Skip to content
CarCareTruth

Coming Soon

Chevrolet Trailblazer GMT360 (Mid-size SUV)

2002–2009 · GMT360 · suv

Body-on-frame mid-size SUV on GM's GMT360 platform (siblings: GMC Envoy, Buick Rainier, Isuzu Ascender, Saab 9-7X, Oldsmobile Bravada). 4.2L LL8 Atlas inline-six (270-291 hp) standard; 5.3L LH6/LS V8 optional; 6.0L LS2 V8 in the 2006-2009 Trailblazer SS (390 hp). EXT long-wheelbase 2002-2006. Note: this is a different vehicle from the 2020+ Trailblazer crossover that revived the name.

Watch out: 4.2L Atlas I6 has well-documented timing-chain tensioner and valve-seat wear issues; instrument cluster gauge-needle failures (stuck/jumping gauges) are nearly universal — a $200-$400 cluster rebuild is the standard fix.

What your Trailblazer takes

The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.

  • Wiper blades22" driver · 22" passenger · 16" rear✓ VerifiedView
  • BatteryGroup 78 · 600 CCA min✓ VerifiedView
  • Oil filterParts in catalogShop
  • Tire sizeNot catalogued yetFind yours soon
  • Engine oilNot catalogued yetFind yours soon
  • Engine air filterNot catalogued yetFind yours
  • Cabin air filterNot catalogued yetFind yours
  • Spark plugsNot catalogued yetFind yours soon
  • Headlight bulbsNot catalogued yetFind yours soon
  • CoolantNot catalogued yetFind yours soon
  • Brake fluidNot catalogued yetFind yours soon
  • Transmission fluidNot catalogued yetFind yours soon
  • Tire pressureNot catalogued yetFind yours soon
  • Key fob batteryNot catalogued yetFind yours soon
  • Power steering fluidNot catalogued yetFind yours soon
  • Differential fluidNot catalogued yetFind yours soon
  • Serpentine beltNot catalogued yetFind yours soon
  • Brake padsNot catalogued yetFind yours soon
  • Wheel fitmentNot catalogued yetFind yours soon
  • Brake rotorsNot catalogued yetFind yours soon
  • ThermostatNot catalogued yetFind yours soon
  • A/C refrigerantNot catalogued yetFind yours soon
  • Fuel filterNot catalogued yetFind yours soon

Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.

← Back to all vehicles