Problems · by component

2020 Chevrolet Silverado 2500 power train problems

33 owner complaints to NHTSA about the 2020 Chevrolet Silverado 2500 cite power train, 30% of all 109 complaints for this model year. NHTSA also lists 3 recalls on this component.

Complaints
33
30% of all complaints
Crashes
1
Reported by owners
Fires
1
Reported by owners
Injuries
2
Reported by owners
01 —Owner reports

What owners say about the power train

Verbatim from NHTSA complaints, newest first
“While driving on the highway our transmission cooling line completely separated at rubber hose to metal line crimp. This cause transmission fluid to burst out all over the vehicle including the windshield and trailer. Vehicle immediately stopped pulling and we barely were able to get to the side of the road. This also caused a catastrophic transmission failure costing approximately 10,000 to repair. GM covered some of the transmission cost but still left us with 5000 bill for a transmission line defect on a vehicle under 100,000 miles. This created a unsafe condition with the trans fluid on the windshield and immediate loss of drive. All maintenance was performed per manufacturers specifications and no warning signs/lights/leaks provided prior to the failure. I do have pictures of the failed transmission cooling line.”
Owner complaint to NHTSAFiled Sep 21, 2026Power trainODI 11765810
“The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that the transmission shuddered and hesitated while driving 55 MPH or at higher speed. The vehicle was taken to the dealer; however, the dealer was no longer in business. While driving at various speeds, the lifters were squeaking. The vehicle was taken to a dealer and was diagnosed with lifters failure. The contact decided not to repair the vehicle. The manufacturer was informed of the failure. The failure mileage was approximately 170,000.”
Owner complaint to NHTSAFiled Sep 17, 2026Service brakes, hydraulic, Power trainODI 11764917
“2 of the 4 Balance weights from Front Axle Propeller Shaft have become detached from their welds. Found on chassis during routine maintenance and visual inspection. Truck was just outside window of recall N202314870, Contacted GM Customer care to confirm no recall work was preformed and vehicle is outside of window of the referenced recall. Vehicle scheduled for evaluation/repair by GM Dealer 9/14/26 approx. 84000miles”
Owner complaint to NHTSAFiled Sep 9, 2026Power trainODI 11763038
“The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the transmission was slipping and shifting hard. The contact associated the failure with NHTSA Campaign Number: 26V083000 (Power Train); however, the VIN was not included. The dealer was notified of the failure, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.”
Owner complaint to NHTSAFiled Aug 28, 2026Power trainODI 11760255
“my 2020 Chevrolet Silverado has locked up a couple times on 4/2/26 i immediately drove to the robins chevy dealership, the service writer and i discussed the recall of the transmission, the next day i was sent a estimate of 6800.00 dollars to replace the valve body of the transmission, i asked why am i responsible for the replacement cost due to a known recall of the transmission valve body? i was instructed to call gm directly which i did and no action was taken, i was told to speak to the dealership manager. i need help with this matter.”
Owner complaint to NHTSAFiled Apr 3, 2026Power trainODI 11729039
“Pulling out onto road, heard a bang, no forward or backward, unable to move vehicle, brought to repair shop, says output shaft is sheared off, 68000 miles on it, looked on line, apparently common defect, my son in laws friend just had his happen getting off ramp exit, 80000 miles, I’ve read where low as 20000 miles, as well as 59000, 33000 ridiculous crap made in USA…. Please help! No repair as of yet.”
Owner complaint to NHTSAFiled Feb 16, 2026Power trainODI 11718211

Showing 6 of 33 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026NHTSA vehicle page
02 —Related recalls

3 recalls on this component

Power train: software

Free remedy

General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.

Power trainReported Feb 13, 2026NHTSA 26V083000

Power train: software

Free remedy

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

Power trainReported Oct 24, 2024NHTSA 24V797000

Power train: driveshaft

Free remedy

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.

Power trainReported Oct 22, 2020NHTSA 20V650000
Data from NHTSA Recalls API · synced Nov 8, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.