GMC 2003 Sierra - Manual (Page 463)

To release the spare Tire irom (he aeceniiqjy latch dn
the follO(rt/irig:
1. Checii under (he vehicle to see if the cable end is
visible.
2r (f it Is not visible, proceed to Step 6.
If it FS visible, first [r^ (o tighten the cable by turning
the wheel wrench clockwise unlti yog hear two
cUtks or fsel it skip twice. You cannot overtighten
the cable,
3, Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. Repeal this procedure at least I wo liitpes, If the
spare tire lowers to Ihg ground, continue with
Step 4 of "Removing Your Spare Tire and TooEs”
earlier in this section*
5. Tom the wrench couriterclockwise until
appioxiTTialely si)i Inches fl5 ot cable Is
exposed.
e. Stand the wheel blocks
on their shortest ends,
with ihe backs
facing each other.
7. Hook (he bottom edge of the jacit on the wheel
bJocks, separating them SO that the |QCh Is
balanced securely.
S. Attach ths jack handle, extension, and wheel
wrench to the jack and place It (with the wheel
blocks} under the vehicle towards Ihe front of the
rear burtiper. Poaition the center tifl point of the jack
under the center of the spare trre.
5-es