2020 Chevrolet Silverado 1500: adaptive cruise control problems

Filed Jan 13, 2026 · Electrical · IL

The component that failed was the wiring harness installed in the engine area. the harness was installed right next to a dip stick. The dip stick has a sharp metal piece welded to it and it punctured the harness cutting wires on the inside. This could have been a potential fire hazard. The problem was able to be reproduced, inspected and confirmed by a certified chevy mechanic at Philips Chevy in Frankfort, IL. The mechanic also showed me the failure point on the vehicle upon a visit. The dashboard lights were flashing randomly, headlights were very dim which it very difficult to see, android auto stopped working and not able to use hands free, so that became a safety issue, cruise control stopped working, and was receiving errors for a failed fuel pump.

Filed Dec 10, 2025 · Driver assistance, Electrical · AZ

Back in 7/2025, I was going to a Dr appt in Chandler, Az. When I arrived in Maricopa, Az, my truck stalled at the first stop light and would not start. I went over Kraegan Auto parts and bought a battery. After about 10 days, I was having to jump start my truck for the next few days. I took the battery back and they realized that it wasn’t the battery my truck called for. So, now I have the correct battery and everything working like it supposed to. In Nov 2025, my battery was starting to drain like overnight, and jump starting my truck every morning. I also told them, that the transmission was acting up. When I got on the highway my truck would be at 5000 rpm while doing 60 mph. I be would have to pull over to side of the highway, shut the engine down, and restart. Usually it would be good after the first time. So, up until now, I have no heater, no AC, my windows don’t go up or down, cruise control don’t work, l can’t move my power seat, so my wife has to put a pillow behind her and a pillow beneath her when she drives our truck. And I be still haven’t mentioned all be the little icons that are lit on the steering column. My truck is at the Jerry Seiner Casa Grande, Az. I have the protection plus coverage on my truck with GA Security, and I was told that because it’s a battery issue and found me at fault, they won’t cover me and I need to pick up my truck, because I can’t afford a $680.00 price tag. I’m on Medicare. That’s why I paid the $3500 for the protection plus coverage. So I guess it’s my fault or fault of my battery, my transmission doesn’t shift gears, power windows don’t work, heater or AC don’t work, can’t forget the cruise control. They said they are not covering nothing, to come get my truck.

Filed Oct 27, 2025 · Brakes, Steering · 104,000 miles · KS

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving 71 MPH with cruise control engaged, the vehicle experienced braking and power steering failure. The Traction Control, Brake, Parking, Antilock Braking System, Electronic Fuel Control, and Check Engine warning lights were illuminated. Additionally, the Brake Assist failure, Steering failure, and Trailer Brake failure messages were displayed. The contact shifted into neutral and coasted over to the side of the road. After turning off the vehicle for approximately an hour, the contact was able to restart the vehicle and drove 40 MPH back to the residence. The contact stated that after the failure, the vehicle had to be shifted into neutral, and then the parking brake was activated to come to a stop. The contact stated that a diagnostic test confirmed the steering and brake failures. The contact used a diagnostic tool to retrieve DTC: C0580. An appointment was scheduled with the dealer, but the vehicle was not yet diagnosed. The contact discovered information related to the federal safety agency Campaign Number: 20V116000 (Service Brakes, Hydraulic), but the VIN was not included in the recall. The manufacturer had not been notified of the failure. The failure mileage was approximately 104,000.

Filed Apr 30, 2025 · Engine · SC

While highway driving on 4/8/2025, for the 3rd time in 3 months, engine light came on and I lost all control of my cruise control, parking brake disabled and loss of engine power immediately reducing my highway speed to approximately 50 mph which was very dangerous. I had to cautiously return home & called the Chevy dealer immediately. They had repaired the lifters twice before, with the most recent repair on the lifters and push rod just one month earlier. This second repair was covered under their repair warranty. Currently, it took about 10 days before a loaner car was available (after a poor google review). To date (4/30/2025) I have not received ANY feedback from the dealer (Starling Chevrolet in Mt. Pleasant, SC) regarding any repair or engine diagnosis. The symptoms of this third failure was just like the previous two failures (3 failures in 3 months!). I feel like this vehicle has Major issues as I have also had to have the radio/infotainment system replaced twice since the original purchase. PLEASE have Chevrolet do an engine recall on their 5.7 liter engine!!

Filed Mar 26, 2025 · Engine · UT

-Cylinder number 5 piston failure -Cylinder number 5 cylinder failure -Cylinder number 5 injector failure Vehicle was traveling at roughly 70 mph, everything operating normally. Suddenly check engine light came on, multiple traction control lights, cruise control disabled. Vehicle started to sputter and grey smoke showed out of the exhaust. Pulled over and shut vehicle off, checked oil and coolant level both were normal. Motor temp was slightly above normal. Restarted vehicle and it continued to sputter and smoke. Local shop ran codes that showed injector number 5 loss of signal. Upon further inspection a camera was sent down the number 5 cylinder, cylinder had excessive damage and metal fragments. Large amount of oil seen both on top of piston and on spark plug. It was determined that motor will need to be replaced.

Filed Jun 19, 2024 · Driver assistance, Engine · IL

Problem started while driving on the highway, I was speeding up from the ramp to merge into the highway. As I got to 62 mph the dashboard started blinking that i could only go up to 62 mph max. Cruise control was not on. I drove to my destination at that speed with the message on the dashboard. I arrived at my destination, parked, turned it off, a couple of hours later turned it on to drive again. At this point, the dashboard message was that I could only drive it max speed 42 mph and "service tire monitor system" I towed to my mechanic given i could not drive at that speed on the highway back home. The mechanic said it was time for a brake change and that might be the issue. He changed all the brake pads and rotors and the truck drove fine again for less than a week. As i was getting on the highway, the truck started to jerk like it wanted to stop as i was speeding up, i was going 45 mph. There was a clanking sound coming from the engine. Then multiple things started flashing on the dashboard; check engine, traction control, messages reading "service parking brake" and "service ESC" I turned the truck off for a couple of minutes on the highway shoulder. Turned it back on, the same messages were still on the dash. I again could only drive it max in the 40's mph. The faster I tried to go, the more heavy and forced the truck felt. I had to park it over night in a parking lot. The next day i scheduled an appointment with a mechanic in town who checked it and said i would be needing a new engine, that he had seen this same problem a couple of weeks ago on a same truck. He quoted me $9K.I towed the truck back home and had another mechanic come take a look at it, he was getting the codes 0P50D and P0304.He exchanged the 4 cylinder for the good 1 cylinder to see if the codes would change from #4 to #1 and it did not. He said the issue was internal at that point and suggested I go take it to the dealership under the warranty. Its not under warranty, it ended at 60K miles and I have 80K now.

Filed Jun 12, 2023 · Tires · CA

I had just left RV Park in Kingman, AZ. I had cruise control set at 59MPH when My truck began a violent shacking and a lot of banging. I pulled over on the shoulder of I-40, Got out to find tread had come off of the tire and was now wedge between brake backing plate and leaf spring. It had not lost air. Just tread came off. When tow truck driver showed up several hours later, tire was still holding air. He jacked up the axle, but deflated tire before he would remove it from truck and put on my spare. I always check my tires when I leave rv parks or after stopping at rest stops. Saw nothing wrong with tire or air pressure that morning. I had only been driving 45 Minutes, outside temp was low 80's.

Filed Jul 20, 2022 · Brakes, Fuel system · OK

My truck had been randomly misfiring but the dealership couldn’t resolve the issue because the check engine light would go away on the way there. They were able to pull codes showing a misfire taking place and told me to return if it continued. The truck started having misfire issues again periodically fir the next 2 weeks but once the check engine light stayed on I scheduled an appointment. On the way to the appointment to Hidiburg Chevrolet we were on the interstate the cruise control kicked off, the service parking brake indicator, misfire flashing of check engine light, an ESC warning, and the traction control light came on as the truck randomly pulled to the right real quick then it stopped. Once the indicators went off all warning indicators were off and cruise control would not work. The dealership pulled codes and saw every cylinder misfired and that the other issues that took place. They tested everything and could not find the source and said that they had to wait until the indicator stayed on so they could see the issue. I left with no resolution and concern that when the misfiring could damage parts and the computer. I also fear that the issue if someone isn’t aware of vehicles not fixed could lead to severe accidents and potential for death if not fixed.