The Lane Check

CarsChevrolet › Colorado › 2021

2021 Chevrolet Colorado: engine and transmission complaints

HIGH COMPLAINT SIGNAL
42%
28 of 66 relevant owner complaints are about the engine, transmission or fuel system

42% of relevant owner complaints filed with NHTSA on the 2021 Chevrolet Colorado are about the engine, transmission or fuel system. That is a model-level pattern, not bad luck.

Worse than 51% of the 1,230 model years we track (2010–2023).

Excludes 8 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 38%).

NHTSA data checked September 13, 2026
Share this car

Looking at a specific Colorado?Check its VIN: the full report, quotes about its own engine, and whether its recalls are still open. First report free.

Check a VIN
Drivetrain complaints
28
engine, transmission, fuel
Total complaints
74
this model year
Fires reported
1
owner-reported
Recall campaigns
1
6 crashes · 4 injuries

Complaints by component

SERVICE BRAKES18 · 24%
ENGINE18 · 24%
UNKNOWN OR OTHER16 · 22%
POWER TRAIN11 · 15%
ELECTRICAL SYSTEM11 · 15%
STEERING10 · 14%

The years either side

2010
41%
9 of 28
2011
31%
8 of 42
2012
35%
11 of 42
2013
too few complaints
2014
too few complaints
2015
16%
74 of 490
2016
20%
140 of 701
2017
67%
137 of 216
2018
59%
101 of 182
2019
62%
89 of 149
2020
62%
48 of 83
2021
42%
28 of 74
2022
18%
9 of 51
2023
24%
30 of 133

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 midsize 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 TRAIN08/25/2026
My 2021 Chevy Colorado experienced a distinct bucking and shuddering sensation under slow acceleration at lower RPMs, specifically when shifting between 2nd and 3rd gear. There were no dashboard warning lights or malfunction codes prior to the issue. The defect was officially reproduced, inspected, and confirmed by a …
SERVICE BRAKES, HYDRAULIC,ENGINE08/05/2026
The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving approximately 75 MPH, the engine revved without the accelerator pedal being depressed. The contact stated that while turning onto an exit ramp, the brake pedal was depressed to slow the vehicle; however, there was resistance to the brake …
ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE07/29/2026
Brake vacum pump experienced a catastrophic failure. I was unable to step on the break because the break pedal was hard. I ran thru a red light. I was told the brake vacume pump shattered & pieces of metal went into my engine

Three of 28 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 (1)

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…

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

Before you buy a 2021 Chevrolet Colorado

Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.

Check a VIN

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.