2018 CADILLAC XT5 transmission

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349110) - 2018 - CRC - 9/28/17
DRIVING AND OPERATING 243
4. Reapply the brake pedal. Thenapply the parking brake and shift
into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal while you:
.Start the engine.
. Shift into a gear.
. Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more often
when pulling a trailer. See the
Maintenance Schedule 0330. Things
that are especially important in trailer
operation are automatic transmission
fluid, engine oil, axle lubricant, belts, cooling system, and brake system.
Inspect these before and during
the trip.
Check periodically to see that all hitch
nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See
Engine Overheating
0 261.
Trailer Towing
Before pulling a trailer, there are three
important considerations that have to
do with weight:
.
The weight of the trailer.
. The weight of the trailer tongue.
. The total weight on the vehicle's
tires.
Weight of the Trailer
How heavy can a trailer safely be?
It depends on how the rig is used. For
example, speed, altitude, road grades,
outside temperature and how much
the vehicle is used to pull a trailer are
all important. It can depend on any
special equipment on the vehicle, and
the amount of tongue weight the
vehicle can carry. See “Weight of the
Trailer Tongue ”later in this section.
Maximum trailer weight is calculated
assuming the tow vehicle has the
driver, a front seat passenger, and all
the required towing equipment. Cargo
in the tow vehicle must be subtracted
from the maximum trailer weight.
Use the following chart to determine
how much the vehicle can weigh,
based upon the vehicle model and
options.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 249
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 250
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 250
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 251
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 251
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 251
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 253
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 254
Engine Oil Life System . . . . . . . . . . . 256
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Engine Air Cleaner/Filter . . . . . . . . . 257
Cooling System . . . . . . . . . . . . . . . . . . . 258
Engine Overheating . . . . . . . . . . . . . . 261
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 263
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 264
Battery - North America . . . . . . . . . 265
All-Wheel Drive . . . . . . . . . . . . . . . . . . 266 Starter Switch Check . . . . . . . . . . . . . 266
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 266
Wiper Blade Replacement . . . . . . . 267
Windshield Replacement . . . . . . . . 268
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 268
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 269
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 270
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 270
LED Lighting . . . . . . . . . . . . . . . . . . . . . 270
Headlamps and Front Turn Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 271
Electrical System
Electrical System Overload . . . . . . 271
Fuses and Circuit Breakers . . . . . . 272
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Instrument Panel Fuse Block . . . . 275
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
All-Season Tires . . . . . . . . . . . . . . . . . . 280
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 280
Summer Tires . . . . . . . . . . . . . . . . . . . . 281 Tire Sidewall Labeling . . . . . . . . . . . 281
Tire Designations . . . . . . . . . . . . . . . . . 283
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 284
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 286
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . . . . . . 288
Tire Pressure Monitor System . . . 288
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 289
Tire Inspection . . . . . . . . . . . . . . . . . . . 293
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 293
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Buying New Tires . . . . . . . . . . . . . . . . 295
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Uniform Tire Quality Grading . . . 297
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Wheel Replacement . . . . . . . . . . . . . . 298
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 299
If a Tire Goes Flat . . . . . . . . . . . . . . . . 300
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 301
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 307
Tire Changing . . . . . . . . . . . . . . . . . . . . . 308
Compact Spare Tire . . . . . . . . . . . . . . 313

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 257
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) 0141. When
remaining oil life is low, the
CHANGE ENGINE OIL SOON
message will appear on the
display.
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. Display REMAINING OIL LIFE on the DIC. See Driver Information
Center (DIC) 0141.
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
A transmission fluid leak is the only
reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and
have it repaired as soon as possible.
See your dealer to have the fluid and
filter changed at the intervals listed in
the Maintenance Schedule 0330.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the passenger
side of the vehicle. See Engine
Compartment Overview 0253.
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/filter,
see Maintenance Schedule 0330.
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

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 267
Park on a fairly steep hill, with the
vehicle facing downhill. Keeping your
foot on the regular brake, set the
parking brake.
.To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.
. To check the P (Park) mechanism's
holding ability: With the engine
running, shift to P (Park). Then
release the parking brake followed
by the regular brake.
Contact your dealer if service is
required.Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear or cracking.
It is a good idea to clean or replace
the wiper blade assembly on a regular
basis or when worn. For proper
windshield wiper blade length and
type, see Maintenance Replacement
Parts 0338.
Caution
Allowing the wiper arm to touch
the windshield when no wiper blade
is installed could damage the
windshield. Any damage that occurs
would not be covered by the vehicle
warranty. Do not allow the wiper
arm to touch the windshield.
Front Wiper Blade Replacement
To replace the wiper blade assembly:
1. Pull the windshield wiper assembly away from the
windshield.
2. Lift up on the latch in the middleof the wiper blade where the
wiper arm attaches.
3. With the latch open, pull the wiper blade down toward the
windshield far enough to release
it from the J-hooked end of the
wiper arm.
4. Remove the wiper blade.
5. Reverse Steps 1–3 for wiper blade replacement.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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274 VEHICLE CARE
FusesUsage
F23 Parking/Trailer lamps
F24 Right trailer stop lamp/Turn
signal lamp
F25 Steering column lock
F26 –
F27 Left trailer stop lamp/ Turn signal lamp
F28 –
F29 –
F30 Washer pump
F31 Headlamp low-beam right
F32 Headlamp low-beam left
F33 Fog lamps
F34 Horn
F35 –
F36 Headlamp high-beam left
F37 Headlamp high-beam right Fuses
Usage
F38 Automatic headlamp leveling motor
F39 Transmission control module 1
F40 Left rear bus electrical center/Ignition
F41 Instrument cluster
F42 Heating, ventilation, and air conditioning
F43 Head-up display
F44 –
F45 –
F46 –
F47 –
F48 Rear wiper 2
F49 Interior rearview mirror/Trailer
F50 Fuel system control module
F51 Heated steering wheel
F52 Air conditioning clutch Fuses
Usage
F53 Transmission range control module
F54 Coolant pump
F55 –
F56 –
F57 Engine control module/Ignition
F58 Transmission control module/Ignition
F59 Engine control module battery
F60 Transmission control module 2
F61 O2 sensor 1/ Aeroshutter
F62 Engine control module–odd
F63 O2 sensor 2
F64 Engine control module–even
F65 Engine control module powertrain 1

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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284 VEHICLE CARE
(1) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter P as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire and
Rim Association.
(2) Tire Width
:The three-digit
number indicates the tire section
width in millimeters from sidewall
to sidewall.
(3) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size aspect
ratio is 60, as shown in item 3 of
the illustration, it would mean
that the tire's sidewall is
60 percent as high as it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire. The
letter R means radial ply
construction; the letter D means diagonal or bias ply construction;
and the letter B means belted-bias
ply construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the tire.
The load index represents the load
carrying capacity a tire is certified
to carry. The speed rating is the
maximum speed a tire is certified
to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of air
inside the tire pressing outward
on each square inch of the tire.
Air pressure is expressed in kPa
(kilopascal) or psi (pounds per
square inch).
Accessory Weight
:The combined
weight of optional accessories.
Some examples of optional accessories are automatic
transmission, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of
a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in
which the plies are laid at
alternate angles less than
90 degrees to the centerline of the
tread.
Cold Tire Pressure
:The amount
of air pressure in a tire, measured
in kPa (kilopascal) or psi (pounds
per square inch) before a tire has
built up heat from driving. See
Tire Pressure 0286.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349110) - 2018 - CRC - 9/28/17
VEHICLE CARE 301
{Warning
Changing a tire can be dangerous.
The vehicle can slip off the jack and
roll over or fall causing injury or
death. Find a level place to change
the tire. To help prevent the vehicle
from moving:1. Set the parking brake firmly.
2. Put an automatictransmission in P (Park) or a
manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine and do not restart while the vehicle
is raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of
the tire at the opposite corner
of the tire being changed. This vehicle may come with a jack
and spare tire or a tire sealant and
compressor kit. To use the jacking
equipment to change a spare tire
safely, follow the instructions below.
Then see
Tire Changing 0308. To use
the tire sealant and compressor kit,
see Tire Sealant and Compressor Kit
0 301.
When the vehicle has a flat tire (2),
use the following example as a guide
to assist you in the placement of
wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to repair or change a tire.
Tire Sealant and
Compressor Kit
{Warning
Idling a vehicle in an enclosed area
with poor ventilation is dangerous.
Engine exhaust may enter the
vehicle. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death. Never run the engine in an
enclosed area that has no fresh air
ventilation. For more information,
see Engine Exhaust 0195.
{Warning
Overinflating a tire could cause the
tire to rupture and you or others
could be injured. Be sure to read
and follow the tire sealant and
compressor kit instructions and
(Continued)

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 315
1. Discharged Remote BatteryPositive Terminal
2. Discharged Remote Battery Negative Ground Terminal
3. Good Battery Negative Terminal
4. Good Battery Positive Terminal
The jump start remote positive
terminal (1) and the remote negative
ground terminal (2) for the discharged
battery are on the driver side of the
vehicle. The jump start negative terminal (3)
and positive terminal (4) are on the
battery of the vehicle providing the
jump start.
The positive jump start connection for
the discharged battery is under a
cover. Remove the cover to expose the
terminal.
1. Check the other vehicle. It must have a 12-volt battery with a
negative ground system.
Caution
If the other vehicle does not have a
12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so that they are not touching.
3. Set the parking brake firmly and put the transmission in P (Park).
See Shifting Into Park 0193.
Caution
If any accessories are left on or
plugged in during the jump starting
procedure, they could be damaged.
The repairs would not be covered
by the vehicle warranty. Whenever
possible, turn off or unplug all
accessories on either vehicle when
jump starting.
4. Turn the ignition off. Turn off all lights and accessories in both
vehicles, except the hazard
warning flashers if needed.
{Warning
An electric fan can start up even
when the engine is not running and
can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.