warning lights CADILLAC XT4 2020 Owner's Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
48 SEATS AND RESTRAINTS
Obstructions
If something has blocked the driver
seat and/or power steering wheel
while recalling a memory position, the
recall may stop. Remove the
obstruction and try the recall again.
If the memory position still does not
recall, see your dealer.
Heated and Ventilated
Front Seats
{Warning
If temperature change or pain to
the skin cannot be felt, the seat
heater may cause burns. To reduce
the risk of burns, use care when
using the seat heater, especially for
long periods of time. Do not place
anything on the seat that insulates
against heat, such as a blanket,
cushion, cover, or similar item. This
may cause the seat heater to
overheat. An overheated seat heater
may cause a burn or may damage
the seat.
Uplevel Buttons Shown, Base ButtonsSimilar
If equipped, the buttons are near the
climate controls on the center stack.
To operate, the engine must be
running.
Press
Jorzto heat the driver or
passenger cushion and seatback.
Press
Cor{to ventilate the driver
or passenger seat.
Press the button once for the highest
setting. With each press of the button,
the seat will change to the next lower
setting, and then to the off setting.
The indicator lights above the buttons indicate three for the highest setting
and one for the lowest. If the front
heated seats are on high, the level
may automatically be lowered after
approximately 30 minutes.
A ventilated seat has a fan that pulls
or pushes air through the seat. The air
is not cooled.
The passenger seat may take longer to
heat up.
Auto Heated and Ventilated Seats
If the vehicle is equipped with auto
heated or ventilated seats, and the
engine is running, this feature will
automatically activate the heated or
ventilated seats at the level required
by the vehicle's interior temperature.
The active high, medium, low, or off
heated or ventilated seat level will be
indicated by the manual heated and
ventilated seat buttons on the center
stack. Use the manual heated and
ventilated seat buttons on the center
stack to turn auto heated or ventilated
seats off. If the passenger seat is
unoccupied, the auto heated or
ventilated seats feature will not
activate that seat. The auto heated

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
52 SEATS AND RESTRAINTS
If equipped, the rear heated seat
buttons are on the rear of the center
console.
Press
MorLto heat the left
outboard or right outboard seat. Press
the button once for the highest
setting. With each press of the button,
the seat will change to the next lower
setting, and then to the off setting.
The indicator lights on the buttons
indicate three for the highest setting
and one for the lowest.
Seat Belts
This section describes how to use seat
belts properly, and some things not
to do.
{Warning
Do not let anyone ride where a seat
belt cannot be worn properly. In a
crash, if you or your passenger(s)
are not wearing seat belts, injuries
can be much worse than if you are
wearing seat belts. You can be
seriously injured or killed by hitting
things inside the vehicle harder or
by being ejected from the vehicle.
In addition, anyone who is not
buckled up can strike other
passengers in the vehicle.
It is extremely dangerous to ride in
a cargo area, inside or outside of a
vehicle. In a collision, passengers
riding in these areas are more likely
to be seriously injured or killed. Do
(Continued)
Warning (Continued)
not allow passengers to ride in any
area of the vehicle that is not
equipped with seats and seat belts.
Always wear a seat belt, and check
that all passenger(s) are restrained
properly too.
This vehicle has indicators as a
reminder to buckle the seat belts. See
Seat Belt Reminders 0113.
Why Seat Belts Work

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
98 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . . . 99
Steering Wheel Controls . . . . . . . . . . 99
Heated Steering Wheel . . . . . . . . . . . . 99
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Windshield Wiper/Washer . . . . . . . 100
Rear Window Wiper/Washer . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Power Outlets . . . . . . . . . . . . . . . . . . . . . 104
Wireless Charging . . . . . . . . . . . . . . . . 104
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 107
Instrument Cluster . . . . . . . . . . . . . . . 108
Speedometer . . . . . . . . . . . . . . . . . . . . . . 111
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 111
Trip Odometer . . . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 111
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 112
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Seat Belt Reminders . . . . . . . . . . . . . . 113 Airbag Readiness Light . . . . . . . . . . 114
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 114
Charging System Light . . . . . . . . . . . 115
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 115
Brake System Warning Light . . . . 117
Electric Parking Brake Light . . . . . 117
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 118
Gear Shifting Light . . . . . . . . . . . . . . . 118
All-Wheel-Drive Light . . . . . . . . . . . . 119
Lane Keep Assist (LKA) Light . . . 119
Vehicle Ahead Indicator . . . . . . . . . 119
Pedestrian Ahead Indicator . . . . . . 119
Traction Off Light . . . . . . . . . . . . . . . . 120
StabiliTrak OFF Light . . . . . . . . . . . . 120
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 120
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 121
Driver Mode Control Light . . . . . . . 121
Tire Pressure Light . . . . . . . . . . . . . . . 121
Engine Oil Pressure Light . . . . . . . . 122
Low Fuel Warning Light . . . . . . . . . 122
Security Light . . . . . . . . . . . . . . . . . . . . . 123
High-Beam On Light . . . . . . . . . . . . . 123
Lamps On Reminder . . . . . . . . . . . . . 123 Cruise Control Light . . . . . . . . . . . . . . 123
Door Ajar Light . . . . . . . . . . . . . . . . . . . 124
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . . . . 124
Head-Up Display (HUD) . . . . . . . . . 127
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 130
Engine Power Messages . . . . . . . . . . 130
Vehicle Speed Messages . . . . . . . . . 131
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 131
Universal Remote System
Universal Remote System . . . . . . . . 136
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 136
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 138

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
INSTRUMENTS AND CONTROLS 107
Warning Lights, Gauges,
and Indicators
Warning lights and gauges can signal
that something is wrong before it
becomes serious enough to cause an
expensive repair or replacement.
Paying attention to the warning lights
and gauges could prevent injury.
Some warning lights come on briefly
when the engine is started to indicate
they are working. When one of the
warning lights comes on and stays on
while driving, or when one of the
gauges shows there may be a problem,
check the section that explains what
to do. Waiting to do repairs can be
costly and even dangerous.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
114 INSTRUMENTS AND CONTROLS
Airbag Readiness Light
This light shows if there is an
electrical problem with the airbag
system. The system check includes
the airbag sensor(s), the passenger
sensing system, the pretensioners, the
airbag modules, the wiring, and the
crash sensing and diagnostic module.
For more information on the airbag
system, seeAirbag System 060.
The airbag readiness light comes on
for several seconds when the vehicle is
started. If the light does not come on
then, have it fixed immediately.
{Warning
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
(Continued)
Warning (Continued)
the airbag system might not be
working properly. The airbags in the
vehicle might not inflate in a crash,
or they could even inflate without a
crash. To help avoid injury, have
the vehicle serviced right away.
If there is a problem with the airbag
system, a Driver Information Center
(DIC) message may also come on.
Passenger Airbag Status
Indicator
The vehicle has a passenger sensing
system. See Passenger Sensing System
0 66 for important safety information.
The overhead console has a passenger
airbag status indicator.
When the vehicle is started, the
passenger airbag status indicator will
light ON and OFF, and the symbols for
on and off, for several seconds as a
system check. Then, after several more
seconds, the status indicator will light
either ON or OFF, and either the
symbol for on or off, to let you know
the status of the front outboard
passenger frontal airbag and knee
airbag.
If the word ON, and the on symbol,
are lit on the passenger airbag status
indicator, it means that the front
outboard passenger frontal airbag and
knee airbag are allowed to inflate.
If the word OFF, and the off symbol,
are lit on the passenger airbag status
indicator, it means that the passenger
sensing system has turned off the
front outboard passenger frontal
airbag and knee airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See your
dealer for service.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
140 LIGHTING
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . 140
Exterior Lamps Off Reminder . . . 142
Headlamp High/Low-BeamChanger . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . 142
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 142
Automatic Headlamp System . . . 142
Hazard Warning Flashers . . . . . . . . 143
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Cornering Lamps . . . . . . . . . . . . . . . . . 144
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Courtesy Lamps . . . . . . . . . . . . . . . . . . 144
Dome Lamps . . . . . . . . . . . . . . . . . . . . . 144
Reading Lamps . . . . . . . . . . . . . . . . . . . 145
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . 145
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . 145
Battery Power Protection . . . . . . . . 146
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
turn signal lever.
Turn the control to the following
positions:
O:Turns the exterior lamps off and
deactivates the AUTO mode. Turn to
Oagain to reactivate the AUTO mode.
In Canada, the headlamps will
automatically reactivate when the
vehicle is shifted out of P (Park).
AUTO : Automatically turns the
exterior lamps on and off, depending
on outside lighting.
;: Turns on the parking lamps
including all lamps, except the
headlamps.
2: Turns on the headlamps together
with the parking lamps and
instrument panel lights.
IntelliBeam System
If equipped, this system turns the
vehicle's high-beam headlamps on and
off according to surrounding traffic
conditions.
The system turns the high-beam
headlamps on when it is dark enough
and there is no other traffic present.
This light
bcomes on in the
instrument cluster when the
IntelliBeam system is enabled.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
LIGHTING 143
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it is
light outside when the vehicle leaves
the garage, there is a slight delay
before the automatic headlamp
system changes to the Daytime
Running Lamps (DRL). During that
delay, the instrument cluster may not
be as bright as usual. Make sure the
instrument panel brightness control is
in the full bright position. See
Instrument Panel Illumination Control
0144.
When it is bright enough outside, the
headlamps will turn off or may change
to DRL.
The automatic headlamp system turns
off when the exterior lamp control is
turned to
Oor the ignition is off.
For vehicles sold in Canada, this
control only works when the
transmission is in P (Park).
Lights On with Wipers
If the windshield wipers are activated
in daylight with the engine on, and
the exterior lamp control is in AUTO, the headlamps, parking lamps, and
other exterior lamps come on. The
transition time for the lamps coming
on varies based on wiper speed. When
the wipers are not operating, these
lamps turn off. Move the exterior
lamp control to
Oor;to disable
this feature.
Hazard Warning Flashers
|: Press|to make the front and
rear turn signal lamps flash on and
off. Press again to turn the
flashers off. The hazard warning flashers turn on
automatically if the airbags deploy.
Turn and Lane-Change
Signals
Move the lever all the way up or down
to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the turn
signal flashes three times.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
202 DRIVING AND OPERATING
Alerting the Driver
With Head-Up Display
Without Head-Up Display
If ACC is engaged, driver action may
be required when ACC cannot apply
sufficient braking because of
approaching a vehicle too rapidly.
When this condition occurs, six red
lights or the collision alert symbol on
the HUD, if equipped, will flash on the
windshield. Either eight beeps will
sound from the front, or both sides of
the Safety Alert Seat will pulse five
times. See “Collision/Detection
Systems” underVehicle Personalization
0 131. See
Defensive Driving 0158.
Approaching and Following a
Vehicle
The vehicle ahead indicator is in the
instrument cluster and HUD display.
The vehicle ahead indicator only
displays when a vehicle is detected in
your vehicle’s path moving in the
same direction.
If this symbol is not displaying, ACC
will not respond to or brake for
vehicles ahead.
ACC automatically slows the vehicle
down and adjusts vehicle speed to
follow the vehicle in front at the
selected follow gap. The vehicle speed
increases or decreases to follow the
vehicle in front of you, but will not
exceed the set speed. It may apply
limited braking, if necessary. When
braking is active, the brake lamps will come on. The automatic braking may
feel or sound different than if the
brakes were applied manually. This is
normal.
Stationary or Very Slow-Moving
Objects
{Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a vehicle
it has never detected moving. This
can occur in stop-and-go traffic or
when a vehicle suddenly appears
due to a vehicle ahead changing
lanes. Your vehicle may not stop
and could cause a crash. Use
caution when using ACC. Your
complete attention is always
required while driving and you
should be ready to take action and
apply the brakes.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
DRIVING AND OPERATING 215
beeps from the rear, or if equipped,
seven pulses from both sides of the
driver seat.
{Warning
Rear Pedestrian Alert does not
automatically brake the vehicle.
It also does not provide an alert
unless it detects a pedestrian, and it
may not detect all pedestrians if:. The pedestrian is not directly
behind the vehicle, fully
visible to the Rear Vision
Camera (RVC), or standing
upright.
. The pedestrian is part of a
group.
. The pedestrian is a child.
. Visibility is poor, including
nighttime conditions, fog,
rain, or snow.
. The RVC is blocked by dirt,
snow, or ice.
(Continued)
Warning (Continued)
.The RVC, taillamps,
or back-up lamps are not
cleaned or in proper working
condition.
. The vehicle is not in
R (Reverse).
To help avoid death or injury,
always check for pedestrians
around the vehicle before backing
up. Be ready to take action and
apply the brakes. See Defensive
Driving 0158. Keep the RVC,
taillamps, and back-up lamps clean
and in good repair.
Rear Pedestrian Alert can be set to Off
or Alert. See “Rear Pedestrian
Detection ”in “Collision/Detection
Systems” underVehicle Personalization
0 131. If equipped, alerts can be set to
beeps or seat pulses. See “Alert Type”
in “Collision/Detection Systems” under
Vehicle Personalization 0131.
Assistance Systems for
Driving
If equipped, when driving the vehicle
in a forward gear, Forward Collision
Alert (FCA), Lane Departure Warning
(LDW), Lane Keep Assist (LKA), Side
Blind Zone Alert (SBZA), Lane Change
Alert (LCA), Automatic Emergency
Braking (AEB), and/or the Front
Pedestrian Braking (FPB) System can
help to avoid a crash or reduce crash
damage.
Forward Collision Alert
(FCA) System
If equipped, the FCA system may help
to avoid or reduce the harm caused by
front-end crashes. When approaching
a vehicle ahead too quickly, FCA
provides a red flashing alert on the
windshield and rapidly beeps or pulses
the driver seat. FCA also lights an
amber visual alert if following another
vehicle much too closely.
FCA detects vehicles within a distance
of approximately 60 m (197 ft) and
operates at speeds above 8 km/h
(5 mph). If the vehicle has Adaptive

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
222 DRIVING AND OPERATING
a forward gear, the left or right side
mirror display will light up if a moving
vehicle is detected in that blind zone.
If the turn signal is activated and a
vehicle is also detected on the same
side, the display will flash as an extra
warning not to change lanes. Since
this system is part of the Lane Change
Alert (LCA) system, read the entire
LCA section before using this feature.
Lane Change Alert (LCA)
If equipped, the LCA system is a
lane-changing aid that assists drivers
with avoiding lane change crashes
that occur with moving vehicles in the
side blind zone (or spot) areas or with
vehicles rapidly approaching these
areas from behind. The LCA warning
display will light up in the
corresponding outside side mirror and
will flash if the turn signal is on.
{Warning
LCA does not alert the driver to
vehicles outside of the system
detection zones, pedestrians,
bicyclists, or animals. It may not
provide alerts when changing lanes
under all driving conditions. Failure
to use proper care when changing
lanes may result in injury, death,
or vehicle damage. Before making a
lane change, always check mirrors,
glance over your shoulder, and use
the turn signals.
LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone of
approximately one lane over from
both sides of the vehicle, or 3.5 m
(11 ft). The height of the zone is
approximately between 0.5 m (1.5 ft)
and 2 m (6 ft) off the ground. The Side
Blind Zone Alert (SBZA) warning area
starts at approximately the middle of
the vehicle and goes back 5 m (16 ft).
Drivers are also warned of vehicles
rapidly approaching from up to 25 m
(82 ft) behind the vehicle.
How the System Works
The LCA symbol lights up in the side
mirrors when the system detects a
moving vehicle in the next lane over
that is in the side blind zone or
rapidly approaching that zone from
behind. A lit LCA symbol indicates it
may be unsafe to change lanes. Before
making a lane change, check the LCA
display, check mirrors, glance over
your shoulder, and use the turn
signals.