Most common 2003 Chevrolet Trailblazer problems
Share of the 901 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Chevrolet Trailblazer complaints by model year
Best Trailblazer years: 2021, 2022. Years to avoid: 2005, 2002, 2006, 2004. Compare all years →
2003 Chevrolet Trailblazer recalls (8)
Exterior lighting › Turn signal
On certain trucks and sport utility vehicles, the driver wishing to signal a turn by moving the directional signal lever, (up or down) May cause the front marker/turn lights and rear turn lights to flash in a manner similar to hazard warning, rather than flashing on the desired side only.
Remedy: Dealers will replace the suspect flasher modules with a new flasher module designed with sealed relays and more durable contact material inside of the relays free of charge. The recall began on August 4, 2005.
Exterior lighting › Brake lights
On certain sport utility vehicles, vibration and heat May cause the tail lamp/stop lamp bulb to loosen in its socket. If this occurs, the bulb May flicker and eventually become inoperative.
Remedy: Dealers will inspect the tail lamp/stop lamp assemblies, and if necessary, replace them. The recall began on November 22, 2004.
Visibility › Windshield wiper/washer
Certain sport utility vehicles have windshield wiper systems that will not turn on, cease operation while in use, fail to turn off/on by themselves (moisture sensitive wiper system), or have continuous windshield washer pump operation because the presence of water within the wiper modules can either cause a short circuit or can…
Remedy: Dealers will cover the windshield wiper module vent hole with a patch. Also, the wiper motor, circuit board, and electrical connector will be inspected to signs of water intrusion and/or corrosion and be replaced as…
Equipment › Other › Owners/service/other manual
Certain minivans, passenger and sport utility vehicles fail to comply with the requirements of federal motor vehicle safety standard no. 225, "child restraint anchorage system." the owner's manual does not explain the meaning of the location symbols for the child restraint lower universal anchorage system.
Remedy: Owners will be provided with a supplement for their owner's manual. This supplement describes and shows the location symbols for the child restraint anchors that are located in the vehicle and on the child restraint or…
Service brakes, hydraulic › Foundation components › Hoses, lines/piping, and fittings
Certain sport utility vehicles were built with a left-front brake pipe with a circumferential score at a random location along the length of the pipe as the result of the manufacturing process.
Remedy: Dealers will replace the left-front brake pipe. Owner notification began on May 29, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a…
Power train › Automatic transmission
Certain sport utility vehicles fail to comply with the requirements of federal motor vehicle safety standard no. 114, "theft protection." these vehicles are equipped with a mechanical override that could allow the ignition key to be removed with the shift lever in a position other than park.
Remedy: Dealers will eliminate these conditions by disabling the overrides. Owner notification began on May 29, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the…
Show 2 more recalls
Air bags › Frontal › Driver side › Inflator module
On certain Mini vans, passenger and sport utility vehicles, some of these vehicles have a driver's side air bag that May not deploy as designed. In addition, the air bag inflator could rupture.
Remedy: Dealers will inspect, and if necessary, install a new driver's air bag. Owner notification began on March 11, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not…
Air bags › Frontal
Certain passenger, Mini vans, and sport utility vehicles have an air bag inflator on the driver's side that could fracture at a weld during a deployment.
Remedy: Dealers will inspect, and replace, if necessary, the air bag module assembly on the driver's side. Owner notification began August 15, 2002.
NHTSA defect investigations
Federal safety investigators have looked into 8 possible defects involving the 2003 Chevrolet Trailblazer:
Loss of Headlights
The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV.
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 environment.odi has upgraded this pe to engineering analysis (ea07-009) to further assess this issue.
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 Buick rainier.complaints allege that the rear brake lamp does not operate when the brake pedal is depressed.there is no…
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.incident summary numbers reported above include these vehicles.epa regulates the fuel dispensing rates at filling stations…
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 rainsense automatic moisture sensitive wipers).the windshield wiper assembly is located inside the plenum at the base…
Fuel pump module leaks gasoline
During the course of this ea investigation, odi observed that the majority of the complaints (88%) and warranty claims (94%) were reported for vehicles that are registered for use in the salt belt region of the us.this area includes 20 states in the northeast, mid atlantic and the midwest regions and the district of columbia.consumers in the salt belt region reported to odi that they could smell fuel vapors in their…
Brake lamp failure
GM states that some brake/tail lamp bulbs can prematurely become inoperative due to malfunctioning brake/tail lamp sockets.on March 2, 2004, GM initiated a 6-year/72,000 mile special policy for 989,487 subject vehicles to inspect and replace the rear brake/tail lamp bulb socket assemblies.on April 4, 2004, the office of defects investigation (odi) opened a preliminary evaluation (pe04-032) based on consumer…
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 investigation was upgraded to an engineering analysis on January 6, 2004, and the scope was expanded to include certain…
What 2003 Chevrolet Trailblazer owners say
Electrical system all 285 →
Transmission doesn't have 3rd or 4th gear. Vehicle was smoking under hood. Found out after buying it it has flood damage. Mechanic said there was water in the transmission when inspected. Vehicle needs catylic converter sensor and vehicle has bad ground wire. Seller didn't inform me of any of these issues and he said it was in good shape and very reliable.
I went to pick up my grandson who lives approximately 1 mile away, drove back home making it 2 miles. Upon parking in the driveway we both smelled something burning and noticed smoke coming out from under the hood. The ignition was switched off. Upon opening the hood I discovered the fuse box smoldering and melting away, so I quickly used a wrench to disconnect the battery terminals. Before doing so I noticed that the headlights were still on but growing dimmer by the minute. The vehicle is not in drivable condition.
Fuel & propulsion system all 180 →
On August 26, 2015 we purchased a 2003 Chevrolet Trailblazer from wali's auto sales in enola, pa. It had 93,907 miles on it and appeared to be in good condition with a clean car fax. We traded in our 1996 Chevrolet suburban and received $1700 in trade in value purchasing the Trailblazer for $5722.70 including tax and transfer fees. Brakes and ball joints had been replaced prior to our purchase along with a transmission line. We took the vehicle for an alignment as soon as we purchased it. We drove the vehicle approximately 200 miles and then on September 17th left home with intentions of driving the vehicle to stowe vermont. At 11:30 am on the morning of September 17th (approximately 2 hours into our trip) the vehicle lost power and brakes close to scranton, pa. The engine caught fire and within 7 minutes the vehicle burned up. The VIN number was not readable. …
While driving my vehicle in December 2015 I received a "service engine soon" display. I took the SUV to a service center who informed me my fuel tank was cracked & needed to be replaced. They ordered a new tank but have not been able to obtain the part. While researching the situation, I found record of an NHTSA investigation (action # pe07014) conducted in 2007 for the same problem, involving the same make, model & year as my vehicle in which GM was supposed to send letters to owners & repair the fuel tanks free of charge. I never received the notification and reached out to GM customer service to find out why, file a report and expressing my grave concerns regarding the safety issues of driving a vehicle in this condition. …
Transmission & drivetrain all 103 →
While driving my Trailblazer in A4WD on slippery road conditions, I went to pulled out of a parking lot and there was a loud sound like my whole front end fell out and the front end completely locked up. Almost causing an accident. I had to dial back to 2HI quickly to unlock to front end. There was no light indicating any problems. Been driving it 2HI since with out any problems. Still no service light or anything, but feels like I'm stuck in A4WD. Feels like there is a drag and a pulling to the right. Also using more gas since. It was a scary, afraid to try the 4x4 functions again. Another snow storm is on the way!
I was driving in the left lane on interstate highway 290 (youngman highway) at about 65 m.p.h. When smoke began wafting from the area where the steering column meets the dashboard. I took immediate evasive action, pulled onto and off the shoulder onto the grass, shut the engine off, ran to the barrier fence and watched to see if vehicle was going to burst into flames. After calling aaa, about ten minutes had elapsed without further smoke so I assumed I could drive to the next exit ramp at colvin blvd. (about 1,000 feet away) and off to a wendy's parking lot where I waited for a aaa flatbed truck. My SUV was flatbed towed to my dealership, fuccillo Chevrolet on grand island, where the problem was diagnosed as a faulty ignition switch, code number c0379. Total cost of repair was$222.66. It would be nice to be reimbursed for this expense. …
2003 Chevrolet Trailblazer engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.2L 6-cyl | 4-speed automatic | RWD | 14 / 20 / 16 |
| 5.3L 8-cyl | 4-speed automatic | RWD | 14 / 18 / 15 |
| 4.2L 6-cyl | 4-speed automatic | 4WD/AWD | 13 / 19 / 15 |
| 5.3L 8-cyl | 4-speed automatic | 4WD/AWD | 13 / 16 / 14 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2003 Chevrolet Trailblazer a good car?
Based on 901 owner complaints filed with NHTSA, the 2003 Trailblazer rates average: 1.2× as many complaints as a typical year of the Trailblazer at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2003 Chevrolet Trailblazer?
The electrical system — 285 complaints, 32% of all complaints for this model year, most often about instrument cluster/panel. Next are the fuel & propulsion system (180) and transmission & drivetrain (103).
How many recalls does the 2003 Chevrolet Trailblazer have?
There are 8 recalls for the 2003 Chevrolet Trailblazer, the most recent from May 5, 2005 (turn signal). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Chevrolet Trailblazer?
The best years by complaints, compared at the same age, are 2021 and 2022. Years to avoid or approach with caution: 2005, 2002, 2006 and 2004. See the full Chevrolet Trailblazer years comparison.
At what mileage do 2003 Chevrolet Trailblazer problems happen?
The median mileage reported in complaints is about 75,000 miles; 30% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.