2020 CADILLAC XT4 319

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
258 VEHICLE CARE
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.
Brake Fluid
The brake master cylinder reservoir is
filled with GM approved DOT 3 brake
fluid as indicated on the reservoir cap.
SeeEngine Compartment Overview
0 246 for the location of the reservoir.
Checking Brake Fluid
With the vehicle in P (Park) on a level
surface, the brake fluid level should be
between the minimum and maximum
marks on the brake fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
. Normal brake lining wear. When
new linings are installed, the fluid
level goes back up.
. A fluid leak in the brake hydraulic
system. Have the brake hydraulic
system fixed. With a leak, the
brakes will not work well.
Always clean the brake fluid reservoir
cap and the area around the cap
before removing it.
Do not top off the brake fluid. Adding
fluid does not correct a leak. If fluid is
added when the linings are worn,
there will be too much fluid when new brake linings are installed. Add or
remove fluid, as necessary, only when
work is done on the brake hydraulic
system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You or
others could be burned, and the
vehicle could be damaged. Add
brake fluid only when work is done
on the brake hydraulic system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See Brake System Warning Light
0 117.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid at
the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0319.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
262 VEHICLE CARE
5. Push the new blade assemblysecurely on the wiper arm until
the release lever clicks into place.
6. Start the engine and the rear wiper will return to its normal
position.
Windshield Replacement
HUD System
If equipped, the windshield is part of
the HUD system. If the windshield
must be replaced, get one that is
designed for HUD or the HUD image
may look out of focus.
Driver Assistance Systems
When a windshield replacement is
needed and the vehicle is equipped
with a front-looking camera sensor for
the Driver Assistance Systems, the
windshield must be installed
according to GM specifications for
these systems to work properly. If it is
not, there may be unexpected
behavior and/or messages from these
systems.
Acoustic Windshield
The vehicle is equipped with an
acoustic windshield. If the windshield
needs to be replaced, be sure to get an
acoustic windshield so you will
continue to have the benefits an
acoustic windshield can provide.
Gas Strut(s)
This vehicle is equipped with gas
strut(s) to provide assistance in lifting
and holding open the hood/trunk/
liftgate system in full open position.
{Warning
If the gas struts that hold open the
hood, trunk, and/or liftgate fail, you
or others could be seriously injured.
Take the vehicle to your dealer for
service immediately. Visually
inspect the gas struts for signs of
wear, cracks, or other damage
periodically. Check to make sure the
hood/trunk/liftgate is held open
with enough force. If struts are
(Continued)
Warning (Continued)
failing to hold the hood/trunk/
liftgate, do not operate. Have the
vehicle serviced.
Caution
Do not apply tape or hang any
objects from gas struts. Also do not
push down or pull on gas struts.
This may cause damage to the
vehicle.
See Maintenance Schedule 0319.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
286 VEHICLE CARE
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule0319.
Tires are rotated to achieve a
more uniform wear for all tires.
The first rotation is the most
important.
Anytime unusual wear is noticed,
rotate the tires as soon as
possible, check for proper tire
inflation pressure, and check for
damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel
alignment. See When It Is Time for
New Tires 0287 and
Wheel Replacement 0291.
Use this rotation pattern when
rotating the tires.
Do not include the compact spare
tire in the tire rotation.
Adjust the front and rear tires to
the recommended inflation
pressure on the Tire and Loading
Information label after the tires
have been rotated. See Tire
Pressure 0279 and
Vehicle Load Limits 0168.
Reset the Tire Pressure Monitor
System. See Tire Pressure Monitor
Operation 0281. Check that all wheel nuts are
properly tightened. See
“Wheel
Nut Torque ”under Capacities and
Specifications 0333, and
“Removing the Flat Tire and
Installing the Spare Tire ”under
Tire Changing 0300.
{Warning
Rust or dirt on a wheel, or on
the parts to which it is fastened,
can make wheel nuts become
loose after time. The wheel
could come off and cause a
crash. When changing a wheel,
remove any rust or dirt from
places where the wheel attaches
to the vehicle. In an emergency,
a cloth or a paper towel can be
used; however, use a scraper or
wire brush later to remove all
rust or dirt.
Lightly coat the inner diameter of
the wheel hub opening with wheel
bearing grease after a wheel

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
318 SERVICE AND MAINTENANCE
Service and
Maintenance
General Information
General Information . . . . . . . . . . . . . 318
Maintenance Schedule
Maintenance Schedule . . . . . . . . . . . 319
Special Application Services
Special Application Services . . . . . 325
Additional Maintenance
and Care
Additional Maintenanceand Care . . . . . . . . . . . . . . . . . . . . . . . . . 326
Recommended Fluids,
Lubricants, and Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 329
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Maintenance Records
Maintenance Records . . . . . . . . . . . . 331
General Information
Your vehicle is an important
investment. This section describes the
required maintenance for the vehicle.
Follow this schedule to help protect
against major repair expenses
resulting from neglect or inadequate
maintenance. It may also help to
maintain the value of the vehicle if it
is sold. It is the responsibility of the
owner to have all required
maintenance performed.
Your dealer has trained technicians
who can perform required
maintenance using genuine
replacement parts. They have
up-to-date tools and equipment for
fast and accurate diagnostics. Many
dealers have extended evening and
Saturday hours, courtesy
transportation, and online scheduling
to assist with service needs.
Your dealer recognizes the importance
of providing competitively priced
maintenance and repair services. With
trained technicians, the dealer is the
place for routine maintenance such as
oil changes and tire rotations and additional maintenance items like
tires, brakes, batteries, and wiper
blades.
Caution
Damage caused by improper
maintenance can lead to costly
repairs and may not be covered by
the vehicle warranty. Maintenance
intervals, checks, inspections,
recommended fluids, and lubricants
are important to keep the vehicle in
good working condition.
Do not have chemical flushes that
are not approved by GM performed
on the vehicle. The use of flushes,
solvents, cleaners, or lubricants that
are not approved by GM could
damage the vehicle, requiring
expensive repairs that are not
covered by the vehicle warranty.
The Tire Rotation and Required
Services are the responsibility of the
vehicle owner. It is recommended to
have your dealer perform these
services every 12 000 km/7,500 mi.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
SERVICE AND MAINTENANCE 319
Proper vehicle maintenance helps to
keep the vehicle in good working
condition, improves fuel economy, and
reduces vehicle emissions.
Because of the way people use
vehicles, maintenance needs vary.
There may need to be more frequent
checks and services. The Additional
Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire
and Loading Information label. See
Vehicle Load Limits 0168.
. Are driven on reasonable road
surfaces within legal driving limits.
. Use the recommended fuel. See
Recommended Fuel 0226.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe are for vehicles that are:
. Mainly driven in heavy city traffic
in hot weather.
. Mainly driven in hilly or
mountainous terrain. .
Frequently towing a trailer.
. Used for high speed or competitive
driving.
. Used for taxi, police, or delivery
service.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Severe chart.
{Warning
Performing maintenance work can
be dangerous and can cause serious
injury. Perform maintenance work
only if the required information,
proper tools, and equipment are
available. If they are not, see your
dealer to have a trained technician
do the work. See Doing Your Own
Service Work 0243.
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
.
Check the engine oil level. See
Engine Oil 0247.
Once a Month
. Check the tire inflation pressures.
See Tire Pressure 0279.
. Inspect the tires for wear. See Tire
Inspection 0285.
. Check the windshield washer fluid
level. See Washer Fluid 0256.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the engine
oil life system may not indicate the
need for vehicle service for up to a
year. The engine oil and filter must be
changed at least once a year and the
oil life system must be reset. Your
trained dealer technician can perform
this work. If the engine oil life system

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
366 INDEX
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 326
Maintenance Schedule . . . . . . . . . . . . . 319 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 329
Malfunction Indicator Lamp . . . . . . . 115
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . 186
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 45
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . 130
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 131
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . 33
Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . 33
Automatic Dimming Rearview . . . . . 33
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Manual Rearview . . . . . . . . . . . . . . . . . . . 33
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . 33
Mirrors, Interior Rearview . . . . . . . . . . . 33 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Driver Control . . . . . . . . . . . . . . . . . . . . . 193
Monitor System, Tire Pressure . . . . . 281
N
Navigation Connected Services . . . . . . . . . . . . . . . 357
New Vehicle Break-In . . . . . . . . . . . . . . . 172
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Engine Oil Life System . . . . . . . . . . . 249
Pressure Light . . . . . . . . . . . . . . . . . . . . . 122
Older Children, Restraints . . . . . . . . . . . 72
Online Owner Center . . . . . . . . . . . . . . . 339
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
OnStar Additional Information . . . . 352
OnStar Emergency . . . . . . . . . . . . . . . . . . 351
OnStar Overview . . . . . . . . . . . . . . . . . . . . 350
OnStar Security . . . . . . . . . . . . . . . . . . . . . 351
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Overheating, Engine . . . . . . . . . . . . . . . . 255 Overview
Instrument Panel . . . . . . . . . . . . . . . . . . . . 5
P
Park
Shifting Out of . . . . . . . . . . . . . . . . . . . . 178
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Parking
Brake and P (Park)Mechanism Check . . . . . . . . . . . . . . . 260
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Over Things That Burn . . . . . . . . . . . 180
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . 207
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Passenger Sensing System . . . . . . . . . . 66
Pedestrian Ahead Indicator . . . . . . . . 119
Perchlorate Materials Requirements, California . . . . . . . . . 243
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104