2009 CADILLAC XLR sensor

TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of the
TPMS sensors are missing or inoperable. When the
system detects a malfunction, the low tire warning light
ashes for about one minute and then stays on for the
remainder of the ignition cycle. A DIC warning message
is also displayed. The low tire warning light and DIC
warning message come on at each ignition cycle until the
problem is corrected. Some of the conditions that can
cause the malfunction light and DIC message to come
on are:
The TPMS sensor matching process was not done
or not completed successfully. The DIC message
should go off after successfully completing the
sensor matching process.
One or more TPMS sensors are missing or
damaged. Under these conditions the TPMS
malfunction light (low tire warning light) comes on,
and at the same time the DIC message is displayed.
The DIC message and TPMS malfunction light
should go off once the TPMS sensors are installed
and the sensor matching process is performed
successfully.
Replacement tires or wheels do not match your
vehicle’s original equipment tires or wheels. Tires
and wheels other than those recommended for your
vehicle could prevent the TPMS from functioning
properly. SeeBuying New Tires on page 6-62.
Operating electronic devices or being near facilities
using radio wave frequencies similar to the TPMS
could cause the TPMS sensors to malfunction.
If the TPMS is not functioning it cannot detect or
signal a low tire condition. See your dealer/retailer
for service if the TPMS malfunction light and DIC
message comes on and stays on.
TPMS Sensor Matching Process
Each TPMS sensor has a unique identication code.
Any time you replace one or more of the TPMS sensors
or rotate your vehicle’s tires, the identication 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/retailer for service.
6-59

Tire Inspection and Rotation
We recommend that you regularly inspect your
vehicle’s tires for signs of wear or damage.
SeeWhen It Is Time for New Tires on page 6-61
for additional information.
If your vehicle has P235/50R18 size tires they
should be rotated any time you notice unusual
wear. Rotate the tires as soon as possible and
check wheel alignment. Also check for damaged
tires or wheels. SeeWhen It Is Time for New Tires
on page 6-61andWheel Replacement on
page 6-66.
When rotating P235/50R18 size tires, always use
the correct rotation pattern shown here.After the tires have been rotated, adjust the front
and rear ination pressures as shown on the Tire
and Loading Information label, seeInflation - Tire
Pressure on page 6-54andLoading the Vehicle on
page 5-21. Vehicles that have the Tire Pressure
Monitor System (TPMS) need the TPMS sensors
reset after a tire rotation is performed. A special tool
is needed to reset the sensor identication codes.
See your dealer/retailer for service. Make certain
that all wheel nuts are properly tightened. See
Wheel Replacement on page 6-66and “Wheel Nut
Torque” underCapacities and Specifications on
page 6-90
.
{CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause a crash. 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 you
need to, to get all the rust or dirt off.
6-60

{CAUTION:
When the TIRE FLAT MAX SPD 55, REDUCED
HNDLG message is displayed on the Driver
Information Center, the vehicle’s handling
capabilities will be reduced during severe
maneuvers. If you drive too fast, you could lose
control of the vehicle. You or others could be
injured. Don’t drive over 55 mph (90 km/h) when the
TIRE FLAT MAX SPD 55, REDUCED HNDLG
message is displayed. Drive cautiously and check
the tire pressures as soon as you can.
If the TPM system detects a tire pressure below
5 psi (34 kPa), the TIRE FLAT MAX SPD 55, REDUCED
HNDLG warning message is displayed on the Driver
Information Center (DIC). SeeDIC Operation and
Displays on page 3-57andDIC Warnings and Messages
on page 3-60for information and details about the DIC
operation and displays.
{CAUTION:
Special tools and procedures are required to
service a run-at tire. If these special tools and
procedures are not used you or others could be
injured and the vehicle could be damaged. Always
be sure the proper tools and procedures, as
described in the service manual, are used.
Notice:Using liquid sealants can damage the tire
valves and tire pressure monitor sensors in the
vehicle’s run-at tires. This damage would not be
covered by warranty. Do not use liquid sealants
in the vehicle’s run-at tires.
To order a service manual, seeService Publications
Ordering Information on page 8-15.
If a tire goes at, the stability control system will turn on
automatically even if it was disabled by the driver. When
a at tire condition exists the Stabilitrak
®system cannot
be turned off. SeeStabiliTrak®System on page 5-6.
6-73

Fuses Usage
CLSTR/HUDInstrument Panel Cluster, Heads-up
Display (HUD)
COLUMN LK
MDLNot Used
DECK LID
CLOSE/PRK/
BRK BTrunk Close Button, Parking Brake
Solenoid B
DR LOCKS Door Locks
ECM Engine Control Module
EMPTY Not Used
EMPTY Not Used
EMPTY Not Used
EMPTY Not Used
EMPTY Not Used
FOLDING
TOP/TRUNK
LATCHRetractable Hardtop, Trunk Latch
FUSE PULLER Fuse Puller
GMLAN
DEVICESGMLAN Devices
HTD STR WHL Heated Steering Wheel
HTD/SEAT LH Driver Side Heated Seat
HTD/SEAT RH Passenger Side Heated Seat
HVAC/PWR
SNDClimate Control System, Power
SounderFuses Usage
IGN SW/INTR
SNSRIgnition Switch, Intrusion Sensor
INTERIOR
LIGHTSInterior Lights
ISRVM/HVACInside Rearview Mirror, Climate
Control System, Column Lock,
Power Sounder
ONSTAR OnStar
®
PRK/BRK
SOL AParking Brake Solenoid A
PWR FLDG
MIR-EXT/RETPower Folding Mirror
PWR LUMBAR
LH/RHPower Lumbar
RADIO/S-BAND/
VICSRadio, S-Band, CD Changer
REAR
FOG/ALDLRear Fog Lamps, Diagnostic Link
Connector
REVERSE
LAMPReverse Lamp
REVERSE
LAMPSReverse Lamps
RPA/H/C
SEAT/WPR
RELAYSRear Park Aid, Heated/Cooled
Seats, Windshield Wiper Relays
RUN/ACSRY
PWRRun, Accessory Power
6-85

Fuses Usage
4 Windshield Wipers
5 Stop/Back-Up Lamps
6 Oxygen Sensor
7 Battery 5
8 Parking Lamps
9 Electronic Throttle Control
10 Fuel Pump
11 Antilock Brake System
12 Odd Injectors
13 Electronic Suspension Control
14 Emission Controls
15 Air Conditioning Compressor
16 Even Injectors
17Windshield Washer, Adaptive
Forward Lighting System (AFS),
Intercooler Pump
18 Headlamp WasherFuses Usage
19 Right Low Beam Headlamp
20 Not Used
21 Left Low Beam Headlamp
22 Fog Lamp
23 Right High Beam Headlamp
24 Left High Beam Headlamp
25 Cooling Fan
26 Battery 3
27 Antilock Brakes
28 Climate Controls
29 Battery 2
30 Starter
31 Audio Amplier
32 Not Used
33 Battery 1
48 Spare
6-88