2020 CADILLAC XT4 ignition

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
146 LIGHTING
door is opened after the ignition is
turned off. The dome lamp comes on
after the ignition is turned off. The
exterior lamps and dome lamp remain
on for a set amount of time, then
automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamp control off.
This feature can be changed. See
Vehicle Personalization0131.
Battery Power Protection
The battery saver feature is designed
to protect the vehicle's battery.
If some interior lamps are left on and
the ignition is turned off, the battery
rundown protection system
automatically turns the lamp off after
some time.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is turned
off, if the parking lamps or headlamps
have been manually left on. This protects against draining the battery.
To restart the 10-minute timer, turn
the exterior lamp control to the off
position and then back to the parking
lamp or headlamp position.
To keep the lamps on for more than
10 minutes, the ignition must be on or
in ACC/ACCESSORY.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
CLIMATE CONTROLS 151
Press AUTO to return to automatic
operation and the air conditioner runs
as needed.
@:Press to alternate between
recirculating air inside the vehicle or
pulling in outside air. The indicator
light on the button is lit when
recirculation mode is active. This
helps to quickly cool the air inside the
vehicle or reduce the outside air and
odors that might enter.
Pressing this control cancels
automatic recirculation. Press AUTO
to return to automatic operation;
recirculation runs automatically as
needed.
Manual recirculation mode is not
available in some air delivery modes.
In these modes, the indicator light will
be lit but the system will not switch
to recirculation.
Auto Defog : The climate control
system may have a sensor to
automatically detect high humidity
inside the vehicle. When high
humidity is detected, the climate
control system may adjust to outside
air supply and turn on the air conditioner. If the climate control
system does not detect possible
window fogging, it returns to normal
operation. To turn Auto Defog off or
on, see
“Climate and Air Quality”
under Vehicle Personalization 0131.
Ionizer : If equipped with an ionizer,
this feature helps to clean the air
inside the vehicle and remove
contaminants such as pollen, odors,
and dust. If the climate control
system is on and the ionizer is
enabled, the ionizer status indicator
will be lit on the climate control
display. To turn the ionizer on or off,
see “Climate and Air Quality” under
Vehicle Personalization 0131.
Rear Window Defogger
K:Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.
The defogger only works when the
ignition is on. The defogger turns off
if the ignition is off or in ACC/
ACCESSORY. The rear window defogger can be set
to automatic operation. See
“Climate
and Air Quality” underVehicle
Personalization 0131. When Auto Rear
Defog is selected, the rear window
defogger turns on automatically when
the interior temperature is cold and
the outside temperature is about 7 °C
(45 °F) and below.
The upper grid lines on the rear
window are antenna lines and are not
intended to heat when the defogger is
activated.
The heated outside mirrors turn on
when the rear window defogger
button is on and help to clear fog or
frost from the surface of the mirrors.Caution
Do not try to clear frost or other
material from the inside of the
front windshield and rear window
with a razor blade or anything else
that is sharp. This may damage the
rear window defogger grid and
affect the radio's ability to pick up
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
DRIVING AND OPERATING 155
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . . . . . 156
Driving Environment . . . . . . . . . . . . . 156
Vehicle Design . . . . . . . . . . . . . . . . . . . . 156
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 157
Distracted Driving . . . . . . . . . . . . . . . . 157
Defensive Driving . . . . . . . . . . . . . . . . 158
Drunk Driving . . . . . . . . . . . . . . . . . . . . 158
Control of a Vehicle . . . . . . . . . . . . . . 158
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Off-Road Recovery . . . . . . . . . . . . . . . . 160
Loss of Control . . . . . . . . . . . . . . . . . . . 160
Off-Road Driving . . . . . . . . . . . . . . . . . 161
Driving on Wet Roads . . . . . . . . . . . 165
Hill and Mountain Roads . . . . . . . . 165
Winter Driving . . . . . . . . . . . . . . . . . . . . 166
If the Vehicle Is Stuck . . . . . . . . . . . 167
Vehicle Load Limits . . . . . . . . . . . . . . 168
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 172
Ignition Positions . . . . . . . . . . . . . . . . 172
Starting the Engine . . . . . . . . . . . . . . 173 Stop/Start System . . . . . . . . . . . . . . . . 174
Engine Heater . . . . . . . . . . . . . . . . . . . . 176
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . 177
Shifting Into Park . . . . . . . . . . . . . . . . 177
Shifting out of Park . . . . . . . . . . . . . . 178
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . . . . . 180
Active Fuel Management . . . . . . . . 180
Extended Parking . . . . . . . . . . . . . . . . . 180
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 181
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Automatic Transmission
Automatic Transmission . . . . . . . . . 182
Manual Mode . . . . . . . . . . . . . . . . . . . . . 186
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 188
Brakes
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Antilock Brake System (ABS) . . . . 188
Electric Parking Brake . . . . . . . . . . . . 189
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 190
Hill Start Assist (HSA) . . . . . . . . . . . 191
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 191
Driver Mode Control . . . . . . . . . . . . . 193
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 194
Adaptive Cruise Control . . . . . . . . . 197
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 206
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . 207
Rear Pedestrian Alert . . . . . . . . . . . . 214
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . 218
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Side Blind Zone Alert (SBZA) . . . . 221
Lane Change Alert (LCA) . . . . . . . . 222
Lane Keep Assist (LKA) . . . . . . . . . . 224
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 226
Recommended Fuel . . . . . . . . . . . . . . 226
Prohibited Fuels . . . . . . . . . . . . . . . . . . 226
Fuels in Foreign Countries . . . . . . . 227

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
164 DRIVING AND OPERATING
{Warning
Getting out of the vehicle on the
downhill side when stopped across
an incline is dangerous. If the
vehicle rolls over, you could be
crushed or killed. Always get out on
the uphill side of the vehicle and
stay well clear of the rollover path.
Driving in Mud, Sand, Snow,
or Ice
Use a low gear when driving in mud–
the deeper the mud, the lower the
gear. Keep the vehicle moving to avoid
getting stuck.
Traction changes when driving on
sand. On loose sand, such as on
beaches or sand dunes, the tires tend
to sink into the sand. This affects
steering, accelerating, and braking.
Drive at a reduced speed and avoid
sharp turns or abrupt maneuvers.
Traction is reduced on hard packed
snow and ice and it is easy to lose
control. Reduce vehicle speed when
driving on hard packed snow and ice.
{Warning
Driving on frozen lakes, ponds,
or rivers can be dangerous. Ice
conditions vary greatly and the
vehicle could fall through the ice;
you and your passengers could
drown. Drive your vehicle on safe
surfaces only.
Driving in Water
{Warning
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream and
you and your passengers could
drown. If it is only shallow water, it
can still wash away the ground
from under your tires. Traction
could be lost, and the vehicle could
roll over. Do not drive through
rushing water.
Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive through it slowly. At faster
speeds, water can get into the engine
and cause it to stall. Stalling can
occur if the exhaust pipe is under
water. Do not turn off the ignition
when driving through water. If the
exhaust pipe is under water, the
engine will not start. When going
through water, the brakes get wet and
it may take longer to stop. See Driving
on Wet Roads 0165.
After Off-Road Driving
Remove any brush or debris that has
collected on the underbody or chassis,
or under the hood. These
accumulations can be a fire hazard.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
166 DRIVING AND OPERATING
.Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the vehicle
on a long downhill slope can cause
brake overheating, can reduce brake
performance, and could result in a
loss of braking. Shift the
transmission to a lower gear to let
the engine assist the brakes on a
steep downhill slope.
{Warning
Coasting downhill in N (Neutral) or
with the ignition off is dangerous.
This can cause overheating of the
brakes and loss of steering assist.
Always have the engine running
and the vehicle in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line. .
Be alert on top of hills; something
could be in your lane (e.g., stalled
car, crash).
. Pay attention to special road signs
(e.g., falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
. Select All-Wheel Drive (AWD)
Mode. See Driver Mode Control
0 193 and
All-Wheel Drive 0188.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and the
road creates less traction or grip, so
drive carefully. Wet ice can occur at
about 0 °C (32 °F) when freezing rain
begins to fall. Avoid driving on wet ice
or in freezing rain until roads can be
treated.
For Slippery Road Driving:
.
Accelerate gently. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick. .
Turn on Traction Control. See
Traction Control/Electronic Stability
Control 0191.
. Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes should
be applied sooner than when on
dry pavement. See Antilock Brake
System (ABS) 0188.
. Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise
clear roads in shaded areas. The
surface of a curve or an overpass
can remain icy when the
surrounding roads are clear. Avoid
sudden steering maneuvers and
braking while on ice.
. Turn off cruise control.
. Select All-Wheel Drive (AWD)
Mode for vehicles equipped with
AWD. Select Snow/Ice Mode for
FWD only vehicles. See Driver
Mode Control 0193 and
All-Wheel Drive 0188.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
172 DRIVING AND OPERATING
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 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
(Continued)
Caution (Continued)
breaking-in guideline every
time you get new brake
linings.
Following break-in, engine speed
and load can be gradually
increased.
Ignition Positions
The vehicle has an electronic keyless
ignition with pushbutton start. If the pushbutton start is not working,
the vehicle may be near a strong radio
antenna signal causing interference to
the Remote Keyless Entry (RKE)
system. See
Remote Keyless Entry
(RKE) System Operation 08.
To shift out of P (Park), the vehicle
must be turned on and the brake
pedal must be applied.
Stopping the Engine/OFF (No
Indicator Light) : When the vehicle is
stopped, press ENGINE START/STOP
once to turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory Power
(RAP) 0177.
If the vehicle is in R (Reverse), D
(Drive) or M (Manual Mode), the
vehicle will shift to P (Park), the
ignition will turn off, and RAP will
remain active.
If the vehicle is in N (Neutral), the
ignition will return to ACC/
ACCESSORY and display the message
SHIFT TO PARK in the Driver
Information Center (DIC).

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-
13527548) - 2020 - CRC - 9/5/19
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.