Chevrolet 2006 Avalanche, Owner'S Manual

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6. Shift the transfer case to NEUTRAL (N). See
Four-Wheel Drive on page 2-35 for the proper
procedure to select the neutral position for your
vehicle.
7. Release the parking brake only after the vehicle
being towed is firmly attached to the tow vehicle.
8. Turn the ignition off to lock the steering column.
If the tow vehicle will not be started or driven for
six weeks or more, remove the battery cable
from the negative terminal (post) of the battery to
prevent your battery from draining while towing.
Level Control
The self-adjusting rear suspension may come as part of
the premium smooth ride suspension package.
This type of level control will provide a leveled riding
position as well as improved handling under a variety of
passenger and loading conditions. A hydraulic pump
inside each rear shock absorber raises the rear of
the vehicle to the proper height, based on inputs from
the road surface, while the vehicle is being driven. It take
approximately 2 miles (3.2 km) of driving for the
leveling to complete, depending on the road surface
conditions.
If the loaded vehicle is not moved for approximately
12 hours, the leveling system may bleed down to a lower
height. This can be especially apparent if a trailer is
left attached to a parked vehicle for long periods of time.
The vehicle must be driven to re-level the vehicle.
If a weight-distributing hitch is being used, the vehicle
should be driven approximately 2 miles (3.2 km) with the
trailer prior to adjusting the hitch.
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