2008 Cadillac STS Owner's Manual - Page 311

Dolly Towing (STS-V) Notice: Dolly towing or dinghy towing your vehicle may cause damage because of reduced ground clearance. Always put your vehicle on a flat-bed truck. If you have an STS-V, it can only be towed on a flat-bed trailer. Dolly Towing (All-Wheel-Drive Vehicles) Notice: Towing an all-wheel-drive vehicle with all four wheels on the ground, or even with only two of its wheels on the ground, will damage drivetrain components. Do not tow an all-wheel-drive vehicle if any of its wheels will be on the ground. If you have an All-Wheel Drive (AWD) vehicle, it can only be towed on a flat-bed trailer. If your vehicle is a rear-wheel drive, it can be towed using a dolly. To tow your vehicle using a dolly, follow these steps: 1. Put the rear wheels on the dolly. 2. Put the vehicle in PARK (P). 3. Set the parking brake and then remove the key. 4. Clamp the steering wheel in a straight-ahead position with a clamping device designed for towing. 5. Release the parking brake. 4-33