Pontiac Sunbird Owner's Manual page 186

Compact Spare TiE
Although the compact spare was fully
inflated when your vehicle was new, it
can lose air after a time. Check the
inflation pressure regularly. It should be
60 psi (420 kPa). The compact spare is
made to go up to 3,000 miles (5 000 km),
so you can finish your trip and have
your full-size tire repaired or replaced
where you want. Of course, it's best to
replace your spare with a full-size tire as
soon as you can. Your spare will last
longer and be in good shape in case you
need it again.
Your anti-lock brake system warning
light may come on when you are driving
with a compact spare. See the Index
under Anti-Lock Brake System Warning
Light.
Don't take your compact spare
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails.
That can damage the tire and
wheel, and maybe other parts of
your vehicle.
Don't use your compact spare on some
other vehicle.
And don't mix your compact spare or
wheel with other wheels or tires. They I
won't fit. Keep your spare and its wheel
together.
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