check engine CADILLAC CTS 2013 2.G User Guide

Black plate (35,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Instruments and Controls 5-35
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
Notice:If you drive the vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument cluster
and/or DIC, stop the vehicle as
soon as possible. Do not increase
the engine speed above normal
idling speed. See Engine
Overheating on page 10‑21 for
more information.
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down. If the
message does not clear in a few
minutes or if the overheat light stays
on, shut the vehicle off and have it
serviced before driving again. See
Engine Coolant Temperature
Warning Light on page 5‑24. See
Overheated Engine Protection
Operating Mode on page 10‑22 for
information on driving to a safe
place in an emergency.
Engine Oil Messages
CHANGE ENGINE OIL SOON
When this message displays, it
means that service is required for
the vehicle. See your dealer. See
Maintenance Schedule on
page 11‑3 andEngine Oil on
page 10‑9.
When you reset the CHANGE
ENGINE OIL SOON message by
clearing it from the display, you still
must reset the engine oil life system
separately. For more information on
resetting the engine oil life system,
see Engine Oil Life System on
page 10‑11.
ENGINE OIL LOW ADD OIL
On some vehicles, this message
displays if the oil level in the vehicle
is low. Check the oil level before
filling to the recommended level. You may need to let the vehicle cool
or warm up and cycle the ignition to
be sure this message clears. If the
oil is not low and this message
continues to be displayed, take the
vehicle to your dealer for service.
This message clears itself after
10 seconds, until the next ignition
cycle. See
Engine Oil on page 10‑9.
OIL PRESSURE LOW STOP
ENGINE
Notice:If you drive the vehicle
while the engine oil pressure is
low, severe engine damage may
occur. If a low oil pressure
warning appears on the
instrument 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. See Engine
Oil on page 10‑9 for more
information.
This message displays when the
vehicle's engine oil pressure is low.
The oil pressure light may also
appear on the instrument cluster.

Black plate (36,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
5-36 Instruments and Controls
SeeEngine Oil Pressure Light on
page 5‑25. See Engine Oil on
page 10‑9.
Stop the vehicle immediately, as
engine damage can result from
driving a vehicle with low oil
pressure. Have the vehicle serviced
by your dealer as soon as possible
when this message is displayed.
Engine Power Messages
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, take the vehicle to your
dealer for service as soon as
possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays when the
vehicle is low on fuel. Refill the fuel
tank as soon as possible. A chime
may sound when this message
displays. See
Filling the Tank on
page 9‑49.
TIGHTEN GAS CAP
This message displays when the
fuel cap has not been fully
tightened. Recheck the fuel cap to
ensure that it is on and tightened
properly.
Key and Lock Messages
ACCESSORY MODE ACTIVE
If the vehicle has the keyless
access system, this message
displays when the accessory mode is active. See
Ignition Positions
(Keyless Access) on page 9‑15 or
Ignition Positions (Key Access) on
page 9‑17 for more information.
ELECTRONIC KEY ALREADY
KNOWN
If the vehicle has the keyless
access system, this message
displays if you try to match a
transmitter that has already been
learned. See the keyless access
information for Remote Keyless
Entry (RKE) System Operation (Key
Access) on page 2‑4 orRemote
Keyless Entry (RKE) System
Operation (Keyless Access) on
page 2‑6 for more information.

Black plate (42,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
5-42 Instruments and Controls
To realize the full benefits of the
stability enhancement system, you
should normally leave StabiliTrak
on. To turn StabiliTrak on or off, see
StabiliTrak
®System on page 9‑36.
There are several conditions that
can cause this message to appear:
.If there is overheating, which
could occur if StabiliTrak
activates continuously for an
extended period of time.
.If the brake system warning light
is on. See Brake System
Warning Light on page 5‑22.
.If the stability system takes
longer than usual to complete its
diagnostic checks due to driving
conditions.
.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 9‑38.
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 9‑38.
TRACTION CONTROL OFF
This message displays when the
traction control system has been
turned off.
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 5‑17 for
more information.
Security 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 (Keyless
Access) on page 2‑25 or
Immobilizer Operation (Key Access)
on page 2‑24 for more information.

Black plate (6,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
8-6 Climate Controls
Air Vents
Use the air outlets in the center and
on the side of the instrument panel
to direct the airflow. Use the
thumbwheels near the air outlets to
open or close off the airflow.
Operation Tips
.Clear away any ice, snow,
or leaves from air inlets at the
base of the windshield that could
block the flow of air into the
vehicle.
.Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
.Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.
Check with your dealer before
adding equipment to the outside
of the vehicle.
Maintenance
Passenger Compartment
Air Filter
The passenger compartment air
filter traps most of the dust and
pollen from the air entering the
vehicle. The filter will need to be
changed periodically. See
Maintenance Schedule on
page 11‑3.
Using the climate control system
without the passenger air filter
installed could let water or other
debris enter the system. This could
cause a water leak or noises. Make
sure a new air filter is installed after
removing the old one.
The passenger compartment air
filter is under the hood below the
windshield wiper arm and the
screen on the passenger side of the
vehicle. SeeEngine Compartment
Overview on page 10‑5 for more
information on location.

Black plate (5,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Driving and Operating 9-5
2. Turn the steering wheel aboutone-eighth of a turn, until the
right front tire contacts the
pavement edge.
3. Turn the steering wheel to go straight down the roadway.
Loss of Control
Skidding
There are three types of skids that
correspond to the vehicle's three
control systems:
.Braking Skid —wheels are not
rolling.
.Steering or Cornering Skid —
too much speed or steering in a
curve causes tires to slip and
lose cornering force.
.Acceleration Skid —too much
throttle causes the driving
wheels to spin. Defensive drivers avoid most skids
by taking reasonable care suited to
existing conditions, and by not
overdriving those conditions. But
skids are always possible.
If the vehicle starts to slide, follow
these suggestions:
.Ease your foot off the
accelerator pedal and steer the
way you want the vehicle to go.
The vehicle may straighten out.
Be ready for a second skid if it
occurs.
.Slow down and adjust your
driving according to weather
conditions. Stopping distance
can be longer and vehicle
control can be affected when
traction is reduced by water,
snow, ice, gravel, or other
material on the road. Learn to
recognize warning clues
—such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
.Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes help
avoid only the braking skid.
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 10‑9.

Black plate (6,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
9-6 Driving and Operating
CTS‐V Only: Be sure to check the
oil level often during racing, track
testing or other competitive driving
and keep the level at or near the
upper mark that shows the proper
operating range on the engine oil
dipstick.
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.
HF V6 Engine Only: Be sure to
check the oil level often during
racing, track testing or other
competitive driving and keep the
level at or near 0.5 L (0.5 qt) above
the upper mark that shows the
proper operating range on the
engine oil dipstick. For racing, tracktesting or other competitive driving
an engine oil cooler must be
installed.
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.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
(Continued)
WARNING (Continued)
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
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.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.

Black plate (7,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Driving and Operating 9-7
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. SeeTires on
page 10‑58.
.Turn off cruise control.
Highway Hypnosis
Always be alert and pay attention to
your surroundings while driving.
If you become tired or sleepy, find a
safe place to park the vehicle
and rest.
Other driving tips include:
.Keep the vehicle well ventilated.
.Keep the interior
temperature cool.
.Keep your eyes moving —scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{WARNING
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
(Continued)
WARNING (Continued)
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.
{WARNING
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. The brakes will have
to do all the work of slowing down
and they could get so hot that
they would not work well. You
would then have poor braking or
even none going down a hill.
Steering may also be affected
when ignition is off. You could
crash. Always have the engine
running and the vehicle in gear
when going downhill.

Black plate (9,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Driving and Operating 9-9
{WARNING
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle is stuck in the snow:
.Clear away snow from around
the base of your vehicle,
especially any that is blocking
the exhaust pipe.
.Check again from time to
time to be sure snow does
not collect there.
.Open a window about 5 cm
(2 in) on the side of the
vehicle that is away from the
wind to bring in fresh air.(Continued)
WARNING (Continued)
.Fully open the air outlets on
or under the instrument
panel.
.Adjust the climate control
system to a setting that
circulates the air inside the
vehicle and set the fan speed
to the highest setting. See
“Climate Control Systems” in
the Index.
For more information about
carbon monoxide, see Engine
Exhaust on page 9‑24.
Run the engine for short periods
only as needed to keep warm, but
be careful.
To save fuel, run the engine for only
short periods as needed to warm
the vehicle and then shut the engine
off and close the window most of
the way to save heat. Repeat this
until help arrives but only when you feel really uncomfortable from the
cold. Moving about to keep warm
also helps.
If it takes some time for help to
arrive, now and then when you run
the engine, push the accelerator
pedal slightly so the engine runs
faster than the idle speed. This
keeps the battery charged to restart
the vehicle and to signal for help
with the headlamps. Do this as little
as possible to save fuel.
If the Vehicle Is Stuck
Slowly and cautiously spin the
wheels to free the vehicle when
stuck in sand, mud, ice, or snow.
If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method. See
Traction
Control System (TCS) on
page 9‑35.

Black plate (15,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Driving and Operating 9-15
manual transmission, shift to the
next lower gear. This rule
applies at all times, not just
during the break-in period.
.Do not participate in track
events, sport driving schools,
or similar activities during this
break–in period.
.Check engine oil with every
refueling and add if necessary.
Oil and fuel consumption may be
higher than normal during the
first 2 414 km (1,500 miles).
.To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first
322 km (200 miles). New tires do
not have maximum traction and
may tend to slip.
.New brake linings also need a
break–in period. Avoid making
hard stops during the first
322 km (200 miles). This is
recommended every time brake
linings are replaced.
Ignition Positions
(Keyless Access)
The ignition control knob can be
turned to four different positions.
To shift out of P (Park), the ignition
must be in ON/RUN or ACC/
ACCESSORY and the regular brake
pedal must be applied.
Using a tool to force the ignition
control knob from its cylinder could
damage it.Make sure the keyless access
transmitter is inside the vehicle
when trying to turn the ignition
control knob.
1 (STOPPING THE ENGINE/LOCK/
OFF):
When the vehicle is stopped,
turn the ignition switch to LOCK/
OFF to turn the engine off. Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) on page 9‑21.
The ignition control knob cannot be
removed from the vehicle. The
keyless access transmitter must be
inside the vehicle to start the
engine. This position locks the
ignition and shift lever on automatic
transmission vehicles, and the
ignition and steering wheel on
manual transmission vehicles.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.

Black plate (31,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Driving and Operating 9-31
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 10‑98.
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.
Remember: ABS does not change
the time needed to get a foot up to
the brake pedal or always decrease
stopping distance. If you get too
close to the vehicle in front of you,
there will not be enough time to
apply the brakes if that vehicle