2017 CADILLAC XTS air condition

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
DRIVING AND OPERATING 191
Automatic Level Control
The automatic level control rear
suspension is available on some
vehicles.
This type of level control is fully
automatic and will provide a better
leveled riding position as well as
better handling under a variety of
passenger and loading conditions. An
air compressor connected to the rear
air springs will raise or lower the rear
of the vehicle to maintain proper
vehicle height. The system is activated
when the engine is running and will
automatically adjust vehicle height
thereafter. The system may exhaust
(lower vehicle height) for up to
10 minutes after the engine has been
turned off. You may hear the air
compressor operating when the height
is being adjusted; this is normal.If the compressor runs often for
longer than one minute within the
same trip and the vehicle remains low
in the rear, see your dealer for service.
If the vehicle is not used for several
weeks, the rear of the vehicle may
look low. When the engine is started,
the vehicle will return to the proper
height.
If a weight-distributing hitch is being
used, it is recommended to allow the
air springs to inflate, thereby leveling
the vehicle prior to adjusting the
hitch.
Cruise Control
{Warning
Cruise control can be dangerous
where you cannot drive safely at a
steady speed. Do not use cruise
control on winding roads or in
heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes in tire traction can cause
excessive wheel slip, and you could
lose control. Do not use cruise
control on slippery roads.
With cruise control, a speed of about
40 km/h (25 mph) or more can be
maintained without keeping your foot
on the accelerator. Cruise control does
not work at speeds below about
40 km/h (25 mph).

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
DRIVING AND OPERATING 201
Cleaning the Sensing System
The camera sensor on the back of the
rearview mirror and the radar sensors
on the front of the vehicle can become
blocked by snow, ice, dirt, or mud.
These areas need to be cleaned for
ACC to operate properly.
For cleaning instructions, see
“Washing the Vehicle”under Exterior
Care 0278.
System operation may also be limited
under snow, heavy rain or road spray
conditions.Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes or
reduce crash damage while driving,
backing, and parking. Read this entire
section before using these systems.
{Warning
Do not rely on the Driver
Assistance Systems. These systems
do not replace the need for paying
attention and driving safely. You
may not hear or feel alerts or
warnings provided by these
systems. Failure to use proper care
when driving may result in injury,
death, or vehicle damage. See
Defensive Driving 0168.
Under many conditions, these
systems will not: . Detect children, pedestrians,
bicyclists, or animals.
(Continued)
Warning (Continued)
.Detect vehicles or objects
outside the area monitored by
the system.
. Work at all driving speeds.
. Warn you or provide you with
enough time to avoid a crash.
. Work under poor visibility or
bad weather conditions.
. Work if the detection sensor
is not cleaned or is covered
by ice, snow, mud, or dirt.
. Work if the detection sensor
is covered up, such as with a
sticker, magnet, or metal
plate.
. Work if the area surrounding
the detection sensor is
damaged or not properly
repaired.
Complete attention is always
required while driving, and you
should be ready to take action and
apply the brakes and/or steer the
vehicle to avoid crashes.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
DRIVING AND OPERATING 207
Collision Preparation”portion of
“Collision/Detection Systems” under
Vehicle Personalization 0144.
Detecting the Vehicle Ahead
FCA warnings will not occur unless
the FCA system detects a vehicle
ahead. When a vehicle is detected, the
vehicle ahead indicator will display
green. Vehicles may not be detected
on curves, highway exit ramps,
or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by
pedestrians or other objects. FCA will
not detect another vehicle ahead until
it is completely in the driving lane.
{Warning
FCA does not provide a warning to
help avoid a crash, unless it detects
a vehicle. FCA may not detect a
(Continued)
Warning (Continued)
vehicle ahead if the FCA sensor is
blocked by dirt, snow, or ice, or if
the windshield is damaged. It may
also not detect a vehicle on winding
or hilly roads, or in conditions that
can limit visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in
proper condition. Keep the
windshield, headlamps, and FCA
sensors clean and in good repair.
Collision Alert
With Head-Up Display
Without Head-Up Display
When your vehicle approaches
another detected vehicle too rapidly,
the red FCA display will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front, or both sides of the Safety
Alert Seat will pulse five times. When
this Collision Alert occurs, the brake
system may prepare for driver braking
to occur more rapidly which can cause
a brief, mild deceleration. Continue to
apply the brake pedal as needed.
Cruise control may be disengaged
when the Collision Alert occurs.
Tailgating Alert

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
212 DRIVING AND OPERATING
Warning (Continued)
or death could occur. Always keep
the windshield, headlamps, and
camera sensors clean and in good
repair. Do not use LDW in bad
weather conditions.
How the System Works
The LDW camera sensor is on the
windshield ahead of the rearview
mirror.
To turn LDW on and off, press
@on
the center stack to the left of the
infotainment screen. The control
indicator will light when LDW is on.
When LDW is on,@is green if LDW
is available to warn of a lane
departure. If the vehicle crosses a
detected lane marking without using the turn signal in that direction,
@
changes to amber and flashes.
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.
When the System Does Not
Seem to Work Properly
The system may not detect lanes as
well when there are:
.
Close vehicles ahead.
. Sudden lighting changes, such as
when driving through tunnels.
. Banked roads.
If the LDW system is not functioning
properly when lane markings are
clearly visible, cleaning the windshield
may help.
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
LDW off if these conditions continue.
Fuel
Use the recommended fuel for proper
vehicle maintenance.
For the LFX 3.6L V6 engine, 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 LF3 3.6L V6 twin turbo engine,
use unleaded petrol with a posted
octane rating of 95 RON or higher.
If the octane is less than 95 RON, 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.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
VEHICLE CARE 237
2. Fill the CAC bottle with theproper mixture to the COLD FILL
mark pointed to on the front of
the CAC bottle.
3. Replace the pressure cap tightly.
Engine Overheating
The vehicle has an engine coolant
temperature gauge and an engine
temperature light to warn of engine
overheating.
There are also engine hot messages
that may be displayed in the Driver
Information Center (DIC). See Engine
Cooling System Messages 0136.
If the decision is made not to lift the
hood when one of these warnings
appears, but get service help
right away.
If the decision is made to lift the
hood, make sure the vehicle is parked
on a level surface.
Then check to see if the engine
cooling fans are running. If the engine
is overheating, the fans should be
running. If they are not, do not
continue to run the engine and have
the vehicle serviced.
Caution
Running the engine without coolant
may cause damage or a fire. Vehicle
damage would not be covered by
the vehicle warranty. See Overheated
Engine Protection Operating Mode
0 238 for information on driving to
a safe place in an emergency.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam from an overheated engine
can burn you badly, even if you just
open the hood. Stay away from the
engine if you see or hear steam
coming from it. Just turn it off and
get everyone away from the vehicle
until it cools down. Wait until there
is no sign of steam or coolant
before you open the hood.
(Continued)
Warning (Continued)
If you keep driving when the engine
is overheated, the liquids in it can
catch fire. You or others could be
badly burned. Stop the engine if it
overheats, and get out of the
vehicle until the engine is cool.
If No Steam Is Coming from the
Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen or
heard, the problem may not be too
serious. Sometimes the engine can get
a little too hot when the vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer.
If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
238 VEHICLE CARE
2. Turn the heater on to the highesttemperature and to the highest
fan speed. Open the windows as
necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer displays,
the vehicle can be driven. Continue to
drive the vehicle slow for about
10 minutes. Keep a safe vehicle
distance from the car in front of you.
If the warning does not come back on,
continue to drive normally and have
the cooling system checked for proper
fill and function.
If the warning continues, pull over,
stop, and park the vehicle right away.
If there is no sign of steam, idle the
engine for three minutes while parked.
If the warning is still displayed, turn
off the engine until it cools down.
Also, see “Overheated Engine
Protection Operating Mode ”next in
this section.Overheated Engine
Protection Operating Mode
This emergency operating mode
allows the vehicle to be driven to a
safe place in an emergency situation.
If an overheated engine condition
exists, an overheat protection mode,
which alternates firing groups of
cylinders, helps prevent engine
damage. In this mode, there is
significant loss in power and engine
performance.
The engine coolant temperature
warning light comes on in the
instrument cluster, to indicate the
vehicle has entered overheated engine
protection operating mode. The
temperature gauge also indicates an
overheat condition exists. Driving
extended distances and/or towing a
trailer in the overheat protection
mode should be avoided.
Power Steering Fluid
The power steering fluid reservoir is
under the engine cover on the
passenger side toward the rear of the
engine compartment. See Engine
Compartment Overview 0224.
When to Check Power Steering
Fluid
It is not necessary to regularly check
power steering fluid unless you
suspect there is a leak in the system
or an unusual noise is heard. A fluid
loss in this system could indicate a
problem. Have the system inspected
and repaired.
How to Check Power Steering
Fluid
Check the level when the engine
is cool.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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240 VEHICLE CARE
Caution (Continued)
to freeze and damage the
washer fluid tank and other
parts of the washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank only
three-quarters full when it is
very cold. This allows for
fluid expansion if freezing
occurs, which could damage
the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can be
heard all the time when the vehicle is
moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will not
work well. That could lead to a
crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the proper sequence to torque
specifications. See
Capacities and
Specifications 0299.
Brake pads should be replaced as
complete sets.
Brake Pedal Travel
See your dealer if the brake pedal does
not return to normal height, or if
there is a rapid increase in pedal
travel. This could be a sign that brake
service may be required.
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement parts.
If this is not done, the brakes may not
work properly. The braking
performance expected can change in
many other ways if the wrong
replacement brake parts are installed
or if parts are improperly installed.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
VEHICLE CARE 255
Warning (Continued)
.Replace any tires that have
been damaged by impacts
with potholes, curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an authorized
tire service center should
repair, replace, dismount,
and mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.
See Tire Pressure for High-Speed
Operation 0257 for inflation
pressure adjustment for
high-speed driving.
All-Season Tires
This vehicle may come with all-season
tires. These tires are designed to
provide good overall performance on
most road surfaces and weather
conditions. Original equipment tires
designed to GM's specific tire
performance criteria have a TPC
specification code molded onto the
sidewall. Original equipment
all-season tires can be identified by
the last two characters of this TPC
code, which will be “MS.”
Consider installing winter tires on the
vehicle if frequent driving on snow or
ice-covered roads is expected.
All-season tires provide adequate
performance for most winter driving
conditions, but they may not offer the
same level of traction or performance
as winter tires on snow or ice-covered
roads. See Winter Tires 0255.
Winter Tires
This vehicle was not originally
equipped with winter tires. Winter
tires are designed for increased
traction on snow and ice-covered
roads. Consider installing winter tires on the vehicle if frequent driving on
ice or snow covered roads is expected.
See your dealer for details regarding
winter tire availability and proper tire
selection. Also, see
Buying New
Tires 0264.
With winter tires, there may be
decreased dry road traction, increased
road noise, and shorter tread life.
After changing to winter tires, be alert
for changes in vehicle handling and
braking.
If using winter tires:
. Use tires of the same brand and
tread type on all four wheel
positions.
. Use only radial ply tires of the
same size, load range, and speed
rating as the original equipment
tires.
Winter tires with the same speed
rating as the original equipment tires
may not be available for H, V, W, Y,
and ZR speed rated tires. If winter
tires with a lower speed rating are
chosen, never exceed the tire's
maximum speed capability.