2018 Chevrolet Colorado Complaint Log

7.5 amp to fuel injectors has blown 2 times unknow reason causing loss of power 1st time on country road then 2nd time on a highway it's a common problem from the Chevy Colorado forums regarding the 2.8l lwn engine

Luggage and shudders at cruise speed, seems like auto transmission is coming apart. Paid $500 for the trans flush the service bulletin suggests but didn’t help, shop quoted a $8000 replacement on a vehicle with 60k miles. This should be a recall

transmission is not shfting properly.Truck losses speed and shutters when trying to accelerate.Difficulty climbing hills.Especially dangerous when merging with traffic.Only 33,000 miles on my truck.GM should recall to address this much complained about issue.

All the sensors seem to not be functioning correctly. Doesn't tell me the right measurements for the wheels, gas, over heating. Right front passenger door locks/unlocks when it wants. It chokes up when trying to accelerate. Theres a rattling noise that comes from under the car. First time I took it to the dealership, they stated it was a bolt that had come loose on the exhaust pipe. They placed a new one which lasted a year and a half and now its back to making the noise. I took it again to the dealership, this time they claimed they couldn't find anything. My airbag sensor keeps coming on constantly. My fuel sensor claims 116 miles one moments and 5 or 6 minutes later, it says I have 50 miles. My car was over heating and low on Anti-freeze, the car never notified it was over heating.

Highlighting a materials defect with the rear crankshaft reluctor ring on the 2.8 LWN Duramax, installed in the Army Infantry Squad Vehicle and the 2015-2023 Chevrolet Colorado, from which it is based. When the ring delaminates, due to age, the vehicle engine shuts off and no start, rendered dead lined, as the ECU can no longer "see" the crank position. Requiring the transmission to be removed to rectify the issue.  I was pulling a trailer up a hill on the freeway when my truck down shifted, in an effort to slow down for a bus that was merging unexpectedly and the truck died at speed. The increase in RPM initiated an unplanned, instant disassembly of the ring due to cracking on the material and increased centrifugal force, shutting off the engine without warning, at speed. Again, just dead stick to the shoulder, towing a trailer, on the freeway. That could have been bad... Had truck towed to GM dealer, for a month-long repair.

Transmission oil leak with only 60,000 miles just bought from a dealership as is 3 days ago and was not informed of the issue

Saturday July 12, 2025: My truck got an ACTION Required notice: "Exhaust fluid Quality Poor See Owners Manual NOW 100 miles until 65MPH Max speed" I turned around and returned home to get a different vehicle to do what i needed to do. Monday, July 14 My mechanic hooked it up to the vehicle scanner and got the code information: "P11D5: NOx Sensor 2 Exceeded Minimum Learning limit (Symptom 00) - Current DTC, Test failed since DTC Clear, History DTC, Test not passed since power up, warning indicator requested" So we ordered and replaced the Sensor, still the action required message remains... I am now down to "64 miles to 55mph Max Speed" and my dealership is telling me there is nothing more that can be done, unless i want to pay up to 5k for additional repairs that in their experience may NOT fix the issue?? I've googled the issue and MANY MANY people complain of this issue and there appears to be no actual fix for it.... GM tells me that im out of luck and they have no information regarding a fix or remedy for the situation!

Clunking sound coming from rear end upon normal acceleration. When I take my foot off of the brake pedal, and depress the gas pedal, A loud clunk appears to come from the differential. If I coast first and then depress the gas pedal, it is not as pronounced. When you slow down to make a corner, and resume speed exiting the corner it is also pronounced. It should be noted that I am a safe adult driver (safe driver module installed in truck) and have 35,800 miles. My truck has always been serviced by my Chevrolet dealership; I am an older gentlemen and never drive recklessly. I'd like to think the rear differential should not be making a clunking sound at this point in its history

The contact owns a 2018 Chevrolet Colorado. The contact stated that upon arriving to his destination, he observed gasoline leaking underneath the vehicle near the fuel filler neck. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel pump seal. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 162,000.

Odometer Fraud. The contact purchased a 2018 Chevrolet Colorado. The contact stated that while attempting to service the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was approximately 47,000 and at the time of registration, it was discovered that the mileage was 162,000.

The problem started two months ago, with a loss of engine power and a stability track warning on the dashboard. This happened occasionally while driving, often going away on its own by turning off the vehicle. Two weeks ago, I took it to Chevrolet for an inspection. They did a general inspection and said it was a factory defect. Now, the vehicle has the problem constantly, and there are times when it's undriveable. That's a risk for me.

The ignition switch will frequently lock when turning off and not allow the electrical system to fully turn off and prevent you from removing the key. It happens randomly but has been increasing in frequency.

The contact owns a 2018 Chevrolet Colorado. The contact stated that while his daughter was driving at an undisclosed speed, the vehicle lost power and the driver observed a high pitch sound coming from the engine compartment. The check engine warning light was illuminated. The vehicle was steered to the side of the road and turned off. The vehicle was not able to restart. The vehicle was towed to a dealer where it was diagnosed and determined that the high-pressure fuel pump had fractured and there was a fractured bolt inside the cylinder head that needed to be replaced. Additionally, diagnostic trouble codes: P0089, P228C, and P2c1F were retrieved using a DTC machine. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 90,369.

P2738 Pressure Control Solenoid Valve 6 Control Circuit Low Voltage. Whenever you drive, the transmission will go into limp mode every now and then. It will say low oil pressure and throw another code of P0700 MIL Request From TCM. This is a common issue that I have researched and would like to know a way forward. I've only had the vehicle for 6 months. Within city limits as long as you don't push the accelerator too much (50mph within 2 minutes) it runs ok until the vehicle comes to a stop. Also, when you get on and off of the freeway, same issues make it go into limp mode in which you will have to shut the truck off and start up after a few minutes to reset.

Touch screen not responsive, apple carplay unavailable can’t connect phone, will randomly tap apps and puts calls on hold. Will flip pages on its own and even turn the back up camera on when driving down the road

Fuel system leak and yes, it is available for inspection. My safety was at risk while I was driving the truck and smelled a very strong odor of gasoline enter the cab of the truck while I was driving with the windows rolled up. I immediately stopped the truck and got out and noticed flames coming out from underneath the bed in front of the left rear wheel, then the gas tank ignited shooting flames out like a flame thrower. The Fire Dept and the insurance company inspected it, and it was deemed a total loss. There were no warning lamps, messages, or other symptoms of a problem prior to the fire. Here is what I found on the internet about this truck on the internet. The 2018 Chevrolet Colorado had one recall for a high-pressure fuel pump that could detach from its mounting flange. The recall began on July 2, 2018. What was the recall for? •The high-pressure fuel pump could detach from its mounting flange •The pump could damage the high-pressure fuel line What was the recall number? •The National Highway Traffic Safety Administration (NHTSA) number for the recall was 18V-358 What did GM do to fix the issue? •GM notified owners and dealers replaced the high-pressure fuel pump and high-pressure fuel pipe for free How can you check if your vehicle is affected? •You can check your vehicle for open recalls by: oInputting your Vehicle Identification Number (VIN) at asburyauto.com oInputting your VIN at my.gm.com/recalls •2018 Chevrolet Colorado Crew Cab Recalls & Safety Notices Summary: General Motors LLC (GM) is recalling certain 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, Malibu and Colorado an... Kelley Blue Book •2018 Chevy Colorado Problems & Complaints One recall has been issued for the 2018 Chevy Colorado and involves the poor attachment of the high-pressure fuel pump to the fuel...

Key can't be removed when the truck is in park. Locks go up and down when vehicle is moving. Transmission stuck in 3rd gear. Stabilitrack and traction control indicator lights appear on dashboard. Exhaust brake and traction control switches don't work.

At around the 105k mile range the truck would make a gear whine sound and shudder between gears at around the 50mph range, speeding up or slowing down a bit would fix the issue. By 110k miles the truck was making the gear whine sound at speeds over 10 miles an hour studdering at every gear change. I took it to a mechanic who said there were no TSB's for the truck and suggested doing a trans oil dump and filter replacement. The trans filter was replaced, and 7 quarts Mobil1 LV ATF blue label oil was put into the transmission. The studdering has reduced to just at the 50mph range but the gear whine sound has if anything gotten louder.

I was ran off the road and hit a tree line in which a downed tree went through my windshield. The airbags failed to deploy. If I had not been wearing my seatbelt, I could've been decapitated

The power steering quits working intermittently. It has always been extremely cold when it happens. So far, it has only happened when the vehicle has been started, then driven. Turning the ignition off, then on, does not fix the problem. So far, it eventually starts working again at a later start up. When it happened before, the problem had resolved itself when I took it to the dealership and they could not determine the cause & simply replaced the battery. Losing power steering is definitely a safety issue if turning a corner, etc., when it goes out. The last time, I drove 45 miles directly to the dealership and they put a code reader on it while it was happening. I'm taking it to them for repair(?) tomorrow. There have not been any inspections to-date. The "service power steering" warning did show up when the vehicle was started.

The Stibilitrack in the truck went out just after 20 minutes of driving in 34 degree rainy weather at 65 mph. Found out that it was the passenger front bearing reluctor had chipped away, which is what the wheel speed sensor reads. Once one those go out, you lose Stibilitrack and ABS. I believe that this is a significant safety issue, and a poorly engineered/designed system. The rear system reads gear which is what should be in the front should have as well, not a "magnetic ring". This should be fixed so that noone gets injured or killed. It's also a waste of consumer money that you have to change out an entire wheel bearing hub assembly to fix the issue. Shame on the company. In the photos, notice that half the black ring (the reluctor) is missing.

Rear back up camera at night is extremely bright and blinding to driver. Makes it useless at night and dangerous. There's no way to lower brightness setting for night time back up moves. I've seen many complaints on this. We owners shouldn't have to pay to have this fix.

In [XXX] I took my truck in for oil change, inspection and 3rd complaint of shaking, and shuddering, lurching at a stop, they told me my transmission was broken, they would have to order the part and their was no ETA on when they would get it. I was told there were NONE in the tri-state area from another dealership. We are a one (1) car family and Jim Trenary Chevy said they don’t give out loaners, therefore we had to rent a car at 370.00 a week. Here it is January 15 and we are STILL renting a car. They finally got the part sometime last week, but WE NEED HELP! We have spent over 5,000 in rental car fees and GM will not reimburse us until we return the rental car, even though we have paid cash every week, and we’re have had to borrow from my husbands future paychecks. WE ARE BROKE. We have to pay the deductible of 500.00 when it is finally fixed, plus, during the snow storm last week someone side swiped my rental car, and I have to give Enterprise 1500.00 when I turn in the car for my deductible from insurance. I read there is a 65 million$ law suit pending to GM for these faulty transmissions, yet they don’t feel responsible to pay our expenses for something that IS THEIR PROBLEM, NOT OURS, but they have made it my problem, and I am shouldering all the financial burden of this, their faulty transmission. WE NEED HELP, We are now broke and now can not afford to pay for the rental, or our repair deductible, or our car payment. We don’t make that kind of money. My husband is the only one that works full time. WE NEED HELP, and no one wants to listen or seems to care. WE ARE BROKE! Thank you for listening. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

transmission shudders from 20 to 60 under light acceleration. took to dealer and said that needed different oil. dealer stated that a common issue with these vehicles. Cost $500 to replace oil to proper oil.

Key cannot be removed front ignition. Put in park but does not release key . Unlocks doors but does not lock steering wheel or release key . Have to do several tricks to get key loose . No one in repair community seems to be able to fix or understand how to repair.

I detected the smell of fuel while the vehicle when it was both not running and running. I brought the truck to Banks Chevrolet in Concord NH. The high pressure fuel pump detached from its mounting flange, resulting in damage to the attaching high pressure fuel pipe causing a constant fuel leak. Dealer replaced the high pressure fuel pump and high pressure fuel pipe to resolve the concern. There is a NHTSA recall that my vehicle should have been included in, 18V358000. The GM recall number is 18188. I paid out of pocket (~$1500) to fix this safety issue when it should have been fixed initially with the recall.

At approximately 6:15am while driving at approx 45MPH on a surface street on the right lane, I noticed an alert on the dashboard regarding the PSI of the rear driver side tire had 0 PSI of pressure and simultaneously heard the thudding sounds of a flat tire. I neither heard, nor felt any impact and there were no potholes in that section of road. I pulled over and called for roadside assistance to replace the tire with my spare. I noticed a large tear from the tread nearly all the way down to the bead along the wall of the tire. Tire M+S 255/65 R17 110T. When the tech arrived he noted the tire was new (purchase and installed 42 days earlier). I asked if he's seen this before as I hadn't, and he said he'd only seen it when a driver hit a curb, which I had not. In the early evening I took the tire back to the shop where it was purchased and before even looking at the tire they informed me I "must have hit something" and will just need to purchase a replacement. After they inspected the tire at my insistence, they concluded I must've hit something but I believe it was a case of confirmation bias. I pointed out, and they did not refute, that there was no other damage to the tire, no damage to the rim, and no damage to the vehicle. The subject tire is still in my possession and available for inspection.

See attached document for complaint.

See attached document for complaint.

What component or system failed or malfunctioned, and is it available for inspection upon request? It appears to be a piston failure, as there is compression and diesel in the crankcase. Engine is still in the vehicle but once removed it will be available for inspection if needed. How was your safety or the safety of others put at risk? Power loss on a busy highway requiring lane changes without available engine power is dangerous. Has the problem been reproduced or confirmed by a dealer or independent service center? Not yet Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? P0266 code and engine light set immediately after the failure. But there were no warnings prior

shutter or vibration issue regardless of speed even when cruise control is active. took it to the dealer and they said the wrong fluid was installed at the manufacturer. also told me my extended warranty would not cover it since it was not a mechanical issue. i saw that GM has issued a service bulletin 18-NA-355. however, i have yet to discover from any online account that this fixed the problem. why is there no recall for this common issue.

The vehicle stuttered upon acceleration between 20mph and 35mph. After the 2018 Chevy Colorado was taken into the Chevy dealership for inspection, the torque converter failed at roughly 76,000 miles. A bad torque converter can potentially cause an accident. It can lead to engine revving issues, sudden speed changes, which can be dangerous while driving. The torque converter failed and left metal shavings in the transmission causing the transmission to need replaced as well. This was diagnosed by the Chevy dealership and has a repair ticket of over thirteen thousand dollars. ( $13,000.00 ) which most people can't afford to absorb. After a quick Google search, this appears to be a common problem. There should be a recall to fix this issue.

“Service trailer brake system” won’t turn over but will crank Transmission shifting very hard around 3rd and 4th gear

Master Cylinder leaked into booster an brake fluid got into vac pump. Broke the pump an damaged the end of the cam. Was told metal pieces of cam that broke off where in motor. Had to take a 3600 dollar loss for selling less than what was owed. Car vibration on bad cam. But brakes were repaired with a new pump.

The issue is with the transmission not shifting as should. The issue is called Shuddering and seems to be a know isuue. If you google search issues with 2018 Chevy Colorado this is the first issue that comes up. This could cause an accident. If gears aren’t shifting properly and I cannot excel as needed I could be rear ended or cause me not to be able merge into traffic if once accelerating it shudders and causes my speed to slow. I think there should be a recall for this issue.

The power steering on our 2018 Chevy Colorado fails intermittently during driving.

Truck bought in United States for use in US. All dash displays ( child or person in back seat or passenger seat, and gauges, emergency or vital messages, warnings etc) are in a foreign language. I only speak and read english. In addition, may go into mode where it changes channel and volume every few seconds which is distracting. Chevrolet dealer (Valmark) says they want 100-200 usd to diagnose and 2000.00 to replace. Reset did not fix. Vehicles for US should be in common language. Chevy should diagnose and repair free of charge. Screen is locked/frozen and cannot be accessed. Spoke with Ian at chevy hdqtrs who said diagnose fee is up to dealer, i will have to pay. Chevy forums say common problem and chevy won’t repair.

The key will not come out of the ignition when the vehicle is in park. This presents a safety issue where the driver cannot leave the vehicle because the key is stuck in the ignition. The problem has been reproduced by the dealer and found to be a faulty transmission control assembly. The faulty transmission control assembly has now been replaced twice on my vehicle, once at 19,000 miles and again at 33,000 miles. There were not any warnings or messages, just one day the key won't come out of the ignition.

The driver side seat belt does not immediately latch when placed in the seat belt housing. To secure the seat belt the driver must keep placing the seat belt latch into the housing multiple times in order for the latch to secure. When brought to the attention of a local Chevrolet Service Center, their response was to pay >$400 to replace the seat belt housing (near the seat). The service center is Lamb Chevrolet in Prescott, Arizona.

When accelerating there is a shake. From diagnostic it seems there is an issue with the torque converter.

The check engine light came on because the coolant fan runs for a while after vehicle is shut off. This ended up being due to a thermostat failure. I did have this repaired in Novemver 2023 but what is interesting is that one of my sisters, who also owns a Chevy Captiva had this same thing repaired earlier in 2023 and now my other sister who owns a Chevy Equinox has this same issue now, 2/5/24, and will look into having it repaired. Is this just a coincidence or is this a defective problem that the manufacturers should address?

The beginning of November my driver side door would not open. There was no warning, and nothing happened to cause this. I took it to the dealership. For $161.00 they told me I would need $980.00 worth for parts, which I had to pay upfront, so they would order them. Needless to say there is only one mechanic that is able to do this repair, so I’m still waiting. My appointment is on January 31. I feel this has been a big hazard, do to no fault of my own. I’m just Grateful that [XXX] I can climb through to still use the truck. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

At the beginning of November I was out shopping, when I returned to my vehicle, the driver side door would not open. Luckily I was fit enough to crawl through from the passenger side. I promptly called the Chevy dealership for an inspection/ repair. I feel this was an emergency situation. I didn’t even want to think about what would happen if I were in a vehicle accident, and couldn’t get out, or, no one could get in. I was able to get an appointment at the dealership for November 16, 2023. My Chevy is always parked in covered garage, there was no warning sign of anything going wrong. They checked it at my appointment, but because they couldn’t open it, they decided to order all the assembly parts, which I had to pay for ahead of time. My next appointment for the repair wasn’t set till January 31, 2024. I never knew how important a functional door would be. Very inconvenient, and dangerous.

While driving my 2018 Chevy Colorado with 42000 miles I noticed my vehicles steering would get stuck while making turns on the highway and local streets. The problem was intermittent and was getting worse. I didn't receive any warning lights or codes for this problem but realized I had to bring it to a Chevy dealer to try to resolve the issue because I was afraid to drive it any longer due to steering possibly locking up completely. The mechanic at Island Chevy in Staten Island said the electronic rack and pinion steering gear failed and I had to replace with a new one. The cost of the repair was $2700 dollars. I was very shocked by the price due to age of car, the low mileage and never doing any off road driving. I did have another mechanic look at this problem before Chevy did and couldn't pinpoint the exact issue at the time I brought it in. The mechanic told me to bring it to Chevy to hopefully pinpoint the problem and see if there were any recalls or warranties on it.

Transmission is slipping and vibrates while driving. Delayed acceleration.

He wiring harness to the 4wd kept coming on which wouldn’t allow me to ingage. Mountain Chevy citified mechanic found a chafing on the wiring harness. After filing it my truck started to light up like a Christmas tree, Stability service, trailer brake service, Locker service, Power streering service and they done turn off. Which is caused by more chafing wires that are to close to components of the engine bay getting to hot. Now my power steering turns off and when driving the truck it kicks on and make me loose control of the vehicle. Big diffect on Chevys manufacturing this vehicle. I’m not able to drive it and now they keep telling me that they don’t have the part or can’t find it.

While driving, there is noticeable “shudder” that seems to feel like an issue with the transmission when it is shifting (automatic transmission). Research online shows this to be a consistent issue and concern with many owners of the 2018 Chevy Colorado. Having this shudder has not had a solution by the several mechanic shops I’ve been to. Nobody seems to know what is causing this issue, but with many owners having this same problem there must be something that Chevrolet can do to resolve this issue. We bought the vehicle brand new in 2018, and it is now paid off, but this shudder while driving has happened since we have owned the vehicle. It seems to be more prevalent while driving between 30 mph to 60 mph. The shudder happens during ever drive we take. We have the vehicle maintenance performed on all of the recommended intervals for oil, fluids, tires, brakes, etc. This is definitely something that should be a recall.

The braking system did not engaged as expected when suddenly braking in freeway commute. This resulted in a vehicle collision. I believe this issue put myself and others in danger. There were no warning lamps.

The vehicle will not stop unlocking itself. even while moving.

The flapper just inside the fuel filler pipe has broken loose, allowing water or dust to enter, potentially causing engine failure.