1999-2006 Chevrolet Silverado: Year-to-Year Changes

2000 Chevrolet Silverado: A fourth door, on the driver's side, became available for extended-cab pickups, to supplement the standard right-side door. Silverados came in base, LS, and LT trim, with rear- or 4-wheel drive and a regular or extended cab. Both cab styles could be fitted with a flush-fender Fleetside cargo bed. The 6.5-foot flare-fendered Sportside box was available on certain LT models. Each of the two V8 engines gained 15 horsepower. A new self-dimming inside mirror went in LS and LT trucks. Power locks on those models could now be programmed to lock and unlock according to individual driver preferences. New options included wheel flares for 4x4s and a factory-installed cargo bed cover.

2001 Chevrolet Silverado: Traction control became optional for 2WD models with a V8 and automatic. A new plastic composite cargo box was optional for extended-cab 4x4 pickups with the Z71 offroad package. An automatic transmission now was standard in extended-cab trucks, which added three child-seat tethers to the back seat. GM's OnStar emergency/communications system became optional in LT editions. GMC added a sporty C3 version this year, with a bigger V8 engine, but Chevrolet did not get an equivalent. Early in 2001, both Chevrolet and GMC began to offer a new Crew Cab body style with four front-opening side doors.

2002 Chevrolet Silverado: GM's Quadrasteer 4-wheel-steering system was offered on extended-cab 2WD and 4WD models this year. It was designed to provide a tighter turning radius by turning the rear wheels counter to the fronts at low speeds and to aid stability by turning the rear wheels in the same direction as the fronts at higher speeds.

2003 Chevrolet Silverado: Silverados got a revised grille among other cosmetic changes. Dual-zone climate control was newly standard. Crew Cabs added optional rear DVD entertainment, and XM satellite radio was newly available for most models. Top-line LT versions included OnStar assistance. Added midyear, the Silverado SS was a short-bed extended cab with a 345-hp 6.0 V8, all-wheel drive, 20-inch wheels, performance tires, and special trim.

2004 Chevrolet Silverado: Now standard on '04 base level Silverados include cruise control, power locks, and a CD player. Also new for '04 is a light-duty Crew Cab version, which will use the 5.3-liter V8, which is optional on Regulars and Extendeds.

2005 Chevrolet Silverado: A 310-hp 5.3 V8 is a new option for short-box extendeds above the normal 295-hp unit. All Silverados have antilock brakes, but drums now replace rear discs except for models equipped with the hybrid system or Quadrasteer 4-wheel steering. Seventeen-inch wheels are now standard on most other models.

2006 Chevrolet Silverado: No significant changes for '06 Silverados.