Secondary Latch System - GMC Yukon 2012 Owner's Manual

10-84 Vehicle Care

Secondary Latch System

This vehicle has an
underbody-mounted tire hoist
assembly equipped with 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 under Tire Changing on
page 10 72.
WARNING
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.
To release the spare tire from the
secondary latch:
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.
I n f o r ma t i o n P r o v i d e d b y :
3. Loosen the cable by turning the
wrench counterclockwise three
or four turns.
4. Repeat this procedure at least
two times. If the spare tire
lowers to the ground, continue
with Step 5 under Removing the
Spare Tire and Tools under Tire
Changing on page 10 72.
5. If the spare does not lower, turn
the wrench counterclockwise
until approximately 15 cm (6 in)
of cable is exposed.
6. Stand the wheel blocks on their
shortest ends, with the backs
facing each other.