battery CADILLAC XT4 2023 Owner's Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
246 Driving and Operating
Warning (Continued)
.Do not leave an
unsecured child
restraint in the vehicle.
.Secure loose items in
the vehicle.
.Do not leave a seat
folded down unless
needed.
Starting and
Operating
New Vehicle Break-In
Caution
The vehicle does not need
an elaborate break-in. But it
will perform better in the
long run if you follow these
guidelines:
.Do not drive at any one
constant speed, fast or
slow, for the first 800 km
(500 mi). Do not make(Continued)
Caution (Continued)
full-throttle starts. Avoid
downshifting to brake or
slow the vehicle.
.Avoid making hard stops
for the first 300 km
(200 mi) or so. During this
time the new brake linings
are not yet broken in. Hard
stops with new linings can
mean premature wear and
earlier replacement.
Follow this breaking-in
guideline every time you
get new brake linings.
.Do not tow a trailer during
break-in. See Trailer
Towing0318 for the
trailer towing capabilities
of the vehicle and more
information.
Following break-in, engine
speed and load can be
gradually increased.
On new vehicles, the various
mechanical and electrical
systems experience a “break-in”
period during the
first 6 400 km (4,000 mi) of
routine driving. As the vehicle
is driven, the mechanical
systems adjust to provide
optimal fuel economy and
transmission shift
performance.
Electrical systems will adapt
and calibrate during the
break-in period. A one-time
occurrence of clicks and
similar vehicle noises is normal
during this process.
Normal driving charges the
vehicle’s battery to achieve
the best operation of the
vehicle, including fuel economy
and the Stop/Start System.
See Stop/Start System 0249.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
248 Driving and Operating
4. Set the parking brake. SeeElectric Parking Brake
0264. Press ENGINE
START/STOP to turn the
vehicle off.
If the vehicle cannot be pulled
over and must be shut off
while driving, press and hold
ENGINE START/STOP for
longer than two seconds,
or press twice in five seconds.
Accessory Mode (Amber
Indicator Light) : This mode
allows you to use some
electrical accessories when
the engine is off.
With the ignition off, pressing
ENGINE START/STOP once
without the brake pedal
applied will place the ignition
system in accessory mode.
The ignition will switch from
accessory mode to OFF after
10 minutes to prevent battery
rundown. ON/RUN/START (Green
Indicator Light) :
This mode is
for driving and starting. With
the ignition off and the brake
pedal applied, pressing
ENGINE START/STOP once
will place the ignition system in
ON/RUN/START. Once engine
cranking begins, release the
button. Engine cranking will
continue until the engine
starts. The ignition will then
remain on. See Starting the
Engine 0248.
Service Mode
This mode is available to verify
the proper operation of the
malfunction indicator lamp as
may be required for emissions
inspection purposes and for
service and diagnostics. See
Automatic Transmission 0257.
With the vehicle off, and the
brake pedal not applied,
pressing and holding ENGINE
START/STOP for more than
five seconds will place the
vehicle in Service Mode. The
instruments and audio systems will operate as they
do in ON/RUN, but the vehicle
will not be able to be driven.
The engine will not start in
Service Mode. Press ENGINE
START/STOP again to turn
the vehicle off.
Starting the Engine
Place the transmission in the
proper gear, P (Park) or
N (Neutral). To restart the
engine when the vehicle is
already moving, use
N (Neutral).
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Driving and Operating 249
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 Equipment0325.
To start the vehicle: 1. With the Keyless Access system, the remote key
must be in the vehicle.
Press ENGINE START/
STOP with the brake pedal
applied. When the engine
begins cranking, let go of
the button. The idle speed
will go down as the engine
warms up. Do not race the
engine immediately after
starting it.
If the remote key is not in
the vehicle, if there is
interference, or if the
remote key battery is low,
a Driver Information Center (DIC) message will
display. See Remote Key
Operation
09.
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 hold it
there, then press ENGINE
START/STOP 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 clears the
extra gasoline from the
engine. Do not race the
engine immediately after
starting it. Operate the
engine and transmission
gently until the oil warms
up and lubricates all
moving parts.
Stop/Start System
The Stop/Start system will
shut off the engine to help
conserve fuel. It has
components designed for the
increased number of starts.
{Warning
The automatic engine Stop/
Start feature causes the
engine to shut off while the
vehicle is still on. Do not exit
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
250 Driving and Operating
Warning (Continued)
the vehicle before shifting to
P (Park). The vehicle may
restart and move
unexpectedly. Always shift
to P (Park), and then turn
the ignition off before
exiting the vehicle.
Auto Engine Stop/Start
When the brakes are applied
and the vehicle is at a
complete stop, the engine may
turn off. When stopped, the
tachometer displays AUTO
STOP. See Tachometer 0122.
When the brake pedal is
released or the accelerator
pedal is pressed, the engine
will restart.
To maintain vehicle
performance, other conditions
may cause the engine to
automatically restart before
the brake pedal is released.
Auto Stops may not occur
and/or Auto Starts may occur
because:
.The climate control settings
require the engine to be
running to cool or heat the
vehicle interior.
.The vehicle battery needs to
charge.
.The vehicle battery has
recently been disconnected.
.Minimum vehicle speed has
not been reached since the
last Auto Stop.
.The accelerator pedal is
pressed.
.The engine or transmission
is not at the required
operating temperature.
.The outside temperature is
not in the required operating
range.
.The vehicle transmission is
shifted out of D (Drive) to
any gear other than P (Park).
.Certain driver modes have
been selected. See Driver
Mode Control 0269.
.The vehicle is on a steep hill
or grade.
.The driver door has been
opened or the driver seat
belt has been unbuckled.
.The hood has been opened.
.The Auto Stop has reached
the maximum allowed time.
Auto Stop Disable Switch
The automatic engine Stop/
Start feature can be disabled
and enabled by pressing
h.
Auto Stop/Start is enabled
each time you start the
vehicle.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Driving and Operating 265
The Electric Parking Brake
(EPB) can always be applied,
even if the vehicle is off. In
case of insufficient electrical
power, the EPB cannot be
applied or released. To
prevent draining the battery,
avoid unnecessary repeated
cycles of the EPB.
The system has a red parking
brake status light and an
amber service parking brake
warning light. See Electric
Parking Brake Light0129 and
Service Electric Parking Brake
Light 0129. There are also
parking brake-related Driver
Information Center (DIC)
messages.
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. Press the EPB switch
momentarily.
The red parking brake status
light will flash and then stay on
once the EPB is fully applied.
If the red parking brake status
light flashes continuously, then
the EPB is only partially
applied or there is a problem
with the EPB. A DIC message
will display. Release the EPB
and try to apply it again. If the
light does not come on,
or keeps flashing, have the
vehicle serviced. Do not drive
the vehicle if the red parking
brake status light is flashing.
See your dealer.
If the amber service parking
brake warning light is on,
press the EPB switch.
Continue to hold the switch
until the red parking brake
status light remains on. If the
amber service parking brake
warning light is on, see your
dealer. If the EPB is applied while the
vehicle is moving, the vehicle
will decelerate as long as the
switch is pressed. If the switch
is pressed until the vehicle
comes to a stop, the EPB will
remain applied.
The vehicle may automatically
apply the EPB in some
situations when the vehicle is
not moving. This is normal, and
is done to periodically check
the correct operation of the
EPB system, or at the request
of other safety functions that
utilize the EPB.
If the EPB fails to apply, block
the rear wheels to prevent
vehicle movement.
EPB Release
To release the EPB:
1. Turn the ignition on or to accessory mode.
2. Apply and hold the brake pedal.
3. Press the EPB switch momentarily.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Driving and Operating 325
manufacturers recommend
replacing tires more than six
years old.
Overloading is another leading
cause of trailer tire blow-outs.
Never load your trailer with
more weight than the tires are
designed to support. The load
rating is located on the trailer
tire sidewall.
Always know the maximum
speed rating for the trailer
tires before driving. This may
be significantly lower than the
vehicle tire speed rating. The
speed rating may be on the
trailer tire sidewall. If the
speed rating is not shown, the
default trailer tire speed rating
is 105 km/h (65 mph).Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector
(DLC) is used for vehicle
service and Emission
Inspection/Maintenance
testing. See Malfunction
Indicator Lamp (Check
Engine Light)0126. A device
connected to the DLC —
such as an aftermarket fleet
or driver-behavior tracking
device —may interfere with
vehicle systems. This could
affect vehicle operation and
cause a crash. Such devices
may also access information
stored in the vehicle’s
systems.
Caution
Some electrical equipment
can damage the vehicle or
cause components to not
work and would not be
covered by the vehicle
warranty. Always check with
your dealer before adding
electrical equipment.
Add-on equipment can drain
the vehicle's 12-volt battery,
even if the vehicle is not
operating.
The vehicle has an airbag
system. Before attempting to
add anything electrical to the
vehicle, see Servicing the
Airbag-Equipped Vehicle 076
and Adding Equipment to the
Airbag-Equipped Vehicle 077.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
326 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . 327
California PerchlorateMaterials
Requirements . . . . . . . . . . . . . 327
Accessories and Modifications . . . . . . . . . . . . . . 327
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . 328
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 331
Engine Oil . . . . . . . . . . . . . . . . . . . . 332
Engine Oil Life System . . . 335
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . 336
Engine Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . 336
Engine Air Cleaner/ Filter . . . . . . . . . . . . . . . . . . . . . . . . . 337
Cooling System . . . . . . . . . . . . 338
Engine Overheating . . . . . . 342
Washer Fluid . . . . . . . . . . . . . . . . 343
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 344
Brake Fluid . . . . . . . . . . . . . . . . . . 345 Battery - North
America . . . . . . . . . . . . . . . . . . . . . 346
All-Wheel Drive . . . . . . . . . . . . . 347
Park Brake and P (Park) Mechanism Check . . . . . . . 347
Wiper Blade Replacement . . . . . . . . . . . . . . 347
Windshield Replacement . . . . . . . . . . . . . . 349
Gas Strut(s) . . . . . . . . . . . . . . . . . 349Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . 350
Bulb Replacement
Bulb Replacement . . . . . . . . 350
LED Lighting . . . . . . . . . . . . . . . . 350
Front Turn SignalLamps . . . . . . . . . . . . . . . . . . . . . . . 350
Back-Up Lamps . . . . . . . . . . . . . 351
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . . . 352
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 353
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . 354
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 360
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
All-Season Tires . . . . . . . . . . . 365
Winter Tires . . . . . . . . . . . . . . . . 366
Summer Tires . . . . . . . . . . . . . . 366
Tire Sidewall Labeling . . . . 367
Tire Designations . . . . . . . . . . 369
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . 370
Tire Pressure . . . . . . . . . . . . . . . 372
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . 374
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 375
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . 376
Tire Inspection . . . . . . . . . . . . . 380
Tire Rotation . . . . . . . . . . . . . . . . 381
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . 382
Buying New Tires . . . . . . . . . 383
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 385
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 385
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 387
Wheel Replacement . . . . . . 387
Tire Chains . . . . . . . . . . . . . . . . . . 388

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
332 Vehicle Care
1. Engine Air Cleaner/Filter0337.
2. Engine Oil Fill Cap. See Engine Oil 0332.
3. Engine Oil Dipstick. See Engine Oil 0332.
4. Engine Cooling Fan (Out of View). See Cooling System
0338.
5. Brake Fluid Reservoir. See Brake Fluid 0345.
6. Battery - North America 0346.
7. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0338.
8. Positive (+) Battery Terminal (Under Cover).
See Jump Starting - North
America 0404.
9. Windshield Washer Fluid Reservoir. See Washer
Fluid 0343.
10. Engine Compartment Fuse Block 0354. 11. Remote Negative (-)
Battery Terminal. See
Jump Starting - North
America 0404.
Engine Oil
To ensure proper engine
performance and long life,
careful attention must be paid
to engine oil. Following these
simple, but important steps
will help protect your
investment:
.Use engine oil approved to
the proper specification and
of the proper viscosity
grade. See “Selecting the
Right Engine Oil” in this
section.
.Check the engine oil level
regularly and maintain the
proper oil level. See
“Checking Engine Oil” and
“When to Add Engine Oil” in
this section.
.Change the engine oil at the
appropriate time. See Engine
Oil Life System 0335.
.Always dispose of engine oil
properly. See “What to Do
with Used Oil” in this section.
Checking Engine Oil
Check the engine oil level
regularly, every 650 km
(400 mi), especially prior to a
long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment
Overview0331 for the
location.
{Warning
The engine oil dipstick
handle may be hot; it could
burn you. Use a towel or
glove to touch the dipstick
handle.
If a low oil Driver Information
Center (DIC) message displays,
check the oil level.
Follow these guidelines:
.To get an accurate reading,
park the vehicle on level
ground. Check the engine oil
level after the engine has

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 341
1. Turn the pressure capslowly counterclockwise.
If a hiss is heard, wait for
that to stop. A hiss means
there is still some
pressure left.
2. Keep turning the pressure cap slowly and remove it.
3. If topping off the level inthe coolant surge tank, add
the proper mixture until
the level reaches the mark
on the front of the tank
and replace the cap.
Operate the vehicle.
Repeat steps 1–3, as
necessary.
If filling the system (such
as after servicing), follow
the Automatic Coolant
Service Fill Instructions.
Caution
If the pressure cap is not
tightly installed, coolant loss
and engine damage may
occur. Be sure the cap is
properly and tightly secured.
Automatic Coolant
Service Fill Instructions
This feature assists in filling
and removing air from the
cooling system after service of
components or when coolant
is added after being too low. To activate the fill and air
removal process:
1. With a cold system, add coolant to the indicated
mark on the surge tank.
2. Replace the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Turn the ignition to Service Mode. See Ignition
Positions 0247.
5. Turn off the air conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the
brake for automatic
transmission vehicles for
two seconds, then release.
At the end of the cycle, check
the coolant level in the surge
tank and add coolant if it is
low. Turn off the vehicle, allow
the Electronic Control Module
(ECM) to go to sleep, about
2 minutes, and repeat
Steps 3-7.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
346 Vehicle Care
{Warning
The wrong or contaminated
brake fluid could result in
damage to the brake
system. This could result in
the loss of braking leading to
a possible injury. Always use
the proper GM approved
brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces,
the paint finish can be
damaged. Immediately wash
off any painted surface.
Battery - North
America
The original equipment battery
is maintenance free. Do not
remove the cap and do not
add fluid.Refer to the replacement
number on the original battery
label when a new battery is
needed. For replacement of
the battery, see your dealer.
The vehicle has an Absorbent
Glass Mat (AGM) 12-volt
battery. Installation of a
standard 12-volt battery will
result in reduced 12-volt
battery life.
When using a 12-volt battery
charger on the 12-volt AGM
battery, some chargers have
an AGM battery setting on the
charger. If available, use the
AGM setting on the charger,
to limit charge voltage to
14.8 volts.
{Warning
WARNING:
Battery posts,
terminals and related
accessories can expose you
to chemicals including lead
and lead compounds, which
are known to the State of
(Continued)
Warning (Continued)
California to cause cancer
and birth defects or other
reproductive harm. Wash
hands after handling. For
more information go to
www.P65Warnings.ca.gov.
See California Proposition
65 Warning 01.
Stop/Start System
This vehicle has a Stop/Start
system to shut off the engine
to help conserve fuel. See
Stop/Start System 0249.
Vehicle Storage
{Warning
Batteries have acid that can
burn you and gas that can
explode. You can be badly
hurt if you are not careful.
Always wear eye protection.
(Continued)