TPMS CADILLAC CTS 2007 1.G Owners Manual

Because you will not have this cushion when
driving on a deated run-at tire, try to avoid
potholes that could damage your wheel and
require replacement of it.
Some road hazards can damage a tire beyond
repair. This damage could occur even before you
have driven on the tire in a deated condition.
When a tire has been damaged, or if you
have driven any distance on a run-at tire, check
with an authorized run-at tire service center
to determine whether the tire can be repaired or
should be replaced. To maintain your vehicle’s
run-at feature, all replacement tires must
be self-supporting tires. As soon as possible,
contact the nearest authorized GM or run-at
servicing facility for inspection and repair or
replacement. To locate the nearest GM or run-at
servicing facility, call Roadside Service. See
Roadside Service on page 488for details.
{CAUTION:
Run-at tires are constructed differently
than other tires and could explode during
improper service. You or others could be
injured or killed if you attempt to repair,
replace, dismount, or mount a run-at tire.
Let only an authorized run-at service
center repair, replace, dismount, and
mount run-at tires.
The valve stems on your run-at tires have sensors
that are part of the Tire Pressure Monitor System
(TPMS). These sensors contain batteries which are
designed to last for 10 years under normal driving
conditions. See your dealer if you ever need to
have a wheel replaced, or if the sensors ever need
replacement.
Notice:Using liquid sealants can damage the
tire valves and tire pressure monitor sensors in
your vehicle’s run-at tires. This damage would
not be covered by warranty. Do not use liquid
sealants in your vehicle’s run-at tires.
401

The high-performance tires, size P225/55R16,
P225/50R17 or P225/50R18 require ination
pressure adjustment when driving your vehicle at
speeds of 100 mph (160 km/h) or higher. Set
the cold tire ination pressure to the maximum
ination pressure shown on the tire sidewall,
or 38 psi (262 kPa), whichever is lower. See the
example following.
Example:
You will nd the maximum load and ination
pressure molded on the tire’s sidewall, in small
letters, near the rim ange. It will read something
like this: Maximum load 710 kg (1565 lbs)
350 kPa (51 psi) Max. Press.
For this example, you would set the cold ination
pressure for high-speed driving at 38 psi (262 kPa)
When you end high-speed driving, return the tires
to the cold ination pressures shown on the
tire and loading information label. SeeLoading
Your Vehicle on page 321.Tire Pressure Monitor System
Your vehicle may have a Tire Pressure Monitor
System (TPMS). This system uses radio and
sensor technology to check tire pressure levels.
If your vehicle has this feature, sensors are
mounted on each the tire and wheel assembly,
except for the spare tire. The TPMS sensors
monitor the air pressure in the vehicle’s tires and
transmits the tire pressure readings to a receiver
located in the vehicle.
If your vehicle has the base audio system, the
Driver Information Center (DIC) displays TPMS
warnings and messages on the radio’s display
screen. SeeSystem Controls on page 223
andDIC Warnings and Messages on page 232for
additional information and details about the DIC
operation and displays. If your vehicle has
the Navigation system, TPMS warnings and
messages are displayed on the message center
screen, located inside the tachometer. See
Message Center (CTS-V) on page 215for
information about the message center operation
and displays.
405

If a low tire pressure condition is detected, the
TPMS will display the Check Tire Pressure
message on the DIC or message center and, at the
same time, illuminate the low tire pressure warning
symbol on the instrument panel cluster.
Each tire, including the spare (if provided), should
be checked monthly when cold and inated to the
ination pressure recommended by the vehicle
manufacturer on the vehicle placard or tire ination
pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle
placard or tire ination pressure label, you should
determine the proper tire ination pressure for
those tires.)
As an added safety
feature, your vehicle has
been equipped with a
tire pressure monitoring
system (TPMS) that
illuminates a low tire
pressure telltale when
one or more of your tires
is signicantly
under-inated.Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires
as soon as possible, and inate them to the
proper pressure. Driving on a signicantly
under-inated tire causes the tire to overheat and
can lead to the tire failure. Under-ination also
reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,
even if under-ination has not reached the level to
trigger illumination of the TPMS low tire pressure
telltale.
The Tire and Loading Information label shows the
size of your vehicle’s original tires and their
recommended cold ination pressures. See
Loading Your Vehicle on page 321, for the location
of the tire and loading information label. Also
seeInation - Tire Pressure on page 402.
The tire pressure warning light may come on in
cool weather when the vehicle is rst started, and
then turn off as you start to drive. This could
be an early indicator that the tire pressures are
getting low and need to be inated to the
proper pressure.
406

Your vehicle’s TPMS can alert you about a low
tire pressure condition but it does not replace
normal tire maintenance. SeeTire Inspection and
Rotation on page 409andTires on page 392.
Notice:Do not use a tire sealant if your vehicle
has Tire Pressure Monitors. The liquid sealant
can damage the tire pressure monitor sensors.
Resetting the TPMS Identication
Codes
Each TPMS sensor has a unique identication
code. Any time you replace one or more of
the TPMS sensors or rotate the tires, the
identication codes will need to be matched to the
new tire and wheel position. The sensors are
matched to the tire and wheel positions in
the following order: driver’s side front tire,
passenger’s side front tire, passenger’s side rear
tire, and driver’s side rear tire using a TPMS
diagnostic tool. See your GM dealer for service.
The TPMS sensors may also be matched to each
tire and wheel position by increasing or
decreasing the tire’s air pressure. When increasing
tire pressure do not exceed the maximum
ination pressure indicated on the tire’s sidewall.You will have two minutes to match the rst tire
and wheel position, and ve minutes overall
to match all four tire and wheel positions. If it takes
longer than two minutes, to match the rst tire
and wheel, or more than ve minutes to match all
four tire and 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. Turn the ignition switch to ON with the
engine off.
3. Using the Remote Keyless Entry (RKE)
transmitter, lock and unlock the vehicle’s
doors.
4. Press the lock and unlock buttons, at the
same time, on the RKE transmitter. A single
horn chirp will sound, indicating that the
TPMS system is ready, and the sensor
matching process can begin.
5. Start with the driver’s side front tire.
407

6. Remove the valve cap from the valve stem.
Activate the TPMS sensor by increasing
or decreasing the tire’s air pressure for
ve seconds, or until a horn chirp sounds. The
horn chirp, which may take up to 30 seconds,
conrms that the sensor identication code has
been matched to this tire position. To decrease
the tire’s air-pressure use the pointed end of
the valve cap, a pencil-style air pressure gage,
or a key.
7. Proceed to the passenger’s side front tire, and
repeat the procedure in Step 6.
8. Proceed to the passenger’s side rear tire, and
repeat the procedure in Step 6.
9. Proceed to the driver’s side rear tire, and
repeat the procedure in Step 6.
10. After hearing the conrming double horn
chirp, for the left rear tire, exit the matching
process by turning the ignition switch to OFF.
11. Set all four tires to the recommended
air pressure level as indicated on the tire and
loading information label.
12. Put the valve caps back on the valve stems.The TPMS will not function properly, if one or
more of the TPMS sensors are missing or
inoperable. If your vehicle has a compact spare
tire, the spare tire and wheel assembly does
not contain a TPMS sensor. If you replace one of
the road tires with the spare, or if the system
detects a missing or inoperable sensor, the
Service Tire Monitor System message will be
displayed on the DIC. If you have replaced a tire
and wheel assembly without transferring the
TPMS sensors, the error message will be
displayed. Once you re-install the TPMS sensors,
the message should go off. See your GM
dealer for service if all TPMS sensors are installed
and the error message comes on and stays on.
Have your vehicle serviced as soon as possible.
If your vehicle has a message center and the
system detects a missing or inoperable sensor an
error message of several dashes–––will be
shown on the message center display. If you have
replaced a tire and wheel assembly without
transferring the TPMS sensors, the error message
will be displayed. Once you re-install the TPMS
sensors, the error message should go off.
See your GM dealer for service if all TPMS
sensors are installed and the error message
comes on and stays on.
408

When rotating your vehicle’s tires, always use the
correct rotation pattern shown here.
If your vehicle has a compact spare tire, do not
include it in the tire rotation.
After the tires have been rotated, adjust the front
and rear ination pressures as shown on the Tire
and Loading Information label. SeeLoading Your
Vehicle on page 321, for an example of the tire and
loading information label and its location on your
vehicle.
If your vehicle has the Tire Pressure Monitor
System (TPMS) the TPMS sensors will need to be
reset and matched to the tire/wheel position. A
special TPMS diagnostic tool is used to reset the
sensor identication codes. See your dealer for
service.Make certain that all wheel nuts are properly
tightened. See “Wheel Nut Torque” under
Capacities and Specications on page 457.
{CAUTION:
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. SeeChanging a Flat Tire (CTS Only)
on page 424.
410