Page 225 of 372
9. Position the jack and raise the jack head until it fits
firmly against the sheet metal next to the word
JACK. Do not raise the vehicle yet. Put the compact
spare near
you.
10. Raise the vehicle by rotating the wheel wrench
clockwise in the jack. Raise the jack far enough
so
there’s enough room for the spare tire to fit.
ProCarManuals.com
Page 226 of 372
I NOTICE:
Raising your vehicle with the jack improperly
positioned will damage the vehicle or may allow
the vehicle to fall off the jack. Be sure to fit the
jack lift head into the proper location before
raising your vehicle.
11. Remove all the wheel nuts and take off the flat tire.
/- 7--.. 12. Remove any rust or
dirt
from the wheel
bolts, mounting
surfaces and spare
wheel. Place the
spare on the wheel
mounting surface.
5-26
ProCarManuals.com
Page 227 of 372
13. Replace the
wheel
nuts with the
rounded end of the
nuts toward the
wheel. Tighten
each nut by hand
until the wheel is
held against the
hub.
14. Lower the vehicle by rotating the wheel wrench
counterclockwise on the jack. Lower the jack
completely. 15. In
a crisscross sequence,
tighten the wheel nuts
firmly.
5-27
ProCarManuals.com
Page 228 of 372
Don’t try to put the wheel cover on the compact spare tire.
It won’t fit. Store the wheel cover
in the trunk until you
have replaced the compact spare tire with a regular tire.
NOTICE:
Wheel covers won’t fit on your compact spare. If
you try to put a wheel cover on your compact
spare, you could damage the cover or the
1 spare.
16. Store the flat tire as far forward in the trunk as
possible. Store the jack and wheel wrench in their
compartment in the trunk.
The compact spare tire is for temporary use only.
Replace the compact spare tire with a full-size tire as
soon as you can. See “Compact Spare Tire’’ later in this
section.
5-28
ProCarManuals.com
Page 229 of 372

Compact Spare Tire
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). After installing the compact spare on your
vehicle, you should stop
as soon as possible and make
sure your spare tire is correctly inflated. The compact
spare is made
to perform well at posted speed limits for
distances 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.
NOTICE:
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 won’t fit. Keep your spare and its
wheel together.
I NOTICE:
Tire chains won’t fit your compact spare. Using
them will damage your vehicle and destroy the
chains too. Don’t use tire chains on your compact
spare.
5-29
ProCarManuals.com
Page 230 of 372

If You’re Stuck: In Sand, Mud, Ice or
Snow I NOTICE:
Spinning your wheels can destroy parts of your
vehicle as well as the tires. If you spin the wheels
too fast while shifting your transaxle back and
forth, you can destroy your transaxle. What you don’t want to do when your vehicle is stuck is
to spin your wheels too fdst. The method known
as
“rocking” can help you get out when you’re stuck, but
you must use caution.
For information about using tire chains on your vehicle,
see “Tire Chains’’
in the Index.
Rocking Your Vehicle to Get It Out:
First, turn your steering wheel left and right. That will
clear the area around your front wheels. You should turn
your traction control system
off. (See ”Traction Control
System”
in the Index.) Then shift back and forth
between REVERSE
(R) and a forward gear, spinning the
wheels
as little as possible. Release the accelerator pedal
while you shift, and press lightly
on the accelerator
pedal when the transaxle
is in gear. If that doesn’t get
you out after
a few tries, you may need to be towed out.
If you do need to be towed out, see “Towing Your
Vehicle”
in the Index.
5-30
ProCarManuals.com
Page 231 of 372
@ Section 6 Service and Appearance Care
Here you will find information about the care of your
Aurora. This section begins with service and fuel
information, and then it shows how to check important
fluid and lubricant levels. There is
also technical
information about your vehicle, and a part devoted to its
appearance care.
Service
Your Aurora retailer knows your vehicle best and wants
you
to be happy with it. We hope you’ll go to your
retailer for
all your service needs. You‘ll get genuine
GM parts and GM-trained and supported service people. We
hope you’ll want
to keep your GM vehicle all GM.
Genuine
GM parts have one of these marks:
Doing Your Own Service Work
If you want to do some of your own service work, you’ll
want to get the proper Aurora Service Manual. It tells
you much more about how to service your Aurora than
this manual can.
To order the proper service manual, see
“Service Publications’‘
in the Index.
6-1
ProCarManuals.com
Page 232 of 372

Your vehicle has an air bag system. Before attempting to
do your own service work, see “Servicing Your Air
Bag-Equipped Aurora” in the Index.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. See “Maintenance Record” in the Index.
I NOTICE: 1
If you try to do your own service work without
knowing enough about it, your vehicle could be
damaged.
Fuel
Use premium unleaded gasoline rated at 91 octane or
higher. It should meet specifications ASTM D48 14 in
the United States and CGSB 3.5-92 in Canada. These
fuels should have the proper additives,
so you should not
have to add anything to the fuel.
In the United States and Canada, it’s easy
to be sure you
get the right kind of gasoline (unleaded). You’ll see
UNLEADED right on the pump. And only unleaded
nozzles will fit into your vehicle’s filler neck.
Be sure the posted octane is at least 91. If the octane is
less than
91, you may get a heavy knocking noise when
you drive. (In an emergency, you may be able to use
lower octane
-- as low as 87 -- if heavy knocking does
not occur.) If you’re using 91 or higher octane unleaded
gas and
you still get heavy knocking, your engine needs
service.
6-2
ProCarManuals.com