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2021 Chevrolet Silverado 1500: engine and transmission complaints

VERY HIGH COMPLAINT SIGNAL
75%
591 of 789 relevant owner complaints are about the engine, transmission or fuel system

75% of relevant owner complaints filed with NHTSA on the 2021 Chevrolet Silverado 1500 are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 95% of the 1,230 model years we track (2010–2023).

Excludes 26 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 73%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
591
engine, transmission, fuel
Total complaints
815
this model year
Fires reported
11
owner-reported
Recall campaigns
8
20 crashes · 17 injuries

Complaints by component

ENGINE370 · 45%
POWER TRAIN233 · 29%
ELECTRICAL SYSTEM111 · 14%
UNKNOWN OR OTHER71 · 9%
ENGINE AND ENGINE COOLING58 · 7%
SERVICE BRAKES44 · 5%

The years either side

2010
35%
76 of 424
2011
26%
81 of 638
2012
26%
52 of 284
2013
23%
62 of 365
2014
28%
401 of 1,558
2015
27%
291 of 1,185
2016
36%
270 of 797
2017
44%
343 of 836
2018
53%
257 of 514
2019
63%
658 of 1,076
2020
63%
444 of 724
2021
75%
591 of 815
2022
69%
416 of 617
2023
69%
245 of 370

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other full-size pickups with no elevated signal

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

POWER TRAIN06/22/2026CRASH3 INJURED
My 2021 Chevrolet Silverado RST 4x4 5.3L V8 was a Certified Pre-Owned vehicle purchased through a GMC dealership, strictly maintained by certified GMC service departments, and had its torque converter replaced one year prior in accordance with a manufacturer Technical Service Bulletin (TSB). One week before a scheduled…
UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM05/29/20261 INJURED
2021 Chevrolet Silverado 1500 Custom 2.7 L Turbo 4 cylinder with 34,000 miles When Truck cranks and put in gear begins moving at low speed between 1-2 gear (low speed 5-10 mph forward and also in put into reverse) hard jolted severely injuring passenger. Felt like being rear-ended by another car. Passenger was hurt & r…
POWER TRAIN08/05/2022CRASH1 INJURED
MY PICK UP WAS HIT FROM THE REAR THE DRIVE SHAFT BROKE AT THE WELL AND THE REAR BROKE BOTH SIDE OF THE AXLE TO THE HOUSING OF THE REAR I HAVE PICK OF THE REAR AND THE DRIVE SHAFT.

Three of 591 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (8)

SEAT BELTS
General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Che…
SEAT BELTS
General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade E…
TIRES
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sier…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Chevrolet Silverado 1500

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.