Engine battery CADILLAC XT4 2020 User Guide

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
DRIVING AND OPERATING 173
When the vehicle is shifted into
P (Park), the ignition will turn off.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the vehicle
off in an emergency.
If the vehicle must be shut off in an
emergency: 1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to a
safe location.
3. Come to a complete stop and shift to P (Park). 4. Set the parking brake. See
Electric Parking Brake 0189.
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.
ACC/ACCESSORY (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 ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY 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
0173.
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 0182.
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).

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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174 DRIVING AND OPERATING
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 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 Equipment0239.
To start the vehicle: 1. With the Keyless Access system, the RKE transmitter 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 RKE transmitter is not in
the vehicle, if there is
interference, or if the RKE
battery is low, a Driver
Information Center (DIC)
message will display. See
Remote
Keyless Entry (RKE) System
Operation 08.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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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DRIVING AND OPERATING 175
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit 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 0111. 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 charge is low.
. 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 is in any gear other
than D (Drive).
. Driver modes have been selected.
. 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 the switch with the
h
symbol. Auto Stop is enabled each
time you start the vehicle.
When
his illuminated, the system is
enabled.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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178 DRIVING AND OPERATING
Warning (Continued)
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle can
move suddenly. You or others could
be injured. To be sure the vehicle
will not move, even when you are
on fairly level ground, always
set the parking brake and shift
to P (Park). SeeShifting Into Park
0 177. If you are towing a trailer,
see Driving Characteristics and
Towing Tips 0230.
If you have to leave the vehicle with
the engine running, be sure the
vehicle is in P (Park) and the parking
brake is set before you leave it. See
Electric Parking Brake 0189.
If you are towing a trailer and parking
on a hill, see Driving Characteristics
and Towing Tips 0230.
Shifting out of Park
This vehicle is equipped with an
electronically controlled transmission.
The shift lock release button is
designed to prevent inadvertent
shifting out of P (Park) unless the
ignition is on, the brake pedal is
applied, and the shift lock release
button is pressed.
The shift lock control is always
functional except in the case of an
uncharged or low voltage (less than
9-volt) battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. See Jump Starting - North
America 0306.
To shift out of P (Park):
1. Ensure the engine is running.
2. Apply the brake pedal.
3. Press and hold the shift lock release button.
4. Move the shift lever to the desired position. 5. The P indicator will turn white
and the gear indicator on the
shift lever will turn red when the
vehicle is no longer in P (Park).
6. After releasing the shift lever, it will return to the center position.
If the vehicle cannot shift from
P (Park), a Driver Information
Center (DIC) message will be
displayed. See your dealer for service.
Manual Park Release
{Warning
The transmission will be placed in
N (Neutral) when the manual park
release is pulled. The vehicle can
roll and you or others could be
injured. Ensure the vehicle is on
level ground.

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DRIVING AND OPERATING 189
If there is a problem with ABS, this
warning light stays on. SeeAntilock
Brake System (ABS) Warning Light
0 118.
ABS does not change the time needed
to get a foot on the brake pedal and
does not always decrease stopping
distance. If you get too close to the
vehicle ahead, there will not be
enough time to apply the brakes if
that vehicle suddenly slows or stops.
Always leave enough room ahead to
stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold the
brake pedal down firmly. Hearing and
feeling ABS operate is normal.
Braking in Emergencies
ABS allows steering and braking at the
same time. In many emergencies,
steering can help even more than
braking.
Electric Parking Brake
The vehicle has an Electric Parking
Brake (EPB). The EPB can always be
activated, even if the ignition is off. To
prevent draining the battery, avoid
repeated cycles of the EPB system
when the engine is not running. The system has a
Yor PARK
Electric Parking Brake light, and a
8
Service Parking Brake light. See
Electric Parking Brake Light 0117 and
Service Electric Parking Brake Light
0 118.
Before leaving the vehicle, check for
the
Yor PARK 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
Yor PARK light will flash and
then stay on once the EPB is fully
applied. If the
Yor PARK 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

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VEHICLE CARE 241
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 242
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 242
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 243
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 243
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 243
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 246
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 247
Engine Oil Life System . . . . . . . . . . . 249
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Air Filter Life System . . . . 250
Engine Air Cleaner/Filter . . . . . . . . . 251
Cooling System . . . . . . . . . . . . . . . . . . . 252
Engine Overheating . . . . . . . . . . . . . . 255
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 256
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 258
Battery - North America . . . . . . . . . 259 All-Wheel Drive . . . . . . . . . . . . . . . . . . 260
Starter Switch Check . . . . . . . . . . . . . 260
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 260
Wiper Blade Replacement . . . . . . . 261
Windshield Replacement . . . . . . . . 262
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 263
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 264
LED Lighting . . . . . . . . . . . . . . . . . . . . . 264
Front Turn Signal Lamps . . . . . . . . 264
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 264
Electrical System
Electrical System Overload . . . . . . 265
Fuses and Circuit Breakers . . . . . . 265
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Instrument Panel Fuse Block . . . . 269
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
All-Season Tires . . . . . . . . . . . . . . . . . . 273
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 273
Summer Tires . . . . . . . . . . . . . . . . . . . . 273
Tire Sidewall Labeling . . . . . . . . . . . 274
Tire Designations . . . . . . . . . . . . . . . . . 276 Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 276
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 280
Tire Pressure Monitor System . . . 281
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 281
Tire Inspection . . . . . . . . . . . . . . . . . . . 285
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 286
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Buying New Tires . . . . . . . . . . . . . . . . 287
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Uniform Tire Quality Grading . . . 289
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Wheel Replacement . . . . . . . . . . . . . . 291
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 292
If a Tire Goes Flat . . . . . . . . . . . . . . . . 292
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 293
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 300
Tire Changing . . . . . . . . . . . . . . . . . . . . . 300
Compact Spare Tire . . . . . . . . . . . . . . 305
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 306

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242 VEHICLE CARE
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 309
Recreational Vehicle Towing . . . . 309
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . 310
Interior Care . . . . . . . . . . . . . . . . . . . . . . 314
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . 317
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM
parts and GM-trained and supported
service people.
Genuine GM parts have one of these
marks:
California Proposition
65 Warning
{Warning
Most motor vehicles, including this
one, as well as many of its service
parts and fluids, contain and/or
emit chemicals known to the State
of California to cause cancer and
birth defects or other reproductive
harm. Engine exhaust, many parts
and systems, many fluids, and
some component wear by-products
contain and/or emit these
chemicals. For more information go
to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0259 and
Jump Starting - North America 0306
and the back cover.

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VEHICLE CARE 247
1.Engine Air Cleaner/Filter 0251.
2. Engine Oil Fill Cap. See Engine Oil
0 247.
3. Engine Oil Dipstick. See Engine
Oil 0247.
4. Engine Cooling Fan (Out of View). See Cooling System 0252.
5. Brake Fluid Reservoir. See Brake
Fluid 0258.
6. Battery - North America 0259.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 252.
8. Positive (+) Battery Terminal (Under Cover). See Jump Starting
- North America 0306.
9. Windshield Washer Fluid Reservoir. See Washer Fluid
0 256.
10. Engine Compartment Fuse Block
0266.
11. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0306.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 0249.
. 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 Overview 0246 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 been off for at least
two hours. Checking the engine oil
level on steep grades or too soon
after engine shutoff can result in
incorrect readings. Accuracy
improves when checking a cold
engine prior to starting. Remove
the dipstick and check the level.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 255
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
0 172.
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.
Listen for pump activation and
movement of the control valves while
watching the level of the coolant in
the surge tank. If the tank empties,
turn the ignition off, carefully remove
the surge tank cap, refill to the
indicated mark, and repeat Steps 3-6.
The fill and air removal process will
run for approximately 10 minutes.
Engine Overheating
The vehicle has several indicators to
warn of the engine overheating.
There is an engine coolant
temperature gauge on the instrument cluster. See
Engine Coolant Temperature
Gauge 0112. The vehicle may also
display a message on the Driver
Information Center (DIC).
If the decision is made not to lift the
hood when this warning appears, get
service help right away. See Roadside
Service 0340.
If the decision is made to lift the
hood, make sure the vehicle is parked
on a level surface. Then check to see if
the engine cooling fan is running.
If the engine is overheating, the fan
should be running. If it is not, do not
continue to run the engine. Have the
vehicle serviced.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all coolant
and can damage the system and
vehicle. Have any leaks fixed
right away.

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VEHICLE CARE 259
What to Add
Use only GM approved DOT 3 brake
fluid from a clean, sealed container.
SeeRecommended Fluids and
Lubricants 0329.
{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
shown on the original battery label
when a new battery is needed. See
Engine Compartment Overview
0246
for battery location.
Stop/Start System
The vehicle has a Stop/Start system to
shut off the engine to help conserve
fuel. See Stop/Start System 0174.
The vehicle has an Absorbed 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. Follow
the charger manufacturer's
instructions.
{Warning
WARNING: Battery posts,
terminals, and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
Batteries also contain other
chemicals known to the State of
California to cause cancer. WASH
HANDS AFTER HANDLING. For
more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See California Proposition 65 Warning
0 242 and the back cover.
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode. You
can be badly hurt if you are not
(Continued)