2017 CADILLAC ATS COUPE check engine

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
198 DRIVING AND OPERATING
Hill Start Assist (HSA)
This vehicle has a Hill Start Assist
(HSA) feature, which may be useful
when the vehicle is stopped on a
grade sufficient enough to activate
HSA. This feature is designed to
prevent the vehicle from rolling, either
forward or rearward, during vehicle
drive off. After the driver completely
stops and holds the vehicle in a
complete standstill on a grade, HSA
will be automatically activated. During
the transition period between when
the driver releases the brake pedal and
starts to accelerate to drive off on a
grade, HSA holds the braking pressure
for a maximum of two seconds to
ensure that there is no rolling. The
brakes will automatically release when
the accelerator pedal is applied within
the two-second window. It will not
activate if the vehicle is in a drive gear
and facing downhill, or if the vehicle
is facing uphill and in R (Reverse).
Ride Control Systems
Traction Control/Electronic
Stability Control
System Operation
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, TCS applies the brakes to the
spinning wheels and reduces engine
power to limit wheel spin.
StabiliTrak activates when the vehicle
senses a difference between the
intended path and the direction the
vehicle is actually traveling.
StabiliTrak selectively applies braking
pressure to any one of the vehicle
wheel brakes to assist the driver in
keeping the vehicle on the
intended path. 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 0180 and “Turning
the Systems Off and On ”later in this
section.

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
228 DRIVING AND OPERATING
Sedan–Cap Type Fuel System
The cap is behind the fuel door on the
passenger side of the vehicle.
If equipped, the fuel door is locked
when the vehicle doors are locked.
Press
Kon the RKE transmitter to
unlock.
To remove the fuel cap, turn it slowly
counterclockwise.
While refueling, hang the fuel cap
from the hook on the fuel door. When replacing the fuel cap, turn it
clockwise until it clicks once. Make
sure the cap is fully installed. The
diagnostic system can determine if
the fuel cap has been left off or
improperly installed. This would allow
fuel to evaporate into the atmosphere.
See
Malfunction Indicator Lamp (Check
Engine Light) 0114.
Caution
If a new fuel cap is needed, be sure
to get the right type of cap from
your dealer. The wrong type of fuel
cap may not fit properly, may cause
the malfunction indicator lamp to
light, and could damage the fuel
tank and emissions system. See
Malfunction Indicator Lamp (Check
Engine Light) 0114. Coupe
–Capless Fuel System
The coupe vehicle has a capless
refueling system and does not have a
fuel cap. The filling nozzle must be
fully inserted and latched prior to
starting fuel flow.

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
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230 DRIVING AND OPERATING
Trailer Towing
General Towing
Information
The vehicle is neither designed nor
intended to tow a trailer or another
vehicle.
For information on towing a disabled
vehicle, seeTowing the Vehicle 0295.
For information on towing the vehicle
behind another vehicle such as a
motor home, see Recreational Vehicle
Towing 0296.
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. See Malfunction Indicator
Lamp (Check Engine Light) 0114.
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 077 and
Adding Equipment to the
Airbag-Equipped Vehicle 077.

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
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VEHICLE CARE 231
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 232
Accessories andModifications . . . . . . . . . . . . . . . . . . . 232
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 233
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 234
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 241
Engine Oil Life System . . . . . . . . . . . 243
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Engine Air Cleaner/Filter . . . . . . . . . 245
Cooling System (Engine) . . . . . . . . . 246
Cooling System (Intercooler) . . . . 248
Engine Coolant . . . . . . . . . . . . . . . . . . . 248
Engine Overheating . . . . . . . . . . . . . . 251
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 253
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 254
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Starter Switch Check . . . . . . . . . . . . . 256
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 257
Wiper Blade Replacement . . . . . . . 257
Windshield Replacement . . . . . . . . 258
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 258
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 259
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 259
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 259
LED Lighting . . . . . . . . . . . . . . . . . . . . . 259
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 259
License Plate Lamp . . . . . . . . . . . . . . 260
Replacement Bulbs . . . . . . . . . . . . . . . 261
Electrical System
Electrical System Overload . . . . . . 261
Fuses and Circuit Breakers . . . . . . 261
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Instrument Panel Fuse Block . . . . 265
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
All-Season Tires . . . . . . . . . . . . . . . . . . 271
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 271
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 271 Summer Tires . . . . . . . . . . . . . . . . . . . . 272
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 273
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . 274
Tire Pressure Monitor System . . . 274
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . . . . . . 275
Tire Inspection . . . . . . . . . . . . . . . . . . . 278
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 278
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Buying New Tires . . . . . . . . . . . . . . . . 280
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Wheel Replacement . . . . . . . . . . . . . . 282
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 284
If a Tire Goes Flat . . . . . . . . . . . . . . . . 284
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 286
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 292
Jump Starting
Jump Starting . . . . . . . . . . . . . . . . . . . . . 292
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 295
Recreational Vehicle Towing . . . . 296

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
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VEHICLE CARE 241
1. Windshield Washer FluidReservoir. See Washer
Fluid 0253.
2. Remote Positive (+) Battery Terminal. See Jump
Starting 0292.
3. Remote Negative (-) Battery Terminal. See Jump
Starting 0292.
4. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
(Engine) 0246 orCooling System
(Intercooler) 0248.
5. Engine Compartment Fuse
Block 0262.
6. Engine Cooling Fan (Out of View). See Cooling System
(Engine) 0246 orCooling System
(Intercooler) 0248.
7. Engine Oil Fill Cap. See Engine
Oil 0241.
8. Engine Oil Dipstick. See Engine
Oil 0241.
9. Brake Fluid Reservoir. See Brake
Fluid 0254.
10. Engine Air Cleaner/Filter 0245.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 0243.
. 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 0234 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 ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
242 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 L4 Engine (LTG) and 2.5L L4
Engine (LCV)
3.6L V6 Engine (LGX)
3.6L V6 Twin Turbo Engine (LF4)
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 0319.
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
oil level gets above the
(Continued)
Caution (Continued)
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
0 234 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 0314.
Specification
Ask for and use engine oils that meet
the dexos1™ specification. Engine oils
that have been approved by GM as

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
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244 VEHICLE CARE
When the system has calculated that
oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE OIL
SOON message comes on. SeeEngine
Oil Messages 0130. Change the oil as
soon as possible within the next
1 000 km (600 mi). It is possible that,
if driving under the best conditions,
the oil life system might indicate that
an oil change is not necessary for up
to a year. The engine oil and filter
must be changed at least once a year
and at this time the system must be
reset. Your dealer has trained service
people who will perform this work and
reset the system. It is also important
to check the oil regularly over the
course of an oil drain interval and
keep it at the proper level.
If the system is ever reset accidentally,
the oil must be changed at 5 000 km
(3,000 mi) since the last oil change.
Remember to reset the oil life system
whenever the oil is changed.How to Reset the Engine Oil Life
System
Reset the system whenever the engine
oil is changed so that the system can
calculate the next engine oil change.
To reset the system:
1. Using the DIC controls on the right side of the steering wheel,
display REMAINING OIL LIFE on
the DIC. See Driver Information
Center (DIC) 0122. When
remaining oil life is low, the
CHANGE ENGINE OIL SOON
message will appear on the
display. See Engine Oil
Messages 0130.
2. Press SEL on the DIC controls and hold SEL down for a few
seconds to clear the CHANGE
ENGINE OIL SOON message and
reset the oil life at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is
changed. It cannot be reset
accurately until the next oil
change. The oil life system can also be reset as
follows:
1. Turn the ignition on with the engine off.
2. Fully press and release the accelerator pedal three times
within five seconds.
If the CHANGE ENGINE OIL
SOON message is not on, the
system is reset.
The system is reset when the
CHANGE ENGINE OIL SOON message
is off.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat the
procedure.
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check the
transmission fluid level.
A transmission fluid leak is the only

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
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VEHICLE CARE 245
reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and
have it repaired as soon as possible.
The vehicle is not equipped with a
transmission fluid level dipstick.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, this should be
done at the dealer. Contact your dealer
for additional information.
Change the fluid and filter at the
intervals listed inMaintenance
Schedule 0307, and be sure to use the
fluid listed in Recommended Fluids and
Lubricants 0314.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the driver
side of the vehicle. See Engine
Compartment Overview 0234 for
location.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/filter,
see Maintenance Schedule 0307.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air cleaner/filter,
make sure that the engine air cleaner/
filter housing and nearby components
are free of dirt and debris. Remove the
engine air cleaner/filter. Lightly tap
and shake the engine air cleaner/filter
(away from the vehicle), to release
loose dust and dirt. Inspect the engine
air cleaner/filter for damage, and
replace if damaged. Do not clean the
engine air cleaner/filter or
components with water or
compressed air. To inspect or replace the air cleaner/
filter:
2.0L L4 Engine (LTG) Shown, 2.5L L4
Engine (LCV), and 3.6L V6 Engine (LGX) Similar
1. Remove the four screws and lift the cover out of the assembly.
2. Inspect or replace the engine air cleaner/filter.
3. Lower the cover and secure with the four screws.