2024 CADILLAC XT4 warning light

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
102 Instruments and Controls
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, or if the airbag readiness light
is on, there may be a problem with the
lights or the passenger sensing system. See
your dealer for service right away.
{Warning
If the airbag readiness light ever comes
on and stays on, it means that
something may be wrong with the airbag
system. To help avoid injury to yourself
or others, have the vehicle serviced right
away. SeeAirbag Readiness Light 0101
for more information, including important
safety information.
Charging System Light
The charging system light comes on briefly
when the ignition is turned on, but the
engine is not running, as a check to show
the light is working. It should go out when
the engine is started.
If the light stays on, or comes on while
driving, there may be a problem with the
electrical charging system. Have it checked
by your dealer. Driving while this light is on
could drain the battery.
When this light comes on, or is flashing, the
Driver Information Center (DIC) also displays
a message.
If a short distance must be driven with the
light on, be sure to turn off all accessories,
such as the radio and air conditioner. Find a
safe place to stop the vehicle.
Malfunction Indicator Lamp
(Check Engine Light)
This light is part of the vehicle’s emission
control on-board diagnostic system. If this
light is on while the engine is running, a
malfunction has been detected and the
vehicle may require service. The light should
come on to show that it is working when
the ignition is on and the engine is not
running. See Ignition Positions 0174.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
104 Instruments and Controls
.Critical emission control systems have not
been completely diagnosed. If this
happens, the vehicle would not be ready
for inspection and might require
several days of routine driving before the
system is ready for inspection. This can
happen if the 12-volt battery has recently
been replaced or run down, or if the
vehicle has been recently serviced.
See your dealer if the vehicle will not pass
or cannot be made ready for the test.
Brake System Warning Light
MetricEnglish
This light comes on briefly when the vehicle
is turned on to show that the light is
working. If it does not come on then, have
it fixed so it will be ready to warn you if
there is a problem. If the light comes on and stays on, there is
a brake problem. Have the brake system
inspected right away. This light may come
on if the brake fluid is low. See
Brake Fluid
0 273.
If the light comes on while driving, pull off
the road and stop carefully. The brake pedal
might be harder to push, or the brake pedal
may go closer to the floor. It could take
longer to stop. If the light is still on, have
the vehicle towed for service. See
Transporting a Disabled Vehicle 0317.
{Warning
The brake system might not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to a crash.
If the light is still on after the vehicle has
been pulled off the road and carefully
stopped, have the vehicle towed for
service.
Electric Parking Brake Light
MetricEnglish
This light comes on when the parking brake
is applied. If the light continues flashing
after the parking brake is released, or while
driving, there is a problem with the Electric
Parking Brake system. A message may also
display in the Driver Information
Center (DIC).
If the light does not come on, or remains
flashing, see your dealer.
Service Electric Parking Brake
Light

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Instruments and Controls 105
This light should come on briefly when the
vehicle is turned on. If it does not come on,
have it fixed so it will be ready to warn if
there is a problem.
If this light stays on or comes on while
driving, there is a problem with the Electric
Parking Brake (EPB). Take the vehicle to a
dealer as soon as possible. In addition to the
parking brake, other safety functions that
utilize the EPB may also be degraded.
A message may also display in the Driver
Information Center (DIC). SeeElectric Parking
Brake 0187.
Antilock Brake System (ABS)
Warning Light
This light comes on briefly when the vehicle
is turned on to show that the light is
working. If it does not come on then, have
it fixed so it will be ready to warn you if
there is a problem. If the ABS warning light stays on, or comes
on again while driving, the vehicle needs
service. A chime may also sound when the
light stays on.
If the ABS warning light is the only light on,
the vehicle has regular brakes, but ABS is
not functioning.
If both the ABS warning light and the brake
system warning light are on, ABS is not
functioning and there is a problem with the
regular brakes. See your dealer for service.
See
Brake System Warning Light 0104.
Gear Shifting Light
If equipped, this light comes on when a gear
shift is recommended for best fuel economy.
When the arrow is pointed up, an upshift is
recommended. When the arrow is pointed
down, a downshift is recommended. The
number displayed with the arrow indicates
the recommended gear.
Performance Shifting Light
If equipped, this light may display green
when Sport Mode is activated and certain
driving conditions are met. Sport Mode
detects when the vehicle is being driven in a
sporty manner, and adjusts the shifting of
the gears accordingly. See Driver Mode
Control 0190.
All-Wheel-Drive Light
All-Wheel-Drive LightFront-Wheel-Drive
Light
If equipped, the corresponding light comes
on when an All-Wheel Drive (AWD) mode or
Front-Wheel-Drive mode is selected. See
All-Wheel Drive 0186.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
106 Instruments and Controls
If the light turns amber, there may be a
malfunction. See your dealer.
Lane Keep Assist (LKA) Light
If equipped, the Lane Keep Assist Light may
display the following colors:
.Blank: LKA is disabled.
.White: Appears when the vehicle starts.
A steady white light indicates that LKA is
not ready to assist.
.Green: Appears when LKA is turned on
and ready to assist. LKA will gently turn
the steering wheel if the vehicle
approaches a detected lane marking.
.Amber: Appears when LKA is active. The
light flashes amber as a Lane Departure
Warning (LDW) alert to indicate that the
lane marking has been unintentionally
crossed. If the system detects you are
steering intentionally (to pass or change
lanes), the LDW alert may not display.
The amber light also appears when the
Blind Zone Steering Assist detects apotential crash with a moving vehicle in
the lane you are entering. See
Blind Zone
Steering Assist (BZSA) 0243.
LKA will not assist or alert if the turn signal
is active in the direction of lane departure,
or if LKA detects that you are accelerating,
braking, or actively steering. See Lane Keep
Assist (LKA) 0245.
Automatic Emergency Braking
(AEB) Disabled Light
This indicator displays when you turn off
Automatic Emergency Braking (AEB) or Front
Pedestrian Braking (FPB).
This indicator will also display if AEB or FPB
is unavailable due to malfunction, weather
conditions, or if the windshield is not clean.
See Automatic Emergency Braking (AEB)
0 235.
See Front Pedestrian Braking (FPB) System
0 238.
Vehicle Ahead Indicator
If equipped, this indicator will display green
when a vehicle is detected ahead and amber
when you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA) System
0 233.
Pedestrian Ahead Indicator
If equipped, this indicator will display amber
when a nearby pedestrian is detected in
front of the vehicle.
See Front Pedestrian Braking (FPB) System
0 238.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
108 Instruments and Controls
Engine Coolant Temperature
Warning Light
On some vehicles this light comes on briefly
while starting the vehicle. If it does not,
have the vehicle serviced by the dealer.
If the system is working normally the
indicator light goes off. For vehicles with the
reconfigurable cluster, this light may not
come on when starting the vehicle.
Caution
The engine coolant temperature warning
light indicates that the vehicle has
overheated. Driving with this light on can
damage the engine and it may not be
covered by the vehicle warranty. See
Engine Overheating0271.
The engine coolant temperature warning
light comes on when the engine has
overheated. If this happens pull over and turn off the
engine as soon as possible. See
Engine
Overheating 0271.
Driver Mode Control Light
This light comes on when Normal Mode is
selected.
This light comes on when Sport Mode is
selected.
This light comes on when Snow/Ice Mode is
selected.
This light comes on when Off-Road Mode is
selected.
This light comes on when My Mode is
selected. See Driver Mode Control 0190.
Tire Pressure Light

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Instruments and Controls 109
If equipped with the Tire Pressure Monitor
System (TPMS), this light comes on briefly
when the vehicle is started. It provides
information about tire pressures and
the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires
are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display. Stop as
soon as possible, and inflate the tires to the
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 292.
When the Light Flashes First and Then Is On
Steady
If the light flashes for about a minute and
then stays on, there may be a problem with
the TPMS. If the problem is not corrected,
the light will come on every time the
vehicle is started. See Tire Pressure Monitor
Operation 0295.Engine Oil Pressure Light
Caution
Driving the vehicle with low engine oil
pressure can damage the engine and the
repairs would not be covered by the
vehicle warranty.
If the engine oil pressure light comes on
while driving:
1. Stop in a safe location and turn off the engine.
2. Check the oil level. See Engine Oil
0 264.
3. Add oil if the oil level is below the normal operating range.
4. Restart the vehicle. If the engine oil pressure light stays on for more
than 10 seconds, turn the vehicle
back off. Do not restart the vehicle.
See your dealer for service.
This light should come on briefly when the
engine starts. When the engine is off and
the vehicle is on, the light should remain
illuminated. If it does not come on under
either condition, contact your dealer.
If the light comes on and stays on when the
engine is running, it may not have adequate
oil pressure. The oil level may be low or
there may be some other oil system
problem. Turn the engine off when it is safe
to do so and contact your dealer.
Low Fuel Warning Light
A Low Fuel Warning Light near the fuel
gauge comes on briefly when the ignition is
turned on as a check to show it is working.
It also comes on when the fuel gauge
indicator nears empty. The light turns off
when fuel is added. If it does not, have the
vehicle serviced.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
122 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . . 122
Exterior Lamps Off Reminder . . . . . . . . . . 124
Headlamp High/Low-Beam Changer . . . . 124
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Daytime Running Lamps (DRL) . . . . . . . . . 124
Automatic Headlamp System . . . . . . . . . . 125
Adaptive Forward Lighting (AFL) . . . . . . . 125
Headlamp Leveling Control . . . . . . . . . . . . 127
Hazard Warning Flashers . . . . . . . . . . . . . . 127
Turn and Lane-Change Signals . . . . . . . . . 127
Cornering Lamps . . . . . . . . . . . . . . . . . . . . . . . 127
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . 128
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . 128
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 129
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Battery Power Protection . . . . . . . . . . . . . . 129
Exterior Lighting Battery Saver . . . . . . . . 129
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
O
again to reactivate the AUTO mode.
For vehicles first sold 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
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
\comes on in the instrument
cluster when the IntelliBeam system is
enabled.
Turning On and Enabling IntelliBeam
To enable and disable the IntelliBeam
system on the infotainment home screen,
select Settings > Vehicle >
\Automatic
High Beam Assist.
Driving with IntelliBeam
The system only activates the high beams
when driving over 40 km/h (25 mph).
The blue high-beam on light appears on the
instrument cluster when the high beams
are on.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
124 Lighting
The headlamp high-beam alters according to
the traffic situation, preventing high beam
light from glaring towards oncoming or
preceding traffic. This gives the best light
distribution without glaring other road
users.
The Adaptive Headlight system remains on
until one of the following situations occurs:
.The system detects a preceding vehicle’s
taillamps.
.The vehicle speed drops below
approximately 20 km/h (12 mph).
The high beams may not turn off
automatically if the system cannot detect
another vehicle lamps because of any of the
following:
.The other vehicle’s lamps are missing,
damaged, obstructed from view,
or otherwise undetected.
.The other vehicle’s lamps are covered
with dirt, snow, and/or road spray.
.The other vehicle’s lamps cannot be
detected due to dense exhaust, smoke,
fog, snow, road spray, mist, or other
airborne obstructions.
.The vehicle windshield is dirty, cracked,
or obstructed by something that blocks
the view of the light sensor.
.The vehicle is loaded in a way that the
front end points upward, causing the light
sensor to aim high and not detect
headlamps and taillamps.
.The vehicle is being driven on winding or
hilly roads.
The Adaptive Headlight system may need to
be disabled if any of the above conditions
exist.
Do not use the Adaptive Headlight System
in dense exhaust, smoke, fog, snow, road
spray, mist, or other airborne obstructions.
Exterior Lamps Off Reminder
A warning chime sounds if the driver door is
opened while the ignition is off and the
exterior lamps are on.
Headlamp High/Low-Beam
Changer
3: Push the turn signal lever away from
you and release, to turn the high beams on.
To return to low beams, push the lever
again or pull it toward you and release.
This indicator light turns on in the
instrument cluster when the high-beam
headlamps are on.
Flash-to-Pass
To flash the high beams, pull the turn signal
lever toward you, and release.
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of your vehicle during the day. Fully
functional DRL are required on all vehicles
first sold in Canada.
The dedicated DRL will come on when all of
the following conditions are met:
.The ignition is on.
.The exterior lamp control is in AUTO.
.The light sensor determines it is daytime.
.The parking brake is released or the
vehicle is not in P (Park).