check engine light CADILLAC CTS 2011 2.G User Guide

Black plate (42,1)Cadillac CTS/CTS-V Owner Manual - 2011
5-42 Instruments and Controls
.The message could display if the
stability system takes longer
than usual to complete its
diagnostic checks due to driving
conditions.
.The message displays if an
engine or vehicle related
problem has been detected and
the vehicle needs service. See
your dealer.
The message turns off as soon as
the conditions that caused the
message to be displayed are no
longer present.
Suspension Mode Sport
(CTS-V Only)
This message will be displayed
when sport mode is selected using
the Magnetic Ride Control button in
the center of the instrument panel.
See Magnetic Ride Control
on
page 9‑39for more information.
Suspension Mode Tour
(CTS-V Only)
This message will be displayed
when touring mode is selected
using the Magnetic Ride Control
button in the center of the
instrument panel. See Magnetic
Ride Control
on page 9‑39for more
information.
Airbag System Messages
Service Air Bag
This message displays when there
is a problem with the airbag system.
Have the vehicle serviced by your
dealer immediately. See Airbag
Readiness Light
on page 5‑17for
more information.
Anti-Theft Alarm System
Messages
Service Theft Deterrent System
This message displays 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
dealer before turning off the engine.
See Immobilizer Operation (Key
Access)
on page 2‑24or
Immobilizer Operation (Keyless
Access)
on page 2‑26for more
information.

Black plate (7,1)Cadillac CTS/CTS-V Owner Manual - 2011
Driving and Operating 9-7
Competitive Driving
Competitive driving may affect the
vehicle warranty. See the warranty
book before using the vehicle for
competitive driving.
Notice:If you use your vehicle
for competitive driving, the
engine may use more oil than it
would with normal use. Low oil
levels can damage the engine. Be
sure to check the oil level often
during competitive driving and
keep the level at or near the
upper mark that shows the proper
operating range on the engine oil
dipstick. For information on how
to add oil, see Engine Oil
on
page 10‑11.
CTS‐V Only: For competitive
driving, it is recommended that the
brake fluid be replaced with a high
performance brake fluid that has a
dry boiling point greater than 279°C
(534°F). After conversion to the high
performance brake fluid, follow the
brake fluid service recommendations outlined by the
fluid manufacturer. Do not use
silicone or DOT‐5 brake fluids.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep‐standing or flowing water.
{WARNING
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
(Continued)
WARNING (Continued)
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause your
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.

Black plate (32,1)Cadillac CTS/CTS-V Owner Manual - 2011
9-32 Driving and Operating
Drive Systems
All-Wheel Drive
Vehicles with this feature always
send engine power to all four
wheels. It is fully automatic, and
adjusts itself as needed for road
conditions.
When using a compact spare tire on
an AWD vehicle, the system
automatically detects the compact
spare and disables AWD. To restore
AWD operation and prevent
excessive wear on the system,
replace the compact spare with a
full-size tire as soon as possible.
SeeCompact Spare Tire
on
page 10‑111for more information.
Brakes
Antilock Brake
System (ABS)
This vehicle has the Antilock Brake
System (ABS), an advanced
electronic braking system that helps
prevent a braking skid.
When the engine is started and the
vehicle begins to drive away, ABS
checks itself. A momentary motor or
clicking noise might be heard while
this test is going on, and it might
even be noticed that the brake
pedal moves a little. This is normal.
If there is a problem with ABS, this
warning light stays on. See Antilock
Brake System (ABS) Warning Light
on page 5‑23. If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to
avoid a sudden obstacle, a
computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work the
brakes at each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
the driver steer around the obstacle
while braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.

Black plate (1,1)Cadillac CTS/CTS-V Owner Manual - 2011
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-3
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-3
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-4
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Cover . . . . . . . . . . . . . . . 10-10
Engine Oil . . . . . . . . . . . . . . . . . . 10-11
Engine Oil Life System . . . . . 10-14
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-15
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-15 Hydraulic Clutch . . . . . . . . . . . . 10-15
Engine Air Cleaner/Filter . . . . 10-16
Cooling System . . . . . . . . . . . . 10-19
Engine Coolant . . . . . . . . . . . . . 10-19
Engine Overheating . . . . . . . . 10-24
Overheated Engine
Protection
Operating Mode . . . . . . . . . . . 10-25
Power Steering Fluid . . . . . . . 10-26
Washer Fluid . . . . . . . . . . . . . . . 10-26
Brakes . . . . . . . . . . . . . . . . . . . . . 10-27
Brake Fluid . . . . . . . . . . . . . . . . . 10-28
Battery . . . . . . . . . . . . . . . . . . . . . 10-30
All-Wheel Drive . . . . . . . . . . . . . 10-31
Rear Axle . . . . . . . . . . . . . . . . . . 10-31
Starter Switch Check . . . . . . . 10-32
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-33
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-33
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-33
Wiper Blade Replacement . . . . . . . . . . . . . . 10-34
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-35
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-38
Halogen Bulbs . . . . . . . . . . . . . . 10-38
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . 10-38
Fog Lamps . . . . . . . . . . . . . . . . . 10-38
License Plate Lamp (Coupe
and Sedan) . . . . . . . . . . . . . . . 10-39
License Plate Lamp (Wagon) . . . . . . . . . . . . . . . . . . 10-39
Replacement Bulbs . . . . . . . . . 10-40
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-40
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-42
Engine Compartment Fuse
Block (CTS Coupe and
Sedan) . . . . . . . . . . . . . . . . . . . . 10-42
Engine Compartment Fuse Block (CTS V Coupe and
Sedan) . . . . . . . . . . . . . . . . . . . . 10-46
Engine Compartment Fuse Block (CTS Wagon) . . . . . . . 10-50
Engine Compartment Fuse Block (CTS V Wagon) . . . . . 10-54

Black plate (16,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-16 Vehicle Care
Refer to the Maintenance Schedule
for the proper fluid to use. See
Recommended Fluids and
Lubricants
on page 11‑7. The fluid
requires changing every two years.
See Scheduled Maintenance
on
page 11‑3.
How to Check and Add Fluid
Visually check the clutch fluid
reservoir to make sure the fluid level
is at the MIN (minimum) line on the
side of the reservoir. The hydraulic
clutch fluid system should be closed
and sealed.
Do not remove the cap to check the
fluid level or to top‐off the fluid level.
Remove the cap only when
necessary to add the proper fluid
until the level reaches the MIN line.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the driver
side of the vehicle, near the front.
See Engine Compartment Overview
on page 10‑6for more information
on location.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at the
Maintenance IIintervals and replace
it at the first oil change after each
80 000 km (50,000 mile) interval.
See Scheduled Maintenance
on
page 11‑3for more information.
If you are driving in dusty/dirty
conditions, inspect the filter at each
engine oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter,
remove the filter from the vehicle
and lightly shake the filter to release
loose dust and dirt. If the filter
remains caked with dirt, a new filter
is required.
To inspect or replace the engine air
cleaner/filter:
1. Turn the ignition off.
2. Remove the side cover by
pulling up on the front of the
cover.

Black plate (22,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-22 Vehicle Care
2. Then keep turning the pressurecap slowly and remove it.3. Fill the coolant surge tank withthe proper mixture, to slightly
above the FROID/FULL COLD
line on the side of the coolant
surge tank.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until you
can feel the upper radiator hose
getting hot. The upper radiator
hose is the top hose coming out
of the radiator, on the passenger
side of the vehicle. Watch out for
the engine cooling fans. By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge tank
until the level reaches the
FROID/FULL COLD line on the
side of the coolant surge tank.
5. Then replace the pressure cap. Be sure the pressure cap is
hand-tight and fully seated.
Notice: If the pressure cap is not
tightly installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Recheck the coolant level in the
bottle next time you use your
vehicle to ensure the system is full
when cold.

Black plate (114,1)Cadillac CTS/CTS-V Owner Manual - 2011
10-114 Vehicle Care
{WARNING
Using an open flame near a
battery can cause battery gas to
explode. People have been hurt
doing this, and some have been
blinded. Use a flashlight if you
need more light.
Be sure the battery has enough
water. You do not need to add
water to the battery installed in
your new vehicle. But if a battery
has filler caps, be sure the right
amount of fluid is there. If it is low,
add water to take care of that
first. If you do not, explosive gas
could be present.(Continued)
WARNING (Continued)
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{WARNING
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running. 5. Check that the jumper cables do
not have loose or missing
insulation. If they do, you could
get a shock. The vehicles could
be damaged too.
Before you connect the cables,
here are some basic things you
should know. Positive (+) will go
to positive (+) or to a remote
positive (+) terminal if the vehicle
has one. Negative (−) will go to a
heavy, unpainted metal engine
part or to a remote negative (−)
terminal if the vehicle has one.
Do not connect positive (+) to
negative (−) or you will get a
short that would damage the
battery and maybe other parts
too. And do not connect the
negative (−) cable to the
negative (−) terminal on the dead
battery because this can cause
sparks.

Black plate (1,1)Cadillac CTS/CTS-V Owner Manual - 2011
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-4
Accessory Power . . . . . . . . . . . . . . 9-19
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . . . 6-4
Add-On Electrical
Equipment . . . . . . . . . . . . . . . . . . . 9-58
Adding Equipment to the Airbag-Equipped Vehicle . . . . . 3-42
Adjustments
Lumbar, Front Seats . . . . . . . . . . . 3-7
Thigh Support . . . . . . . . . . . . . . . . . 3-8
Air Cleaner/Filter, Engine . . . . . 10-16
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 8-6
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-43
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-35 Airbag System (cont.)
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . 3-37
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-35
What Will You See After an Airbag Inflates? . . . . . . . . . . 3-36
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-33
Where Are the Airbags? . . . . . . 3-32
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-42
Passenger Status Indicator . . . 5-18
Readiness Light . . . . . . . . . . . . . . 5-17
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . 3-42
System Check . . . . . . . . . . . . . . . . 3-30
Alarm System Anti-Theft . . . . . . . . . . . . . . . . . . . . . 2-23
All-Wheel Drive . . . . . . . . . 10-31, 9-32
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-9 Antenna
Multi-Band . . . . . . . . . . . . . . . . . . . . 7-17
Anti-Theft Alarm System . . . . . . . . . . . . . . . . 2-23
Alarm System Messages . . . . . 5-42
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-32
Warning Light . . . . . . . . . . . . . . . . . 5-23
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . 10-120
Interior . . . . . . . . . . . . . . . . . . . . . 10-124
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 5-10
Audio Players . . . . . . . . . . . . . . . . . 7-17 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
CD/DVD . . . . . . . . . . . . . . . . . . . . . . 7-20
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Audio System Backglass Antenna . . . . . . . . . . . 7-17
Hard Drive Device (HDD) . . . . . 7-29
Radio Reception . . . . . . . . . . . . . . 7-16
Theft-Deterrent Feature . . . . . . . . 7-2

Black plate (2,1)Cadillac CTS/CTS-V Owner Manual - 2011
i-2 INDEX
AutomaticDoor Locks . . . . . . . . . . . . . . . . . . . 2-15
Headlamp System . . . . . . . . . . . . . 6-3
Automatic Transmission . . . . . . . 9-26 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-15
Manual Mode . . . . . . . . . . . . . . . . . 9-28
Automatic Transmission
Shift Lock Control
Function Check . . . . . . . . . . . . . 10-33
Auxiliary Devices . . . . . . . . . . . . . . 7-36
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-31
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-30 Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Jump Starting . . . . . . . . . . . . . . 10-112
Load Management . . . . . . . . . . . . . 6-6
Power Protection . . . . . . . . . . . . . . 6-7
Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . 5-31 Blade Replacement, Wiper . . . 10-34
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-38
Boost Gauge . . . . . . . . . . . . . . . . . . 5-14
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-27
Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-32
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-36
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-28
Parking . . . . . . . . . . . . . . . . . 9-33, 9-34
System Messages . . . . . . . . . . . . 5-32
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-16
Bulb Replacement . . . . . . . . . . . . 10-40 Fog Lamps . . . . . . . . . . . . . 10-38, 6-5
Halogen Bulbs . . . . . . . . . . . . . . 10-38
Headlamp Aiming . . . . . . . . . . . 10-35
Headlamps . . . . . . . . . . . . . . . . . 10-38
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . 10-38
License Plate Lamps . . . . . . . 10-39
Buying New Tires . . . . . . . . . . . . . 10-83
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-7
California Fuel Requirements . . . . . . . . . . . 9-48
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-3
Camera, Rear Vision . . . . . . . . . . 9-44
Canadian Vehicle Owners . . . . . . . . iv
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-24
Liftgate . . . . . . . . . . . . . . . . . . . . . . . 2-20
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Winter Driving . . . . . . . . . . . . . . . . . 9-9
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Management System . . . . . . . . . . 4-3
Cargo Net . . . . . . . . . . . . . . . . . . . . . . 4-4

Black plate (3,1)Cadillac CTS/CTS-V Owner Manual - 2011
INDEX i-3
Cautions, Danger, andWarnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD DVD Player . . . . . . . . . . . . . . . . . . . 7-20
CD Player . . . . . . . . . . . . . . . . . . . . . 7-17
Center Console Storage . . . . . . . . 4-2
Central Door Unlock System . . . 2-15
Chains, Tire . . . . . . . . . . . . . . . . . . 10-89
Charging System Light . . . . . . . . 5-19
Check Engine Light . . . . . . . . . . . . . . . . . . 5-19
Ignition
Transmission Lock . . . . . . . . 10-33
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 3-47
Lower Anchors and Tethers for Children . . . . . . . . . 3-53
Older Children . . . . . . . . . . . . . . . . 3-44
Securing . . . . . . . . . . . . . . . . 3-60, 3-62
Systems . . . . . . . . . . . . . . . . . . . . . . 3-49
Where to Put the Restraint . . . 3-51
Cigarette Lighter . . . . . . . . . . . . . . . . 5-9
Circuit Breakers . . . . . . . . . . . . . . 10-42 Cleaning
Exterior Care . . . . . . . . . . . . . . 10-120
Interior Care . . . . . . . . . . . . . . . 10-124
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . 8-1
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Cluster, IP . . . . . . . . . . . . . . . . . . . . . 5-11
Clutch, Hydraulic . . . . . . . . . . . . . 10-15
Collision Damage Repair . . . . . 13-12
Compact Spare Tire . . . . . . . . . 10-111
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-7
Compass Messages . . . . . . . . . . . 5-34
Competitive Driving . . . . . . . . . . . . . 9-7
Competitive Driving Mode . . . . . 9-39
Compressor Kit, Tire Sealant . . . . . . . . . . . . . . . . . . . . . . 10-92
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convenience Net . . . . . . . . . . . . . . . 4-6
Convex Mirrors . . . . . . . . . . . . . . . . 2-27
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-19
Engine Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Engine Temperature Warning Light . . . . . . . . . . . . . . . 5-25 Cooling System . . . . . . . . . . . . . . . 10-19
Engine Messages . . . . . . . . . . . . 5-35
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . 13-10
Covers Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Engine . . . . . . . . . . . . . . . . . . . . . . 10-10
Cruise Control . . . . . . . . . . . . . . . . . 9-40 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Messages . . . . . . . . . . . . . . . . . . . . 5-34
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance
Offices . . . . . . . . . . . . . . . . . . 13-4, 13-5
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-6
Customer Information
Service PublicationsOrdering Information . . . . . . 13-14
Customer Satisfaction Procedure . . . . . . . . . . . . . . 13-1, 13-3