Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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278 DRIVING AND OPERATING
departure, or if it detects that you are
accelerating, braking, or actively
steering.
{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.
.Detect lanes on winding or hilly
roads.(Continued)
Warning (Continued)
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 or on roads with
unclear lane markings, such as
construction zones.
{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
LKA uses a camera sensor installed on
the windshield ahead of the rearview
mirror to detect lane markings. It may
provide brief steering assist if it
detects an unintended lane departure.
It may further provide an audible alert
or the driver seat may pulse indicating
that a lane marking has been crossed.
To turn LKA on and off, press
Aon
the steering wheel. If equipped, the
indicator light on the button comes
on when LKA is on and turns off
when LKA is disabled.
When on,
Ais white, if equipped,
indicating that the system is not ready
to assist.
Ais green if LKA is ready
to assist. LKA may assist by gently
turning the steering wheel if the
vehicle approaches a detected
lane marking.
Ais amber when
assisting. It may also provide a Lane
Departure Warning (LDW) alert by
flashing
Aamber if the vehicle
crosses a detected lane marking.
Additionally, there may be three
beeps, or the driver seat may pulse
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296 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 297
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 297
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 297
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 298
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 300
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 303
Engine Oil Life System . . . . . . . . . . . 305
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Engine Air Filter Life System . . . . 306
Engine Air Cleaner/Filter . . . . . . . . . 307
Cooling System . . . . . . . . . . . . . . . . . . . 308
Engine Overheating . . . . . . . . . . . . . . 312
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 313
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 315
Battery - North America . . . . . . . . . 316
All-Wheel Drive . . . . . . . . . . . . . . . . . . 316
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . 316 Wiper Blade Replacement . . . . . . . 317
Windshield Replacement . . . . . . . . 318
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 318
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 319
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 319
LED Lighting . . . . . . . . . . . . . . . . . . . . . 319
Electrical System
Electrical System Overload . . . . . . 319
Fuses and Circuit Breakers . . . . . . 321
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Instrument Panel Fuse Block . . . . 325
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
All-Season Tires . . . . . . . . . . . . . . . . . . 331
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 331
Summer Tires . . . . . . . . . . . . . . . . . . . . 331
Tire Sidewall Labeling . . . . . . . . . . . 332
Tire Designations . . . . . . . . . . . . . . . . . 334
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . . . . . 334
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 337
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 338 Tire Pressure Monitor System . . . 339
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . . . . . . . 340
Tire Inspection . . . . . . . . . . . . . . . . . . . 343
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 344
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Buying New Tires . . . . . . . . . . . . . . . . 346
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Uniform Tire Quality Grading . . . 347
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Wheel Replacement . . . . . . . . . . . . . . 349
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 349
If a Tire Goes Flat . . . . . . . . . . . . . . . . 350
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 352
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 357
Tire Changing . . . . . . . . . . . . . . . . . . . . . 358
Compact Spare Tire . . . . . . . . . . . . . . 363
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 364
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 366
Recreational Vehicle Towing . . . . 368
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VEHICLE CARE 319
Hood
Trunk
Liftgate
Headlamp Aiming
Front Headlamp Aiming
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing procedure
not listed in this section, contact your
dealer.
Caution
Do not replace incandescent bulbs
with aftermarket LED replacement
bulbs. This can cause damage to
the vehicle electrical system.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Electrical System
Electrical System Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
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VEHICLE CARE 321
4. If the fuse must be replacedimmediately, borrow a replacement
fuse with the same amperage from
the fuse block. Choose a vehicle
feature that is not needed to safely
operate the vehicle. Repeat
Steps 2-3.
5. Insert the replacement fuse into the empty slot of the blown fuse.
At the next opportunity, see your
dealer to replace the blown fuse.
Headlamp Wiring
An electrical overload may cause the
lamps to go on and off, or in some
cases to remain off. Have the
headlamp wiring checked right away if
the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected from
electrical overload, overload due to
heavy snow or ice may cause wiper linkage damage. Always clear ice and
heavy snow from the windshield
before using the windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by electrical
problems.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit breakers.
Use of an oversized fuse or circuit
breaker can result in a vehicle fire.
You and others could be seriously
injured or killed.
{Warning
Installation or use of fuses that do
not meet GM’s original fuse
specifications is dangerous. The
fuses could fail, and result in a fire.
You or others could be injured or
killed, and the vehicle could be
damaged.
See Accessories and Modifications
0 297 and
General Information 0297.
To check or replace a blown fuse, see
Electrical System Overload 0319.
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VEHICLE CARE 323
FusesUsage
F1 Antilock Brake System Fuses
Usage
F2 Starter 1
F3 DC DC Transformer 1 Fuses
Usage
F4 –
F5 DC DC Transformer 2
F6 Amplifier 1
F7 Front Blower
F8 Starter 3
F9 –
F10 –
F11 –
F12 Front Wiper
F13 Starter 2
F14 LED/Automatic Headlamp Leveling
F15 Rear Wiper 1
F16 –
F17 –
F18 Automatic Headlamp Leveling Module
F19 –
F20 –
F21 –
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324 VEHICLE CARE
FusesUsage
F22 Electronic Brake Control Module
F23 Parking/Trailer Lamps
F24 Right Trailer Stoplamp/Turnlamp
F25 Steering Column Lock
F26 –
F27 Left Trailer Stoplamp/ Turnlamp
F28 –
F29 –
F30 Washer Pump
F31 –
F32 –
F33 Fog Lamps
F34 Horn
F35 –
F36 Headlamp High-beam –Left
F37 Headlamp high-beam –Right Fuses
Usage
F38 Spare
F39 Transmission Control Module/Battery 1
F40 Left Rear Bus Electrical Center/DC
DC Ignition
F41 Instrument Cluster
F42 Heating, Ventilation, and Air Conditioning/
Central Gateway
Module run crank
F43 Head-Up Display/ Reflective Light
Auxiliary
F44 Electronic Brake Control Module
Electric Brake
Booster/Run/Crank
F45 –
F46 –
F47 –
F48 Rear Wiper 2 Fuses
Usage
F49 Interior Rearview Mirror/Trailer/Rear
Heated Seat Run
Crank
F50 Fuel System Control Module/Fuel Tank
Zone Module Run
Crank
F51 Heated Steering Wheel
F52 Air Conditioning Clutch
F53 Coolant Pump
F54 –
F55 –
F56 Spare
F57 Engine Control Module/Ignition
F58 Transmission Control Module/Ignition
F59 Engine Control Module Battery
F60 –
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VEHICLE CARE 325
FusesUsage
F61 O2 Sensor 1/ Aeroshutter/Mass Air
Flow Sensor
F62 Engine Control Module–Odd
F63 O2 Sensor 2
F64 Engine Control Module–Even
F65 Engine Control Module Powertrain 1
F66 Engine Control Module Powertrain 2
F67 Engine Control Module Powertrain 3
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 – Fuses
Usage
F76 –
F77 –
Relays Usage
K1 Starter 1
K2 Run/Crank
K3 Starter 3
K4 LED/Automatic Headlamps
K5 –
K6 –
K7 Engine Control Module
K8 Air Conditioning
K9 –
K10 Starter 2Instrument Panel Fuse
Block
The instrument panel fuse block is in
the center console between the driver
and passenger seats. To access the
fuses, open the fuse panel door,
or remove the panel from the
passenger side by pulling it out or see
your dealer.
To reinstall the door, push the door
back into its original location.
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VEHICLE CARE 349
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider
an alignment check if there is unusual
tire wear or the vehicle is significantly
pulling to one side or the other. Some
slight pull to the left or right,
depending on the crown of the road
and/or other road surface variations
such as troughs or ruts, is normal.
If the vehicle is vibrating when driving
on a smooth road, the tires and
wheels may need to be rebalanced.
See your dealer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nutsshould be replaced. If the wheel leaks
air, replace it. Some aluminum wheels
can be repaired. See your dealer if any
of these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the same
load-carrying capacity, diameter,
width, offset, and be mounted the
same way as the one it replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor System
(TPMS) sensors with new GM original
equipment parts.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel nuts
can be dangerous. It could affect
the braking and handling of the
vehicle. Tires can lose air, and
cause loss of control, causing a
crash. Always use the correct wheel,
wheel bolts, and wheel nuts for
replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or odometer
calibration, headlamp aim, bumper
height, vehicle ground clearance,
and tire or tire chain clearance to
the body and chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one
is dangerous. How it has been used
or how far it has been driven may
be unknown. It could fail suddenly
and cause a crash. When replacing
wheels, use a new GM original
equipment wheel.
Tire Chains
{Warning
If the vehicle has 235/55R20 size
tires, do not use tire chains. There
is not enough clearance. Tire chains
(Continued)