2011 CADILLAC CTS service

Black plate (19,1)Cadillac CTS/CTS-V Owner Manual - 2011
Instruments and Controls 5-19
{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light
on page 5‑17for more
information, including important
safety information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
It should go out when the engine is
started. If the light stays on, or comes on
while driving, there may be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
When this light comes on, the Driver
Information Center (DIC) also
displays a message.
See
Battery Voltage and Charging
Messages on page 5‑31.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It ensures that emissions are at acceptable levels
for the life of the vehicle, helping to
produce a cleaner environment.
This light should come on when the
ignition is on, but the engine is not
running, as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer.
If the Malfunction Indicator Lamp
comes on and stays on while the
engine is running, this indicates that
there is an OBD II problem and
service is required.

Black plate (20,1)Cadillac CTS/CTS-V Owner Manual - 2011
5-20 Instruments and Controls
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system assists
the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
the 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 the
vehicle warranty.
Notice: Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than
those of the same Tire
Performance Criteria (TPC) can
affect the vehicle's emission
controls and can cause this light
to come on. Modifications to
these systems could lead to costly repairs not covered by the
vehicle warranty. This could also
result in a failure to pass a
required Emission Inspection/
Maintenance test. See
Accessories and Modifications
on
page 10‑4.
This light comes on during a
malfunction in one of two ways:
Light Flashing: A misfire condition
has been detected. A misfire
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required.
To 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 flash, when
it is safe to do so, stop the vehicle.
Find a safe place to park the
vehicle. Turn the vehicle off, wait at
least 10 seconds, and restart the
engine. If the light is still flashing,
follow the previous steps and see
your dealer 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.

Black plate (23,1)Cadillac CTS/CTS-V Owner Manual - 2011
Instruments and Controls 5-23
{CAUTION
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
For vehicles with the Electric Park
Brake (EPB), this red brake warning
light comes on when the park brake
is applied. If the light continues
flashing after the park brake is
released, or while driving, there is a
problem with the Electric Parking
Brake system.
If the light does not come on,
or remains flashing, see your dealer.
For vehicles with the Electric Park
Brake (EPB), this park brake status
light should come on briefly when
ignition is placed in ON/RUN. If it
does not come on then, have it fixed
so it will be ready to warn if there is
a problem.
If this park brake light comes on,
there is a problem with a system on
the vehicle that is causing the park
brake system to work at a reduced
level. The vehicle can still be driven,
but should be taken to a dealer
See Brake Assist (Except CTS-V)
on page 9‑36for more information.
Antilock Brake System
(ABS) Warning Light
For vehicles with the Antilock Brake
System (ABS), this light comes on
briefly when the engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the ABS light stays on, turn the
ignition off. If the light comes on
while driving, stop as soon as it is
safely possible and turn the ignition
off. A chime may also sound when
the light comes on steady. If this
happens, start the engine again to
reset the system. If the ABS light
stays on, or comes on again while
driving, the vehicle needs service.

Black plate (24,1)Cadillac CTS/CTS-V Owner Manual - 2011
5-24 Instruments and Controls
If the regular brake system warning
light is not on, the vehicle still has
brakes, but not antilock brakes.
If the regular brake system warning
light is also on, the vehicle does not
have antilock brakes and there is a
problem with the regular brakes.
SeeBrake System Warning Light
on page 5‑22.
For vehicles with a Driver
Information Center (DIC), see Driver
Information Center (DIC)
on
page 5‑27for all brake related DIC
messages.
Up-Shift Light
The vehicle may have an up-shift
light. It indicates when to shift to the
next higher gear for best fuel
economy. See
Manual Transmission
on
page 9‑30for more information.
For the CTS-V, the tracer lights
function as a performance up-shift
light.
The tracers flash to indicate
when to shift to the next higher gear
to avoid the engine speed limit.
See Automatic Transmission
on
page 9‑26or Manual Transmissionon page 9‑30for more information.
Traction Control System
(TCS)/StabiliTrak®Light
The Traction Control System (TCS)/
StabiliTrak warning light should
come on briefly when the engine is
started. If it does not, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light then goes off.
If the light comes on or stays on
while driving, there may be a
problem with the TCS/StabiliTrak
and the vehicle may need service.
When this warning light is on, the
system does not limit wheel spin.
Adjust driving accordingly.
See
Traction Control System (TCS)
on page 9‑37andStabiliTrak
Systemon page 9‑38for more
information.

Black plate (25,1)Cadillac CTS/CTS-V Owner Manual - 2011
Instruments and Controls 5-25
Engine Coolant
Temperature Warning
Light
The engine coolant temperature
warning light comes on briefly when
the engine is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light then goes off.
If the light comes on and stays on
while driving, the vehicle may have
a problem with the cooling system.
Stop the vehicle and turn off the
engine to avoid damage to the
engine. A warning chime sounds
when this light is on.
SeeEngine Overheating
on
page 10‑24for more information.
Tire Pressure Light
For vehicles with a Tire Pressure
Monitor System, this light comes on
briefly when the engine is started.
It provides information about tire
pressures and the Tire Pressure
Monitor System.
When the Light is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A tire pressure message can
accompany the light. See Tire
Messages
on page 5‑43for more
information. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information Label. See
Tire Pressure
on page 10‑74for
more information. When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the Tire Pressure
Monitor System. The light flashes
for about a minute and stays on
steady for the remainder of the
ignition cycle. This sequence
repeats with every ignition cycle.
See
Tire Pressure Monitor
Operation
on page 10‑77for more
information.

Black plate (26,1)Cadillac CTS/CTS-V Owner Manual - 2011
5-26 Instruments and Controls
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule in this manual for
changing engine oil.
The oil pressure light should come
on briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Security Light
This light flashes when the security
system is activated.
For more information, see Vehicle
Security on page 2‑23.
High-Beam on Light
The high-beam on light comes on
when the high-beam headlamps are
in use.
See Headlamp High/Low-Beam
Changer
on page 6‑2for more
information.

Black plate (32,1)Cadillac CTS/CTS-V Owner Manual - 2011
5-32 Instruments and Controls
Battery Volts Low
This message displays when the
electrical system is charging less
than 10 volts or the battery has
been drained.
If this message appears
immediately after starting the
engine, it is possible that the
generator can still recharge the
battery. The battery should recharge
while driving, but may take a
few hours to do so. Consider using
an auxiliary charger to boost the
battery after returning home or to a
final destination. Make sure you
follow the manufacturer's
instructions.
If this message appears while
driving or after starting the vehicle
and stays on, have it checked
immediately to determine the cause
of this problem.
To help the generator recharge the
battery quickly, reduce the load on
the electrical system by turning off
the accessories.The normal battery voltage range is
11.5 to 15.5 volts. Monitor battery
voltage on the DIC by pressing the
vehicle information button until
Battery Voltage is displayed.
Service Battery Charging
System
This message displays when there
is a problem with the generator and
battery charging systems. Driving
with this problem could drain the
battery. Turn off all unnecessary
accessories. Stop and turn off the
vehicle as soon as it is safe to do
so. Have the electrical system
checked by your dealer. Under
certain conditions, the charging
system light may also turn on in the
instrument panel cluster. See
Charging System Light
on
page 5‑19for more information.
Brake System Messages
Park Brake Released
For vehicles with the Electric
Parking Brake, this message
displays when the parking brake
has been released from the set
position. See the Electric Parking
Brake information under Parking
Brake (Manual)
on page 9‑33or
Parking Brake (Electric)on
page 9‑34for more information.
Park Brake Set
For vehicles with the Electric
Parking Brake, this message
displays when the parking brake
has been applied to the set position.
See the Electric Parking Brake
information under Parking Brake
(Manual)
on page 9‑33or Parking
Brake (Electric)on page 9‑34for
more information.

Black plate (33,1)Cadillac CTS/CTS-V Owner Manual - 2011
Instruments and Controls 5-33
Press Brake To Start Engine
(Automatic Transmission Only)
If the 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. See
Ignition Positions (Key Access)
on
page 9‑16or Ignition Positions
(Keyless Access)on page 9‑18for
more information.
Release Park Brake Switch
For vehicles with the Electric
Parking Brake, this message
displays if the Park Brake switch is
pulled while the vehicle is moving.
See the Electric Parking Brake
information under Parking Brake
(Manual)
on page 9‑33or Parking
Brake (Electric)on page 9‑34for
more information.
Service Brake Assist
This message displays if there is a
problem with the brake system. The
brake system warning light and the
antilock brake system (ABS)
warning light may also display on
the instrument panel cluster. See
Brake System Warning Light
on
page 5‑22and Antilock Brake
System (ABS) Warning Lighton
page 5‑23for more information.
Stop as soon as possible and turn
off the vehicle. Restart the vehicle
and check for the message on the
DIC display. If the message displays
immediately or again after you begin
driving, the brake system needs
service. See your dealer as soon as
possible. See Antilock Brake
System (ABS)
on page 9‑32for
more information.
Service Brake System
This message displays, while the
ignition is on, when the brake fluid
level is low. The brake system
warning light on the instrument
panel cluster also comes on. See Brake System Warning Light
on
page 5‑22for more information.
This message may also be
displayed for other brake system
problems. Have the brake system
serviced by your dealer as soon as
possible.
Service Park Brake
For vehicles with the Electric
Parking Brake, this message
displays if a problem is detected
with the electric parking brake
system. See your dealer for service.
Step On Brake To Release
Park Brake
For vehicles with the Electric
Parking Brake, this message
displays if you try to release the
park brake system without first
pressing the brake pedal. See the
Electric Parking Brake information
under Parking Brake (Manual)
on
page 9‑33or Parking Brake
(Electric)on page 9‑34for more
information.