2006 CADILLAC DTS PROFESSIONAL tire pressure reset

Anti-Lock Brake System
Warning Light
With the anti-lock brake
system, the light will come
on when your engine is
started and may stay on
for several seconds.
That is normal.
If the ABS warning light comes on and stays on, there
may be a problem with the antilock portion of the
brake system. If the red BRAKE light is not on, you still
have brakes, but you do not have antilock brakes.
SeeBrake System Warning Light on page 3-62.
If the light stays on, turn the ignition to OFF/ACC. If the
light comes on when you are driving, stop as soon as
possible and turn the ignition off. Then start the engine
again to reset the system. If the light still stays on, or
comes on again while you are driving, your vehicle needs
service. If the regular brake system warning light is not
on, you still have brakes, but you do not have anti-lock
brakes. If the regular brake system warning light is also
on, you do not have anti-lock brakes and there is a
problem with your regular brakes. SeeBrake System
Warning Light on page 3-62.The anti-lock brake system warning light should come
on briey when you turn the ignition key to RUN. If
the light does not come on then, have it xed so it
will be ready to warn you if there is a problem.
Low Tire Pressure Warning Light
This light will come on
briey as you start the
engine, for vehicles
equipped with the Tire
Pressure Monitor System.
It will then come on only when a at or low tire pressure
condition exists.
SeeTire Pressure Monitor System on page 5-59for
more information.
3-63

UNITS
This display allows you to select between English or
Metric units of measurement. Once in this display, press
the set/reset button to select between ENGLISH or
METRIC units.
PARKING ASSIST
If your vehicle has the Ultrasonic Front and Rear
Parking Assist (UFRPA) system, this display allows the
system to be turned on or off. Once in this display,
press the set/reset button to select between ON or OFF.
If you choose ON, the system will be turned on. If you
choose OFF, the system will be turned off. The
UFRPA system automatically turns back on after each
vehicle start. When the UFRPA system is turned off and
the vehicle is shifted out of PARK (P), the DIC will
display the PARKING ASSIST OFF message as
a reminder that the system has been turned off. See
DIC Warnings and Messages on page 3-76and
Ultrasonic Front and Rear Parking Assist (UFRPA) on
page 3-38for more information.
FRONT TIRES or REAR TIRES
If your vehicle has a Tire Pressure Monitor (TPM)
system, the pressure for each tire can be viewed in the
DIC. The tire pressure will be shown in either pounds per
square inch (psi) or kilopascals (kPa). Press the vehicle
information button until the DIC shows the tire pressure
for the front tires. Press the vehicle information button
again to view the pressure for the rear tires.
If a low or high tire pressure condition is detected by the
system while driving, a message advising you to check
the pressure in a specic tire will appear in the display.
SeeInation - Tire Pressure on page 5-56andDIC
Warnings and Messages on page 3-76for more
information.
RELEARN TIRE POSITIONS
If your vehicle has a Tire Pressure Monitor (TPM)
system, after rotating the tires or after replacing a tire or
sensor, the system must re-learn the tire positions.
To re-learn the tire positions, seeTire Pressure Monitor
System on page 5-59. SeeTire Inspection and
Rotation on page 5-63andDIC Warnings and Messages
on page 3-76for more information.
3-75

CHANGE ENGINE OIL SOON
When this message displays, it means that service is
required for your vehicle. See your GM dealer. See
Engine Oil on page 5-13andScheduled Maintenance
on page 6-4for more information.
When you reset the CHANGE ENGINE OIL SOON
message by clearing it from the display, you still must
reset the engine oil life system separately. For more
information on resetting the engine oil life system, see
Engine Oil Life System on page 5-16.
CHECK TIRE PRESSURE
This symbol appears with
this message.
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will display when the tire pressure
in one of the tires needs to be checked. This message
will also display LEFT FRONT, RIGHT FRONT,
LEFT REAR, or RIGHT REAR to indicate which tire
needs to be checked.You can receive more than one tire pressure message
at a time. To read the other messages that may
have been sent at the same time, press the set/reset
button. If a tire pressure message appears on the DIC,
stop as soon as you can. Have the tire pressures
checked and set to those shown on your Tire Loading
Information Label. SeeTires on page 5-49,Loading
Your Vehicle on page 4-31, andInation - Tire Pressure
on page 5-56. The DIC display also shows the tire
pressure values for the front and rear tires by pressing
the vehicle information button. SeeDIC Controls
and Displays on page 3-72. If the tire pressure is low,
the low tire pressure warning light will come on. SeeLow
Tire Pressure Warning Light on page 3-63.
3-77

SERVICE STABILITRAK
Your vehicle may have a vehicle stability enhancement
system called StabiliTrak®. SeeStabiliTrak®System
on page 4-10.
This message will display if there has been a problem
detected with the StabiliTrak
®system.
If this message comes on while you are driving, pull off
the road as soon as possible and stop carefully. Try
resetting the system by turning the ignition off then back
on. If this message still stays on or comes back on
again while you are driving, your vehicle needs service.
Have the StabiliTrak
®system inspected by your
GM dealer as soon as possible.
SERVICE SUSPENSION SYS (System)
This message will display when the magnetic ride
control or automatic leveling control system is not
operating properly. Have your vehicle serviced by
your GM dealer.
SERVICE THEFT DETERRENT SYSTEM
This message will display when there is a problem
with the theft-deterrent system programmed in the key.
A fault has been detected in the system which means
that the system is disabled and it is not protecting
the vehicle. The vehicle usually restarts; however, you
may want to take the vehicle to your GM dealer
before turning off the engine. SeePASS-Key
®III+
Operation on page 2-21for more information.
SERVICE TIRE MONITOR SYSTEM
If your vehicle has a Tire Pressure Monitor (TPM) system,
this message will display if a part on the system is not
working properly. If you drive your vehicle while any of the
four sensors are missing or inoperable, the warning will
come on in about 10 minutes. A sensor would be missing,
for example, if you put different wheels on your vehicle
without transferring the sensors. If the warning comes on
and stays on, there may be a problem with the TPM. See
your GM dealer.
3-85

Resetting the TPMS Sensor
Identication Codes
Each TPMS sensor has a unique identication code.
Any time you replace one or more of the TPMS sensors,
rotate the vehicle’s tires, or install a full-size spare
that has a TPMS sensor, the sensor’s identication
codes will need to be matched to the new tire/wheel
position. Each tire/wheel position is matched to
the TPMS sensor using a TPMS diagnostic tool. See
your GM 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 air pressure,
do not exceed the maximum tire pressure indicated on
the tire’s sidewall.
You will have two minutes to match the rst tire/wheel
position, and ve minutes overall, to match all
four tire/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 TPMS matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to RUN with the engine off.
3. Press the Driver Information Center (DIC) vehicle
information button until the RELEARN TIRE
POSITIONS displays.
4. Press the set/reset button to allow the system to
learn the tire positions. The horn will sound twice
to indicate that the TPMS is ready, and then
the message TIRE LEARNING ACTIVE will display.
The sensor matching process can begin.
5. Start with the driver’s 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 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.
5-61

Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your 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 5-64andWheel Replacement
on page 5-69for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The rst rotation
is the most important. SeeScheduled Maintenance
on page 6-4.
If your vehicle has a compact spare tire, it should not be
included in the tire rotation process. Use the four-tire
rotation pattern shown.A ve-tire rotation pattern may be used for your
professional vehicle, if it has a full-size spare tire and
wheel assembly that matches the original equipment
tires and wheels in size, type and brand. The correct
ve-tire rotation pattern is shown.
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 4-31.
Vehicles that have the Tire Pressure Monitor System
(TPMS) will need to have the sensors reset after a tire
rotation is performed. SeeTire Pressure Monitor
System on page 5-59. Four-Tire Rotation Pattern
Five-Tire Rotation Pattern
5-63

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-13. Reset oil
life system. SeeEngine Oil Life System on page 5-16.An Emission
Control Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-18.See footnote (m).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 5-63and “Tire Wear Inspection” inAt Least Once a Month
on page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transaxle uid level and add uid as needed.•
Replace passenger compartment air lter.See footnote (g).•
6-5