2024 CADILLAC XT4 service indicator

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
110 Instruments and Controls
Auto Stop Indicator
This light comes on when the engine is in
an Auto Stop.
SeeStop/Start System 0176.
Security Light
The security light should come on briefly as
the vehicle is started. If it does not come
on, have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light stays on and the vehicle does
not start, there could be a problem with the
theft-deterrent system.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use.
See Headlamp High/Low-Beam Changer
0 124.
See Exterior Lamp Controls 0122.
Automatic High-Beam Light
If equipped, this light comes on when the
IntelliBeam system or Adaptive Headlight
system is enabled.
See Exterior Lamp Controls 0122.
Adaptive Forward Lighting (AFL)
Light
If equipped, this light comes on solid when
there is a problem with the AFL system or
Adaptive Headlight system.
See Adaptive Forward Lighting (AFL) 0125.
See Exterior Lamp Controls 0122.
Lamps On Reminder
This light comes on when the exterior lamps
are in use, except when only the Daytime
Running Lamps (DRL) are active. See Exterior
Lamp Controls 0122.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Driving and Operating 175
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 0175.
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 0181.
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.
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 Equipment 0259.
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
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

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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180 Driving and Operating
Warning (Continued)
to P (Park). If you are towing a trailer,
seeDriving Characteristics and Towing
Tips 0250.
If you have to leave the vehicle with the
engine running, be sure the vehicle is in
P (Park) and the EPB is set before you leave
it. See Electric Parking Brake 0187.
If you are towing a trailer and parking on a
hill, see Driving Characteristics and Towing
Tips 0250.
Shifting out of Park
This vehicle is equipped with an electronic
transmission. The shift lock release button is
designed to prevent inadvertent shifting out
of P (Park).
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
may be displayed. Check that the ignition is
on, the engine is running, the brake pedal is
applied, and the shift lock release button is
pressed when you are attempting to shift
out of P (Park). If all of these are met but
the vehicle will not shift out of P (Park), see
your dealer for service.Parking over Things That Burn
{Warning
Things that can burn could touch hot
exhaust parts under the vehicle and
ignite. Do not park over papers, leaves,
dry grass, or other things that can burn.
Active Fuel Management
This vehicle's engine may be equipped with
Active Fuel Management, which allows the
engine to operate on either all of its
cylinders, or in reduced cylinder operation
mode, depending on the driving conditions.
When less power is required, such as
cruising at a constant vehicle speed, the
system will operate in reduced cylinder
operation mode, allowing the vehicle to
achieve better fuel economy. When greater
power demands are required, such as
accelerating from a stop, passing,
or merging onto a freeway, the system will
maintain full-cylinder operation.
If the vehicle has an Active Fuel
Management indicator, see Driver
Information Center (DIC) for more
information on using this display.
Extended Parking
It is best not to park with the vehicle
running. If the vehicle is left running, be
sure it will not move and there is adequate
ventilation.
See Shifting Into Park 0179 and
Engine Exhaust 0181.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
208 Driving and Operating
Warning (Continued)
crash. Super Cruise may not respond as
you would to all driving situations and
may not maintain lane position under all
conditions.
It is extremely important to pay
attention to the operation of the vehicle,
even while using Super Cruise. Do not
use a hand-held device while driving,
even with Super Cruise engaged. To
prevent serious injury or death:
.Always remain properly seated in the
driver seat with your seat belt
fastened.
.Never remove your hands from the
steering wheel when Super Cruise is
not operating.
.Always make sure traffic conditions
are safe before using Super Cruise.
.Always keep the entire vehicle and the
sensors clean. Sensors are on the
front, sides, and rear of the vehicle.
.Always observe posted speed limits.
Only use Super Cruise at or below the
posted speed limit.(Continued)
Warning (Continued)
Super Cruise should not be used in
complex or uncertain driving conditions,
including:
.Not in construction zones.
.Not when approaching or exiting toll
plazas.
.Not when approaching an intersection
that is controlled with a traffic light,
stop sign, or other traffic control
device.
.Not when lane markings are not
present or cannot be detected. For
example, there is too much glare,
weather conditions are poor, or lanes
are poorly marked.
.Not on slippery or icy roads.
.Not in adverse weather conditions,
including rain, sleet, fog, ice, or snow.
.Not on winding or hilly roads.
.Not for city driving.
.Not during heavy or emergency
braking.(Continued)
Warning (Continued)
.Not on a road shoulder, service drive,
or under an elevated freeway.
.Not when towing a trailer that does
not meet GM approved guidelines.
.Not in a highway exit lane.
When Super Cruise is Available
Super Cruise Indicator
Super Cruise is designed to operate
only when:
.ACC is on. See Adaptive Cruise Control
(Advanced) 0196.
.Teen Driver is not active.
.The GPS detects the vehicle is on a Super
Cruise-enabled road.
.Both the camera and the radar sensors
are functioning and not covered,
obstructed, or damaged.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Driving and Operating 235
Following Distance Indicator
The following distance to a moving vehicle
ahead in your path is indicated in following
time in seconds on the Driver Information
Center (DIC). SeeDriver Information Center
(DIC) 0111. The minimum following time is
0.5 seconds away. If there is no vehicle
detected ahead, or the vehicle ahead is out
of sensor range, dashes will be displayed.
Unnecessary Alerts
FCA may provide unnecessary alerts for
turning vehicles, vehicles in other lanes,
objects that are not vehicles, or shadows.
These alerts are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to operate
properly, this may correct the issue:
.Clean the outside of the windshield in
front of the rearview mirror.
.Clean the entire front of the vehicle.
.Clean the headlamps.
Automatic Emergency
Braking (AEB)
If equipped, the AEB system may help avoid
or reduce the harm caused by front-end
crashes. AEB also includes Intelligent Brake
Assist (IBA). When the system detects a
vehicle in the path ahead that is traveling in
the same direction, and that you may crash
into, it can provide a boost to braking,
or automatically brake the vehicle. This can
help avoid or lessen the severity of crashes
when driving in a forward gear. Depending
on the situation, the vehicle may
automatically brake moderately or hard. This
Automatic Emergency Braking can only
occur if a vehicle is detected. Vehicle
detection is shown by the Forward Collision
Alert (FCA) vehicle ahead indicator being lit.
See Forward Collision Alert (FCA) System
0 233.
The system works when driving in a forward
gear between 8 km/h (5 mph) and 80 km/h
(50 mph), or on vehicles with Adaptive
Cruise Control (ACC), above 4 km/h (2 mph).
It can detect vehicles up to approximately
60 m (197 ft).
{Warning
AEB is an emergency crash preparation
feature and is not designed to avoid
crashes. Do not rely on AEB to brake the
vehicle. AEB will not brake outside of its
operating speed range and only responds
to detected vehicles.
AEB may not:
.Detect a vehicle ahead on winding or
hilly roads.
.Detect all vehicles, especially vehicles
with a trailer, tractors, muddy
vehicles, etc.
.Detect a vehicle when weather limits
visibility, such as in fog, rain, or snow.
.Detect a vehicle ahead if it is partially
blocked by pedestrians or other
objects.
Complete attention is always required
while driving, and you should be ready to
take action and apply the brakes and/or
steer the vehicle to avoid crashes.
AEB may slow the vehicle to a complete
stop to try to avoid a potential crash. If this
happens, AEB may engage the Electric

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Driving and Operating 259
Trailer tires deteriorate over time. The trailer
tire sidewall will show the week and year
the tire was manufactured. Many trailer tire
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)0102. 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 061 and Adding Equipment to the
Airbag-Equipped Vehicle 061.