The Buick Rainier is a mid-size SUV from General Motors. Introduced for 2004 to replace the Oldsmobile Bravada, the Rainier is the first truck sold under the Buick marque (the unibody Rendezvous might also qualify) since the 1920s, and is the first body-on-frame V8-powered Buick since the 1996 Roadmaster. The Rainier (and Rendezvous) were replaced by a new crossover SUV, the Enclave, on the GM Lambda platform for 2008.
The Rainier was only available in a 5-passenger bodystyle, but was one of the three GMT360 truck to offer V8 power in this configuration with the GMC Envoy Denali and Chevrolet TrailBlazer SS. Both rear and all wheel drive models are offered. An upscale CXL trim added a better Bose stereo and XM Satellite Radio.
Buick also debuted the QuietTuning concept of acoustic control on the Rainier. Buick's QuietTuning involves designing a vehicle with sound dampening features like triple door seals, acoustic laminate glass, and thicker sound-absorbing pads on the hood and firewall.
- 2004-2007 LL8 4.2 L (256 in³) I6
- 2004-2007 5300 5.3 L (323 in³) V8