All-Wheel-Drive
All-wheel drive (AWD) helps maximize traction on different road conditions, including wet, snowy, rough or dry. The key component in the system is a viscous coupler that is used to link the back wheels to the front wheels. If the front wheels start to slip, power will be transferred to the rear wheels to maintain control on various road surfaces.
How it worksAWD transfers torque to all wheels when the system senses a drive-wheel slipping. AWD power flows from the engine into the transmission, and then into a transfer case. The transfer case, which may be part of the transmission or bolted onto the end of the transmission, shifts power to both ends of the vehicle through driveshafts. The driveshafts then turn the differential units in the axles. The differentials split the power between the two wheels at one end of the vehicle, causing the wheels to drive.
2007 Model Availability [2008 Coming Soon]
| Buick | Ranier, Rendezvous, Terraza |
| Cadillac | SRX, STS, Escalade, Escalade EXT, Excalade ESV |
| Chevrolet | Equinox, Express, TrailBlazer SS, Uplander Ext. LT Ent AWD |
| GMC | Savana, Sierra Denali, Denali, XL Denali |
| Hummer | H2, H3 |
| Pontiac | Montana, Vibe |
| Saab | 9-2, 9-7X |
| Saturn | Relay, Vue |