Is your defective Chevrolet Trailblazer actually a LEMON?

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10.0

really awful
Crashes / Fires:
1 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
548 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Chevrolet Trailblazer electrical problems

electrical problem

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2021 Chevrolet Trailblazer Owner Comments

problem #12

May 282024

Trailblazer

  • miles

A D V E R T I S E M E N T S

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.

- Boca Raton, FL, USA

problem #11

Apr 152024

Trailblazer

  • miles
Shift to Park warning message continues to appear when already in park and trying to turn the vehicle off. Unable to exit and leave vehicle until you continually try jamming the gear into park over and over to get it to register.

- Lake Mary, FL, USA

problem #10

Jan 012024

Trailblazer

  • miles
The radio screen is constantly going black or glitching, the music will silence, the back up camera will stop working. Carplay does not connect often, also glitches in and out when driving. There is little to no air or heat coming from the floor panel when feet option is pressed for climate. In order to feel heat or A/C have to be on face option.

- Sun City, FL, USA

problem #9

Sep 012023

Trailblazer

  • miles

A D V E R T I S E M E N T S

The car will all of a sudden make a loud popping noise through the radio. It is enough to scare someone while they are driving and have a wreck. The brakes are very touchy to the point of almost giving you whiplash

- Gainesville, GA, USA

problem #8

Dec 152022

Trailblazer

  • miles
Popping sound from passenger side front speakers when releasing the brake pedal after a stop. Vehicle in drive.

- Manchester, NH, USA

problem #7

Oct 072022

Trailblazer

  • miles
"Shortage in radio" according to Chevrolet's diagnostic. Caused black screen, no back up camera, no beeping when in reverse and coming close to another object, no sound when blinkers or hazard lights are on, no radio, no power to front charger, no ability to use front auxiliary cable. Initially a loud buzzing noise which could not be controlled by the volume dial. Problems began on or around October 7, 2022. Purchase was made September 2020. Vehicle is available for inspection upon request. Problem can be reproduced/is constant. Problem was reproduced by dealer. Vehicle was inspected by dealer. There were no other warning lamps.

- Stratford, NJ, USA

problem #6

Oct 232022

Trailblazer

  • miles

A D V E R T I S E M E N T S

Shortly after purchasing my trailblazer in 2020 I noticed a glitch in the speakers where it would make a crackling noise (mainly when the car is off). it hasn-??t been consistent when it happens, but since observing the issue I notice the issue happens most often when I close the trunk (by pressing the button on the trunk door.) no warning lights shows when this happens. Although this doesn-??t seem to be a harmful safety issue, anything electrical can result to something more serious. I plan to bring this issue up at my next oil change at the dealership.

- Mongaup Valley , NY, USA

problem #5

Mar 202022

Trailblazer

  • miles
Started having issues where all the electronics on the car go blank/dead. So far when this has happened it has not caused the car to be inoperable but in the meantime I have found that the car is leaking (seriously leaking) under the entire drivers seat was soaked. I noticed a while back that it smelled like mildew in the car, I had it cleaned and put a damp rid pouch in there, that basically absorbed in 2 days, but never could find the water. This week I found the water...under the drivers seat. This car has been leaking for 2 years! Last night, I get in the car and plug in my phone to charge and get a message of LIQUID DETECTED Charging is not available because liquid has been detected in the lightning connector. Disconnect to allow the connector to dry. At the same time the phone was plugged in everything started to crackle and squeal through the radio and then no radio at all. There is no way all these components are not damaged. Meanwhile I have take it to a dealer for them to do a "water test", I have zero confidence that this water test will yield any positive results and I am without a vehicle. So I am trying to get this info out anywhere I can to see if other people had similar issues and what can be done. It can not be safe to drive a car that the electronics have water damage.

- Tallahassee, FL, USA

problem #4

Feb 272021

Trailblazer

  • 1,574 miles
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle made an abnormal popping sound before the power steering and brakes failed. Additionally, the brake pedal became extremely sensitive while gently being depressed causing the vehicle to abruptly stop. The contact had to restart the vehicle to correct the failure. The failure was intermittent. The vehicle was taken to the dealer however, the dealer could not duplicate the failure. The vehicle was taken to another dealer, Frontier Motors Incorporated (31406 US-18, Winner, SD 57580) on numerous occasions and diagnosed with electrical system failure. The dealer reprogrammed the power steering angle sensor and rear differential clutch sensor; however, the failure recurred. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure. A case was being processed by the Better Business Bureau under the Lemon Law and was awaiting final repair notice from the dealer. The failure mileage was 1,574.

- Butte, NE, USA

problem #3

Jan 012021

Trailblazer

  • 5,000 miles
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.

- Goldsmith, TX, USA

problem #2

Jul 262021

Trailblazer

  • miles
Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car.

- Millsboro, DE, USA

problem #1

Jul 252021

Trailblazer

  • miles
Within 3 months of owning the vehicle I started to hear a crackling sound coming from the passenger speaker in the door. At first it was loud and I thought someone hit me. It did it several times and then stopped. It has happened about a dozen times since I have owned the vehicle. When I took it in for my oil change I told them and they could not replicate it so they didn't know what it was and didn't see anything. It actually just happened again yesterday so when I take it in again I will tell them about this. We thought maybe it was only when it rained but that is not the case, it just happens and I can't think of anything that is consistent when it does. It comes out loud and scares me every time. I just want this fixed, I have only owned my car for 1 year now and like everything but this.

- Cincinnati, OH, USA

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