key CADILLAC CTS 2008 2.G Service Manual

Charging System Light
This light comes on briey
when the ignition key is
turned, but the engine has
not started to run, as a
check to show you it
is working.
It should go out once the engine starts. If it stays on,
or comes on while driving, there could be a problem with
the charging system. A charging system message in
the Driver Information Center (DIC) may also appear.
SeeDIC Warnings and Messages on page 3-56
for more information. This light could indicate that
there are problems with a generator drive belt, or that
there is an electrical problem. Have it checked right
away. If you must drive a short distance with the light on,
be certain to turn off all the accessories, such as the
radio and air conditioner.
Up-Shift Light
The vehicle may have an
up-shift light.
When this light comes on, shift to the next higher gear if
weather, road, and traffic conditions allow.
SeeManual Transmission Operation on page 2-42for
more information.
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If the check engine light comes on to indicate that there
is an OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Heeding the light can prevent
more serious damage to your vehicle. This system
assists your service technician in correctly diagnosing
any malfunction.
Notice:If you keep driving your vehicle with
this light on, after a while, the emission controls
might not work as well, your vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by your warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This could
also result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 5-4.This light comes on during a malfunction in one of
two ways:
Light Flashing:A misre condition has been detected.
A misre increases vehicle emissions and could
damage the emission control system on your vehicle.
Diagnosis and service might be required.
The following can prevent more serious damage to the
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If towing a trailer, reduce the amount of cargo being
hauled as soon as it is possible.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still ashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
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Tire Pressure
The pressure for each tire can be viewed in the DIC.
The tire pressure is shown in either pounds per square
inch (psi) or kilopascals (kPa). Press the vehicle
information button until the DIC displays Front Tire
PSI (kPa) Left ## Right ##. Press the vehicle information
button again until the DIC displays Rear Tire PSI (kPa)
Left ## Right ##.
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 appears in the
display. SeeInflation - Tire Pressure on page 5-66and
DIC Warnings and Messages on page 3-56for more
information.
Battery Voltage
This display shows the current battery voltage. Your
vehicle’s charging system regulates voltage based
on the state of the battery. The battery voltage may
uctuate when viewing this information on the DIC.
This is normal.
If there is a problem with the battery charging system,
the charging system light illuminates and/or the DIC
displays a message. SeeCharging System Light
on page 3-37,DIC Warnings and Messages on
page 3-56andElectric Power Management on
page 3-21for more information.
Calibrate Compass
Your vehicle may have this feature. The compass can
be manually calibrated. To calibrate the compass
through the DIC, seeDIC Compass on page 3-53.
Change Compass Zone
Your vehicle may have this feature. To change the
compass zone through the DIC, seeDIC Compass on
page 3-53.
Relearn Remote Key
If your vehicle has the Remote Keyless Entry (RKE)
system, this display allows you to match the transmitter
to your vehicle. If your vehicle has the keyless access
system, seeKeyless Access System Operation on
page 2-10for instructions on matching a keyless access
transmitter to your vehicle. To match an RKE transmitter
to your vehicle:
1. Press the vehicle information button until
Press
VTo Relearn Remote Key displays.
2. Press the set/reset button until Remote Key
Learning Active is displayed.
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3. Press and hold the lock and unlock buttons on
the rst transmitter at the same time for about
15 seconds.
On vehicles with memory recall seats, the rst
transmitter learned will match driver 1 and
the second will match driver 2.
A chime sounds indicating that the transmitter is
matched.
4. To match additional transmitters at this time,
repeat Step 3.
Each vehicle can have a maximum of eight
transmitters matched to it.
5. To exit the programming mode, you must cycle
the key to LOCK/OFF.
Blank Display
This display shows no information.
DIC Compass
Your vehicle may have a compass in the Driver
Information Center (DIC).
Compass Zone
The zone is set to zone eight upon leaving the factory.
Your dealer/retailer will set the correct zone for your
location.
Under certain circumstances, such as during a long
distance cross-country trip or moving to a new state
or province, it will be necessary to compensate for
compass variance by resetting the zone through the
DIC if the zone is not set correctly.
Compass variance is the difference between the earth’s
magnetic north and true geographic north. If the
compass is not set to the zone where you live, the
compass may give false readings. The compass must
be set to the variance zone in which the vehicle is
traveling.
3-53

DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct the
condition. Multiple messages may appear one after
another.
Some messages may not require immediate action, but
you can press any of the DIC buttons on the instrument
panel to acknowledge that you received the messages
and to clear them from the display.
Some messages cannot be cleared from the DIC
display because they are more urgent. These messages
require action before they can be cleared. You should
take any messages that appear on the display seriously
and remember that clearing the messages will only
make the messages disappear, not correct the problem.
The following are the possible messages that can be
displayed and some information about them.
Accessory Mode Active
If your vehicle has the keyless access system, this
message displays when the accessory mode is active.
SeeIgnition Positions (Key Access) on page 2-32
orIgnition Positions (Keyless Access) on page 2-34
for more information.
AFL (Adaptive Forward Lighting)
Lamps Need Service
This message displays when the Adaptive Forward
Lighting (AFL) system is disabled and needs service.
See your dealer/retailer. SeeAdaptive Forward Lighting
System on page 3-19for more information.
All Wheel Drive Off
If your vehicle has the All-Wheel Drive (AWD) system,
this message displays when there is a temporary
condition making the AWD system unavailable.
Your vehicle will run in 2WD. This could be caused by:
Loss of wheel or vehicle speed
AWD system overheat
Certain vehicle electrical conditions
This message turns off when the above conditions are no
longer present and by resetting the warning message.
To reset the warning message, turn the ignition off and
then back on again after 30 seconds. If the message
stays on, see your dealer/retailer right away. See
All-Wheel Drive (AWD) System on page 4-9for more
information.
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Electronic Key Already Known
If your vehicle has the keyless access system, this
message displays if you try to match a transmitter that
has already been learned. SeeKeyless Access
System Operation on page 2-10for more information.
Electronic Key Not Detected
If your vehicle has the keyless access system, this
message displays if the vehicle does not detect
the presence of a transmitter when you have attempted
to start the vehicle or a vehicle door has just closed.
The following conditions may cause this message
to appear:
Driver-added equipment plugged into the accessory
power outlet on the center console is causing
interference. Examples of these devices are cell
phones and cell phone chargers, two-way radios,
power inverters, or similar items. Try moving
the keyless access transmitter away from these
devices when starting the vehicle. In addition,
PDA devices and remote garage and gate openers
may also generate Electromagnetic Interference
(EMI) that may interfere with the keyless access
transmitter. Do not carry the keyless access
transmitter in the same pocket or bag as these
devices.
The vehicle is experiencing Electromagnetic
Interference (EMI). Some locations, such as
airports, automatic toll booths, and some gas
stations have EMI elds which may interfere with
the keyless access transmitter.
If moving the transmitter to
different locations within
the vehicle does not
help, place the transmitter
in the center console
transmitter pocket with
the buttons facing the
front of the vehicle
and then press the
START button.
The vehicle’s battery voltage is low. The battery
voltage must be above 10 volts for the keyless
access transmitter to be detected properly.
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Electronic Key Not Detected Restart
Allowed
If your vehicle has the keyless access system, this
message displays when the keyless access transmitter
is not detected inside the vehicle while you are trying
to turn the ignition off. Your vehicle may be near a strong
radio antenna signal causing the keyless access
system to be jammed. The vehicle will remain in
ACC/ACCESSORY until the vehicle is turned off or is
started, or ve minutes has expired. If you turn the
ignition off and you cannot nd the keyless access
transmitter, you will not be able to restart the vehicle.
The keyless access transmitter needs to be inside of the
vehicle in order for the vehicle to start. SeeStarting
the Engine on page 2-35for more information.
Engine Hot A/C (Air Conditioning) Off
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
SeeEngine Coolant Temperature Gage on page 3-40.
To avoid added strain on a hot engine, the air
conditioning compressor automatically turns off. When
the coolant temperature returns to normal, the air
conditioning compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired by your dealer/retailer as soon as possible
to avoid damage to the engine.
Engine Oil Low Add Oil
If your vehicle has an oil level sensor, this message
displays if the oil level in the vehicle is low. Check the oil
level and correct it as necessary. You may need to let
the vehicle cool or warm up and cycle the ignition
to be sure this message clears.
This message clears itself after 10 seconds, until the
next ignition cycle. SeeEngine Oil on page 5-16
for additional information.
Engine Overheated Idle Engine
Notice:If you drive your vehicle while the engine is
overheating, severe engine damage may occur.
If an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon as
possible. Do not increase the engine speed above
normal idling speed. SeeEngine Overheating
on page 5-31for more information.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle to
idle until it cools down. SeeEngine Coolant
Temperature Warning Light on page 3-40.
SeeOverheated Engine Protection Operating Mode on
page 5-33for information on driving to a safe place
in an emergency.
3-60

Engine Power Is Reduced
This message displays when the engine power is
being reduced to protect the engine from damage.
There could be several malfunctions that might cause
this message. Reduced engine power can affect
the vehicle’s ability to accelerate. If this message is on,
but there is no reduction in performance, proceed to
your destination. The performance may be reduced the
next time the vehicle is driven. The vehicle may be
driven at a reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime this
message stays on, the vehicle should be taken to
your dealer/retailer for service as soon as possible.
Fuel Level Low
This message displays when your vehicle is low on fuel.
Rell the fuel tank as soon as possible. A chime may
sound when this message displays. SeeFilling the Tank
on page 5-9.
Heated Washer Fluid Wash (Washer)
Wipes Pending
If your vehicle has this feature, this message displays
when you turn on the heated windshield washer
uid system. See “Heated Windshield Washer” under
Windshield Washer on page 3-12for more information.
Heated Washer Fluid System Off
If your vehicle has this feature, this message displays
when you manually turn off the heated windshield
washer uid system or when the system automatically
turns off. See “Heated Windshield Washer” under
Windshield Washer on page 3-12for more information.
This message clears itself after 10 seconds.
Hood Open
This message displays when the hood is not closed
completely. Make sure that the hood is closed
completely.
Ice Possible Drive With Care
This message displays when the outside temperature is
cold enough to create icy road conditions. Adjust your
driving accordingly.
Learn Delay Active Wait XX Min
(Minutes)
If your vehicle has the keyless access system, this
message displays when matching new transmitters to
the vehicle. SeeKeyless Access System Operation
on page 2-10for more information.
3-61

Left Rear Door Open
This message displays when the driver side rear door is
not closed completely. Make sure that the door is
closed completely.
Maximum # Electronic Keys Learned
If your vehicle has the keyless access system, this
message displays when the maximum number of
transmitters have been learned. SeeKeyless Access
System Operation on page 2-10for more information.
Oil Pressure Low Stop Engine
Notice:If you drive your vehicle while the engine
oil pressure is low, severe engine damage may
occur. If a low oil pressure warning appears on
the instrument panel cluster and/or DIC, stop the
vehicle as soon as possible. Do not drive the vehicle
until the cause of the low oil pressure is corrected.
SeeEngine Oil on page 5-16for more information.
This message displays when the vehicle’s engine
oil pressure is low. The oil pressure light may also
appear on the instrument panel cluster. SeeOil
Pressure Light on page 3-44. SeeEngine Oil on
page 5-16for more information.Stop the vehicle immediately, as engine damage can
result from driving a vehicle with low oil pressure.
Have the vehicle serviced by your dealer/retailer as soon
as possible when this message is displayed.
Parking Assist Off
If your vehicle has the Ultrasonic Rear Parking Assist
(URPA) system, after the vehicle has been started, this
message displays to remind the driver that the URPA
system has been turned off. Press the set/reset button to
acknowledge this message and clear it from the DIC
display. To turn the URPA system back on, see “Parking
Assist” underDIC Operation and Displays on page 3-48.
SeeUltrasonic Rear Parking Assist (URPA) on
page 2-52for more information.
Passenger Door Open
This message displays when the passenger side front
door is not closed completely. Make sure that the door is
closed completely.
3-62

Press Brake To Start Engine
(Automatic Transmission Only)
If your vehicle has the keyless access system, this
message displays if you try to start the engine without
having the brake pressed. The brake needs to be
pressed when starting the engine. SeeIgnition Positions
(Key Access) on page 2-32orIgnition Positions
(Keyless Access) on page 2-34for more information.
Press Start Control To Learn Keys
If your vehicle has the keyless access system, this
message displays when matching new transmitters to
the vehicle. SeeKeyless Access System Operation
on page 2-10for more information.
Rainsense Wipers Active
If your vehicle has this feature, this message
displays while the Rainsense™ wipers are active.
SeeRainsense™ Wipers on page 3-10for
more information.
Ready To Learn Electronic Key # X
If your vehicle has the keyless access system, this
message displays while matching new transmitters to
the vehicle. SeeKeyless Access System Operation
on page 2-10for more information.
Remote Key Learning Active
If your vehicle has the Remote Keyless Entry (RKE)
system, this message displays while matching new
transmitters to the vehicle. See “Matching Transmitter(s)
to Your Vehicle” underRemote Keyless Entry (RKE)
System Operation on page 2-7andDIC Operation and
Displays on page 3-48for more information.
Replace Battery In Remote Key
This message displays when the battery in the Remote
Keyless Entry (RKE) or keyless access transmitter
needs to be replaced. To replace the battery, see
“Battery Replacement” underRemote Keyless Entry
(RKE) System Operation on page 2-7orKeyless Access
System Operation on page 2-10.
Right Rear Door Open
This message displays when the passenger side rear
door is not closed completely. Make sure that the door is
closed completely.
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