warning light CADILLAC CTS SEDAN 2015 3.G User Guide

Black plate (33,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
Seats and Restraints 3-33
operates. We recommend that you
not use seat covers or other
aftermarket equipment except when
approved by GM for your specific
vehicle. SeeAdding Equipment to
the Airbag-Equipped Vehicle on
page 3-34 for more information
about modifications that can affect
how the system operates.
A wet seat can affect the
performance of the passenger
sensing system. Here is how:
.The passenger sensing system
may turn off the passenger
frontal airbag and passenger
knee airbag when liquid is
soaked into the seat. If this
happens, the off indicator will be
lit, and the airbag readiness light
on the instrument panel will also
be lit.
.Liquid pooled on the seat that
has not soaked in may make it
more likely that the passenger
sensing system will turn on the
passenger frontal airbag and
passenger knee airbag while a child restraint or child occupant
is on the seat. If the passenger
frontal airbag and passenger
knee airbag are turned on, the
on indicator will be lit.
If the passenger seat gets wet, dry
the seat immediately. If the airbag
readiness light is lit, do not install a
child restraint or allow anyone to
occupy the seat. See Airbag
Readiness Light on page 5-17 for
important safety information.
The on indicator may be lit if an
object, such as a briefcase,
handbag, grocery bag, laptop,
or other electronic device, is put on
an unoccupied seat. If this is not
desired, remove the object from
the seat.
{Warning
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
(Continued)
Warning (Continued)
seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle
should be serviced. There are parts
of the airbag system in several
places around the vehicle. Your
dealer and the service manual have
information about servicing the
vehicle and the airbag system. To
purchase a service manual, see
Service Publications Ordering
Information on page 13-10.
{Warning
For up to 10 seconds after the
vehicle is turned off and the
battery is disconnected, an airbag
(Continued)

Black plate (34,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
3-34 Seats and Restraints
Warning (Continued)
can still inflate during improper
service. You can be injured if you
are close to an airbag when it
inflates. Avoid yellow connectors.
They are probably part of the
airbag system. Be sure to follow
proper service procedures, and
make sure the person performing
work for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change the
vehicle's frame, bumper system,
height, front end, or side sheet
metal, may keep the airbag system
from working properly. The
operation of the airbag system can
also be affected by changing or
moving any parts of the front seats,
safety belts, the airbag sensing and
diagnostic module, steering wheel,
instrument panel, any of the airbag
modules, ceiling or pillar garnishtrim, overhead console, front
sensors, side impact sensors,
or airbag wiring.
Your dealer and the service manual
have information about the location
of the airbag sensors, sensing and
diagnostic module, and airbag
wiring.
In addition, the vehicle has a
passenger sensing system for the
front outboard passenger position,
which includes sensors that are part
of the passenger seat. The
passenger sensing system may not
operate properly if the original seat
trim is replaced with non-GM
covers, upholstery, or trim; or with
GM covers, upholstery, or trim
designed for a different vehicle. Any
object, such as an aftermarket seat
heater or a comfort-enhancing pad
or device, installed under or on top
of the seat fabric, could also
interfere with the operation of the
passenger sensing system. This
could either prevent proper
deployment of the passenger
airbag(s) or prevent the passengersensing system from properly
turning off the passenger airbag(s).
See
Passenger Sensing System on
page 3-29.
If the vehicle has rollover roof-rail
airbags, see Different Size Tires
and Wheels on page 10-60 for
additional important information.
If you have to modify your vehicle
because you have a disability and
you have questions about whether
the modifications will affect the
vehicle's airbag system, or if you
have questions about whether the
airbag system will be affected if the
vehicle is modified for any other
reason, call Customer Assistance.
See Customer Assistance Offices
on page 13-3.
Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light on
page 5-17.

Black plate (35,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
Seats and Restraints 3-35
{Caution
If an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, seeWhere Are the
Airbags? on page 3-24. See your
dealer for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle.
A damaged airbag system may
not work properly and may not
(Continued)
Warning (Continued)
protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See
your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light on
page 5-17.
Child Restraints
Older Children
Older children who have outgrown
booster seats should wear the
vehicle safety belts.

Black plate (1,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-3
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Power Outlets . . . . . . . . . . . . . . . . . 5-6
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-9
Instrument Cluster . . . . . . . . . . . 5-10
Speedometer . . . . . . . . . . . . . . . . 5-14
Odometer . . . . . . . . . . . . . . . . . . . . 5-14
Trip Odometer . . . . . . . . . . . . . . . 5-14
Tachometer . . . . . . . . . . . . . . . . . . 5-14
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-14
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Safety Belt Reminders . . . . . . . 5-16
Airbag Readiness Light . . . . . . 5-17 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-18
Charging System Light . . . . . . 5-19
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-19
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-22
Parking Brake Light . . . . . . . . . . 5-22
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-23
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-23
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . 5-23
Vehicle Ahead Indicator . . . . . . 5-24
Traction Off Light . . . . . . . . . . . . 5-24
StabiliTrak
®OFF Light . . . . . . . 5-24
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-25
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-25
Tire Pressure Light . . . . . . . . . . 5-26
Engine Oil Pressure Light . . . . 5-26
Low Fuel Warning Light . . . . . . 5-27
Security Light . . . . . . . . . . . . . . . . 5-27
High-Beam On Light . . . . . . . . . 5-27
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . 5-28 Lamps On Reminder . . . . . . . . . 5-28
Cruise Control Light . . . . . . . . . 5-28
Door Ajar Light . . . . . . . . . . . . . . 5-29
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 5-29
Head-Up Display (HUD) . . . . . 5-32
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-36
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . 5-36
Brake System Messages . . . . 5-36
Compass Messages . . . . . . . . . 5-37
Cruise Control Messages . . . . 5-37
Door Ajar Messages . . . . . . . . . 5-38
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-38
Engine Oil Messages . . . . . . . . 5-39
Engine Power Messages . . . . 5-39
Fuel System Messages . . . . . . 5-39
Key and Lock Messages . . . . . 5-39
Lamp Messages . . . . . . . . . . . . . 5-40
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-41
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-43
Airbag System Messages . . . . 5-44

Black plate (9,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
Instruments and Controls 5-9
Warning Lights,
Gauges, and
Indicators
Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Warning lights come on when there
could be a problem with a vehicle
function. Some warning lights come
on briefly when the engine is started
to indicate they are working.Gauges can indicate when there
could be a problem with a vehicle
function. Often gauges and warning
lights work together to indicate a
problem with the vehicle.
When one of the warning lights
comes on and stays on while
driving, or when one of the gauges
shows there may be a problem,
check the section that explains what
to do. Waiting to do repairs can be
costly and even dangerous.

Black plate (14,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
5-14 Instruments and Controls
Display Layout:Press SEL while
Display Layout is highlighted to
change the configuration of the
uplevel cluster. See “Reconfigurable
Instrument Cluster” earlier in this
section.
Open Source Software: Press
SEL while Open Source Software is
highlighted to display open source
software information.
Speedometer
The speedometer shows the
vehicle's speed in either kilometers
per hour (km/h) or miles per
hour (mph).
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
Trip Odometer
The trip odometer shows how far
the vehicle has been driven since
the trip odometer was last reset. The trip odometer is accessed and
reset through the Driver Information
Center (DIC). See
Driver
Information Center (DIC) on
page 5-29.
Tachometer
The tachometer displays the engine
speed in revolutions per
minute (rpm).
{Caution
If the engine is operated with the
rpm’s in the warning area at the
high end of the tachometer, the
vehicle could be damaged, and
the damage would not be covered
by the vehicle warranty. Do not
operate the engine with the rpm’s
in the warning area.
Fuel Gauge
Base Level

Black plate (17,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
Instruments and Controls 5-17
on solid until the belt is buckled.
This cycle may continue several
times if the driver remains or
becomes unbuckled while the
vehicle is moving.
If the driver safety belt is buckled,
neither the light nor the chime
comes on.
Passenger Safety Belt
Reminder Light
There is a passenger safety belt
reminder light near the passenger
airbag status indicator. See
Passenger Sensing System on
page 3-29.
When the vehicle is started, this
light flashes and a chime may come
on to remind passengers to fasten
their safety belt. Then the light stays
on solid until the belt is buckled.This cycle continues several times if
the passenger remains or becomes
unbuckled while the vehicle is
moving.
If the passenger safety belt is
buckled, neither the chime nor the
light comes on.
The front passenger safety belt
reminder light and chime may turn
on if an object is put on the seat
such as a briefcase, handbag,
grocery bag, laptop, or other
electronic device. To turn off the
reminder light and/or chime, remove
the object from the seat or buckle
the safety belt.
Airbag Readiness Light
This light shows if there is an
electrical problem with the airbag
system. The system check includes
the airbag sensor(s), passenger
sensing system, the pretensioners,
the airbag modules, the wiring, and
the crash sensing and diagnostic
module. For more information on the
airbag system, see
Airbag System
on page 3-22.
The airbag readiness light comes on
for several seconds when the
vehicle is started. If the light does
not come on then, have it fixed
immediately.
{Warning
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
(Continued)

Black plate (18,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
5-18 Instruments and Controls
Warning (Continued)
without a crash. To help avoid
injury, have the vehicle serviced
right away.
If there is a problem with the airbag
system, a Driver Information Center
(DIC) message may also come on.
See Airbag System Messages on
page 5-44.
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. See Passenger
Sensing System on page 3-29 for
important safety information. The
passenger airbag status indicator is
in the overhead console.
United States
Canada and Mexico
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF, or the symbol
for on and off for several seconds
as a system check. Then, after
several more seconds, the status
indicator will light either ON or OFF,
or the on or off symbol to let you
know the status of the front
outboard passenger frontal airbag
and knee airbag. If the word ON or the on symbol is
lit on the passenger airbag status
indicator, it means that the front
outboard passenger frontal airbag
and knee airbag are allowed to
inflate.
If the word OFF or the off symbol is
lit on the airbag status indicator, it
means that the passenger sensing
system has turned off the front
outboard passenger frontal airbag
and knee airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer for service.
{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,
(Continued)

Black plate (19,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
Instruments and Controls 5-19
Warning (Continued)
have the vehicle serviced right
away. SeeAirbag Readiness
Light on page 5-17 for more
information, including important
safety information.
Charging System Light
On some vehicles 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.
For vehicles with a reconfigurable
cluster, this light may not come on
when the ignition is turned on. 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, or is
flashing, the Driver Information
Center (DIC) also displays a
message.
See
Battery Voltage and Charging
Messages on page 5-36.
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 the operation
of the vehicle to ensure emissions
are at acceptable levels, helping to
maintain a clean environment. The
malfunction indicator lamp comes on when the vehicle is placed in
Service Only Mode, as a check to
show it is working. If it does not,
have the vehicle serviced by your
dealer. See
Ignition Positions on
page 9-16.
If the malfunction indicator lamp
comes on while the engine is
running, this indicates that there is
an OBD II problem and diagnosis
and service might be required.
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 also
assists the service technician in
correctly diagnosing any
malfunction.

Black plate (22,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707478) - 2015 - crc - 10/1/14
5-22 Instruments and Controls
system readiness, your dealer
can prepare the vehicle for
inspection.
Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
MetricEnglishThis light comes on briefly when the
vehicle is turned on. If it does not
come on then, have it fixed so it will
be ready to warn if there is a
problem.
If the light comes on and stays on,
there is a base brake problem.
{Warning
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.
Parking Brake Light
MetricEnglish
This light comes on when the
parking brake is applied. If the light
continues flashing after the parking
brake is released, or while driving,
there is a problem with the Electric
Parking Brake system or another
system. A message may also
display in the Driver Information
Center (DIC). See Brake System
Messages on page 5-36.
If the light does not come on,
or remains flashing, see your dealer.