2021 Chevrolet Colorado Owner Complaints

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 pedal, and an excessive amount of pressure was needed to depress brake pedal to stop the vehicle. There were no warning lights illuminated. The vehicle was not taken to be diagnosed or repaired. The dealer was informed of the failure. The dealer informed the contact that failure might cause the complete engine failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 106,000.

NHTSA ID

11754991

Incident

Aug 5, 2026

Mileage

106,000 mi

We bought this truck from a dealer (used) and before delivery the driver seat belt recall was repaired as it was still open. Now, months later, the airbag light is on with a warning and it appears that the airbags are disabled. This started as an intermittent issue and now remains constant. Not only does the warning chime when the truck is started, it will chime at random while driving which is a distraction and a significant safety concern for our young adult driver. Our local Chevy dealer will not assess the issue for less than $300. Our mechanic told us that replacing the airbag is a minimum of $800 depending on the extent of the work. Given the prior airbag recalls impacting Chevy/GMC, I thought this is important to report in case others are seeing airbag warning issues in a more widespread issue. As airbags are such a large part of automotive safety these days, I truly believe that these issues should be checked out at no cost to the consumer. Airbags should not be something that breaks down with normal wear and tear and should be a longstanding safety feature of the vehicle. Malfunction is likely a defect, not a result of normal use.

NHTSA ID

11754933

Incident

May 15, 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

NHTSA ID

11753572

Incident

Jul 13, 2026

While driving downhill nearing a stop sign my wife went to apply the brakes to stop and all she had was an extremely hard brake pedal. She panicked that she “no brakes.” She was only going about 20 MPH, and was able to stop the vehicle but it took an extraordinary amount of effort to do so. Had she had to make a sudden stop for a child, another person, or something else, she would not have been able to stop without negative consequences including possible death. There were no warning signs, vehicle pulled out of driveway and brakes were normal. Less than 10 seconds later no more power brakes. The vehicle had the vacuum pump seize which eliminated the power boost and the pump is operated by the exhaust camshaft which also got damaged and needs replaced. Chevy dealership estimated the repair at $2,600. Upon researching the vacuum pump, this is a common failure on multiple GM vehicles resulting in sudden brake loss. The vacuum pump should have been designed with a shear pin, so that if it fails the camshaft does not get damaged. Had the vacuum pump been properly designed and it was the only failing part, the repair cost would be $500 versus $2,600. Also, there should have been a temporary backup system so you would not lose power boost.

NHTSA ID

11749435

Incident

Jun 29, 2026

While driving on the parkway, the engine revved, and then the brakes became hard as a brick. The truck was unable to be stopped. There were no warning lamps or indications there was a problem, it happened suddenly and immediately. Other drivers' and my own safety was at risk because I could not stop the truck. Here is the diagnosis from the GM service center where it was towed to: "After the removal of the valve cover, the tech found the pump in pieces, and the end of the exhaust camshaft was damaged, as presented in the photos. The quote attached depicts all that is being replaced with this repair." The is a know and acknowledged GM defect that has affected well over 3 million vehicles to date. There was a recall issued for some models, but not the Chevrolet Colorado. There are many reports online of other Colorado owners having the exact brake vacuum pump failure, resulting in damage to the camshaft.There is also a class action lawsuit filed in Michigan in early 2026, involving the same brake vacuum pump failure, for some of the models that were not included in the recall. This is an extremely dangerous mechanical failure that GM is aware of.

NHTSA ID

11748403

Incident

Jun 27, 2026

The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving at 30 MPH, the check engine warning light illuminated. A dealer was contacted. The vehicle was taken to the dealer, where it was diagnosed, and it was determined that the camshaft actuator valve needed to be replaced. The vehicle was not repaired. The contact associated the failure with Special Coverage Program: N232430470 (Camshaft Position Actuator Valve Solenoid - Bank 2 (Left Side) Exhaust ); however, the VIN was not included in the program. The manufacturer was notified of the failure and informed the contact to call the NHTSA Hotline for assistance. The failure mileage was 43,500.

NHTSA ID

11746459

Incident

Jun 23, 2026

Mileage

43,500 mi

I am reporting a serious safety defect involving my 2021 Chevrolet vehicle. While driving, multiple warnings appeared including “Service Power Steering,” “Steering Assist is Reduced,” “Service ESC,” and “Service Battery Charging System.” The vehicle then lost steering assist, braking performance became unreliable, and it created a serious risk of crash. The vehicle later shut down completely and has remained inoperable. The failure appears electrical and affected multiple critical systems at once, suggesting a cascading system malfunction. Since the incident, the vehicle has not restarted or operated normally. I have replaced the battery, alternator, starter, ignition switch, brake vacuum pump, ECM, spark plugs, fuses, and relays, but the issue persists. The vehicle still shows charging system faults and severe battery drain, indicating an unresolved underlying electrical defect. I have found numerous reports from other 2021 Chevrolet owners describing nearly identical failures, including sudden loss of power steering assist, ESC warnings, charging system failures, battery drain, and complete vehicle shutdowns. This suggests a possible widespread defect affecting this model year. Given the loss of steering assist, braking irregularities, and full vehicle shutdown while driving, I request NHTSA investigate this issue for a potential safety-related defect and determine whether a recall or manufacturer action is necessary.

NHTSA ID

11740930

Incident

Apr 24, 2025

Brake vacuum pump appeared to fail creating brake system malfunction. Appears determined by mechanics to have seized and caused damage to cam shaft. Driver’s safety issue caused when trying to brake vehicle not functioning. Vehicle was towed to mechanic shop. There were no warning signs of impending failure of system. Note that earlier years for this model may have had recalls for safety issue and malfunction.

NHTSA ID

11738935

Incident

May 18, 2026

2021 CPO Colorado, bought used with 27,000 miles. KEY STUCK IN IGNITION. After 9 months of occasional use the key is, more times than not, getting stuck in the ignition when the truck is turned off. You cannot leave it this way because some systems are still energized. You have to repeatedly put it in and out of park till the key comes out. An associated problem is lock/unlock. The fob and switches will not operate the lock unlock function. It is suspected the park problem makes the vehicle think the vehicle is being operated. It will also not let the remote start function work either. The dealer cleared a code and the problem is temporarily solved. They will not cover it under CPO because they cannot duplicate the problem despite the lock unlock not working at their facility. They ordered a new Gear Shift Mechanism for $800 and I am waiting for it to come in. It has been a few weeks of waiting thus far. It is theoretically possible to have the key get stuck and the doors staying locked thereby trapping all the occupants in the truck. I now carry the spare key if I must use the truck. I can turn the truck back on, lower the window, turn the key till it gets stuck, unlock the door by leaning out the window and then escaping but all the other occupants are still stuck inside till you can get the key out.

NHTSA ID

11731793

Incident

Feb 14, 2026

The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving 45 MPH, the vehicle started hesitating, with several unknown warning lights illuminated. The vehicle immediately started to decelerate and failed to exceed 25 MPH. The contact moved over to the right lane and continued to drive until arriving at an independent mechanic shop. The mechanic diagnosed the vehicle and determined that the fuel pump was detaching due to a fractured bolt connecting to the mounting flange. The mechanic informed the contact of an undisclosed recall with a similar failure. The vehicle was not repaired. The vehicle was taken to the dealer, and it was confirmed from the diagnostic result; however, it was also confirmed that the VIN was not included in a recall. The dealer replaced the fuel pump and the fractured bolt. The manufacturer was made aware of the issue. The manufacturer confirmed that the VIN was not included in the recall and did not provide a reimbursement for the repair. The manufacturer opened a case for the issue. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 90,000.

NHTSA ID

11729413

Incident

Mar 12, 2026

Mileage

90,000 mi

While driving a 2021 Chevrolet Colorado on Interstate 95 in Florida, the vehicle suddenly experienced a loss of brake assist. The brake pedal became extremely hard and very difficult to press. The driver had difficulty slowing the vehicle and had to use the emergency brake to help bring the vehicle to a stop. This occurred on Interstate 95, which is a very busy highway with high-speed traffic. The sudden loss of braking assistance created a serious safety hazard and could have resulted in a crash. The vehicle was taken to a repair shop where the mechanic diagnosed the problem as a failed vacuum pump that broke and damaged the exhaust camshaft and related components. The repair required replacement of the vacuum pump, exhaust camshaft assembly, camshaft actuator and solenoid, and valve cover gasket. The total repair cost was approximately $2,329. The vehicle had approximately 64,348 miles at the time of the failure. No warning lights or prior symptoms were noticed before the failure occurred.

NHTSA ID

11724720

Incident

Feb 21, 2026

Transmission hesitates and/ or slams into gear.

NHTSA ID

11718422

Incident

Feb 17, 2026

There is a coolant leak from the hoses stemming to the thermostat housing. This has been commonly Reported amongst the same vehicles across the country. No damage to the hoses and no accidents to trigger leak. No light triggered. Just leaks visibly under the car

NHTSA ID

11717975

Incident

Jan 14, 2026

The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving at various speeds, the front driver’s side seat belt buckle failed to remain latched securely and independently unlatched. The “SRS” warning light illuminated. In addition, the contact stated that on occasion, the driver’s side seat belt buckle failed to unlatch, and excessive force was needed to depress the unlatch button on the seat belt assembly. The local dealer was contacted; however, the vehicle was not diagnosed or repaired due to the cost. Upon further investigation, the contact associated the failure with NHTSA Campaign: 20V811000 (Seat Belts); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 11,000.

NHTSA ID

11714186

Incident

Aug 15, 2025

Mileage

11,000 mi

The contact owns a 2021 Chevrolet Colorado. The contact stated that while attempting to make a right turn from a traffic light, the vehicle lost power steering functionality, and the steering wheel became difficult to turn. The contact depressed the brake pedal the vehicle started operating as intended. The dealer was contacted. The vehicle was not taken to a dealer or an independent mechanic to be diagnosed. The vehicle was not repaired. The failure had occurred twice. The contact related the failure to NHTSA Campaign Number: 21V213000 (STEERING); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was 45,000.

NHTSA ID

11710659

Incident

Jan 10, 2026

Mileage

45,000 mi

The engine coolant temperature gauge is stuck at approximately 160•F. Cooling fans are running at high speed constantly. The thermostat is stuck in the open position. The vehicle is less than 100,000 miles. There is a “Special Coverage Bulletin N242484760” that has indicated the issue is occurring regularly with my type of vehicle but my specific VIN is excluded due to misplaced parameters. The part is readily available at the dealership in which we are getting the part fixed because so many vehicles of my make and model are having this issue. The cost of the repair will be $1,200 and will be out of pocket because my VIN is excluded but clearly affected by the same faulty system for the coolant. This is a mistake as my vehicle is have the exact same issue as all of the others “covered” in the special coverage. We are seeking an appeal and want to file a complaint that my vehicle is excluded and will have to pay $1,200 where other customers will not be required to do so.

NHTSA ID

11707995

Incident

Dec 1, 2025

In December 2024, at under 50,000 miles, my 2021 Chevrolet Colorado suffered complete brake failure caused by vacuum pump failure. The vacuum pump failure led to irreparable internal engine damage, requiring complete engine replacement under warranty. Sudden, complete brake failure in traffic could have led to a serious accident causing injuries or death to myself and/or others. The component was inspected by the manufacturer and the service advisor at the dealership stated this was "kind of a known issue on Colorados". There were no warning lamps, messages, or symptoms of the problem prior to the failure. This vacuum pump failure is documented in GM Technical Service Bulletin #21-NA-268, which addresses vacuum pump failures on other GM vehicles. The identical failure mode in my 2021 Colorado demonstrates this is a systemic manufacturing defect, not an isolated incident.

NHTSA ID

11705918

Incident

Dec 31, 2024

The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving at an undisclosed speed, the vehicle shuddered and failed to decelerate as intended while the brake pedal was depressed. An unknown message was displayed. In addition, the contact stated the vehicle failed to respond properly while the accelerator pedal was depressed. Upon inspection, the contact noticed an abnormal engine oil leak. The vehicle was towed to the residence. The vehicle was later towed to a local dealer, where it was diagnosed with an exploded brake booster and metal shavings inside the engine. The vehicle remained at the local dealer unrepaired due to the cost. The local dealer could not guarantee that the repairs would correct the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

NHTSA ID

11701525

Incident

Nov 2, 2025

Mileage

70,029 mi

Starting my 2021 Chevy Colorado Zr2 in the morning and noticed the "service power steering, drive with care message. 40,000 miles. No power steering. This would clear after leaving vehicle sit and restarting. After reading many articles and found the recall notice for 2015 colorados. Based off of postings I didn't drive it due to the possibility of losing power steering while on the highway, which had happened to several people after restarting and clearing the error. I think GM never corrected the issue and is present in newer models. I took my vehicle in for the repair of the power steering gear and it was very costly. I feel GM should issue another recall, specifically with the possibility of losing power steering on a crowded highway is a major safety concern.

NHTSA ID

11699539

Incident

Nov 7, 2025

This is the fifth vehicle with the 2.5l engine that has experienced vacuum pump failure resulting in a broken exhaust camshaft. Without warning, drivers have experienced a complete loss of brake function as a result of the vacuum pump failure.

NHTSA ID

11698873

Incident

Nov 7, 2025

Today while driving my brakes got super hard. Had to use my entire weight to get it to stop and still was moving forward. Had to use the emergency brakes and a prayer. Luckily I wasn’t on the highway or it would’ve been a deadly accident. When I opened the hood the camshaft sensor was broken loose. Mind you I had taken the truck to the dealer a while back for a rattling noise at 1500 RPM and they couldn't figure out the issue. They replace the catalytic converter under warranty. But kept making the same noise around the same RPM. Obviously it wasn't the converter. My truck has 43,136 miles only. 2021 Colorado 2.5 Luckily I’m alive today but this must be taken care of as soon as possible. I read a lot of Colorado’s seem to have the same issues. Needs a recall.

NHTSA ID

11696234

Incident

Oct 28, 2025

I was on my way home from work and I was on Highway 16 in Washington state near Port Orchard and I was driving 64mph and all vehicles in front of me were all breaking slowing down pretty fast and when I pressed down on my brakes the brakes were totally stiff I could not stop and had to drive on the side of the road and passed 20 plus cars and was finally able to come to a stop. If I had no where to go I would’ve hit the car in front of me at a high rate of speed potentially causing a major or deadly accident. They were working fine 5 minutes before that. I think it is a major issue that will cause fatalities in the future if this problem isn’t taken care of. I’ve never had a vehicle do this and I’ve been driving for 38 years.

NHTSA ID

11695149

Incident

Oct 22, 2025

Beginning at approximately 80,000 miles I began to notice I could not remove the key from the ignition switch at times. Turning the vehicle on and off, shifting repeatedly into park, turning the steering wheel and pressing the brake had no effect. I now have 90,000 miles and the problem occurs about half of the time when trying to exit the vehicle. It is dangerous to leave the vehicle with the key still in the switch. I called the dealership and they said they were familiar with the problem and if it was like others they had encountered, it would require changing out the shifter mechanism. I took the Colorado to the dealership on 9/10/2025 and the diagnostics showed that it was a switch problem in the shifter. The repair was $720.15 which I had completed. The shop people said it was a fairly frequent issue with that model and some others

NHTSA ID

11686850

Incident

Nov 1, 2024

The key does not release when in park! I have to adjust the steering wheel and gear shift multiple times to get it to release. This has been going on for a while and the truck only has 27,000 miles. I've called multiple chevy dealers (including the one I bought it from) they all want a 250 diagnostic fee! This should be under warranty. This problem is dangerous. I have seen I am not the only one having this issue. This issue needs to be investigated and recalled!

NHTSA ID

11685970

Incident

Sep 9, 2025

I own a 2021 Chevrolet Colorado Lt Extended Cab 2WD. The rear differential has failed prematurely at 70000 miles. the failure caused loud whining/grinding noises, vibration, and unsafe driving conditions. After researching online, i found many other 2021 Colorado owners reporting the same issue with rear differential failure, often at relatively low mileage. This indicates a widespread defect in the differential assembly. There are existing GM Technical Service Bulletins (20-NA-034, 20-NA-156) related to axle/differential noise and machining defects, but GM has not issued a recall or extended warranty coverage. Differential failure can lead to loss of power to the wheels or lockup while driving, which poses a serious safety risk. I request that NHTSA investigate this issue and require GM to issue a recall or Special coverage adjustment for the affected vehicles.

NHTSA ID

11681108

Incident

Jun 23, 2025