2020 CADILLAC XT4 service indicator

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
VEHICLE CARE 257
Open the cap with the washer symbol
on it. Add washer fluid until the tank
is full. SeeEngine Compartment
Overview 0246 for reservoir location.
Caution
.
Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
. Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
to freeze and damage the
washer fluid tank and other
parts of the washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
(Continued)
Caution (Continued)
.Fill the washer fluid tank only
three-quarters full when it is
very cold. This allows for
fluid expansion if freezing
occurs, which could damage
the tank if it is
completely full.
Brakes
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or can be
heard all the time when the vehicle is
moving, except when applying the
brake pedal firmly.
{Warning
The brake wear warning sound
means that soon the brakes will not
work well. That could lead to a
(Continued)
Warning (Continued)
crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Caution
Continuing to drive with worn-out
brake pads could result in costly
brake repair.
Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications. See Capacities and
Specifications 0333.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
SERVICE AND MAINTENANCE 327
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage. The
brake lamps need to be checked
periodically to ensure that they
light when braking.
. With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
. Signs of wear may include steering
wheel vibration, bounce/sway
while braking, longer stopping
distance, or uneven tire wear.
. As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs of leaking, blown seals, or damage,
and can advise when service is
needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel, and
can reduce the risk of tire failure.
. Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the tread
or sidewall; or a bulge or split in
the tire.
. Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also provide
tire/wheel balancing services to
ensure smooth vehicle operation
at all speeds. Your dealer sells and
services name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and protect the vehicle’s interior and
exterior, see
Interior Care 0314 and
Exterior Care 0310.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver optimal
wear and performance.
. Signs that the alignment may need
to be adjusted include pulling,
improper vehicle handling,
or unusual tire wear.
. Your dealer has the required
equipment to ensure proper wheel
alignment.
Windshield
For safety, appearance, and the best
viewing, keep the windshield clean
and clear.
. Signs of damage include scratches,
cracks, and chips.
. Trained dealer technicians can
inspect the windshield and
recommend proper replacement if
needed.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
364 INDEX
Fuel (cont'd)Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Fuses and Circuit Breakers . . . . . . . 265
Instrument Panel Fuse Block . . . . 269
G
Garage Door Opener . . . . . . . . . . . . . . . . 136 Programming . . . . . . . . . . . . . . . . . . . . . . 136
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 262
Gauges Engine Coolant Temperature . . . . 112
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Speedometer . . . . . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 111
Trip Odometer . . . . . . . . . . . . . . . . . . . . 111
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 107
Gear Shifting Light . . . . . . . . . . . . . . . . . 118
General Information Service and Maintenance . . . . . . . . 318
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 242
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
H
Hazard Warning Flashers . . . . . . . . . . 143
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 41
Head-up Display . . . . . . . . . . . . . . . . . . . . 127
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 142
Bulb Replacement . . . . . . . . . . . . . . . . 264
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 142
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 142
High-Beam On Light . . . . . . . . . . . . . . 123
High/Low Beam Changer . . . . . . . . . 142
Lamps On Reminder . . . . . . . . . . . . . . 123
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . 99
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 32
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
High-Beam On Light . . . . . . . . . . . . . . . . 123
High-Speed Operation . . . . . . . . . . . . . . 280 Hill and Mountain Roads . . . . . . . . . . 165
Hill Start Assist (HSA) . . . . . . . . . . . . . 191
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
How to Wear Seat Belts Properly . . . 53
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 172
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Indicator
Pedestrian Ahead . . . . . . . . . . . . . . . . . 119
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 119
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Information Publication Ordering . . . . . . . . . . . . . 345
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . 147
Infotainment System . . . . . . . . . . . . . . . 349
Instrument Cluster . . . . . . . . . . . . . . . . . 108
Instrument Panel Overview . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . . . 33
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . 306

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
INDEX 365
K
Keyless EntryRemote (RKE) System . . . . . . . . . . . . . . . 8
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 274
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Daytime Running (DRL) . . . . . . . . . . 142
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Exterior Controls . . . . . . . . . . . . . . . . . . 140
Exterior Lamps Off Reminder . . . . 142
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Front Turn Signal . . . . . . . . . . . . . . . . . 264
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 115
On Reminder . . . . . . . . . . . . . . . . . . . . . . 123
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Lane Change Alert (LCA) . . . . . . . . . . . 222
Lane Keep Assist (LKA) . . . . . . . . . . . . 224
Lane Keep Assist Light . . . . . . . . . . . . . 119
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 55
LATCH System Replacing Parts after a Crash . . . . . . 86 LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . . . . 78
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 264
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Illumination Control . . . . . . . . . . . . . . 144
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 114
All-Wheel Drive . . . . . . . . . . . . . . . . . . . 119
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . 118
Brake System Warning . . . . . . . . . . . 117
Charging System . . . . . . . . . . . . . . . . . . 115
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 115
Cruise Control . . . . . . . . . . . . . . . . . . . . . 123
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Driver Mode Control . . . . . . . . . . . . . . 121
Electric Parking Brake . . . . . . . . . . . . 117
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 121
Engine Oil Pressure . . . . . . . . . . . . . . . 122
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 142
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . 118
High-Beam On . . . . . . . . . . . . . . . . . . . . 123 Lights (cont'd)
High/Low Beam Changer . . . . . . . . . 142
Lane Keep Assist . . . . . . . . . . . . . . . . . . 119
Low Fuel Warning . . . . . . . . . . . . . . . . 122
Seat Belt Reminders . . . . . . . . . . . . . . 113
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Service Electric Parking Brake . . . 118
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 120
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 121
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . . . . . 120
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 120
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 20
Delayed Locking . . . . . . . . . . . . . . . . . . . . 19
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lockout Protection . . . . . . . . . . . . . . . . . 20
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 160
Low Fuel Warning Light . . . . . . . . . . . 122
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . 78
Lumbar Adjustment . . . . . . . . . . . . . . . . . 43 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
366 INDEX
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 326
Maintenance Schedule . . . . . . . . . . . . . 319 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 329
Malfunction Indicator Lamp . . . . . . . 115
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . 186
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 45
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . 130
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 131
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . 33
Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . 33
Automatic Dimming Rearview . . . . . 33
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Manual Rearview . . . . . . . . . . . . . . . . . . . 33
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . 33
Mirrors, Interior Rearview . . . . . . . . . . . 33 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Driver Control . . . . . . . . . . . . . . . . . . . . . 193
Monitor System, Tire Pressure . . . . . 281
N
Navigation Connected Services . . . . . . . . . . . . . . . 357
New Vehicle Break-In . . . . . . . . . . . . . . . 172
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Engine Oil Life System . . . . . . . . . . . 249
Pressure Light . . . . . . . . . . . . . . . . . . . . . 122
Older Children, Restraints . . . . . . . . . . . 72
Online Owner Center . . . . . . . . . . . . . . . 339
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
OnStar Additional Information . . . . 352
OnStar Emergency . . . . . . . . . . . . . . . . . . 351
OnStar Overview . . . . . . . . . . . . . . . . . . . . 350
OnStar Security . . . . . . . . . . . . . . . . . . . . . 351
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Overheating, Engine . . . . . . . . . . . . . . . . 255 Overview
Instrument Panel . . . . . . . . . . . . . . . . . . . . 5
P
Park
Shifting Out of . . . . . . . . . . . . . . . . . . . . 178
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Parking
Brake and P (Park)Mechanism Check . . . . . . . . . . . . . . . 260
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Over Things That Burn . . . . . . . . . . . 180
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . 207
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Passenger Sensing System . . . . . . . . . . 66
Pedestrian Ahead Indicator . . . . . . . . 119
Perchlorate Materials Requirements, California . . . . . . . . . 243
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104