2021 CHEVROLET TRAILBLAZER

4 recalls, 280 complaints - 803 TSBs - 5/5 safety rating

EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STAND

Defect Description

General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.

Consequence

A fractured jack can cause the vehicle to collapse, increasing the risk of injury.

Remedy

Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet... Read more

135,400 vehicles affected

Manufacturer: General Motors, LLC

SERVICE BRAKES

Defect Description

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor ... Read more

Consequence

If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.

Remedy

GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's nu... Read more

3,677 vehicles affected

Manufacturer: General Motors LLC

SEATS

Defect Description

General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed.

Consequence

If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.

Remedy

GM will notify owners, and dealers will inspect seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began October 1, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number ... Read more

105 vehicles affected

Manufacturer: General Motors LLC

TIRES

Defect Description

General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as required. As such, t... Read more

Consequence

If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.

Remedy

GM will notify owners, and will mail corrected labels for customers to apply, free of charge. The recall began July 1, 2020. Owners may call Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202304070.

20 vehicles affected

Manufacturer: General Motors LLC

Complaint Statistics

280 total complaints 25 crashes 6 fires 16 injuries

Top Reported Components

Component	Complaints
ENGINE	33
SERVICE BRAKES	32
ELECTRICAL SYSTEM	31
UNKNOWN OR OTHER	27
POWER TRAIN	25
STEERING	18
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING	10
FUEL/PROPULSION SYSTEM	10
AIR BAGS	9
VEHICLE SPEED CONTROL	8

Incident date: Sep 6, 2026

Dear Chevy, I am reaching out to you again because I am desperately requesting immediate assistance with my vehicle, which has now become an extremely serious and dangerous safety concern. On Friday, [XXX], I had my vehicle towed to the dealership because of the ongoing mechanical issues I have be... Read more

Incident date: Sep 6, 2026

Incident date: Aug 26, 2026

Original Owner of 2021 Chevy Trailblazer LT. Purchased new in April 2021. Vehicle has a history of major powertrain issues, starting with Check Engine light during its first year of ownership, culminating in a complete turbocharger replacement in December 2025. This only as a result of my research,... Read more

Incident date: Aug 26, 2026

Incident date: Aug 18, 2026

Shifter

Incident date: Jul 29, 2026

275/50 R22 I was driving on a major interstate approximately 65 mph when a strong vibration was felt. As I started to move to the shoulder and slow down, the tread detached from the tire. The tire remained on the vehicle but the tread delaminated and was in the middle of the highway. This caused si... Read more

Incident date: May 1, 2026

A non-serviceable, faulty rollover valve inside the gas tank is causing the vehicle to leak fuel (also fails to contain fuel in the event of a rollover - exacerbating fire hazards in the event of an accident). The solution is to tear apart the entire bottom of the car to replace the entire gas tank... Read more

Incident date: Oct 9, 2025

In the process of parking, vehicle was stopped in the parking spot and vehicle suddenly accelerated to a high speed and crashed into a brick column. Air bags did go off. The warning sound and diagram that indicates you may have gotten too close to the curb in front did not go off. Police were called... Read more

Crash

Incident date: Jul 1, 2026

I brought my 2023 Kia K5 to Citrus Kia in Ontario, California on 2/20/2026 for two safety recalls, including Recall SC356 involving a defective fuel check valve that can cause the fuel tank to expand, melt, and potentially catch fire. When I picked up my vehicle on XXX, I was given a repair invoice ... Read more

Incident date: Jun 30, 2026

The contact owns a 2014 Ford Escape. The contact stated that while the vehicle was parked, the front passenger's side door failed to latch or lock as intended. The dealer was made aware of the failure. The contact was informed that the repair was not covered under a recall. The vehicle was not diagn... Read more

Incident date: Jun 30, 2026

See attached document for complaint.

Incident date: Jul 18, 2026

This has happened 5 times since purchasing this 2026 Chevy Equinox RS. While driving, all of a sudden, without any notice, the dashboard lights up with warnings about "BRAKES"...Not exactly sure what is said because it doesn't stay on the screen very long. Next it says, STEERING ASSIST IS REDUCED.... Read more

Incident date: Jul 1, 2026

While driving my 2018 Toyota Highlander Limited, the check engine light began flashing off and on. I was near an exit and drove off the freeway. I could feel the car (near the gas pedal) start shaking, then the power went down quickly... as I was trying to find a safe place to go. The farther I drov... Read more

Incident date: Feb 11, 2024

The contact owns a 2024 Toyota Venza. The contact stated that upon parking the vehicle, the vehicle unintendedly accelerated to 15 MPH, and the contact continued to depress the brake pedal. The vehicle came to a complete stop after crashing into the base of a light pole and a retaining wall. The fro... Read more

Crash

Incident date: Jun 25, 2026

Complete engine failure at 7000 miles.

Incident date: Jun 25, 2026

Loses the memory seat position all the time and seat does not roll back to exit. Speed limit warning setting is forgotten and alerts at 2 mph default, parking camera view fail to come on and must be selected manually, door trim popped off driver door requiring 2 trips to dealer to fix and a third t... Read more

Incident date: Jul 10, 2026

Engine began knocking, brass colored shaving in drained oil due to bearing damage. This vin is not covered by the recall scope

Incident date: Apr 17, 2026

Component: Air Bags – Knee Airbag / Trim Panel During a collision, on July 3rd with the Mazda CX‑50, the knee airbag deployed and a hard plastic trim panel from the lower dashboard was forcibly ejected. This panel struck my knee and caused a laceration across my kneecap. The injury was not caus... Read more

Crash 2 injured

Incident date: Jan 3, 2026

I have took it in to get it repaired about a year ago the sensor went off and got them fix but when I explain what else was happening they found nothing months down I has other people and couldn’t find the problem with my vehicle which is now a risk to drive the steering wheels gets stiff and hard... Read more

Incident date: Jun 8, 2026

UPDATE:American Honda was formally notified of this steering failure on my 2025 Civic Hybrid. Honda corporate has officially declined to pull the EDR black box data, stating that data retrieval must be handled via the insurer. The physical vehicle is now being transferred to State Farm Insurance at ... Read more

Crash 3 injured

Incident date: Jun 18, 2026

Check engine light comes on and error P0303 comes on. Had an independent mechanic do the following and after each one, error P0303 still came on 1. Swap the ignition coils from 2 to 3 2. Swap spark plugs from 2 to 3 3. Swapped injectors 4. Compression test 5. Leak down test 6. Changed the spark plug... Read more

Incident date: May 12, 2026

While driving my truck it started flashing all the service lights on the dash, and then started shaking bad and making a loud ratcheting noise from the transfer case/transmission and a loud knock/tick from the engine. I scanned for codes and it has all loss of communication codes for engine/trans... Read more

Incident date: May 12, 2026

Incident date: Jun 4, 2026

I had a engine replaced 1600 miles ago delarsship advised it was ok to drive gave me a vechicle back with abs light tracation control light on along with a exuast leak

Incident date: Jun 4, 2026

The contact owns a 2015 Kia Soul. The contact received notification of NHTSA Campaign Number: 20V750000 (Engine). The contact stated that while her husband was driving at 20 MPH, the Check Engine warning light illuminated, and the vehicle stalled. The vehicle could not be restarted. The vehicle was... Read more

Incident date: Jun 4, 2026

I bought a brand new 2026 1500 GMC sierra AT4X and after 1,800 miles the engine seized and failed.

Incident date: May 27, 2026

Honda has made it extremely easy for thieves to steal the front radar sensor on all 2024 CR-V models. Mine was recently stolen, and there is currently no approved protection or deterrent offered by Honda to prevent this. Even after replacing it, the risk of it being stolen again remains very high. A... Read more

Incident date: May 15, 2026

Windows and engines

Crash

Incident date: Jul 1, 2024

I went shopping notice needed gasoline filled the tank 3/4 the next day I smell gasoline on My2013 Sonata Hybrid VIN [XXX] inside the car and I did not notice any light alerts etc., just the smell of gasoline inside the car. I ask for a ride I was scare to drive to the dealer on Monday 5/6/26 arou... Read more

Incident date: Jul 1, 2024

I have a paid in full 2018 Ford Escape 1.5L Eco Boost. I am just over the 150k mile mark and out of the blue I was left stranded on the side of a completely dark highway at 4:30AM after working a shift. The car alerted me out of no where with no indication of an issue arising that the engine was ove... Read more

Incident date: Jun 26, 2025

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 40 MPH, the vehicle stalled. During the failure, several unknown warning lights illuminated, and the vehicle was jump-started. The Auto START/STOP function was disabled for the vehicle to operate prope... Read more

Incident date: Jun 26, 2025

Incident date: Jan 13, 2026

I was driving into the city and crossing an intersection with train tracks. There was no obstacle and the car warned me by flashing the sign to brake, beeped, and then it automatically slammed on the brake and stopped my car in the middle of the intersection on the tracks. I was goin probably 40 mph... Read more

Incident date: Oct 17, 2021

The vehicle intermittently fails to reverse properly, hesitates, jerks, and at times locks despite no obstruction present. This occurs during normal use and creates a serious safety concern, particularly when backing out of parking spaces or into traffic. In addition, the vehicle exhibits ongoing e... Read more

Incident date: Mar 19, 2026

The contact owns a 2022 Subaru Outback. The contact stated that while operating the vehicle, there was a whining sound coming from the transmission, and the vehicle was jerking while driving. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the fail... Read more

Incident date: Apr 5, 2026

My 2017 Ford Explorer suddenly started vibrating intensely whenever I am at a stop or start slowing down. Episodes of hesitation when attempting to take off from a start with significant rpm surges. I am told I need to have my torque converter replaced. My vehicle has 84,697 miles on it, and was bou... Read more

Incident date: Dec 3, 2025

the pedal sinks while I hold it for while.....and there are no visible leaks outside the car

Incident date: Apr 14, 2026

The contact owns a 2020 Ford Escape. The contact received notifications of NHTSA Campaign Numbers: 25V467000 (Fuel System, Gasoline) and 26V123000 (Back Over Prevention); however, the parts to do the recall repairs were not yet available. The dealer was contacted several times. The vehicle was not d... Read more

Incident date: Dec 19, 2025

The contact owns a 2021 Grand Design Recreational Momentum. The contact stated that while hauling the RV and driving at undisclosed speeds, the rear side door unexpectedly opened and the slide-out extended outward. No warning light was illuminated. The trailer was taken to a local dealer and remaine... Read more

Incident date: Feb 12, 2026

Started the car to go to work and the check engine light came on, I stop started flashing and wouldn’t turn off. Message says there is a malfunction with the hybrid system and to visit Mazda dealer. I had to drive it to work, so it drove fine. But the lights never went off.

Incident date: Feb 1, 2026

We just bought this vehicle 3 weeks ago, paid sales tax and first car payment. The check engine light came on for P0304cyl 4 misfire, notice white smoke blowing from exhaust and low coolant level. Had technician pull plug four and used a boriscope and found coolant leaking into engine. Ford has a kn... Read more

Incident date: Mar 10, 2026

Hit a deer. Airbag did not deploy or emergency braking system didn't come on. Police took pictures of car. The car is at the repair shop now. Insurance company hasn't stated if it will be totaled. There were no other problems prior to incident.

Crash

Incident date: Feb 1, 2026

The contact owns a 2020 BMW X5. The contact received notification of NHTSA Campaign Number: 25V644000 (ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the vehicle failed to start. After several attempts, the vehicle started. The check cont... Read more

Incident date: Feb 1, 2026

Air conditioning has never worked. It was purchased in the winter. As weather warmed, we noticed the air conditioning was never cold. Dropped it off at the dealership. Their first comment before looking at the vehicle was that a rock probably hit it and broke the air conditioning. After inspection t... Read more

Incident date: Mar 10, 2026

The contact owns a 2009 Ford Escape. The contact stated that there was severe rusting and rot on the frame rail. The dealer was not notified of the failure. The manufacturer was not notified of the failure. The failure mileage was 184,500

Incident date: Mar 7, 2026

The Full stereo system with cameras and most sensors and the car is currently at the dealership as 03/09 @11:00 am and I took It to them as well so that they can repair the other pending recall I have at the moment and they stated that It was a " point to point check recall " and that they would cha... Read more

Incident date: Mar 7, 2026

While driving, I attempted to depress my clutch pedal in order to bring my vehicle to a stop. My clutch pedal only went halfway to the floor. I was able to force it down to the floor using a higher than usual amount of force. After bringing my vehicle to a stop I inspected my clutch pedal and found ... Read more

Incident date: Feb 1, 2022

Vehicle shudders under acceleration no warning lights or errors . Changed transfer case oil and same problem continues. No recall from manufacturer for issu

Showing 50 of 280 complaints.

NHTSA Safety Ratings, 2021 CHEVROLET TRAILBLAZER

2021 Chevrolet Trailblazer SUV FWD Later Release

Category	Rating
Overall Rating	5 / 5 ★★★★★
Frontal Crash	5 / 5 ★★★★★
Frontal Crash, Driver	5 / 5 ★★★★★
Frontal Crash, Passenger	4 / 5 ★★★★☆
Side Crash	5 / 5 ★★★★★
Side Crash, Driver	5 / 5 ★★★★★
Side Crash, Passenger	5 / 5 ★★★★★
Rollover	4 / 5 ★★★★☆
Rollover Risk	18.5%

Safety Technology

Feature	Status
Electronic Stability Control	Standard
Forward Collision Warning	Standard
Lane Departure Warning	Standard

Source: NHTSA 5-Star Safety Ratings Program. Ratings are based on crash tests conducted by the National Highway Traffic Safety Administration.

Technical Service Bulletins, 2021 CHEVROLET TRAILBLAZER

803 manufacturer communications from 392 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
350000 EQUIPMENT	129
060000 ENGINE AND ENGINE COOLING	115
110000 ELECTRICAL SYSTEM	100
100000 POWER TRAIN	59
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	51
200000 WHEELS	25
060000 ENGINE (PWS)	24
356000 EQUIPMENT ADAPTIVE/MOBILITY	19

200000 WHEELS

This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

350000 EQUIPMENT

This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

110000 ELECTRICAL SYSTEM

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

100000 POWER TRAIN

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

350000 EQUIPMENT

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

200000 WHEELS

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

110000 ELECTRICAL SYSTEM

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

118000 ELECTRICAL SYSTEM:SOFTWARE

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This service bulletin advises the technician to replace valve body first to determine if that is the issue for and if not, to inspect internal parts of transmission for any signs of abnormal wear to correct customer concerns of Loss of Forw

100000 POWER TRAIN

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

350000 EQUIPMENT

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

110000 ELECTRICAL SYSTEM

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

060000 ENGINE AND ENGINE COOLING

Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles. The Engine Control Module (ECM) may not clear the permanent status of DTC P0521 (Engine Oil Pressure Sensor Performance). If t

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

350000 EQUIPMENT

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

350000 EQUIPMENT

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

030000 BRAKES (PWS)

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

070000 FUEL SYSTEM, GASOLINE

This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

980000 UNKNOWN OR OTHER

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

350000 EQUIPMENT

This technical bulletin provides a procedure to correct the condition of Service All-Wheel Drive System Messages Displayed with Rear Drive Motor DTC C0095 Set.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to correct the condition of Service All-Wheel Drive System Messages Displayed with Rear Drive Motor DTC C0095 Set.

100000 POWER TRAIN

This technical bulletin provides a procedure to correct the condition of Service All-Wheel Drive System Messages Displayed with Rear Drive Motor DTC C0095 Set.

110000 ELECTRICAL SYSTEM

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

100000 POWER TRAIN

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

350000 EQUIPMENT

This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant to correct customer concerns of Various Electrical Issues, No Start, Stall, Brake Lamp Not Off, Radio Inoperative, Remote K

200000 WHEELS

160000 STRUCTURE

110000 ELECTRICAL SYSTEM

030000 SERVICE BRAKES, HYDRAULIC

110000 ELECTRICAL SYSTEM

This service bulletin provides a repair procedure to correct a customer concern of Loss of and/or Reduced Propulsion.

100000 POWER TRAIN

This service bulletin provides a repair procedure to correct a customer concern of Loss of and/or Reduced Propulsion.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information on normal engine characteristics/noise produced by the LIH engine.

060000 ENGINE AND ENGINE COOLING

This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

070000 FUEL SYSTEM, GASOLINE

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

100000 POWER TRAIN

This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle

060000 ENGINE AND ENGINE COOLING

350000 EQUIPMENT

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

110000 ELECTRICAL SYSTEM

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.

350000 EQUIPMENT

This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures.

350000 EQUIPMENT

This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.

160000 STRUCTURE

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

100000 POWER TRAIN

This Preliminary information communicates the process for recording transmission noises using the PicoScope For review

100000 POWER TRAIN

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

060000 ENGINE AND ENGINE COOLING

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen. While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will st

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Di

120000 EXTERIOR LIGHTING

This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.

100000 POWER TRAIN

This Preliminary information communicates inspection and/or needed repairs for DTC P2714 on a VT40 CVT transmission

110000 ELECTRICAL SYSTEM

This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

350000 EQUIPMENT

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

100000 POWER TRAIN

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

110000 ELECTRICAL SYSTEM

This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides a procedure to fix an oil leak from a porous area at the cylinder head and how to fix it so that the engine does not have to be replaced.

350000 EQUIPMENT

This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking

110220 ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

980000 UNKNOWN OR OTHER

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

162310 STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS

This service bulletin provides repair information to correct a customer concern of a Rear Side Door Weatherstrip Coming Loose.

160000 STRUCTURE

This service bulletin provides repair information to correct a customer concern of a Rear Side Door Weatherstrip Coming Loose.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

350000 EQUIPMENT

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

350000 EQUIPMENT

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

060000 ENGINE AND ENGINE COOLING

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

110000 ELECTRICAL SYSTEM

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides Information on Purge Pump Part Replacement and Purge Part Number Interchange.

100000 POWER TRAIN

This technical bulletin provides a procedure to replace the shifter if the park switch has been found with bad pins, causing the customers concern.

110000 ELECTRICAL SYSTEM

This technical bulletin provides a procedure to replace the shifter if the park switch has been found with bad pins, causing the customers concern.

060000 ENGINE AND ENGINE COOLING

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

110000 ELECTRICAL SYSTEM

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

110000 ELECTRICAL SYSTEM

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

100000 POWER TRAIN

This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

350000 EQUIPMENT

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

120000 EXTERIOR LIGHTING

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

060000 ENGINE AND ENGINE COOLING

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

020000 SUSPENSION

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the

Showing 100 of 803 bulletins.

NHTSA Safety Investigations, CHEVROLET TRAILBLAZER

Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.

PE, Closed , Model Year: 2006

Driver's Master Power Window Switch

The Office of Defects Investigation (ODI) opened this investigation on February 9, 2012 in response to complaints alleging driver door module melting and/or burning in MY 2006-2007 Chevrolet Trailblazers. In response to ODI's Information Request letter, General Motors presented 167 reports and 698 w... Read more

PE, Closed , Model Year: 2002

FUEL PUMP MODULE LEAKS GASOLINE

ODI HAS RECEIVED REPORTS THAT THE FUEL PUMP MODULE LEAKS FUEL AND OR VAPOR UNDERNEATH THE VEHICLE.GM STATES, THE FAILURE MECHANISM IS CORROSION OF THE FUEL PUMP MODULE FLANGE WHICH MAY LEAD TO A FUEL LEAK.CORROSION OF THE FUEL PUMP MODULE FLANGE IS THE RESULT OF THE VEHICLE OPERATING IN A CORROSIVE ... Read more

PE, Closed , Model Year: 2002

BRAKE LAMP FAILURE

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS INVESTIGATION ON MODEL YEAR (MY) 2002-04 CHEVROLET TRAILBLAZER VEHICLES.GM REPORTS THAT OTHER VEHICLES SHARING THIS PLATFORM AND BRAKE LAMP DESIGN ARE THE MY 2002-2004 CHEVROLET TRAILBLAZER EXT; GMC ENVOY, XL, XUV; OLDSMOBILE BRAVADA AND 2004 BUI... Read more

EA, Closed , Model Year: 2002

WINDSHIELD WIPER FAILURE

ON SEPTEMBER 17, 2003, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE03-042) TO INVESTIGATE ALLEGED WINDSHIELD WIPER FAILURE IN CERTAIN MODEL YEAR (MY) 2002 AND 2003 CHEVROLET TRAILBLAZER AND TRAILBLAZER EXT, GMC ENVOY AND ENVOY XL, AND OLDSMOBILE BRAVADA VEHICLES.THE ... Read more

PE, Closed , Model Year: 2003

FUEL SPILLAGE DURING REFUELING

THIS INVESTIGATION WAS OPENED ON THE MODEL YEAR (MY) 2003 CHEVROLET TRAILBLAZER.BASED ON GM'S INFORMATION REQUEST (IR) RESPONSE, ODI ADDED TO ITS ANALYSIS THE MY 2003 GMC ENVOY AND OLDSMOBILE BRAVADA VEHICLES.THESE VEHICLES SHARE THE SAME VEHICLE PLATFORM (GM 360/370) AND FUEL FILL COMPONENTS.INCIDE... Read more

PE, Closed , Model Year: 2002

WINDSHIELD WIPER FAILURE

THE SUBJECT VEHICLES (CHEVROLET TRAILBLAZER (EXT), GMC ENVOY (XL), AND OLDSMOBILE BRAVADA) ARE BUILT ON THE GMT360 AND GMT370 PLATFORMS AND WERE ORIGINALLY EQUIPPED WITH A WINDSHIELD WIPER ASSEMBLY REFERRED TO AS THE ?FAMILY? DESIGN MODULE (P/N 15171306 BASE, P/N 15171307 FOR VEHICLES EQUIPPED WITH ... Read more

PE, Closed , Model Year: 2002

2002 TRAILBLAZER/ENVOY FUEL TANK LEAKS

SEE ATTACHED REPORT.

PE, Closed , Model Year: 2002

PINCHER/CHAFED WIRING

CHEVROLET TRAILBLAZER - All Years Overview

Complete safety history for the CHEVROLET TRAILBLAZER across all model years (2002, 2022).

43 Total Recalls

9,364 Total Complaints

8 Investigations

525 Reported Crashes

342 Reported Fires

44 Reported Deaths

CHEVROLET TRAILBLAZER - Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2026	0	11	View
2025	0	36	View
2024	0	50	View
2023	0	91	View
2022	1	173	View
2021 (current)	4	280
2014	0	2	View
2009	0	37	View
2008	0	263	View
2007	5	965	View
2006	8	1,441	View
2005	2	1,905	View
2004	2	1,302	View
2003	8	1,160	View
2002	13	1,573	View
2001	0	29	View
2000	0	32	View
1999	0	7	View

Other CHEVROLET Models

Model	Recalls	Complaints
SUBURBAN	246	10,458	View
TAHOE	240	12,622	View
MALIBU	216	29,080	View
SILVERADO 1500	200	22,534	View
CORVETTE	187	6,308	View
CAMARO	179	4,298	View
SILVERADO	159	10,964	View
SILVERADO 3500	152	1,409	View

Vehicle Safety

Consumer Safety

Infrastructure

Public Health

2021 CHEVROLET TRAILBLAZER

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2021 CHEVROLET TRAILBLAZER

Safety Technology

Technical Service Bulletins, 2021 CHEVROLET TRAILBLAZER

Most Affected Components

NHTSA Safety Investigations, CHEVROLET TRAILBLAZER

CHEVROLET TRAILBLAZER - All Years Overview

CHEVROLET TRAILBLAZER - Year by Year

Other CHEVROLET Models