Automatic Emergency Braking Problems of Chevrolet Colorado - part 1

Traveling approximately 45 mph on a main road and brakes automatically engaged causing vehicle to abruptly stop. This due to faulty automatic emergency braking system that has allegedly already been repaired with a software update. My child and I were in the vehicle and had another vehicle been directly behind us or even oncoming we would have likely been involved in a collision. There was no warning that came on other than the red flashing lights and beeping that engaged the same time as the automatic braking. I will likely have to go to seek medical care for soreness in my neck and back from the jarring of my body from the abrupt stop. Waiting to hear if daughter is feeling any pain as well, as mine onset through the day after the incident.

See all problems of the 2023 Chevrolet Colorado 🔎.

There have about 4 incidents where my vehicle has engaged the automatic emergency breaks while I’m driving, even though there are no cars around me close enough to cause that reaction. Called 911 on most recent incident to get medical evaluation to check chest from seat belt sudden locking.

See all problems of the 2024 Chevrolet Colorado 🔎.

Recall was performed on truck about a year ago for the pedestrian collision automatic braking. Today the truck locked up the brakes in traffic and there wasn’t a pedestrian in sight. I believe the recall didnt truly fix the issue, as it has given false alerts before without applying the brakes.

Radiator inlet hose leaked which caused low coolant. Check light alerted. Replace the hose. Parts are on backorder. Also had a recall on the emergency brake assist. I took this in for the recall however the alert assist still goes off.

On Sep 14th 2025 with km 41959km, after turn on my Colorado, after I filled the fuel tank, I had driven more of 50 min, a message appears in the screen control: failed braking system 100km/h max velocity and a second message appears: provide service to esc. Then turn off the Colorado, wait some seconds and turn on again, no messages appears. So I continue driving normally until Dec 21st 2025 with km 47200km driving on a boulevard, I did stop two times due to traffic, automatic start/stop activate, in the second stop when start on again same message appears: failed braking system 100km/h max, I felt the brakes not responding, my Colorado stopped over a greater distance. If I hadn't maintained a safe following distance, I wouldn't have been able to stop in time and I would have crashed into other vehicle. I arrived on home safe but nervous. At next day, Dec 22th turn on my Colorado and appears same message, km 47245km I turned off and tried turn on again but it not turn on, battery low message appeared, then I had to have my Colorado towed to the car dealership. It is on revision waiting a diagnosis. I hope you can analysis this issue. Thanks.

See all problems of the 2017 Chevrolet Colorado 🔎.

I was driving down a hill and hit my brakes and the pushed back against me and then went right to the floor with minimal braking. I got an error message on my dash that said “brake system failure- do not exceed 62 mph” luckily it was early in the morning and nobody was in front of me. All of the lights were green and between the engine braking and the little brake power that I had I made it up the hill (about a mile) to the chevy dealership. I got an error notification the day prior that said there was an electrical error and my check engine light came in. I drove straight to the dealership but they couldn’t do anything since it was 4:30 and later than work hours so they made me an appointment for the next day and let me go. They told me later that day that it was an issue with the master cylinder (which with some research I found that there is an active lawsuit against this issue) I was issued a loaner vehicle with a crack straight across the entire windshield (it was all they had available and I was told it would be “okay” so I’m fine with that).

See all problems of the 2025 Chevrolet Colorado 🔎.

In December 2025 I was driving my 2022 chevy Colorado with 2. 5 liter all of a sudden with no prior warning or lights I have an extremely hard brake pedal could barely stop I wasnt far from home when I pulled into drive I left it running to check brake fluid saw some smoke . I pop hood and saw brake fluid full but smoke coming from the back of motor I couldn't tell where so I walked around to look underneath and saw oil all over. I shut engine off and had towed to chevy dealership diagnosis vacuum pump failure with engine damage.

See all problems of the 2022 Chevrolet Colorado 🔎.

Vehicle: 2023 Chevrolet Colorado trail boss mileage: approximately 14,000 miles I am submitting this complaint because the abs braking system on my vehicle activates unexpectedly and causes a temporary loss of braking when driving over uneven pavement. When braking over potholes, bumps, or rough road surfaces at low to moderate speeds, the abs system engages even though traction is available. When this happens, brake pressure is reduced to the point where the vehicle does not slow as expected. The abs warning indicator flashes briefly, and there is a noticeable delay before normal braking resumes. This behavior has occurred multiple times in normal driving conditions on city streets, not during panic stops or slippery conditions. The issue feels most pronounced when approaching intersections or slowing in traffic over broken pavement, where consistent braking is critical. The momentary reduction in braking force significantly increases stopping distance and creates a safety concern. The vehicle has low mileage, has not been modified, and is maintained as delivered from the manufacturer. There are no warning lights remaining on after the event, and the issue appears to be related to abs calibration rather than driver input or road conditions. This does not feel like normal abs operation and gives the impression that braking is interrupted at the exact moment it is needed. Given the frequency and repeatability of the issue, I believe this represents a potential safety defect that could contribute to a collision, particularly in urban driving environments with uneven road surfaces. I am submitting this complaint to document the issue and to request that the abs braking behavior on this vehicle be reviewed for safety.

I have had 3 separate occasions where the automatic emergency braking has engaged with nothing in front to trigger it. Each time was one a busy section of road, two of those times I had traffic behind me nearly causing an accident.

On the day of purchase, while driving on a freeway, the vehicle would not accelerate. The rpm's went up, the engine revved, but the vehicle acted as if it was in neutral. These vehicles will not accelerate if they think the brake pedal is also being pressed. The brake was not being depressed. As I was pulling the vehicle to the side of the road, suddenly it allowed me to accelerate again, and I continued with no further issues. One week later, with fewer than 200 miles on the vehicle, upon starting the dashboard showed alerts to service esc, service brake assist, service trailer brake system. The abs and traction control lights also came on. These are all systems designed to prevent loss of control, and all failed without warning. A dealer service center diagnosed this as a known problem with a faulty master cylinder, on several models built over a period of several months.

Chevrolet Colorado slows down for no reason.

Forward collision braking activated for no reason and will hard brake. Has done it in the middle of an empty parking lot as well as when driving 65 mph down the highway, twice. No major injuries happened either time other then sore necks and seatbelt marks. On 2 incidents only the driver was in the vehicle, the other incident consisted of the driver, front seat passenger and 2 children in the back seat. The vehicle has been inspected by dealership. The vehicle now has brake and router problems, which the dealership has said is from hard braking. The vehicle has a bad vibration when applying the brakes.

Driving on the highway speed limit 65-70 my truck started decelerating and breaks got hard and could not use break. Had to get home using emergency petal break and drive. My truck is only 2020 model for this type of problem. Want to see if I can get this fixed with the manufacture defect warranty. Took my truck to a chevy dealer and they are saying it can be a faulty vacuum pump.

See all problems of the 2020 Chevrolet Colorado 🔎.

Abs check engine light came on after initially taking the vehicle in because of the brakes feeling weird and making noise. This similar issue has been experience by multiple users reported on a chevy Colorado group page on facebook to include 2 cases of individuals, one with a Colorado and another with a gnc canyon, both gm vehicles, that had their brakes fail while operating the vehicles. This was a concerning issue because, in my case, while I drove the vehicle, I was able to punch the brake pedal all the way to the floor while the vehicle was slowing down. The vehicle and part were inspected about 3 different times with the final time, and with video proof of an odd noise it was making, which then caused the dealership service department to actually check the brake pump which then they found to be faulty and needed replacing. This also took about a month and a half of wait time because the part was on backorder. I also spoke to Chevrolet directly where they did not seem to be aware nor cared at the fact I explained to them many owners experienced this same issue and did not acknowledge my concern for safety of the vehicle itself.

While driving in heavy and slow moving traffic at approximately 15 mph, the vehicle in front stopped. The forward collision and automatic emergency braking failed to activate. These safety features are not a replacement for active driving attention, but if they properly function and activate, they could have prevented the rear end collision that occurred.

Was driving approx 30 mph down road when alert/light flashing for crash detection. At the same the brakes slammed on causing the wheel to pull to the right and pulling the wheel from my hands. This sudden stop was abrupt enough to leave seatbelt mark on shoulder. There was no car in front or behind me in my lane of travel. There were no people on either side of the road walking. I have had the light go off a few times with the bell but no sudden braking until an update was run last night. Which according to the chevy recall was for ecm issue. Recall software update n242452130. I called the dealer , spoke the service manager mike and told him what happened. He tells me him and his wife bought a 2024 chevy equinox that did the exact same thing. Ok, how is that supposed to make me feel better? the braking was violent and if it happened in city traffic I have no question in my mind that would have been a [xxx] crash. Every single time there is an update push there is a problem. This has been the worst. After looking up the VIN does not show part of the original recall from your agency. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The collision avoidance system quit working. The warning light was displayed on the instrument cluster but no other warnings were sounded. After taking it to the dealer for repairs, they got the light to go out by downloading another software version, but it did not fix the problem. It only removed the light. The truck still would not give a warning when approaching another vehicle too fast or get too close at certain speeds. The dealer has kept it so far a total of 12 days and have yet to fix the problem.

1) all the sensors on the truck relating to the auto emergency breaking, pass sensors, cruise control etc are malfunctioning, truck was at 10,000 miles at the time and brand new. 2) this feature contributed to an accident on Jan 14 2025. I could not see because of the sun and rear ended the car in front of me. 3)the dtc report on the truck came back and stated 6 errors relating to the systems and sensors to include a data memory loss. 4)took in for servicing at the dealership and they refused to touch the issue. Gm is inspecting the truck Feb 13. 5) there were warning indicators however I though it had to do with ice blockage from a snow storm. That morning I cleaned all the cameras off and did not immediately notice it and assumed it went away. It seems the the warning does not immediately come on takes approximately 1-2 minutes. There is no differentiating a software-servicing issue with a camera blockage.

The contact owns a 2024 Chevrolet Colorado. The contact stated while driving 10 mph and approaching a stopped traffic, the contact stated that the sun temporarily blinded his vision of the roadway. The contact depressed the brake pedal, but the vehicle failed to respond and crashed into a stopped motorcycle, causing the motorcycle and the motorcyclist to fall to the ground. Additionally, the contact stated that the vehicle was designed with the forward collision avoidance: automatic emergency braking (aeb) system, which failed to engage as designed. The motorcycle rider was able to escape the scene, while the contact's vehicle continued to move forward and to drive over the rear end of the motorcycle. The motorcycle was damaged and could not be ridden. The motorcyclist sustained physical pain and received first aid from the ambulance; however, the motorcyclist declined medical assistance and was picked up by his girlfriend. The contact did not sustain any injuries. The air bags did not deploy. The check engine warning light illuminated after the crash. The contact stated that the front end and the undercarriage of the vehicle were damaged. The contact was able to drive the vehicle from the scene. A police report was filed. The vehicle was taken to the dealer's auto body shop, where an assessment of the vehicle damage was being performed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 4,700.

The contact owns a 2023 Chevrolet Colorado. The contact stated while driving approximately 5-30 mph on several occasions, and occasionally while reversing out of a parking spot, the forward collision avoidance emergency automatic braking system unintendedly activated and stopped the vehicle. The contact stated that several undisclosed warning lights were illuminated. Additionally, the check engine warning light had illuminated 30-35 days after purchasing the vehicle. The vehicle was taken to a dealer to be diagnosed. The contact was informed that the front collision wiring system, the electronic control unit, and the evaporative emissions control system needed to be replaced. The contact stated that the vehicle was possibly already repaired under NHTSA campaign number: 24v133000 (electrical system, forward collision avoidance); however, the failure occurred. The vehicle was taken to another dealer, grieco Chevrolet of delray beach (2605 s federal hwy, delray beach, FL 33483) where it was diagnosed and determined that the front collision wiring system, the electronic control unit, and the evaporative emissions control system needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 8,300.

In January of 2024, my husband was driving our 2023 Chevrolet Colorado. He was pulling onto our street driving approimately 5 mph. The vehicle suddenly stopped for no apparent reason. At this time, we did not file a complaint because it was a minor incident and no one was hurt. We brought the vehicle into the Chevrolet dealership for a safety recall for the front cameras . On [xxx] I was driving at 830am on a highway in the fast lane. No other vehicles were near me in my direction. No one was in front of me, besides me or behind me. I was driving approximately 57mph on a very clear and calm morning. My 2023 Chevrolet Colorado came to an abrupt stop for no reason at all. No lights flashed on my dashboard, the vehicle did not shake, warning me that I was shifting lanes (because I was not), nothing came on at all. I was given zero warning that the vehicle was abruptly stopping. I have severe whiplash and have been undergoing treatment for this trauma. No police report was filed because there was no damage done to the vehicle. I immediately called, reported and turned the vehicle into the local Chevrolet dealership here in reno, nevada. Gm's third party did a full investigative report, pulled the black box from the vehicle on December 15th, 2024 and just today, 70 days after the claim, gm informed us that they want to buy the vehicle back. Gm is claiming "what happened is consistent with the unwanted or undesired automatic emergency braking system failing. " this is the only communication we have had with gm thus far. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Forward collision alert system not warning when a near collision is about to occur. This failure was confirmed by the dealership. The dealership also told me they have 5 other 2024 Colorados also failing with this area of the alert system. The dealership has tried 2 new cameras and the fault continues. Chevrolet care team knows of the failure, but have given no updates on how to correct this.

The contact owns a 2023 Chevrolet Colorado. The contact stated that several sensors were activated with contact being alerted to an issue with the lane keep assist, and the vehicle veering out of the intended lane. The contact stated that while driving 45 mph, the forward collision avoidance: automatic emergency braking activated unintendedly. The contact stated that the failure was self-corrected. The dealer was contacted, and an appointment was scheduled. The contact inquired of the the dealer if the VIN was included in NHTSA campaign number: 24v133000 (electrical system, forward collision avoidance). The dealer informed the contact that the VIN was not included. The manufacturer was not informed of the failure. The failure mileage was approximately 15,000.

First occurrence I was traveling 55 mph down a country road at 7:30 a. M. Driving into the sun and at 55 mph with a car following me my truck just instantly locked the brakes up and came to a stop. The second occurrence was at my son's school I turned the corner at a stop sign and right after I turn the corner and started accelerating the truck slammed on the brakes to an instant stop with no cars in front of me or in the other lane on coming.

3 different issues 1. Automatic emergency braking: was driving and truck slammed brakes twice at 55 mph to 15mph there was no cars or people anywhere around truck when it happened. The jolt was so bad my neck and my wrist hurt for 3 to 4 days, if there was it would have caused an accident. Took truck in twice once to for recall and 2nd for the brakes slamming. Chevy said they couldnt make it happen again so they cant fix it. I explained it didnt happen for over 11,000 miles so how I just have to wait until it happens again. The light and sound still goes off randomly but brakes haven't slammed yet. Very dangerous this really puts mine and others at risk. 2. Windows don't always go down part has been on order may still waiting Aug 11, 2024 3. Recently truck won't start battery dead. Going to take in tomorrow. I reached out to gm due to chevy dealer said they are the only ones that can fix issue. That didn't work either. I still have a brand new deg effective truck. Don't know what else to do. Lawyer says to take it in 2 more times then they can start a case. All I want is it fixed specially when I bought it new.

Got a letter that my vehicle had a recall on adas system. Took it in to get fixed. A week later was driving home from work on a straight away and trucks brakes slammed from 50 to 15 then let up. The impact was like someone hitting me from behind. Strained my neck and wrist. Because I was in shock it happened so looked around and there was only one truck 2 lanes on side of road. When the brake released I started driving again. 3 min later it then happened again. I was scared it would happen again so I drove home real slow. We took it back in to get fixed on 04 30 2024 at t he chevy service in hemet. Roger used a sensor reader showing brakes locked up twice. They said they checked it and because there was no issues showing. They didn't fix it. Roger said they drove it 10 miles and nothing happened I explained I have driven it 11000 miles and nothing happened until last week. How can they send me away without fixing a very dangerous issue. As of today 4302024 it can still happen. I was lucky there was no cars behind me that day it would be a different story. Now I have to call gm to try and get them to tell hemet chevy to fix it so no one gets killed or hurt next time it happens. What ever happened to fixing the issue?.

Driving down the road and truck just randomly slams on brakes and says something is in front of me when it is not.

While driving with no other vehicles surrounding us, the pick up truck all of a sudden activated the breaks.

Driving along a two lane country road when out of know were the truck lock up the brakes, there was know traffic in front or rear, lucky for use. The only thing was a park car about 200 ft off the road with no one in it. I have since taken the dealer who spent 5 hours looking at the system only two come back and tell me it working as designed. He told me to be careful as it is very sensitive. Boy ain't that great, the thing that's supposed help you to avoid crash got cause a crash.

When driving through an intersection, the vehicle incorrectly applied the automatic emergency braking system. There was no risk of crash, however the application of the hard braking in the intersection put me at risk of a rear collision. I do see that the new recall is supposed to address this issue.

The automatic emergency braking system failed me today. The truck is available for inspection. I was driving at about 45 mph, when a car pulled out from a driveway infront of me when it probably should have waited, but there was still time for me to brake safely. I started to apply the brakes and the truck slammed on the brakes, no red lights on the dash flashing, no warning beep. I pulled my foot off the brake because I wasn't sure what was happening but, the truck slammed the brakes to a full stop. . Instant stop! if there had been a car behind me, I would most certainly have been rear ended. The seat belt locked up, my body was thrashed forward twice because of the quick slow down and the stop. I'm sore, scared and not sure what to do. This isn't something that can be recreated without putting someone else in danger. This is not a safety feature, it's an accident waiting to happen!.

Vehicle panic braked for absolutely no reason at all. I was rounding an ascending curve, there were no vehicles within sight in front of me. Fortunately there were none directly behind me either.

Twice in the first 6000 miles this vehicle has suddenly activated the forward collision avoidance system with emergency breaking although no cars were around. Fortunately a vehicle wasn’t behind me otherwise there may have been a collision. I took the vehicle in for service with this complaint and the dealership simply said they could not reproduce the issue during a test drive. Obviously this wasn’t helpful.

The contact owns a 2023 Chevrolet Colorado. The contact stated while driving 45 mph, the forward collision avoidance: automatic emergency braking system activated erroneously, and the vehicle decelerated to 10 mph before the feature released. There was no warning light illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 5,500.

While driving the vehicle on three occasions the automatic emergency braking system activated for no apparent reason. The unexpected activation caused the vehicle to brake very hard and the possibility of a rear collision from a following vehicle could have been catastrophic. There were no symptoms or warning indications prior to the incidents. I have deactivated the aeb system until the dealer can correct the problem. I just learned of the problem on 2/22/24, so have not had an opportunity to have the problem corrected.