From the owners manual, Page 10-70:
To tow the vehicle from the front with all four wheels on the ground:
1. Position the vehicle that will be towed and secure it to the towing vehicle.
2. Turn the ignition key to ON/RUN.
3. Shift the transmission to N (Neutral).
4. Turn the ignition key to ACC/ACCESSORY.
5. Turn all accessories off.
6. To prevent the battery from draining while the vehicle is being towed, remove fuse 32, the Discrete Logic Ignition Switch fuse, from the instrument panel fuse block and store it in a safe location. See Instrument
Panel Fuse Block on page 10‑35.
Notice: If the vehicle is towed without performing each of the steps listed under “Dinghy Towing,” the automatic transmission could be damaged.
Be sure to follow all steps of the dinghy towing procedure prior to and after towing the vehicle.
Notice: If 105 km/h (65 mph) is exceeded while towing the vehicle, it could be damaged. Never exceed 105 km/h (65 mph) while towing the vehicle.
Once the destination has been reached:
1. Set the parking brake.
2. Shift the transmission to P (Park).
3. Turn the ignition key to LOCK/OFF.
4. Install fuse 32, the Discrete Logic Ignition Switch fuse. See Instrument Panel Fuse Block on page 10‑35.
5. Start the engine and let it idle for more than three minutes before driving the vehicle.
Notice: Too much or too little fluid can damage the transmission. Be sure that the transmission fluid is at the proper level before towing with all four
wheels on the ground.
Notice: Do not tow a vehicle with the front drive wheels on the
ground if one of the front tires is a compact spare tire. Towing with two different tire sizes on the front of the vehicle can cause severe damage to the transmission.
Hope that helps...
Joe and Debbie, Emma the Aussie Cattle Dog who adopted us
2012 Discovery 36J, Blue Ox and Air Force One, 2010 GMC Acadia Toad
USAF (Ret) WDØM http://wd0m.com