2011 CADILLAC STS inflation pressure

Black plate (64,1)Cadillac STS Owner Manual - 2011
TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code.
Any time you replace one or more of the TPMS sensors
or rotate your vehicle's tires, the identification codes will
need to be matched to the new tire/wheel position. The
sensors are matched to the tire/wheel positions in the
following order: driver side front tire, passenger side
front tire, passenger side rear tire, and driver side rear
tire using a TPMS diagnostic tool. See your dealer for
service.
The TPMS sensors may also be matched to each tire/
wheel position by increasing or decreasing the tire's air
pressure. When increasing the tire's pressure, do not
exceed the maximum inflation pressure indicated on the
tire's sidewall. If using this method to match TPMS
sensors, the complete procedure outlined below must
be performed within 15 minutes of the vehicle being
stationary.
To decrease air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air pressure
gauge, or a key.
You will have one minute to match the first tire/wheel
position, and five minutes overall, to match all four
tire/wheel positions. If it takes longer than one minute to
match the first tire and wheel, or more than five minutes
to match all four tire/wheel positions, the matching
process stops and you will need to start over.The TPM matching process is outlined below:
1. Set the parking brake.
2. Press the push-button ignition switch to Acc.
3. Using the keyless access transmitter, lock and unlock the vehicle's doors.
4. Press the lock and unlock buttons, at the same time, on the keyless access transmitter. The horn
sounds twice, indicating that the TPMS is ready,
and the sensor matching process can begin.
5. Start with the driver side front tire.
6. Remove the valve cap from the valve stem. Activate the TPMS sensor by increasing or
decreasing the tire's air pressure for five seconds,
or until a horn chirp sounds. The horn chirp, which
may take up to 30 seconds to sound, confirms that
the sensor identification code has been matched to
this tire position.
7. Proceed to the passenger side front tire, and repeat the procedure in Step 6.
8. Proceed to the passenger side rear tire, and repeat the procedure in Step 6.
9. Proceed to the driver side rear tire, and repeat the procedure in Step 6.
6-64

Black plate (66,1)Cadillac STS Owner Manual - 2011
When rotating P235/50R17 size tires or
255/45ZR18 size tires, always use the correct
rotation pattern shown here.
If the vehicle has a compact spare tire, do not
include the compact spare tire in the tire rotation.
After the tires have been rotated, adjust the front
and rear inflation pressures as shown on the Tire
and Loading Information label. SeeInflation - Tire
Pressure
on page 6‑58and Loading the Vehicleon
page 5‑23
.
Reset the Tire Pressure Monitor System. See Tire
Pressure Monitor Operation
on page 6‑62. Make certain that all wheel nuts are properly
tightened. See
“Wheel Nut Torque” under
Capacities and Specifications
on page 6‑128.
{WARNING:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the
vehicle. In an emergency, you can use a
cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later,
if needed, to get all the rust or dirt off. See
Changing a Flat Tire
on page 6‑94.
Lightly coat the center of the wheel hub with
wheel bearing grease after a wheel change or tire
rotation to prevent corrosion or rust build-up. Do
not get grease on the flat wheel mounting surface
or on the wheel nuts or bolts.
6-66

Black plate (67,1)Cadillac STS Owner Manual - 2011
When It Is Time for New Tires
Various factors, such as maintenance, temperatures,
driving speeds, vehicle loading, and road conditions
influence when you need new tires.
One way to tell when it is
time for new tires is to
check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining. SeeTire
Inspection and Rotation
on page 6‑65for
additional information.
The rubber in tires ages over time, even if they are not
being used. This is also true for the spare tire, if your
vehicle has one. Multiple conditions affect how fast this
aging takes place, including temperatures, loading
conditions, and inflation pressure maintenance. Tires
will typically need to be replaced due to wear before
they may need to be replaced due to age. Consult the
tire manufacturer for more information on when tires
should be replaced.
Vehicle Storage
Tires age when stored normally mounted on a parked
vehicle. Park a vehicle that will be stored for at least a
month in a cool, dry, clean area away from direct
sunlight to slow aging. This area should be free of
grease, gasoline or other substances that can
deteriorate rubber.
Parking for an extended period can cause flat spots on
the tires that may result in vibrations while driving.
When storing a vehicle for at least a month, remove the
tires or raise the vehicle to reduce the weight from the
tires.
Buying New Tires
GM has developed and matched specific tires for
your vehicle. The original equipment tires installed
on your vehicle, when it was new, were designed
to meet General Motors Tire Performance Criteria
Specification (TPC Spec) system rating. If you
6-67

Black plate (80,1)Cadillac STS Owner Manual - 2011
6. Plug the power plug (C) into the accessory poweroutlet in the vehicle. Unplug all items from other
accessory power outlets. See Accessory Power
Outlet(s) on page 4‑42.
If the vehicle has an accessory power outlet, do
not use the cigarette lighter.
If the vehicle only has a cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug cord in the door or
window.
7. Start the vehicle. The vehicle must be running while using the air compressor.
8. Press the on/off (D) button to turn the tire sealant and compressor kit on.
The compressor will inject sealant and air into
the tire.
The pressure gauge (E) will initially show a high
pressure while the compressor pushes the sealant
into the tire. Once the sealant is completely
dispersed into the tire, the pressure will quickly
drop and start to rise again as the tire inflates with
air only. 9. Inflate the tire to the recommended inflation
pressure using the pressure gauge (E). The
recommended inflation pressure can be found on
the Tire and Loading Information label. See
Inflation - Tire Pressure on page 6‑58.
The pressure gauge (E) may read higher than the
actual tire pressure while the compressor is on.
Turn the compressor off to get an accurate
pressure reading. The compressor may be turned
on/off until the correct pressure is reached.
Notice: If the recommended pressure cannot be
reached after approximately 25 minutes, the vehicle
should not be driven farther. The tire is too severely
damaged and the tire sealant and compressor kit
cannot inflate the tire. Remove the power plug from
the accessory power outlet and unscrew the
inflating hose from the tire valve. See Roadside
Service on page 8‑8.
10. Press the on/off button (D) to turn the tire sealant and compressor kit off.
The tire is not sealed and will continue to leak air
until the vehicle is driven and the sealant is
distributed in the tire, therefore, Steps 11 through
17 must be done immediately after Step 10.
Be careful while handling the tire sealant and
compressor kit as it could be warm after usage.
6-80

Black plate (81,1)Cadillac STS Owner Manual - 2011
11. Unplug the power plug (C) from the accessorypower outlet in the vehicle.
12. Turn the sealant/air hose (G) counterclockwise to remove it from the tire valve stem.
13. Replace the tire valve stem cap.
14. Replace the sealant/air hose (G), and the power plug (C) back in their original location.
15. If the flat tire was ableto inflate to the
recommended inflation
pressure, remove the
maximum speed label
from the sealant
canister (B) and place
it in a highly visible
location.
Do not exceed the speed on this label until the
damaged tire is repaired or replaced.
16. Return the equipment to its original storage location in the vehicle.
17. Immediately drive the vehicle 8 km (5 miles) to distribute the sealant in the tire. 18. Stop at a safe location and check the tire pressure.
Refer to Steps 1 through 11 under “Using the Tire
Sealant and Compressor Kit without Sealant to
Inflate a Tire (Not Punctured).”
If the tire pressure has fallen more than 68 kPa
(10 psi) below the recommended inflation
pressure, stop driving the vehicle. The tire is too
severely damaged and the tire sealant cannot seal
the tire. See Roadside Service on page 8‑8.
If the tire pressure has not dropped more than
68 kPa (10 psi) from the recommended inflation
pressure, inflate the tire to the recommended
inflation pressure.
19. Wipe off any sealant from the wheel, tire or vehicle.
20. Dispose of the used sealant canister (B) and sealant/air hose (G) assembly at a local dealer or
in accordance with local state codes and practices.
21. Replace it with a new canister available from your dealer.
22. After temporarily sealing a tire using the tire sealant and compressor kit, take the vehicle to an
authorized dealer within a 161 km (100 miles) of
driving to have the tire repaired or replaced.
6-81

Black plate (83,1)Cadillac STS Owner Manual - 2011
8. Plug the power plug (C) into the accessory poweroutlet in the vehicle. Unplug all items from other
accessory power outlets. See Accessory Power
Outlet(s) on page 4‑42.
If the vehicle has an accessory power outlet, do
not use the cigarette lighter.
If the vehicle only has a cigarette lighter, use the
cigarette lighter.
Do not pinch the power plug cord in the door or
window.
9. Start the vehicle. The vehicle must be running while using the air compressor.
10. Press the on/off (D) button to turn the compressor on.
The compressor will inflate the tire with air only.
11. Inflate the tire to the recommended inflation pressure using the pressure gauge (E). The
recommended inflation pressure can be found on
the Tire and Loading Information label. See
Inflation - Tire Pressure on page 6‑58. The pressure gauge (E) may read higher than the
actual tire pressure while the compressor is on.
Turn the compressor off to get an accurate
reading. The compressor may be turned on/off until
the correct pressure is reached.
12. Press the on/off button (D) to turn the tire sealant and compressor kit off.
Be careful while handling the tire sealant and
compressor kit as it could be warm after usage.
13. Unplug the power plug (C) from the accessory power outlet in the vehicle.
14. Disconnect the air only hose (F) from the tire valve stem, by turning it counterclockwise, and replace
the tire valve stem cap.
15. Replace the air only hose (F) and the power plug (C) back in its original location.
16. Place the equipment in the original storage location in the vehicle.
6-83

Black plate (90,1)Cadillac STS Owner Manual - 2011
10. Inflate the tire to the recommended inflationpressure using the pressure gauge (C). The
recommended inflation pressure can be found on
the Tire and Loading Information label. See
Inflation - Tire Pressure on page 6‑58.
The pressure gauge (C) may read higher than the
actual tire pressure while the compressor is on.
Turn the compressor off to get an accurate
pressure reading. The compressor may be turned
on/off until the correct pressure is reached.
Notice: If the recommended pressure cannot be
reached after approximately 25 minutes, the vehicle
should not be driven farther. The tire is too severely
damaged and the tire sealant and compressor kit
cannot inflate the tire. Remove the power plug from
the accessory power outlet and unscrew the
inflating hose from the tire valve. See Roadside
Service on page 8‑8.
11. Press the on/off button (B) to turn the tire sealant and compressor kit off.
The tire is not sealed and will continue to leak air
until the vehicle is driven and the sealant is
distributed in the tire, therefore, Steps 12 through
18 must be done immediately after Step 11.
Be careful while handling the tire sealant and
compressor kit as it could be warm after usage. 12. Unplug the power plug (H) from the accessory
power outlet in the vehicle.
13. Turn the sealant/air hose (F) counterclockwise to remove it from the tire valve stem.
14. Replace the tire valve stem cap.
15. Replace the sealant/air hose (F), and the power plug (H) back in their original location.
16. If the flat tire was ableto inflate to the
recommended inflation
pressure, remove the
maximum speed label
from the sealant
canister (E) and place
it in a highly visible
location.
Do not exceed the speed on this label until the
damaged tire is repaired or replaced.
17. Return the equipment to its original storage location in the vehicle.
18. Immediately drive the vehicle 8 km (5 miles) to distribute the sealant in the tire.
6-90

Black plate (91,1)Cadillac STS Owner Manual - 2011
19. Stop at a safe location and check the tire pressure.Refer to Steps 1 through 11 under “Using the Tire
Sealant and Compressor Kit without Sealant to
Inflate a Tire (Not Punctured).”
If the tire pressure has fallen more than 68 kPa
(10 psi) below the recommended inflation
pressure, stop driving the vehicle. The tire is too
severely damaged and the tire sealant cannot seal
the tire. See Roadside Service on page 8‑8.
If the tire pressure has not dropped more than
68 kPa (10 psi) from the recommended inflation
pressure, inflate the tire to the recommended
inflation pressure.
20. Wipe off any sealant from the wheel, tire, and vehicle.
21. Dispose of the used sealant canister (E) and sealant/air hose (F) assembly at a local dealer or
in accordance with local state codes and practices.
22. Replace it with a new canister available from your dealer.
23. After temporarily sealing a tire using the tire sealant and compressor kit, take the vehicle to an
authorized dealer within a 161 km (100 miles) of
driving to have the tire repaired or replaced.Using the Tire Sealant and Compressor
Kit without Sealant to Inflate a Tire
(Not Punctured)
To use the air compressor to inflate a tire with air only
and not sealant:
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on the hazard
warning flashers. See Hazard Warning Flashers
on
page 4‑3.
6-91