check engine CADILLAC CTS 2017 3.G User Guide

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
DRIVING AND OPERATING 185
to a lower gear. Any sudden
changes could cause the tires to
slide.
Remember: Antilock brakes help avoid
only the braking skid.
Track Events and
Competitive Driving
Track events and competitive driving
may affect the vehicle warranty. See
the warranty manual before using the
vehicle for competitive driving.
Caution
If the vehicle is used for track
events and competitive driving, the
engine may use more oil than it
would with normal use. Low oil
levels can damage the engine.
Check the oil level often and
maintain the proper level. See
Engine Oil 0257.
Engine Oil
2.0L (LTG) Engine
This is not available with a track
package option and is not
recommended for track use.
3.6L Twin Turbo (LF3) Engine
This requires premium fuel, and
comes standard with a 6.63 L (7 qt)
sump, integrated oil cooler, and other
powertrain and powertrain cooling
components in preparation for
track use.
3.6L (LGX) Engine
.
With Oil Cooler: Confirm the oil
level is at the upper mark that
shows the proper operating range
on the engine oil dipstick.
. Without Oil Cooler: Do not use for
track events and competitive
driving.
6.2L Supercharged (LT4) Engine
Change the engine oil to 0W-40 or
5W-40 that meets the dexos2™
specification. If this oil is not
available, the following oils can be
used as an alternative: Valvoline
®
SYNPOWER MST 5W-40, Mobil®1
ESP Formula M 5W-40. See Capacities
and Specifications 0336.
This requires premium fuel, and
comes standard with a 10 qt sump,
air/oil separator, integrated oil cooler,
and other powertrain and powertrain
cooling components in preparation for
track use.
Check the oil level often during track
events and competitive driving and
keep the oil level at or near the
upper mark.
Automatic Transmission Fluid
Have the transmission fluid set to the
track specific oil level prior to track
usage. Transmission fluid should be
changed after 30 hours of track usage.
Any transmission level set or change
should be performed at your dealer.
Axle Fluid
Axles must have 805 km (500 mi)
before being used in track driving.
The front, if equipped with AWD, and
rear axle fluid temperatures may be
higher than when driving in severe
conditions. Drain and refill with new

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
190 DRIVING AND OPERATING
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
. Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the vehicle
on a long downhill slope can cause
brake overheating, can reduce brake
performance, and could result in a
loss of braking. Shift the
transmission to a lower gear 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.
This can cause overheating of the
brakes and loss of steering. Always
have the engine running and the
vehicle in gear. .
Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills; something
could be in your lane (e.g., stalled
car, accident).
. Pay attention to special road signs
(e.g., falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and the
road creates less traction or grip, so
drive carefully. Wet ice can occur at
about 0 °C (32 °F) when freezing rain
begins to fall. Avoid driving on wet ice
or in freezing rain until roads can be
treated.
For slippery road driving:
.Accelerate gently. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick. .
Turn on Traction Control. See
Traction Control/Electronic Stability
Control 0209.
. Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes should
be applied sooner than when on
dry pavement. See Antilock Brake
System (ABS) 0206.
See Driver Mode Control 0211
. Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise
clear roads in shaded areas. The
surface of a curve or an overpass
can remain icy when the
surrounding roads are clear. Avoid
sudden steering maneuvers and
braking while on ice.
. Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby. Get help
and keep everyone in the vehicle safe:
.Turn on the hazard warning
flashers.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
196 DRIVING AND OPERATING
.Check engine oil with every
refueling and add if necessary. Oil
and fuel consumption may be
higher than normal during the
first 2 400 km (1,500 mi).
. To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first
300 km (200 mi). 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
300 km (200 mi). This is
recommended every time brake
linings are replaced.
Composite Materials
This vehicle may be equipped with
parts containing carbon fiber,
sheet-molding compound or other
composite materials. Dealer-installed
accessories may also contain
composite materials. These parts and
accessories may include the splitter or
rocker extensions.
{Warning
Exposed edges of parts containing
carbon fiber and other composite
materials can be sharp. Contact
with these parts could result in
injury. Use caution to avoid
contacting these parts, including
when washing the vehicle. If the
parts are damaged, replace the
parts promptly with replacements
from your dealer.
{Warning
Rocker extensions may break under
pressure, resulting in property
damage or injury. Do not stand on
the rocker extension or use it as
a step.
Ignition Positions
The vehicle has an electronic keyless
ignition with pushbutton start.
Pressing the button cycles it through
three modes: ACC/ACCESSORY, ON/
RUN/START, and Stopping the
Engine/OFF.
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference to
the Keyless Access system. See Remote
Keyless Entry (RKE) System
Operation 029.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
206 DRIVING AND OPERATING
climbing or descending hills, to stay in
gear longer, or to downshift for more
power or engine braking.
The transmission will only allow you
to shift into gears appropriate for the
vehicle speed and engine revolutions
per minute (rpm). The transmission
will not automatically shift to the next
lower gear if the engine rpm is too
high, nor to the next higher gear when
the maximum engine rpm is reached.
If shifting is prevented for any reason,
a SHIFT DENIED message will be
displayed in the instrument cluster.
SeeTransmission Messages 0147.
When accelerating the vehicle from a
stop in snowy and icy conditions, it is
suggested to shift into second gear.
A higher gear allows the vehicle to
gain more traction on slippery
surfaces.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.
Brakes
Antilock Brake
System (ABS)
This vehicle has an Antilock Brake
System (ABS), an advanced electronic
braking system that helps prevent a
braking skid.
When the vehicle begins to drive
away, ABS checks itself. A momentary
motor or clicking noise may be heard
while this test is going on, and it may
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 0126.
If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to avoid

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
DRIVING AND OPERATING 207
a sudden obstacle, a computer senses
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 you
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 suddenly slows
or stops. Always leave enough room
up ahead to stop, even with ABS.Using ABS
Do not pump the brakes. Just hold the
brake pedal down firmly and let ABS
work. You may hear the ABS pump or
motor operating and feel the brake
pedal pulsate. This is normal.
Braking in Emergencies
ABS allows you to steer and brake at
the same time. In many emergencies,
steering can help more than even the
very best braking.
Electric Parking Brake
The vehicle has an Electric Parking
Brake (EPB). The switch for the EPB is
on the instrument panel, to the left of
the steering wheel. The EPB can
always be activated, even if the
ignition is off. To prevent draining the
battery, avoid repeated cycles of the
EPB system when the engine is not
running.
The system has a red parking brake
status light and an amber parking
brake warning light. SeeParking Brake
Light 0125 and Service Electric Parking
Brake Light 0126. There are also
parking brake-related Driver
Information Center (DIC) messages.
See Brake System Messages 0138. In
case of insufficient electrical power,
the EPB cannot be applied or released.
Before leaving the vehicle, check the
red parking brake status light to
ensure that the parking brake is
applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
DRIVING AND OPERATING 209
brake pedal in an attempt to quickly
stop or slow down the vehicle. The
stability system hydraulic brake
control module increases brake
pressure at each corner of the vehicle
until the ABS activates. Minor brake
pedal pulsation or pedal movement
during this time is normal and the
driver should continue to apply the
brake pedal as the driving situation
dictates. The brake assist feature will
automatically disengage when the
brake pedal is released or brake pedal
pressure is quickly decreased.Ride Control Systems
Traction Control/Electronic
Stability Control
The vehicle has a Traction Control
System (TCS) and StabiliTrak®, an
electronic stability control system.
These systems help limit wheel slip
and assist the driver in maintaining
control, especially on slippery road
conditions.
TCS activates if it senses that any of
the drive wheels are spinning or
beginning to lose traction. When this
happens, the system brakes the
spinning wheel(s) and/or reduces
engine power to limit wheel spin.
StabiliTrak activates when the
computer senses a difference between
the intended path and the direction
the vehicle is actually traveling.
StabiliTrak selectively applies braking
pressure at any one of the vehicle's
brakes to help steer the vehicle in the
intended direction. If cruise control is being used and
traction control or StabiliTrak begins
to limit wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road conditions
allow.
Both systems come on automatically
when the vehicle is started and begins
to move. The systems may be heard or
felt while they are operating or while
performing diagnostic checks. This is
normal and does not mean there is a
problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but It may be necessary to
turn TCS off if the vehicle gets stuck
in sand, mud, ice, or snow. See
If the
Vehicle Is Stuck 0191 and “Turning
the Systems Off and On ”later in this
section.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
246 DRIVING AND OPERATING
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. SeeMalfunction Indicator
Lamp (Check Engine Light) 0123.
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle systems.
This could affect vehicle operation
and cause a crash. Such devices
may also access information stored
in the vehicle’s systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and would
not be covered by the vehicle
warranty. Always check with your
dealer before adding electrical
equipment.
Add-on equipment can drain the
vehicle's 12-volt battery, even if the
vehicle is not operating.
The vehicle has an airbag system.
Before attempting to add anything
electrical to the vehicle, see Servicing
the Airbag-Equipped Vehicle 081 and
Adding Equipment to the
Airbag-Equipped Vehicle 081.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
VEHICLE CARE 247
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 248
Accessories andModifications . . . . . . . . . . . . . . . . . . . 248
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 249
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 257
Engine Oil Life System . . . . . . . . . . . 259
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Engine Air Cleaner/Filter . . . . . . . . . 261
Cooling System . . . . . . . . . . . . . . . . . . . 263
Engine Coolant . . . . . . . . . . . . . . . . . . . 264
Engine Overheating . . . . . . . . . . . . . . 267
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 269
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 270
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
All-Wheel Drive . . . . . . . . . . . . . . . . . . 272
Starter Switch Check . . . . . . . . . . . . . 273
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 274
Wiper Blade Replacement . . . . . . . 274
Windshield Replacement . . . . . . . . 275
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 275
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 275
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 275
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 276
LED Lighting . . . . . . . . . . . . . . . . . . . . . 276
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 276
License Plate Lamp . . . . . . . . . . . . . . 277
Replacement Bulbs . . . . . . . . . . . . . . . 277
Electrical System
Electrical System Overload . . . . . . 278
Fuses and Circuit Breakers . . . . . . 278
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Instrument Panel Fuse Block . . . . 282
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
All-Season Tires . . . . . . . . . . . . . . . . . . 288
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 288
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 288 Low-Profile Tires . . . . . . . . . . . . . . . . . 289
Summer Tires . . . . . . . . . . . . . . . . . . . . 289
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 290
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . 291
Tire Pressure Monitor System . . . 292
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 293
Tire Inspection . . . . . . . . . . . . . . . . . . . 296
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 296
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Buying New Tires . . . . . . . . . . . . . . . . 298
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Wheel Replacement . . . . . . . . . . . . . . 300
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 301
If a Tire Goes Flat . . . . . . . . . . . . . . . . 302
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 303
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 309
Jump Starting
Jump Starting . . . . . . . . . . . . . . . . . . . . . 310
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 312
Recreational Vehicle Towing . . . . 313

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
VEHICLE CARE 257
1. Windshield Washer FluidReservoir. See Washer
Fluid 0269.
2. Remote Positive (+) Battery Terminal. See Jump
Starting 0310.
3. Engine Compartment Fuse
Block 0279.
4. Engine Coolant Surge Tank and Pressure Cap. See Cooling
System 0263.
5. Remote Negative (-) Battery Terminal. See Jump
Starting 0310.
6. Engine Oil Dipstick. See Engine
Oil 0257.
7. Engine Cooling Fan (Out of View). See Cooling System 0263.
8. Engine Oil Fill Cap (Out of View). See Engine Oil 0257.
9. Engine Air Cleaner/Filter 0261.
10. Brake Fluid Reservoir. See Brake
Fluid 0270.Engine Oil
To ensure proper engine performance
and long life, careful attention must
be paid to engine oil. Following these
simple, but important steps will help
protect your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil” in
this section.
. Check the engine oil level regularly
and maintain the proper oil level.
See “Checking Engine Oil” and
“When to Add Engine Oil” in this
section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0259.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly
(every 650 km (400 mi), especially
prior to a long trip. The engine oil dipstick handle is a loop. See
Engine
Compartment Overview 0250 for the
location.
{Warning
The engine oil dipstick handle may
be hot; it could burn you. Use a
towel or glove to touch the dipstick
handle.
If a low oil Driver Information Center
(DIC) message displays, check the oil
level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground. Check
the engine oil level after the
engine has been off for at least
two hours. Checking the engine oil
level on steep grades or too soon
after engine shutoff can result in
incorrect readings. Accuracy
improves when checking a cold
engine prior to starting. Remove
the dipstick and check the level.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-MidEast-10293089) -
2017 - crc - 6/22/16
258 VEHICLE CARE
.If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is warm,
or at least 30 minutes if the
engine is not warm. Pull out the
dipstick, wipe it with a clean paper
towel or cloth, then push it back
in all the way. Remove it again,
keeping the tip down, and check
the level.
When to Add Engine Oil
2.0L LTG L4 Engine
3.6L LF3 V6 Twin Turbo
3.6L LGX V6 Engine Shown, 6.2L LT4
V8 Engine Similar
If the oil is below the cross-hatched
area at the tip of the dipstick and the
engine has been off for at least
15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See “Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use.
For engine oil crankcase capacity, see
Capacities and Specifications 0336.
Caution
Do not add too much oil. Oil levels
above or below the acceptable
operating range shown on the
dipstick are harmful to the engine.
If you find that you have an oil
level above the operating range, i.e.,
the engine has so much oil that the
(Continued)
Caution (Continued)
oil level gets above the
cross-hatched area that shows the
proper operating range, the engine
could be damaged. You should
drain out the excess oil or limit
driving of the vehicle and seek a
service professional to remove the
excess amount of oil.
See Engine Compartment Overview
0 250 for the location of the engine oil
fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0331.
Specification
Ask for and use engine oils that meet
the dexos1™ specification. Engine oils
that have been approved by GM as