Diagsheet

2021 Chevrolet Silverado 1500 · symptom sheet

Transmission fails or needs replacement

  • 28owner reports
  • 84,000median miles
  • 0involved a crash

Newest report Sep 9, 2026 · checked Oct 2, 2026

238 of the 828 complaints on this car are about the transmission and drivetrain. 28 of those describe transmission failure.

2 recalls on this systemcovering the 2021 model year
No crash reportedin 28 reports

Tick what matches of 28 reports

1
18
2
3
8

Transmission failure on other Silverado 1500 years

Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2020, 2022, 2023, 2024, 2025, 2026.

What this problem usually is

This is the end of the road for a transmission: the car stops moving under its own power, or a shop says the unit has to be replaced or rebuilt. Half of the owners here mention a warning light or message, and a quarter mention it happening again or to a second unit.

Read the full explainer · Which cars report it most

What got replaced

Owners who name the part that was replaced mention the transmission (28 reports) and the torque converter (3 reports).

Recalls and investigations

2 recalls on the transmission and drivetrain cover the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.

26V-083Feb 12, 2026
Power Train:Automatic Transmission:Control Module:Software

The transmission control valve may fail and cause the rear wheels to lock up.

Risk, remedy and owner complaints on recall 26V-083

24V-797Oct 24, 2024
Power Train:Automatic Transmission:Control Module:Software

The transmission control valve may fail and cause the rear wheels to lock-up.

Risk, remedy and owner complaints on recall 24V-797

All 8 recalls on the 2021 Chevrolet Silverado 1500, with the owner complaints on each recalled system

When it happens

The middle half of failures fell between 67,000 and 106,000 miles, from the 17 reports that gave a mileage.

Complaints by the year NHTSA received them: 2024: 2, 2025: 14, 2026: 122'2414'2512'26

Is this a known problem?

The manufacturer has sent NHTSA 3 service bulletins or notices for the 2021 Chevrolet Silverado 1500 that deal with this problem. Newest first.

Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.

What owners wrote

“Went to put the truck in gear and it will not move the Chevy dealership saids it needs a new transmission and I see that the 21 Silverado has multiple tranny issues I bought extended warranty and they are telling me it might not be covered”

Filed Jan 22, 2026

“The transmission on my truck failed. My truck now requires a new transmission. A repair costing over $7000. The transmission gave out while pulling into a street with my wife and child in the car. The truck would struggle to go into gear and lurch violently. The dealer was able to replicate these problems.”

Filed Mar 20, 2025

“While driving vehicle pulling out into an intersection lost power do to Transmission failure (valve control body). Truck was towed to a Chevy Dealer and was confirmed transmission failure. There was no warning or symptoms prior to this incident.”

Filed Feb 12, 2025

Should you keep driving it?

This page can't tell you that. 0 of 28 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.

Guide Paid for this repair before a recall covered it? How recall reimbursement works

Other problems on this car