New or Significantly Altered Models
- 2005 Chevrolet Cobalt Coupe
- All-new model based on GM's Delta platform. A 205hp SS Supercharged model is aimed at the tuner crowd. Other Cobalt coupes are powered by a 140hp 2.2L 4-cylinder.
- 2005 Chevrolet Cobalt Sedan
- All-new model based on GM's Delta platform. Cobalt replaces the Cavalier. All models are powered by a 140hp 2.2L 4-cylinder.
- 2005 Chevrolet Corvette
- Sixth generation (C6) Corvette is shorter, narrower with a longer wheelbase. Styling is edgier and features fixed headlamps. Under the hood, a 400-bhp 6.0L V-8 provides power. Transmission choices include the standard 6-speed manual and a 4-speed automatic. Optional Z51 performance package adds more aggressive tires, gearing and suspension tuning.
- 2005 Chevrolet Corvette Convertible
- Sixth generation (C6) Corvette convertible is shorter, narrower with a longer wheelbase. Styling is edgier and features fixed headlamps. A power-operated top offered. Under the hood, a 400-bhp 6.0L V-8 provides power. Transmission choices include the standard 6-speed manual and a 4-speed automatic. Optional Z51 performance package adds more aggressive tires, gearing and suspension tuning.
- 2005 Chevrolet Equinox
- All-new Equinox replaces the Suzuki-sourced Tracker as Chevrolet's compact SUV offering. Equinox is equipped with 3.4L V6 and 5-speed automatic transmission. Both FWD and AWD are offered
- 2005 Chevrolet Uplander
- New Uplander replaces the Venture in Chevrolet's lineup. The Uplander is a mid-sized van with SUV styling traits to broaden its appeal. A 200 hp 3500 V6 provides power. Both FWD and AWD models are offered.
Updated Models
- 2005 Chevrolet SSR
- The SSR enjoys a number of updates for its third model year. The 6.0L LS2 V8 provides 390hp and 405 lb-ft. There are now two transmission choices: a 4-speed automatic or six-speed manual -- both from the Corvette. A number of other smaller improvements include self-supporting hood struts and a new engine cover.
Mostly Unchanged
- 2005 Chevrolet Astro
- Unchanged.
- 2005 Chevrolet Avalanche
- OnStar and steering wheel radio controls are now standard equipment. Available power-adjustable pedals. 1500 series models get a standard 3.42 rear axle.
- 2005 Chevrolet Aveo Sedan
- Model lineup changed to Special Value Model, LS, and LT. Updated spoiler.
- 2005 Chevrolet Aveo Wagon
- Model lineup changed to Special Value Model, LS, and LT. Updated spoiler.
- 2005 Chevrolet Blazer
- The 2-door Blazer is the sole remaining model offered to the general public.
- 2005 Chevrolet Blazer
- Four-door models are only available for fleets and commercial customers.
- 2005 Chevrolet Cavalier Coupe
- 2005 Chevrolet Cavalier Sedan
- 2005 Chevrolet Colorado Crew Cab
- 2005 Chevrolet Colorado Extended Cab
- 2005 Chevrolet Colorado Regular Cab
- 2005 Chevrolet Express
- StabiliTrak becomes standard on regular wheelbase passenger vans.
- 2005 Chevrolet Impala
- Standard OnStar. New headrests on front buckets seats for the SS. All models get gold bowtie insignia.
- 2005 Chevrolet Malibu
- New appearance package for the Malibu base sedan featuring body-color side moldings, 15-inch alloy wheels and a rear spoiler.
- 2005 Chevrolet Malibu Maxx
- New optional rear spoiler and rear window wiper
- 2005 Chevrolet Monte Carlo
- Model lineup changed to LS, LT, and Supercharged SS. The LT replaces the SS model. Standard OnStar
- 2005 Chevrolet Silverado 1500 Crew Cab
- 2005 Chevrolet Silverado 1500 Extended Cab
- 2005 Chevrolet Silverado 1500 Regular Cab
- Silverado 1500 extended cab will offer a hybrid version. Higher output 310-hp Vortec 5300 appears in some models. A power sunroof will be offered in some models later in the model year.
- 2005 Chevrolet Suburban
- OnStar is standard. Upgraded alternator. Rear liftgate features lift-up glass on all models. 3.42 axle ratio on all 1/2 ton models. Z71 package now available with RWD.
- 2005 Chevrolet Tahoe
- OnStar is standard. Upgraded alternator. Rear liftgate features lift-up glass on all models. Z71 package now available with RWD.
- 2005 Chevrolet Trailblazer
- New optional pillar-mounted side airbag system replaces seat-mounted system. Standard OnStar.
- 2005 Chevrolet Trailblazer EXT
- New optional pillar-mounted side airbag system replaces seat-mounted system. Standard OnStar. Optional Vortec 5300 now features Displacement on Demand which can increase fuel efficiency by up to 8 percent.
- 2005 Chevrolet Venture LWB
- A short model run for 2005 as the production of the new Uplander ramps up. Only the long wheelbase model will be offered. A new optional LS touring package features 225/60R16 tires and a firmer suspension.