2020 Chevrolet Silverado 1500 acceleration & cruise control problems

Related recalls

No recalls on file.

What owners say

1. Filed Oct 7, 2026TXFuel, Hybrid & EV PropulsionAcceleration & Cruise Control

   I received a notice via OnStar of a P129 code of a critical issue with engine or transmission system on my 2020 Silverado pickup after I pulled on to the highway. Vehicle reduced engine power warning and engine light came on. I was forced to put vehicle in neutral and restart vehicle several times. This code indicates fuel pump control module being defective. After researching, there seems to be issues with this on the the following; General Motors has issued voluntary…

   NHTSA complaint #11769554 · source
2. Filed Sep 24, 2026TXBrakesAcceleration & Cruise ControlWheels & Tires

   1) The vehicle experienced a rear axle/rear-wheel lock-up after the recall-related repair was performed and the same diagnostic codes associated with the initial repair reportedly returned. 2)The rear axle/rear wheels locked while the vehicle was being driven on the highway, creating a significant loss-of-control and collision hazard. A sudden drivetrain/axle lock-up at highway speed causes the vehicle to stop or behave unpredictably, potentially resulting in a severe…

   NHTSA complaint #11766697 · source
3. Filed Aug 11, 2026CAElectrical SystemEngineAcceleration & Cruise Control

   Unknown which system failed. While driving on the freeway, truck lost power for a few seconds. Dash lights turned off and back on. Our safety and the safety of others on the freeway were at risk as we had no control of the vehicle. Have not had the truck checked for the problem. Scared to drive it. No warnings appeared.

   NHTSA complaint #11756271 · source
4. Filed Apr 3, 202680,000 miVATowedEngineAcceleration & Cruise ControlTransmission & Drivetrain

   The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the RPM became extremely elevated. The accelerator pedal was depressed; however, the vehicle failed to respond. The vehicle was turned off and restarted. No warning lights were illuminated. The vehicle was towed to the local dealer, where it was diagnosed and it was determined that the torque converter was inoperable, and that the transmission needed to be…

   NHTSA complaint #11728992 · source
5. Filed Mar 20, 2026ILBrakesAcceleration & Cruise ControlSteering

   Intermittent issue where info says brake failure/steering assist not working/limited speed to 43 mph. Very dangerous if you’re on the interstate. Becomes hard to steer, brakes don’t work, brakes start burning up. Have to carry tools with me to reset ecm. Very common problem with Silverado with 5.3 gas engine. Chevy needs to fix this issue before someone gets killed. I would give them my truck back if I could.

   NHTSA complaint #11725948 · source
6. Filed Nov 26, 2025ALBrakesAcceleration & Cruise Control

   My truck started acting sluggish like the parking brake was applied while driving. At a traffic light I put the vehicle in park applied and released the parking brake. I put the vehicle back in gear an let off the brake. The vehicle did not move so slightly pressed the accelerator. The vehicle still acted as if the brakes were applied. I could feel the slight movement and torque being applied but only slightly lurching. The traffic light turned green so I proceeded up to…

   NHTSA complaint #11701666 · source
7. Filed Sep 5, 2025NCElectrical SystemEngineAcceleration & Cruise Control

   Truck experienced reduce power mode. Took to have codes ran and it showed 24 separate codes when engine light comes on. While riding down the road, truck will go into reduce power mode, shift automatically into 4x4, and several other notifications will appear. Taking to dealership and was told the electrical wiring harness was shorting out causing this issue. Cost around $700 for repair, happened one month later, took it back and no charge for the 2nd time. It is currently…

   NHTSA complaint #11685203 · source
8. Filed Sep 3, 2025SDAcceleration & Cruise ControlTransmission & DrivetrainWheels & Tires

   With only 70,000 miles on the truck it started to have a hard shudder and wheels locking up. During the wheel shudder it would shift hard as well. We took it to a shop and they said it was our Transmission control module and that the transmission had metal shavings and would fail soon. They also said doing any service to these transmissions can cause failure.We were informed that the dealership is aware these transmissions are all failing. The cost to replace is over $6,500.…

   NHTSA complaint #11684802 · source
9. Filed Jun 18, 2025FLEngineAcceleration & Cruise ControlTransmission & Drivetrain

   When a Check engine light is on it's for a low voltage on the charge air coolant sensor, took to the chevy dealer, they replaced a connector to the sensor, at a cost of $600 never got off lot, light returned, they then said I need a new engine wiring harness at a cost of $10.000, the dealership said this is a problem with these trucks and GM knows about it but won't recall them. Now I'm struck with a 5-year-old truck that I can't use, When this light is on, I also receive an…

   NHTSA complaint #11667802 · source
10. Filed Jun 17, 2025FLBrakesElectrical SystemAcceleration & Cruise Control

    Vehicle started and behaved as expected when leaving my home and for a dozen lights or so between my home and place of the incident. While stopped at a red light, the auto stop function shut the truck down as normal. On re-start when getting green light, after releasing brake pressure, the start up was belabored for two turnovers before starting up. As I pulled off the stop with a green light, the dash lights illuminated and display started rolling through system failures,…

    NHTSA complaint #11667337 · source
11. Filed May 27, 2025FLEngineFuel, Hybrid & EV PropulsionAcceleration & Cruise Control

    My husband was driving our family truck onto the highway to merge into traffic, when he lost all engine power, several dash lights turned on, and a clanking noise started. This was an extremely dangerous situation because the truck stalled, while trying speed up into highway traffic. He swerved to avoid cars and pulled off to the right shoulder. This a major safety issue because if either of my teenage daughters had been driving the truck, they would likely not have been…

    NHTSA complaint #11663250 · source
12. Filed May 11, 2025MSBrakesAcceleration & Cruise ControlTransmission & Drivetrain

    Transmission is changing out very hard in each gear. On tonight while I was driving, I lost speed on the interstate and when I push the accelerator, It was like back wheels were locked up. I left it at the next exit gas station and came back and towed it home. Lucky I was able to put hazard lights on and get off the side of the road but it was very slow speed. Yes I have had it look at certified dealer under Cheverolet. It was no warning light. I was going 65 and in a split…

    NHTSA complaint #11660298 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology