Model year guide

2004 Chevrolet trailblazer ext

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2004 Chevrolet trailblazer ext is worth — from official NHTSA and EPA data. 1 on record.

2004 Chevrolet trailblazer ext — representative photo
Representative photo · via Wikimedia Commons

2004 Chevrolet trailblazer ext at a glance

Safety recalls1
Owner complaints1,357
Combined15–16 mpg

Free: that car's specs and build sheet, model-year recall campaigns and a fair price.

2004 Chevrolet trailblazer ext recalls 1

Exterior Lighting:brake Lights NHTSA Campaign #04V527000 · 01/11/2004

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.

Fix: DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, BUICK AT 1-866-608-8080, OR GMC AT 1-866-996-9463.

Source: U.S. NHTSA. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2004 Chevrolet trailblazer ext common problems

Owners have filed 1,357 complaints with NHTSA. These are the most-reported areas in a sample of the most recent — and what to check before you buy.

Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Exterior Lighting
Confirm all headlights, brake lights, turn signals and reverse lights work, with no moisture inside the housings.
Air Bags
Confirm the airbag light turns on then off at startup — if it stays lit there's a fault (costly, and a safety risk). Check for signs of prior deployment.
Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
Fuel/propulsion System
Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.

2004 Chevrolet trailblazer ext MPG & running costs

Combined15–16 mpg
City14 mpg
Highway18 mpg
Est. annual fuel cost$4,325
EPA size classSport Utility Vehicle - 2WD
TransmissionAutomatic 4-spd
5-yr fuel cost vs average new car$9,625 more

Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 4 versions of this model year; combined is shown as a range and the other figures are averages.

Estimated 5-year cost to own

A rough guide to what running a 2004 Chevrolet trailblazer ext costs over five years and 75,000 miles.

Fuel (5 yrs)$21,625
Fuel only$21,625
Per mile$0.29

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

2004 Chevrolet trailblazer ext trims & engines on record

Engines
4.2L 6-cyl

2004 Chevrolet trailblazer ext vehicles on record

2004 Chevrolet trailblazer ext 2004 Chevrolet trailblazer ext1GNET16S846197893

Other Chevrolet trailblazer ext model years

2006 2005 2003

2004 Chevrolet trailblazer ext — frequently asked questions

Does the 2004 Chevrolet trailblazer ext have any safety recalls?

NHTSA lists 1 recall campaign for the 2004 Chevrolet trailblazer ext. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are free.

What are the most common problems with the 2004 Chevrolet trailblazer ext?

Owners have filed 1,357 complaints with NHTSA; in a sample of the most recent, the most-reported problem areas are electrical system, exterior lighting, air bags.

What gas mileage does the 2004 Chevrolet trailblazer ext get?

The 2004 Chevrolet trailblazer ext has U.S. EPA estimates of 15–16 mpg combined, depending on engine and trim (4 versions).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.