power steering CADILLAC XTS 2017 1.G User Guide
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Page 180 of 314

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
DRIVING AND OPERATING 179
Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). To restart the engine
when the vehicle is already moving,
use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If the steering wheel is turned until
it reaches the end of its travel, and
is held in that position while
starting the vehicle, damage may
occur to the hydraulic power
steering system and there may be
loss of power steering assist.
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 Equipment0220.
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. See Key
and Lock Messages 0137.
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 the ENGINE
START/STOP button, 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
Page 185 of 314

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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184 DRIVING AND OPERATING
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift into
a drive gear while the engine is
running at high speed.
Caution
Shifting out of P (Park) or
N (Neutral) with the engine running
at high speed may damage the
transmission. The repairs would not
be covered by the vehicle warranty.
Be sure the engine is not running at
high speed when shifting the
vehicle.D :
This position is for normal driving.
It provides the best fuel economy.
If more power is needed for passing,
and the vehicle is:
. Going less than 56 km/h (35 mph),
push the accelerator pedal about
halfway down.
. Going about 56 km/h (35 mph) or
more, push the accelerator all the
way down.
Caution
If the vehicle does not shift gears,
the transmission could be damaged.
Have the vehicle serviced
right away.
M : This position allows the driver to
select the range of gears appropriate
for current driving conditions.
In M (Manual Mode) the transmission
will shift as an automatic until the
Tap Shift controls are used. Tap Shift
activates driver manual gear selection.
See Manual Mode 0184.
Manual Mode
Tap Shift
Tap Shift allows the driver to
manually control the automatic
transmission. To use Tap Shift, the
shift lever must be in M (Manual
Mode). Vehicles with this feature have
indicators on the steering wheel. The
controls are on the back of the
steering wheel. Tap the left control to
downshift, and the right control to
upshift. A Driver Information Center
(DIC) message indicates the gear the
vehicle is in.
Page 187 of 314

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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186 DRIVING AND OPERATING
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 EPB switch is on the left side of
the instrument panel. The EPB can
always be activated, even if the
ignition is off. To prevent draining the
battery, avoid repeated cycles of the
EPB when the engine is not running.
The system has a red parking brake
status light and an amber parking
brake warning light. SeeElectric
Parking Brake Light 0122 and Service
Electric Parking Brake Light 0123.
There are also parking brake-related
Driver Information Center (DIC)
messages. See Brake System Messages
0 135. 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.
2. Lift up the EPB switch momentarily.
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Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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VEHICLE CARE 221
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 222
Accessories andModifications . . . . . . . . . . . . . . . . . . . 222
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 223
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 224
Engine Cover . . . . . . . . . . . . . . . . . . . . . . 227
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 228
Engine Oil Life System . . . . . . . . . . . 230
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Engine Air Cleaner/Filter . . . . . . . . . 231
Cooling System . . . . . . . . . . . . . . . . . . . 233
Engine Coolant . . . . . . . . . . . . . . . . . . . 234
Engine Overheating . . . . . . . . . . . . . . 237
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . . . . . 238
Power Steering Fluid . . . . . . . . . . . . . 238
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 239
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 241
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
All-Wheel Drive . . . . . . . . . . . . . . . . . . 242 Starter Switch Check . . . . . . . . . . . . . 243
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 243
Wiper Blade Replacement . . . . . . . 244
Windshield Replacement . . . . . . . . 244Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 245
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 245
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 245
LED Lighting . . . . . . . . . . . . . . . . . . . . . 245
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 245
License Plate Lamp . . . . . . . . . . . . . . 246
Replacement Bulbs . . . . . . . . . . . . . . . 247
Electrical System
Electrical System Overload . . . . . . 247
Fuses and Circuit Breakers . . . . . . 248
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Instrument Panel Fuse Block . . . . 251
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 All-Season Tires . . . . . . . . . . . . . . . . . . 255
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 255
Low-Profile Tires . . . . . . . . . . . . . . . . . 256
Summer Tires . . . . . . . . . . . . . . . . . . . . 256
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 256
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . 257
Tire Pressure Monitor System . . . 258
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 259
Tire Inspection . . . . . . . . . . . . . . . . . . . 262
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 262
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Buying New Tires . . . . . . . . . . . . . . . . 264
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Wheel Replacement . . . . . . . . . . . . . . 266
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 266
If a Tire Goes Flat . . . . . . . . . . . . . . . . 267
Tire Changing . . . . . . . . . . . . . . . . . . . . . 268
Compact Spare Tire . . . . . . . . . . . . . . 272
Jump Starting
Jump Starting . . . . . . . . . . . . . . . . . . . . . 273
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 276
Recreational Vehicle Towing . . . . 276
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Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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VEHICLE CARE 225
1.Engine Air Cleaner/Filter 0231.
2. Power Steering Fluid Reservoir (Under Engine Cover). See Power
Steering Fluid 0238.
3. Engine Oil Fill Cap. See Engine
Oil 0228.
4. Engine Oil Dipstick (Out of View). See Engine Oil0228.
5. Engine Cover 0227.
6. Engine Cooling Fans (Out of View). See Cooling System 0233.
7. Brake Fluid Reservoir. See Brakes 0240.
8. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0234.
9. Battery 0242 (Battery Cover not
Shown).
10. Remote Positive (+) Terminal (Battery Cover not Shown). See
Jump Starting 0273.
11. Engine Compartment Fuse
Block 0248.
12. Remote Negative (−) Terminal (Out of View). See Jump
Starting 0273. 13. Windshield Washer Fluid
Reservoir. See Washer
Fluid 0239.
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Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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VEHICLE CARE 227
1.Engine Air Cleaner/Filter 0231.
2. Power Steering Fluid Reservoir (Under Engine Cover). See Power
Steering Fluid 0238.
3. Engine Oil Fill Cap. See Engine
Oil 0228.
4. Engine Oil Dipstick. See Engine
Oil 0228.
5. Engine Cover 0227.
6. Engine Cooling Fans (Out of View). See Cooling System 0233.
7. Charged Air Coolant Reservoir and Pressure Cap. See Engine
Coolant 0234.
8. Brake Fluid Reservoir. See Brakes 0240.
9. Engine Coolant Surge Tank and Pressure Cap. See Engine
Coolant 0234.
10. Battery 0242 (Battery Cover not
Shown).
11. Remote Positive (+) Terminal (Battery Cover not Shown). See
Jump Starting 0273.
12. Engine Compartment Fuse
Block 0248. 13. Windshield Washer Fluid
Reservoir. See Washer
Fluid 0239.
14. Remote Negative (−) Terminal (Out of View). See Jump
Starting 0273.
Engine Cover
3.6L V6 Engine
1. Engine Oil Fill Cap
2. Engine Cover Bolt
3. Engine Cover
To remove:
1. Remove the oil fill cap (1).
2. Remove the engine cover bolt (2). 3. Raise the engine cover (3) to
release it from the retainers.
4. Lift and remove the engine cover.
5. Reverse Steps 1–4 to reinstall the engine cover.
3.6L V6 Engine Twin Turbo Engine
1. Engine Oil Fill Cap
2. Engine Cover
3. Engine Cover Bolt
To remove:
1. Remove the oil fill cap (1).
2. Remove the engine cover bolt (3).
3. Raise the engine cover (2) to release it from the retainers.
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Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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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.
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Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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VEHICLE CARE 239
To check the power steering fluid:1. Remove the engine cover. Refer toEngine Cover 0227.
2. Wipe the cap and the top of the reservoir clean.
3. Turn the cap counterclockwise and pull it straight up.
4. Wipe the dipstick with a clean rag.
5. Replace the cap and completely tighten it.
6. Remove the cap again and look at the fluid level on the dipstick.
The fluid level should be
between MIN and MAX on the
dipstick.
What to Use
To determine what kind of fluid to
use, see Recommended Fluids and
Lubricants 0295. Always use the
proper fluid.
Washer Fluid
What to Use
When adding windshield washer fluid
to the vehicle, be sure to read the
manufacturer instructions before use.
If you will be operating your vehicle in
an area where the temperature may
fall below freezing, use a fluid that
has sufficient protection against
freezing.
Adding Washer Fluid
The appropriate message will appear
on the Driver Information Center (DIC)
when the fluid level is low. See Washer
Fluid Messages 0143.
Open the cap with the washer symbol
on it. Add washer fluid until the tank
is full. See Engine Compartment
Overview 0224 for reservoir location.
Caution
.
Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
(Continued)
Page 250 of 314

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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VEHICLE CARE 249
The vehicle may not be equipped with
all of the fuses, relays, and features
shown.Fuses Usage
1 Transmission control module
2 Engine control module
3 A/C clutch
4 – Fuses Usage
5 Engine control module/Run/Crank
6 Wiper
8 Ignition coils –even
(V6 engine)
9 Ignition coils –odd
(V6 engine) Fuses Usage
10 Engine control module/Switched
battery
11 Post-catalytic converter O2 sensor
heater (V6 engine)/
Mass air flow sensor/
Flex fuel sensor
12 Starter
13 Transmission control module/Chassis
control module/Run/
Crank
14 Right rear heated seat
15 Left rear heated seat
16 –
17 Body Run/Crank
18 Autonet Run/Crank
20 –
21 Rear power windows
22 Sunroof
23 Variable effort steering
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Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
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250 VEHICLE CARE
FusesUsage
24 Front power windows
25 Retained accessory power
26 ABS pump
27 Electric parking brake
28 Rear window defogger
29 Passive entry/Passive start
30 AWD module
31 Left front heated seat
32 Body control module 6
33 Right front heated seat
34 ABS valves
35 Amplifier
37 Right high-beam headlamp
38 Left high-beam headlamp
41 Brake vacuum assist pump Fuses
Usage
42 Cooling fan K2
44 Headlamp washer
45 Cooling fan K1
46 Cooling fan relay
47 Pre-catalytic converter O2 sensor
heater (V6 engine)/
Canister purge
solenoid
48 Coolant pump
49 Right HID headlamp
50 Left HID headlamp
51 Horn
52 Run/Crank
53 Interior rearview mirror/Run/Crank/
Rear vision camera
54 Run/Crank/HVAC
55 Exterior rearview mirror/Front window
switches
56 Windshield washer
57 Steering column lock Fuses
Usage
60 Heated mirror
62 Massage memory bolster
64 Adaptive forward lighting module
66 Trunk release
67 Chassis control module
69 Regulated voltage control sensor
70 Vent canister solenoid
71 Memory module
Relays Usage
1 A/C clutch
2 Starter
4 Wiper speed
5 Wiper control
7 Engine control module
8 –
9 Cooling fan