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The GMC Envoy is a mid-size SUV manufactured and marketed by General Motors for the 1998 to 2009 model years over two generations. Adopting a nameplate used by GM Canada, the Envoy was phased in as a trim variant of the GMC Jimmy alongside the similar Chevrolet TrailBlazer.
The GMC Envoy is a mid-size SUV manufactured and marketed by General Motors for the 1998 to 2009 model years over two generations. Adopting a nameplate used by GM Canada, the Envoy was phased in as a trim variant of the GMC Jimmy alongside the similar Chevrolet TrailBlazer. The second generation of the GMC Envoy replaced the Jimmy outright, again sharing a common platform with the Trailblazer; General Motors also marketed the chassis architecture under various other nameplates, including the Oldsmobile Bravada, Buick Rainier, Isuzu Ascender, and Saab 9-7X. General Motors assembled the model line at its Moraine Assembly (Moraine, Ohio) and Oklahoma City Assembly (Oklahoma City, Oklahoma). Both facilities were closed by 2008, leading to the discontinuation of the model line. The Envoy was not directly replaced in the GMC model line as General Motors transitioned its smaller SUVs to unibody-chassis designs, introducing the smaller GMC Terrain and larger GMC Acadia.
The first generation GMC Envoy was introduced for the 1998 model year. Introduced a year before the Chevrolet TrailBlazer, the Envoy was the highest-trim version of the GMC Jimmy SUV. In line with the Oldsmobile Bravada, the Envoy was fitted with a leather-trim interior, floor-mounted shifter, and a largely monochromatic exterior with aluminum-alloy wheels. In line with the TrailBlazer and the Bravada, the Envoy trim was offered only in the five-door version. The Envoy had many extra features not available on the regular Jimmy 4-door including: a remote trunk release, heated driver's and passenger's seats, a Bose sound system, and High Intensity Discharge headlights. Optional features included: a power sunroof, a panic alarm, an anti-theft system, and a power front driver & passenger seat. GMC ended sales of the first generation Envoy after the 2000 model year as the division adopted the name to replace the entire Jimmy SUV line for 2002.
Safety features The 1998-2000 GMC Envoy had a four-wheel antilock braking system standard as well as standard front driver and passenger airbags. However, the Envoy received a Poor rating in the IIHS frontal offset crash test.
The second generation GMC Envoy was introduced in early 2001 as a 2002 model (skipping the 2001 model year). In line with the Chevrolet Trailblazer replacing the Chevrolet (S-10) Blazer, the 2002 Envoy replaced the GMC Jimmy five-door. The Envoy was Motor Trend magazine's Sport/Utility of the Year for 2002. The 4200 Vortec 4200 engine I6 engine was named one of Ward's 10 Best Engines from 2002 to 2005.
Chassis The second generation GMC Envoy uses the body-on-frame GMT360 chassis architecture. Ending its commonality with GM compact pickup trucks, the GMT360 chassis was designed from the ground up for SUV use. The frame rails are hydroformed and fully boxed for their entire length. The wheelbase grew to 113 inches (six inches longer than the first generation); for the first time, an extended-wheelbase version was introduced with a 129-inch wheelbase length (1 inch shorter than the GMC Yukon XL). The front suspension used a double-wishbone independent configuration with Bilstein shock absorbers. The rear suspension featured a 5-link solid rear axle; load-leveling air suspension was an option for the rear axle. The second-generation Envoy adopted four-wheel disc brakes as standard equipment.
Powertrain For its 2002 debut, the GMT360 Envoy received an all-new standard engine, with a Vortec 4200 4.2L inline-6 replacing the previous 4.3L V6. The first inline-6 from GM in North America since 1984, the "Atlas" engine produced 270 hp (80 more than its V6 predecessor). Beginning in 2003, the Envoy XL could be equipped with an optional 290 hp 5.3L V8. For 2005, the 5.3L V8 was updated to include the Displacement on Demand variable-displacement system (using 4 of 8 cylinders during low-load situations), increasing output to 300 hp. Alongside a standard rear-wheel drive layout, the GMT360 Envoy was offered with either permanent 2-wheel drive or a 4x4 "Shift On-Demand" system, offering 2-wheel drive, Automatic 4-wheel drive, and High-range and Low-range 4-wheel drive (the latter, in 2.69:1 reduction). Two rear axles were offered, a rear "Posi-Trac" limited-slip differential and an Eaton automatic rear locking differential.
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