1997 GMC Sonoma Owner's Manual - Page 207

When your vehicle is being towed, have the ignition key turned to the OFF position. The steeringwheel should be clamped in a straight-ahead position with a clamping device designed for towing service. Do not use the vehicle's steering column lock for this.The transmission should be in NEUTRAL (N) and the transfer case, if you have one, should be in 2HI. The parking brake should be released. I If your vehicle has a floor mounte,d shifter and no electrical power, the electrical solenoid lock must be overridden to shift from PARK (P) to NEUTRAL (N). Follow these steps: 1. Push the base of the leather shift lever boot forward with your thumb. 3. Move the solenoid levertoward the driver's side to unlock it. 2. Lift the boot and find the white solenoid lever. 4. While holding the solenoid lever in the unlock position, press the shift lever button and shift into NEUTRAL (N). 5. Release the solenoid lever and snap the boot back into place. Don't have your vehicle towed on the drive wheels unless you must. If the vehicle must be towed on the drive wheels, be sure to follow the speed and distance restrictions later in this section or your transmission will be damaged. If these limitations must be exceeded, then the drive wheels have to be supported on a dolly. 5-9