Chevrolet Trailblazer door locks problems

Filed Mar 16, 2026 · Electrical · FL

Unknown. This was a certified preowned vehicle that was purchased on December 18, 2024. We have had NUMEROUS issues with the car since purchase but the most concerning has been the door actuators. The front door actuators on both sides failed in less than a year from date of purchase. I was told by the dealership where it was repaired that this was a common problem and to expect the rear ones to not be far behind. 4 months later, the rear ones are now not working. This creates a safety hazard, especially since this is the primary vehicle that my teenager drives with his younger brother. A malfunctioning door lock actuator can create dangerous situations, including the possibility that a door may fail to unlock or open, potentially trapping passengers in the vehicle during an emergency or out of the vehicle when my underage children are by themselves. Conversely, the door may appear to be locked when the mechanism has not actually engaged, leaving the vehicle vulnerable to unauthorized access. Faulty actuators may also cause erratic locking or unlocking behavior while the vehicle is in motion, which can create a safety distraction for the driver as well as a security risk. There were no warnings that this was an issue. My son thought the doors were locking (and unlocking). I am aware GM is already "tacking" this issue as I could find stats on how many people have reported, so it is enough that they are taking notice.

Filed Oct 21, 2025 · AL

The locking mechanism has went out in all doors. Unable to unlock / lock and once they are locked, unable to open the door unless it is opened from the inside. I replaced the drivers side door lock actuator and mechanic stated they all needed to be replaced.

Filed Nov 25, 2024 · Transmission · MN

This vehicle has approximately 35,000 miles of driving time on the odometer. This car will not recognize that the shift lever has been place into the Park position. Doors will not lock when the car is turned off. If trying to seek refuge from an assailant, the car will only alarm but will not lock the doors for safety. Also, while storing items in the vehicle while at a metropolitan hospital (where I work) or a metropolitan grocery/fuel station, the vehicle will only alarm but will not lock under any circumstance. The car is responding as if the car is still in a movement gear position and will not recognize the shift position of Park. I have heard of many similar documented cases regarding this particular shift issue in relation to the 2021 Chevrolet Trail Blazer yet there has been no related recall related to this ever more prevalent repair need. some reports (not ours...) report the automobile transmission converting to park while in movement and while in a selected movement shift position. I do not want this to happen to me. My car (VIN # [XXX] ) is at the dealership for repair. The dealership informs us that the needed part(s) are currently under manufacture at a supplier and that there is no estimated date for the part(s) arrival or date to complete this repair. The car cannot be driven safely in a metropolitan area because in cannot be locked with the ignition off and the car just continues to alarm if walked away from. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 28, 2024 · Electrical · FL

Malfunctioning door locks cause safety issues for drivers and passengers. If you do an internet search, you can find thousands of questions on this specific issue for Chevrolet door electronics. They are doing nothing to correct this isse.

Filed Sep 30, 2023 · Electrical · KS

Unable to remove key from ignition on numerous occasions. This gives a person an opportunity to steal to vehicle or even a child and get in the car and put in gear. Thus happens with both keys. When unable to remove the doors will not lock. My mechanic can not find a fix.

Filed Oct 15, 2021 · Electrical, Transmission · WA

Several months ago, I was at a fast food drive up window. I had my drivers side window down while paying for my food and receiving my food. It was down pouring and the inside of my door got pretty wet. I wiped off the rain as best as I could but everything was soaked. The very next day the drivers side door controls started to go haywire. The window button stopped working and my door locks only worked occasionally until they stopped working all together. My side mirrors can no longer be adjusted from the drivers seat. I have to get out of the vehicle and manually adjust both driver and passenger side mirrors. I'm not sure if there is a short in the wiring from the rain or just what is going on. I asked a parts dealer to see how much it would cost to replace the drivers side door controls module and he was of no help except to say its a recall part because of moisture. I've looked this up and I see there was a recall but my VIN isn't on the recall list. I don't understand why my vehicle is excluded considering this appears to be exactly what this incident generated the recall in the first place. I further looked into the investigation you had on the Trailblazer's outside of the salt belt states having the same issues with the moisture and issues that arise from the damaged door controls. I'm not sure if I would be considered in the expanded recall but I'm certain I should be as this is exactly why my drivers side door controls failed. I feel this is a huge safety issue as i don't know if there is a electrical/wiring short and not being able to adjust the side mirrors is an impairment. There was no warning to let me know anything was wrong. The system just went out just that fast. Please advise me how to proceed with my next steps to get this resolved. Also, my low beams went completely out the other day and replacing the bulbs didn't fix that issue. I do have a recall scheduled for January to get the headlights fixed and I'd like them to fix both issues. Thank you.

Filed Sep 10, 2021 · Electrical, Engine · 5,000 miles · TX

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the dealer on two separate occasions and the dealer informed the contact that the AUTO-STOP function was unprogrammed due to the weather however, the dealer was unable to duplicate the failure. The dealer reprogrammed the AUTO-STOP software and tire pressure sensor however, the failure recurred. The manufacturer was made aware of the failure and the contact was awaiting a callback. The failure mileage was approximately 5,000.

Filed Dec 23, 2019 · Electrical · 89,000 miles · CA · fire

Had recall repaired at dealer. Car caught fire door panel switches. Repair has now failed again 12/23/2019. The previous incident, wires were burning in the door panel. Door locks and light were operating erratically. This time the driver s controls are all inoperative. Car was moving at time, made to house, called fire dept via onstar. Car was at dealer several days. Did complain something still banging in door radio speaker has not worked since their recall repair

Filed Dec 30, 2018 · Electrical · IL

I am experiencing all issues identified with recall due to door switch sensor being defective. Intermittent working of door locks not locking or locking and won't unlock . Windows won't work sometimes, and sometimes they will . Lights won't shut off in interior, or won't go on . Delay feature where radio , and other features stay on after turning ignition off , and still in vehicle won't work , and sometimes do work . These things happen when vehicle is either moving, or not moving in park . They happen both city driving, and highway as well. All of these crazy electrical problems began several months ago, and when in the vehicle and I am in park, and shut off ignition, and the doors won't unlock, the key fob won't work to unlock doors either, and I am trapped inside vehicle until someone is close enough to hear me yelling for help, and can hand them my keys out of sunroof in order to put it into lock on the door and manually unlock the door. I absolutely must have this fixed because nobody near my residence to either let me out of vehicle, or to call . Closest person I can call is over an hour away . I am on disability of 720.00 a month and can't afford this repair .

Filed May 24, 2018 · Electrical · FL

Control panel on drivers door is no longer functional, during a heavy rainstorm I got out of my truck, closed the door and ran to my house. The next day the controls no longer worked. This is not the first time I've left my vehicle while raining but the first time the controls stopped working. This was a recall item in other years 2006-2007. Chery does not recognize this being the same issue in the 2005 model. Chevrolet trailblazer recall - #13v248000. Fluid may enter the driver's door module, causing corrosion that could result in a short in the circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing odor, smoke, or a fire.