2020 Chevrolet Silverado 1500 fuel, hybrid & EV propulsion problems

Related recalls

• Recall 19V837000Nov 21, 2019502 vehicles
  FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

  General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.

  Risk: Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.

  Remedy: GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.

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 25, 2026MOEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   have notice that the car jerks hard from time to time and when try to accelerate the car does a quick/short stop then accelerates hards very jerky. Also I smell coolant and my check engine light came on..

   NHTSA complaint #11766864 · source
3. Filed Sep 1, 2026MDFuel, Hybrid & EV Propulsion

   Vehicle sent alert on phone saying battery critically low, then the vehicle started having fuel gauge issue and started lurching. Shut the vehicle down saw a P129F in the alerts. Checked battery vehicle was a no start. Luckily near a shop so it wasn't catastrophic and was able to r eplace the fuel pump control module and it instantly started. This part NEEDS to be recalled it is a safety hazard that chevy does not aknowledge

   NHTSA complaint #11761424 · source
4. Filed Aug 19, 2026CAFuel, Hybrid & EV PropulsionTransmission & DrivetrainWheels & Tires

   While driving at highway speed, my vehicle developed a serious transmission problem. At approximately 75 mph, it suddenly lost the ability to maintain speed and dropped to about 55 mph despite throttle input. Engine RPM increased significantly and the vehicle had greatly reduced propulsion. Normal operation temporarily returned after the vehicle was shut off and restarted. The vehicle has also experienced harsh shifting, vibration, limp-mode behavior, a check-engine light,…

   NHTSA complaint #11758115 · source
5. Filed Jul 27, 2026TXEngineFuel, Hybrid & EV Propulsion

   Description of Problem: While driving, the engine intermittently revs on its own without any input from the accelerator pedal. During these episodes, the vehicle also shakes/vibrates noticeably. This has occurred [once / multiple times — specify frequency, e.g., “several times over the past X weeks”]. The engine revving is not consistent with normal acceleration and appears unrelated to throttle position. The shaking is felt throughout the cabin and is most noticeable [at…

   NHTSA complaint #11753094 · source
6. Filed Jul 7, 202694,000 miMIDriver Assistance & Safety TechEngineFuel, Hybrid & EV Propulsion

   The contact owns a 2020 Chevrolet Silverado 1500. The contact stated while driving at 35 MPH, the engine started knocking, and the sound grew louder while making a turn. The Electronic Stability Control and check engine warning lights illuminated. The vehicle was taken to a local dealer, where one diagnostic trouble code was displayed, but the vehicle was not repaired. The vehicle was then taken to a second local dealer, who retrieved a code for fuel injector number eight…

   NHTSA complaint #11748710 · source
7. Filed Jul 3, 2026NYElectrical SystemFuel, Hybrid & EV Propulsion

   I have a Trial Boss and it wont shut off when the key is off, KEEPS RUNNING. Did some research and it gave a couple of thing to check.

   NHTSA complaint #11748224 · source
8. Filed May 18, 2026MAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   The defective manufacturer lifters on my 2020 Chevrolet Silverado 1500 went on my truck damaging the lifters, camshaft, oil pump and I'm sure more than that. I know it's an ongoing investigation/lawsuit with General Motors, but they need to held accountable and should fix this issue free of charge. Not everyone has $5k-$10k+ to repair their engine due to their negligence. Thank you

   NHTSA complaint #11738647 · source
9. Filed Mar 13, 2026LAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   6.2l engine noise at start up and stays on and loses engine power sluggish all of a sudden while driving same issue like the current recall on all 6.2l except mine was built right before approved recall dates but has same engine l87 with same issue and is currently undriveable and dangerous if taken on road. Regular oil changes at 50% oil life with recommended mobil1 oil & acdelco oil filter.

   NHTSA complaint #11724052 · source
10. Filed Mar 11, 2026WIEngineFuel, Hybrid & EV Propulsion

    Engine lifter failure while traveling at highway speeds, loss of power in traffic during rush hour on a multi lane interstate nearly got rear ended and side swiped.

    NHTSA complaint #11723711 · source
11. Filed Feb 25, 2026OHEngineFuel, Hybrid & EV Propulsion

    My entire engine and the right bank lifters failed. Thankfully, these issues didn't fail until my truck was parked in my garage. No warning lamps did not trigger until these issues started. There was no warning. I have been having engine issues with this truck dating back to 2022. I will include all documents showing the issues I've had in the past 3 years. I was informed by the dealer that this is a known issue with this year and model of truck and even they were surprised…

    NHTSA complaint #11720353 · source
12. Filed Jan 12, 2026AKElectrical SystemEngineFuel, Hybrid & EV Propulsion

    What happened: In mid-December 2025, my 2020 Silverado 1500 (VIN: [XXX] ) suffered a catastrophic failure of the DEF Tank Assembly (P/N 84914535) at 29,354 miles—less than 30% of its warranted life. This is a latent design defect involving undersized terminal pins that suffer thermal degradation and melt the connector during high-amperage heater operation in arctic conditions (Ref: GM TSB 21-NA-006). Component Availability: The failed assembly is held at the dealership. I…

    NHTSA complaint #11710280 · 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