2012 CADILLAC CTS check engine

Black plate (2,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
2012 Cadillac CTS/CTS-V Owner ManualM
Climate Controls. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance . . . . . . . . . . . . . . . . . . . 8-6
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-16
Engine Exhaust . . . . . . . . . . . . . . 9-26
Automatic Transmission . . . . . . 9-27
Manual Transmission . . . . . . . . . 9-31
Drive Systems . . . . . . . . . . . . . . . . 9-33
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-33
Ride Control Systems . . . . . . . . 9-38
Cruise Control . . . . . . . . . . . . . . . . 9-41
Object Detection Systems . . . . 9-44
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-50
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-55
Conversions and Add-Ons . . . 9-61 Vehicle Care
. . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-3
Vehicle Checks . . . . . . . . . . . . . . . 10-4
Headlamp Aiming . . . . . . . . . . . 10-34
Bulb Replacement . . . . . . . . . . 10-37
Electrical System . . . . . . . . . . . . 10-39
Wheels and Tires . . . . . . . . . . . 10-63
Jump Starting . . . . . . . . . . . . . . 10-104
Towing . . . . . . . . . . . . . . . . . . . . . 10-108
Appearance Care . . . . . . . . . . 10-110
Service and Maintenance . . . 11-1
General Information . . . . . . . . . . 11-1
Cadillac Premium Care
Maintenance . . . . . . . . . . . . . . . . 11-3
Maintenance Schedule . . . . . . . 11-3
Special Application Services . . . . . . . . . . . . . . . . . . . . 11-9
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . 11-10 Recommended Fluids,
Lubricants, and Parts . . . . . . 11-13
Maintenance Records . . . . . . . 11-17
Technical Data . . . . . . . . . . . . . . . 12-1
Vehicle Identification . . . . . . . . . 12-1
Vehicle Data . . . . . . . . . . . . . . . . . . 12-2
Customer Information . . . . . . . 13-1
Customer Information . . . . . . . . 13-1
Reporting Safety Defects . . . . 13-18
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . 13-19
OnStar . . . . . . . . . . . . . . . . . . . . . . . 14-1
OnStar Overview . . . . . . . . . . . . . 14-1
OnStar Services . . . . . . . . . . . . . . 14-2
OnStar Additional Information . . . . . . . . . . . . . . . . . . 14-5
Index . . . . . . . . . . . . . . . . . . . . . i-1

Black plate (12,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
2-12 Keys, Doors, and Windows
Remote Vehicle Start
This vehicle may have a remote
starting feature that allows you to
start the engine from outside the
vehicle.
/(Remote Vehicle Start):This
button will be on the RKE
transmitter if you have remote start.
The automatic climate control will
begin to heat or cool your vehicle
during remote start depending on
the temperature inside and outside
of the vehicle. The windshield
defroster and/or rear window
defogger turn on if it is cold outside.
If the vehicle has heated seats, they
may also be turned on during
remote start to warm up the seats in
cold weather. Normal operation of
the climate control system returns
after the ignition is turned to ON/
RUN. See Dual Automatic Climate
Control System on page 8‑1.
Laws in some local communities
may restrict the use of remote
starters. For example, some laws
may require a person using remote start to have the vehicle in view
when doing so. Check local
regulations for any requirements on
remote starting of vehicles.
If your vehicle is low on fuel, do not
use the remote start feature. The
vehicle may run out of fuel.
If your vehicle has the remote start
feature, the RKE transmitter
functions will have an increased
range of operation. However, the
range may be less while the vehicle
is running.
Other conditions can affect the
performance of the transmitter; see
Remote Keyless Entry (RKE)
System on page 2‑4
for additional
information.
Starting the Engine Using Remote
Start
To start the engine using the remote
start feature:
1. Aim the transmitter at the vehicle
and press and release
Qon the
transmitter. 2. Press and hold
/for at least
four seconds or until the
vehicle's turn signal lamps flash.
The parking lamps will turn on
and remain on as long as the
engine is running. The vehicle's
doors will be locked.
3. After entering the vehicle during a remote start, press the brake
pedal and turn the ignition to
ON/RUN to drive the vehicle.
After a remote start, the engine
will automatically shut off after
10 minutes unless a time
extension has been done or
the ignition has been turned to
ON/RUN.
Extending Engine Run Time
To extend the engine run time by
10 minutes, repeat Steps 1 and 2
while the engine is still running.
The engine run time can only be
extended if it is the first remote start
since the vehicle has been driven.
Remote start can be extended
one time.

Black plate (21,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Keys, Doors, and Windows 2-21
WARNING (Continued)
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on
or under the instrument
panel.
.Adjust the Climate Control
system to a setting that
brings in only outside air and
set the fan speed to the
highest setting. See“Climate
Control Systems” in the
Index.
.If the vehicle is equipped with
a power liftgate, disable the
power liftgate function.
For more information about
carbon monoxide, see Engine
Exhaust on page 9‑26.
{WARNING
You or others could be injured if
caught in the path of the power
liftgate. Make sure there is no one
in the way of the liftgate as it is
opening and closing.
Notice: If you open the liftgate
without checking for overhead
obstructions such as a garage
door, you could damage the
liftgate or the liftgate glass.
Always check to make sure the
area above and behind the liftgate
is clear before opening it.
Vehicles with an automatic
transmission must be in P (Park)
and a manual transmission must be
in Neutral to operate the power
liftgate. The taillamps flash when
the power liftgate moves.
Turn the selector switch to choose
one of three modes:
MAX: The liftgate power opens to
the full open height.
3/4: The liftgate power opens to a
reduced open height that can be set
in a range of approximately ¾ open
to full open. Use this setting to
prevent the liftgate from opening

Black plate (10,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
5-10 Instruments and Controls
Ashtrays
The vehicle may have two
removable ashtrays. One ashtray
can be placed into the instrument
panel storage compartment and the
other into the center console rear
compartment.
To empty the ashtrays, hold on to
the edges of the bin and pull straight
out. To reinstall, push the tray back
into place.
Notice:If papers, pins, or other
flammable items are put in the
ashtray, hot cigarettes or other
smoking materials could ignite
them and possibly damage the
vehicle. Never put flammable
items in the ashtray.
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. Follow this manual's advice.
Waiting to do repairs can be costly
and even dangerous.

Black plate (15,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Instruments and Controls 5-15
For the CTS-V, the tachometer
tracer lights flash prior to reaching
engine speed limit. The tracer lights
also flash on automatic transmission
vehicles while in the DSC or Tap
Shift modes.
Engine Oil Pressure
Gauge
Metric
English
For vehicles with an engine oil
pressure gauge, it shows the engine
oil pressure in kPa (kilopascals)
or psi (pounds per square inch)
when the engine is running.
Oil pressure may vary with engine
speed, outside temperature, and oil
viscosity, but if readings are outside
the normal operating range, the oil
pressure light will come on. See
Engine Oil Pressure Light on
page 5‑25 for more information. A reading outside the normal
operating range may be caused
by a dangerously low oil level or
some other problem causing low oil
pressure. Oil should be checked as
soon as possible. See Oil Pressure
Low Stop Engine under
Engine Oil
Messages on page 5‑35 andEngine
Oil on page 10‑10.
{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 for changing engine oil.

Black plate (19,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Instruments and Controls 5-19
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.
The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
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 the operation
of the vehicle to ensure emissions
are at acceptable levels, to produce
a cleaner environment. This light
comes on when the vehicle is
placed in ON/RUN as a check to
show it is working. If it does not,
have the vehicle serviced by your
dealer. See Ignition Positions (Key
Access) on page 9‑16 orIgnition
Positions (Keyless Access) on
page 9‑18 for more information.
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 (Include Mex) - 2012
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 dealer technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is
continually driven with this light
on, the emission controls might
not work as well, the vehicle 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 10‑3.
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. 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.
The following may correct an
emissions system malfunction:
.Check that the fuel cap is fully
installed. See Filling the Tank on
page 9‑53. The diagnostic
system can determine if the
fuel cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel to
evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn the
light off.

Black plate (21,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012
Instruments and Controls 5-21
.Check that good quality fuel is
used. Poor fuel quality causes
the engine not to run as
efficiently as designed and may
cause stalling after start-up,
stalling when the vehicle is
changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up.
If one or more of these conditions
occurs, change the fuel brand used.
It will require at least one full tank of
the proper fuel to turn the light off.
See Recommended Fuel on
page 9‑51.
If none of the above have made
the light turn off, your dealer can
check the vehicle. The dealer
has the proper test equipment
and diagnostic tools to fix any
mechanical or electrical problems
that might have developed.Emissions Inspection and
Maintenance Programs
Some local governments may have
programs to inspect the on-vehicle
emission control equipment. For the
inspection, the emission system test
equipment is connected to the
vehicle’s Data Link
Connector (DLC).
The DLC is under the instrument
panel to the next to the steering
wheel. See your dealer if assistance
is needed.
The vehicle may not pass
inspection if:
.The malfunction indicator lamp is
on with the engine running, or if
the light does not come on when
the ignition is turned to ON/RUN while the engine is off. See your
dealer for assistance in verifying
proper operation of the
malfunction indicator lamp.
.The OBD II (On-Board
Diagnostics) system determines
that critical emission control
systems have not been
completely diagnosed. The
vehicle would be considered not
ready for inspection. This can
happen if the 12-volt battery has
recently been replaced or run
down. The diagnostic system is
designed to evaluate critical
emission control systems during
normal driving. This can take
several days of routine driving.
If this has been done and the
vehicle still does not pass the
inspection for lack of OBD II
system readiness, your dealer
can prepare the vehicle for
inspection.