Chevrolet 2006 Tahoe Owner's Manual page 347

Four-Wheel-Drive Vehicles (NP8)
Use the following procedure to tow your vehicle:
1. Shift the transmission to PARK (P).
2. Turn the engine off, but leave the ignition on.
3. Firmly set the parking brake.
4. Securely attach the vehicle being towed to the
tow vehicle.
CAUTION:
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Shifting a four-wheel-drive vehicle's transfer
case into NEUTRAL can cause your vehicle to
roll even if the transmission is in PARK (P).
You or others could be injured. Make sure the
parking brake is firmly set before you shift the
transfer case to NEUTRAL.
5. Shift the transfer case to NEUTRAL (N). See
Four-Wheel Drive on page 2-26 for the proper
procedure to select the NEUTRAL (N) position for
your vehicle.
6. Release the parking brake only after the
vehicle being towed is firmly attached to the
towing vehicle.
7. Turn the ignition off.
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.
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