Secondary Latch System - GMC Sierra Classic 2007 Owner's Manual

Secondary Latch System

Your vehicle has an underbody-mounted tire hoist
assembly that has a secondary latch system. It
is designed to stop the spare tire from suddenly
falling off your vehicle. For the secondary latch to
work, the spare must be installed with the valve
stem pointing down. See Storing a Flat or
Spare Tire and Tools on page 580.
CAUTION:
{
Before beginning this procedure read all
the instructions. Failure to read and follow
the instructions could damage the hoist
assembly and you and others could get
hurt. Read and follow the instructions
listed next.
576
To release the spare tire from the secondary latch,
do the following:
1. Check under the vehicle to see if the cable
end is visible.
If the cable is not visible, proceed to Step 6.
2. If it is visible, first try to tighten the cable by
turning the wheel wrench clockwise until you
hear two clicks or feel it skip twice. You
cannot overtighten the cable.
3. Loosen the cable by turning the wheel wrench
counterclockwise three or four turns.