Secondary Latch System - GMC 2004 Yukon XL Owner's Manual

Yukon XL
A. Jack
B. Wheel Blocks
C. Wing Nut Holding
Tire Blocks
D. Mounting Bracket
E. Removable Tray
5-100
F. Retaining Hook
G. Retaining Bracket and
Wing Nut
H. Tool Kit with
Jack Tools

Secondary Latch System

Your vehicle has an underbody mounted tire hoist
assembly equipped with a secondary latch system.
It's 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, Jack and Tools"
earlier in this section.
CAUTION:
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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 below.