the car considering this is my wife's car to drive the kids around in.
At approximately 43,000 miles driving down the highway and lost power braking followed with a number of dash messages and lights. Took to dealer to discover the abs master cylinder is bad and needs replaced and parts are 2 weeks out to have repaired. It appears after reading online this looks to be a problem with numerous people leaving comments etc.
The computer component surged, and the vehicle is available for inspection. The vehicle brake function is lost. Stepping on the brake paddle did not apply brake. Brake function was disabled by the computer. I took the vehicle to dealer, they said it was a component that has high resistance that cause it. But not sure why it has high resistance at that time and the resistance is gone after driver restarted the vehicle. No one else inspected the component beside the dealership. There was no warning at all and this is the first time it happens. Driver was just driving normally and suddenly all the light in the instructment panel started blinking and driver tried to apply brake but nothing happen. Luckly it wasn't rush hour, and driver was able to let the vehicle roll to the freeway exit on ram and use the up ram to slow the vehicle until it almost stop and changed gear to park to stop the vehicle. Driver then restarted the vehicle and the problem is gone.
The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving at 25 mph, the brake pedal seized while depressed, and the vehicle failed to stop immediately. The check engine warning light was illuminated, and "brake system failure" and another unknown message were displayed. The contact coasted to the shoulder of the road and parked the vehicle before shutting off. The contact's husband then restarted the vehicle and drove to the residence while the vehicle made an abnormal grinding sound when the brake pedal was depressed. The vehicle was taken to the dealer, where it was diagnosed that the master brake cylinder needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 30,000.
With cruise control activated, at least 10 times since I bought this expensive vehicle the automated emergency braking activated at highway speeds - causing the vehicle to full brake without warning and nearly causing an accident each time (handling risk and risk of being impacted from behind by a following vehicle). I have formally reported this issue to dealers in mn and mt, and they only thing they said was they could not duplicate the condition during brief test rides and this was not a know problem. I personally know this was a known problem and gm did a safety recall for this condition on my15-20 Suburbans. This condition is definitely an unreasonable risk to motor vehicle safety. In additional, the original tires supplied by gm (firestone) failed under normal driving conditions after only about 35,000 miles, and both gm and firestone denied there was any warranty coverage. Since then, new les schwab tires failed at about the same mileage. Something is obviously not right with this vehicle, and this condition is also an unreasonable risk to motor vehicle safety. Finally, last week my front passenger wheel cracked. I have not hit anything significantly hard with that wheel - but it is nonetheless cracked. This is also obviously defective and an unreasonable risk to motor vehicle safety.
We were traveling approximately 30 mph approaching an intersection of a 5 lane road. A vehicle in front t of us had pulled into the turn lane. As we approached the vehicle that was already completely in the other lane, our car suddenly braked to a complete stop even though my foot was only on the accelerator as it is a 40 mph speed zone.
I was driving on the freeway about 65 mph on Saturday June 18. In a sudden instant, there was a message on my dash "brake module failure" and "speed limited to 62 mph". Also warning message that "forward collision warning was off" , etc. The abs light, the "check brakes light", and the check engine light all were on. Also, the power brakes went completely out and to stop I had to press really hard with manual brakes. I don't think a small framed person would have been able to stop and if I had been at a moment where I needed to stop quickly I don't think I would have been able to stop had there been a need to stop quickly. The dealer tells me that the brake master cylinder failed. The car has 43,000 miles and has been well maintained.
While driving, I received a notice identifying a problem with the esc system and that there was a brake system failure. I have received an advanced diagnostics alert about the antilock braking system. The vehicle was difficult to stop and required excessive pressure on the brake pedal.
In traffic, approx. 10-15 mph car in front stopped short. I put foot on the brake pedal and pushed the brakes pedal to the floor. The car did apply the brakes equally as hard as I was appling brakes at the pedal.