Page 225 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
224 DRIVING AND OPERATING
LCA may not always alert the driver to
vehicles in the next lane over,
especially in wet conditions or when
driving on sharp curves. The system
does not need to be serviced. The
system may light up due to guardrails,
signs, trees, shrubs, and other
non-moving objects. This is normal
system operation; the vehicle does not
need service.
LCA may not operate when the LCA
sensors in the left or right corners of
the rear bumper are covered with
mud, dirt, snow, ice, or slush, or in
heavy rainstorms. For cleaning
instructions, see "Washing the
Vehicle" underExterior Care0298.
If the DIC still displays the system
unavailable message after cleaning
both sides of the vehicle toward the
rear corners of the vehicle, see your
dealer.
If the LCA displays do not light up
when moving vehicles are in the side
blind zone or rapidly approaching this
zone and the system is clean, the
system may need service. Take the
vehicle to your dealer.Lane Departure
Warning (LDW)
If equipped, LDW may help avoid
crashes due to unintentional lane
departures. It may provide a warning
if the vehicle is crossing a detected
lane marking without using a turn
signal in the lane departure direction.
Since this system is part of the Lane
Keep Assist (LKA) system, read the
entire LKA section before using this
feature.
Lane Keep Assist (LKA)
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal in
that direction. It may also provide a
Lane Departure Warning (LDW)
system alert as the lane marking is
crossed. The LKA system will not
assist or provide an LDW alert if it
detects that you are actively steering.
Override LKA by turning the steering wheel. LKA uses a camera to detect
lane markings between 60 km/h (37
mph) and 180 km/h (112 mph).
{Warning
The LKA system does not
continuously steer the vehicle.
It may not keep the vehicle in the
lane or give a Lane Departure
Warning (LDW) alert, even if a lane
marking is detected.
The LKA and LDW systems
may not:
. Provide an alert or enough
steering assist to avoid a lane
departure or crash.
. Detect lane markings under
poor weather or visibility
conditions. This can occur if
the windshield or headlamps
are blocked by dirt, snow,
or ice, if they are not in
proper condition, or if the sun
shines directly into the
camera.
. Detect road edges.
(Continued)
Page 226 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
DRIVING AND OPERATING 225
Warning (Continued)
.Detect lanes on winding or
hilly roads.
If LKA only detects lane markings
on one side of the road, it will only
assist or provide an LDW alert
when approaching the lane on the
side where it has detected a lane
marking. Even with LKA and LDW,
you must steer the vehicle. Always
keep your attention on the road and
maintain proper vehicle position
within the lane, or vehicle damage,
injury, or death could occur. Always
keep the windshield, headlamps,
and camera sensors clean and in
good repair. Do not use LKA in bad
weather conditions.
{Warning
Using LKA while towing a trailer or
on slippery roads could cause loss
of control of the vehicle and a
crash. Turn the system off.
How the System Works
The LKA camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LKA on and off, press
Ato
the left of the steering wheel.
When on,
Ais green if LKA is
available to assist and provide LDW
alerts. It may assist by gently turning
the steering wheel and display
A
as amber if the vehicle approaches a
detected lane marking without
using a turn signal in that direction.
It may also provide an LDW alert by
flashing
Aamber as the lane
marking is crossed. Additionally, there
will be three beeps, or the driver seat
will pulse three times, on the right or
left, depending on the lane departure
direction.
The LKA system does not
continuously steer the vehicle. If LKA
does not detect active driver steering,
an alert and chime may be provided.
Steer the vehicle to dismiss.
When the System Does Not
Seem to Work Properly
The system performance may be
affected by:
. Close vehicles ahead.
. Sudden lighting changes, such as
when driving through tunnels.
. Banked roads.
. Roads with poor lane markings,
such as two-lane roads.
If the LKA system is not functioning
properly when lane markings are
clearly visible, cleaning the windshield
may help.
LKA assistance and/or LDW alerts
may occur due to tar marks, shadows,
cracks in the road, temporary or
construction lane markings, or other
road imperfections. This is normal
system operation; the vehicle does not
need service. Turn LKA off if these
conditions continue.
Page 227 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
226 DRIVING AND OPERATING
Fuel
Use the recommended fuel for proper
vehicle maintenance.
For the 2.0L L4 turbo engine (LTG),
use unleaded petrol with a posted
octane rating of 95 RON or higher.
Unleaded petrol rated at 91 RON can
be used, but acceleration and fuel
economy will be reduced, and an
audible knocking noise may be heard.
If this occurs, use petrol rated at 95
RON as soon as possible, otherwise
the engine could be damaged. If heavy
knocking is heard when using
unleaded petrol rated at 95 RON, the
engine needs service.
For the 2.5L L4 engine (LCV) and the
3.6L V6 engine (LGX), use unleaded
petrol with a posted octane rating of
91 RON or higher, otherwise an
audible knocking noise may be heard.
If heavy knocking is heard when using
gasoline rated at 91 RON or higher,
the engine needs service.
For the 3.6L V6 twin turbo engine
(LF4), use unleaded petrol with a
posted octane rating of 95 RON or
higher. If the octane is less than 95RON, the engine could be damaged
and repairs would not be covered by
the vehicle warranty. If heavy
knocking is heard when using petrol
rated at 95 RON octane, the engine
needs service.
Caution
Do not use fuels with any of the
following conditions; doing so may
damage the vehicle and void its
warranty:
. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control system
and spark plugs.
(Continued)
Caution (Continued)
.Fuel with a posted octane
rating of less than the
recommended fuel. Using this
fuel will lower fuel economy
and performance, and may
decrease the life of the
emissions catalyst.
Fuel Additives
Gasoline should contain detergent
additives that help prevent engine and
fuel system deposits from forming.
Clean fuel injectors and intake valves
will allow the emission control system
to work properly. Some gasoline does
not contain sufficient quantities of
additives to keep fuel injectors and
intake valves clean. To make up for
this lack of detergency, consult your
dealer for the GM approved additive
treatment. Add this additive to the
fuel tank at every engine oil change or
every 15 000 km (9,000 mi), whichever
occurs first.
Page 228 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
DRIVING AND OPERATING 227
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.. To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Do not use a cell phone while
refueling.
. Do not re-enter the vehicle
while pumping fuel.
. Keep children away from the
fuel pump and never let
children pump fuel.
(Continued)
Warning (Continued)
.Fuel can spray out if the fuel
cap is opened too quickly.
This spray can happen if the
tank is nearly full, and is
more likely in hot weather.
Open the fuel cap slowly and
wait for any hiss noise to
stop, then unscrew the cap all
the way.
To open the fuel door, push and
release the rearward center edge of
the door.
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:
. Vehicle performance issues,
including engine stalling and
damage to the fuel system.
. Fuel spills.
. Potential fuel fires.
Be careful not to spill fuel. Wait a few
seconds after you have finished
pumping before removing the nozzle.
Clean fuel from painted surfaces as
soon as possible. See Exterior
Care 0298.
{Warning
If a fire starts while you are
refueling, do not remove the nozzle.
Shut off the flow of fuel by shutting
off the pump or by notifying the
station attendant. Leave the area
immediately.
Page 229 of 335

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.
Page 230 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
DRIVING AND OPERATING 229
Filling the Tank with a Portable Gas
Can (Coupe)
If a coupe vehicle runs out of fuel and
must be filled from a portable gas can:
1. Locate the capless funneladapter from under the carpet in
the trunk.
2. Insert and latch the funnel into the capless fuel system.
{Warning
Attempting to refuel without using
the funnel adapter may cause fuel
spillage and damage the capless
fuel system. This could cause a fire
and you or others could be badly
burned and the vehicle could be
damaged. 3. Remove and clean the funnel
adapter and return it to the
storage location.
Filling a Portable Fuel
Container
{Warning
Filling a portable fuel container
while it is in the vehicle can cause
fuel vapors that can ignite either by
static electricity or other means.
You or others could be badly
burned and the vehicle could be
damaged. Always:
. Use approved fuel containers.
. Remove the container from
the vehicle, trunk, or pickup
bed before filling.
. Place the container on the
ground.
. Place the nozzle inside the fill
opening of the container
before dispensing fuel, and
(Continued)
Warning (Continued)
keep it in contact with the fill
opening until filling is
complete.
. Fill the container no more
than 95% full to allow for
expansion.
. Do not smoke, light matches,
or use lighters while
pumping fuel.
. Avoid using cell phones or
other electronic devices.
Page 231 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
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.
Page 232 of 335

Cadillac ATS/ATS-V Owner Manual (GMNA-Localizing-MidEast-10287885) -
2017 - crc - 6/16/16
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