Years
2004-2012
Drivetrain
RWD (4x2) · 4WD (4x4)
Engines
2.8 L LK5 · 2.9 L LLV · 3.5 L L52
Sold in
US · Canada · Mexico

Spec sheet

Generation
1st Gen
Production
2004–2012

Production: October 2003 to August 2012.

Assembly
  • Shreveport, LA
  • Rayong, Thailand (export)
Sold in
  • US
  • Canada
  • Mexico
  • Thailand / global (Holden Colorado in Australasia)
Codes
  • GMT355 platform
Body styles
  • Regular cab
  • Extended cab
  • Crew cab
Bed lengths
  • 6 ft (regular/extended cab)
  • 5 ft (crew cab)
Drivetrains
  • RWD (4x2)
  • 4WD (4x4)
Transmissions
  • 5-speed Aisin AR-5 manual
  • 4-speed 4L60-E automatic
Trims
  • Base / WT
  • LS
  • LT
  • Z85 (standard suspension)
  • Z71 (off-road; G80 locking rear diff)
  • ZQ8 sport suspension (4x2 only, 17-in wheels)
  • Xtreme (ZQ8-based appearance package)
  • Sport (5.3 V8 with sport suspension, by 2010)
Width
68 in
Payload
Up to 1,603 lb (2010 Z85; 1,520 lb Z71, 1,129 lb Sport)
Towing
Up to 6,000 lb (2010, 5.3 V8)

Engines

EngineDisp.ConfigHPTorqueYears
2.8 L LK52.8 L (171 cu in)I4175185 lb-ft @28002004-2006
2.9 L LLV2.9 L (177 cu in)I4185190 lb-ft @28002007-2012
3.5 L L523.5 L (214 cu in)I5220225 lb-ft @28002004-2006
3.7 L LLR3.7 L (223 cu in)I5242242 lb-ft2007-2012
5.3 L LH8/LH95.3 L (325 cu in)V8300320 lb-ft @40002009-2012

Related

Overview

Developed by GM North America, GM Brazil and Isuzu, the Colorado entered production in October 2003 and replaced the S-10 for 2004 on the GMT355 platform, which also underpins the Hummer H3. Regular, extended and crew cab bodies were offered, with 6-foot beds on regular and extended cabs and a 5-foot bed on the crew cab.

Launch engines were a 2.8-liter four and a 3.5-liter five-cylinder. For 2007 the trucks were facelifted and received the 2.9-liter four and 3.7-liter five that replaced the earlier engines after head problems, and in 2009 a 5.3-liter V8 making 300 hp joined the lineup.

Trims were Base/WT, LS and LT (Canyon: Canyon, SLE, SLT). Z71 added off-road suspension with a locking rear differential, while ZQ8 and Xtreme were lowered street packages continued from the S-10. US sales peaked at 163,204 in 2005. Production ended in 2012 and a new-generation Colorado returned for 2015.

Trims, Bodies and Drivetrains

Trims

  • Base / WT
  • LS
  • LT
  • Z85 (standard suspension)
  • Z71 (off-road; G80 locking rear diff) — Off-Road suspension package with the automatic locking rear differential standard (2010)
  • ZQ8 sport suspension (4x2 only, 17-in wheels)
  • Xtreme (ZQ8-based appearance package)
  • Sport (5.3 V8 with sport suspension, by 2010)

Cab and bed

  • Body styles: Regular cab, Extended cab, Crew cab
  • Beds: 6 ft (regular/extended cab), 5 ft (crew cab)

Drivetrain and transmissions

  • Drivetrains: RWD (4x2), 4WD (4x4)
  • 5-speed Aisin AR-5 manual
  • 4-speed 4L60-E automatic

Highlights

  • Sales peaked in 2005 at 163,204 units, beating the Ranger
  • Facelift for 2007 introduced the 2.9 L I4 and 3.7 L I5 "due to numerous head problems" in the original engines
  • 5.3 L V8 added for 2009 (300 hp)
  • Colorado and Canyon share a GMT355 platform with Isuzu D-Max and Hummer H3

Known Issues

  • Original 2.8 L / 3.5 L engines had head problems (Wikipedia, re: reason for 2007 2.9 / 3.7 introduction).

Sources