2018 CADILLAC ATS fuel

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
172 DRIVING AND OPERATING
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . . . . . 173
Defensive Driving . . . . . . . . . . . . . . . . 174
Drunk Driving . . . . . . . . . . . . . . . . . . . . 174
Control of a Vehicle . . . . . . . . . . . . . . 174
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Off-Road Recovery . . . . . . . . . . . . . . . . 176
Loss of Control . . . . . . . . . . . . . . . . . . . 176
Driving on Wet Roads . . . . . . . . . . . 176
Hill and Mountain Roads . . . . . . . . 177
Winter Driving . . . . . . . . . . . . . . . . . . . . 178
If the Vehicle Is Stuck . . . . . . . . . . . 179
Vehicle Load Limits . . . . . . . . . . . . . . 179
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 183
Ignition Positions . . . . . . . . . . . . . . . . 184
Starting the Engine . . . . . . . . . . . . . . 185
Engine Heater . . . . . . . . . . . . . . . . . . . . 186
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . . . . . 188
Shifting Into Park . . . . . . . . . . . . . . . . 188
Shifting out of Park . . . . . . . . . . . . . . 189 Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . . . . . 189
Extended Parking . . . . . . . . . . . . . . . . . 189
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 190
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Automatic Transmission
Automatic Transmission . . . . . . . . . 191
Manual Mode . . . . . . . . . . . . . . . . . . . . . 193
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 193
Brakes
Antilock Brake System (ABS) . . . . 194
Electric Parking Brake . . . . . . . . . . . . 194
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 196
Hill Start Assist (HSA) . . . . . . . . . . . 196
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 196
Magnetic Ride Control . . . . . . . . . . . 198
Limited-Slip Rear Axle . . . . . . . . . . . 198
Automatic Level Control . . . . . . . . . 199
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 199
Adaptive Cruise Control . . . . . . . . . 202
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 209
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . 211
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . . . . 219
Side Blind Zone Alert (SBZA) . . . . 221
Lane Change Alert (LCA) . . . . . . . . 221
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . . 223
Lane Keep Assist (LKA) . . . . . . . . . . 224
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 226
Recommended Fuel (LFX 3.6L V6 Engine) . . . . . . . . . . . . . . . . . . . . . . 226
Recommended Fuel (LF3 3.6L Twin Turbo V6 Engine) . . . . . . . . 226
Prohibited Fuels . . . . . . . . . . . . . . . . . . 227
Fuels in Foreign Countries . . . . . . . 227
Fuel Additives . . . . . . . . . . . . . . . . . . . . 227
Filling the Tank . . . . . . . . . . . . . . . . . . 227
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . . . . . . 229
Trailer Towing
General Towing Information . . . . 230

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
DRIVING AND OPERATING 179
Warning (Continued)
fan speed to the highest
setting. See“Climate Control
Systems.”
For more information about CO, see
Engine Exhaust 0190.
To save fuel, run the engine for short
periods to warm the vehicle and then
shut the engine off and partially close
the window. Moving about to keep
warm also helps.
If it takes time for help to arrive,
when running 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/
Electronic Stability Control 0196.
{Warning
If the vehicle's tires spin at high
speed, they can explode, and you or
others could be injured. The vehicle
can overheat, causing an engine
compartment fire or other damage.
Spin the wheels as little as possible
and avoid going above 56 km/h
(35 mph).
Rocking the Vehicle to Get it Out
Turn the steering wheel left and right
to clear the area around the front
wheels. Turn off any traction system.
Shift back and forth between
R (Reverse) and a low forward gear,
spinning the wheels as little as
possible. To prevent transmission
wear, wait until the wheels stop
spinning before shifting gears. Release
the accelerator pedal while shifting,
and press lightly on the accelerator pedal when the transmission is in
gear. Slowly spinning the wheels in
the forward and reverse directions
causes a rocking motion that could
free the vehicle. If that does not get
the vehicle out after a few tries, it
might need to be towed out. If the
vehicle does need to be towed out, see
Towing the Vehicle
0309.
Vehicle Load Limits
It is very important to know how
much weight the vehicle can carry.
This weight is called the vehicle
capacity weight and includes the
weight of all occupants, cargo, and
all nonfactory-installed options.
Two labels on the vehicle may
show how much weight it may
properly carry: the Tire and
Loading Information label and the
Certification label.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
182 DRIVING AND OPERATING
Example 2
1.Vehicle Capacity Weight
for Example 2 = 453 kg
(1,000 lbs).
2.Subtract Occupant Weight
@ 68 kg (150 lbs) × 5 =
340 kg (750 lbs).
3.Available Cargo Weight =
113 kg (250 lbs).
Example 3
1.Vehicle Capacity Weight
for Example 3 = 453 kg
(1,000 lbs).
2.Subtract Occupant Weight
@ 91 kg (200 lbs) × 5 =
453 kg (1,000 lbs).
3.Available Cargo Weight =
0 kg (0 lbs).
Refer to the vehicle's Tire and
Loading Information label for
specific information about the
vehicle's capacity weight and
seating positions. The combined weight of the driver, passengers,
and cargo should never exceed the
vehicle's capacity weight.
Certification Label
Label Example
A vehicle-specific Certification
label, found on the vehicle center
pillar (B-pillar), may show the
gross weight capacity of the
vehicle, called the Gross Vehicle
Weight Rating (GVWR). The
GVWR includes the weight of the
vehicle, all occupants, fuel, and
cargo. Never exceed the GVWR for

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
186 DRIVING AND OPERATING
Caution
If you add electrical parts or
accessories, you could change the
way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty. See
Add-On Electrical Equipment0235.
Starting Procedure 1. With the Keyless Access system, the RKE transmitter must be in
the vehicle. Press the ENGINE
START/STOP button with the
brake pedal applied. When the
engine begins cranking, let go of
the button.
The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the RKE transmitter is not in
the vehicle, if there is
interference, or if the RKE
transmitter battery is low, the
Driver Information Center (DIC)
will display a message.
Caution
Cranking the engine for long
periods of time, by pressing
ENGINE START/STOP immediately
after cranking has ended, can
overheat and damage the cranking
motor, and drain the battery. Wait
at least 15 seconds between each
try, to let the cranking motor
cool down.
2. If the engine does not start after five to 10 seconds, especially in
very cold weather (below −18 °C
or 0 °F), it could be flooded with
too much gasoline. Try pushing
the accelerator pedal all the way
to the floor and holding it there
as you press ENGINE START/
STOP, for up to a maximum of
15 seconds. Wait at least
15 seconds between each try, to
allow the cranking motor to cool
down. When the engine starts,
let go of the button and the
accelerator. If the vehicle starts
briefly but then stops again, do the same thing. This clears the
extra gasoline from the engine.
Do not race the engine
immediately after starting it.
Operate the engine and
transmission gently until the oil
warms up and lubricates all
moving parts.
Engine Heater
{Warning
Do not plug in the engine block
heater while the vehicle is parked in
a garage or under a carport.
Property damage or personal injury
may result. Always park the vehicle
in a clear open area away from
buildings or structures.
The engine heater, if available, can
help in cold weather conditions at or
below −18 °C (0 °F) for easier starting
and better fuel economy during
engine warm-up. Plug in the engine
heater at least four hours before
starting the vehicle. An internal

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
190 DRIVING AND OPERATING
If the vehicle is left parked and
running with the RKE transmitter
inside the vehicle, it will continue to
run for up to an hour.
The vehicle could turn off sooner if it
is parked on a hill, due to lack of
available fuel.
The timer will reset if the vehicle is
taken out of P (Park) while it is
running.Engine Exhaust
{Warning
Engine exhaust contains carbon
monoxide (CO), which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:. The vehicle idles in areas with
poor ventilation (parking
garages, tunnels, deep snow
that may block underbody
airflow or tail pipes).
. The exhaust smells or sounds
strange or different.
. The exhaust system leaks due
to corrosion or damage.
. The vehicle exhaust system
has been modified, damaged,
or improperly repaired.
(Continued)
Warning (Continued)
.There are holes or openings
in the vehicle body from
damage or aftermarket
modifications that are not
completely sealed.
If unusual fumes are detected or if
it is suspected that exhaust is
coming into the vehicle: . Drive it only with the
windows completely down.
. Have the vehicle repaired
immediately.
Never park the vehicle with the
engine running in an enclosed area
such as a garage or a building that
has no fresh air ventilation.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
226 DRIVING AND OPERATING
unavailable. This message could be
due to a blocked camera. The LKA
system does not need service. Clean
the outside of the windshield behind
the rearview mirror.
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.Fuel
Top Tier Fuel
GM recommends the use of TOP TIER
Detergent Gasoline to keep the engine
clean, reduce engine deposits, and
maintain optimal vehicle performance.
Look for the TOP TIER Logo or see
www.toptiergas.com for a list of TOP
TIER Detergent Gasoline marketers
and applicable countries.
Recommended Fuel (LFX
3.6L V6 Engine)
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol levels greater than 15% by
volume.
Use regular unleaded gasoline meeting
ASTM specification D4814 with a
posted octane rating of 87 or higher.
Do not use gasoline with a posted
octane rating of less than 87, as this
may cause engine knock and will
lower fuel economy.
Recommended Fuel
(LF3 3.6L Twin Turbo
V6 Engine)
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol levels greater than 15% by
volume.
Use premium unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 93.
If unavailable, unleaded gasoline with
a posted octane rating of 91 may be
used, but with reduced performance

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
DRIVING AND OPERATING 227
and fuel economy. If the octane is less
than 91, the engine could be damaged
and the repairs would not be covered
by the vehicle warranty. If heavy
knocking is heard when using gasoline
rated at 93 octane, the engine needs
service.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so may
damage the vehicle and void its
warranty:. For vehicles that are not
FlexFuel, fuel labeled greater
than 15% ethanol by volume,
such as mid-level ethanol
blends (16–50% ethanol), E85,
or FlexFuel.
. Fuel with any amount of
methanol, methylal, ferrocene,
and aniline. These fuels can
(Continued)
Caution (Continued)
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.
. 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.
Fuels in Foreign Countries
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock index
(AKI). For fuel not to use in a foreign
country, see Prohibited Fuels 0227.
Fuel Additives
TOP TIER Detergent Gasoline is highly
recommended for use with your
vehicle. If your country does not have
TOP TIER Detergent Gasoline, add
ACDelco Fuel System Treatment Plus
−Gasoline to the vehicle’s gasoline fuel
tank at every oil change or 15,000 km
(9,000 mi), whichever occurs first. TOP
TIER Detergent Gasoline and ACDelco
Fuel System Treatment Plus−Gasoline
will help keep your vehicle’s engine
fuel deposit free and performing
optimally.
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
(Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
228 DRIVING AND OPERATING
Warning (Continued)
Follow these guidelines:. 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.
. Avoid using electronic devices
while refueling.
. Do not reenter 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
refueling nozzle is inserted
too quickly. This spray can
happen if the tank is nearly
full, and is more likely in hot
weather. Insert the refueling
nozzle slowly and wait for any
hiss noise to stop prior to
beginning to flow fuel.
To open the fuel door, push and
release the rearward center edge of
the door. The 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.
{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
0 312.