2023 CADILLAC XT5 radiator

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
352 Vehicle Care
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
2.0L L4 Engine
1. Electric Engine CoolingFan (Out of View)
2. Coolant Surge Tank and Pressure Cap
3.6L V6 Engine
1. Electric Engine Cooling
Fan (Out of View)
2. Coolant Surge Tank and Pressure Cap
{Warning
An underhood electric fan
can start up even when the
engine is not running and
can cause injury. Keep
hands, clothing, and tools
away from any underhood
electric fan.
{Warning
Do not touch heater or
radiator hoses, or other
engine parts. They can be
very hot and can burn you.
Do not run the engine if
there is a leak; all coolant
could leak out. That could
cause an engine fire and can
burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The engine cooling system in
the vehicle is filled with
DEX-COOL engine coolant
mixture. This coolant needs to
be checked and changed at
appropriate levels. See
Recommended Fluids and
Lubricants 0433 and
Maintenance Schedule 0429.
The following explains the
cooling system and how to
check and add coolant when it
is low. If there is a problem
with engine overheating, see
Engine Overheating 0356.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
Vehicle Care 353
What to Use
{Warning
Do not touch heater or
radiator hoses, or other
engine parts. They can be
very hot and can burn you.
Do not run the engine if
there is a leak; all coolant
could leak out. That could
cause an engine fire and can
burn you. Fix any leak before
driving the vehicle.
Use a 50/50 mixture of clean,
drinkable water and
DEX-COOL coolant. This
mixture:
.Gives freezing protection
down to −37 °C (−34 °F),
outside temperature.
.Gives boiling protection up
to 129 °C (265 °F), engine
temperature.
.Protects against rust and
corrosion.
.Will not damage aluminum
parts.
.Helps keep the proper
engine temperature.
Caution
Do not use anything other
than a mix of DEX-COOL
coolant that meets GM
Standard GMW3420 and
clean, drinkable water.
Anything else can cause
damage to the engine
cooling system and the
vehicle, which would not be
covered by the vehicle
warranty.
Never dispose of engine
coolant by putting it in the
trash, pouring it on the
ground, or pouring into
sewers, streams, or bodies of
water. Have the coolant
changed by an authorized
service center, familiar with
legal requirements regarding
used coolant disposal. This will
help protect the environment
and your health.
Checking Coolant
The vehicle must be on a level
surface when checking the
coolant level.
Check to see if coolant is
visible in the coolant surge
tank. If the coolant inside the
coolant surge tank is boiling,
do not do anything else until it
cools down. If coolant is visible
but the coolant level mark is
not at or above the indicated
mark, add a 50/50 mixture of
clean, drinkable water and
DEX-COOL coolant. Be sure

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
354 Vehicle Care
the cooling system is cool
before this is done. See
Engine Overheating0356.
The coolant surge tank is in
the engine compartment on
the driver side of the vehicle.
See Engine Compartment
Overview 0342.
How to Add Coolant to the
Surge Tank
{Warning
Spilling coolant on hot
engine parts can burn you.
Coolant contains ethylene
glycol and it will burn if the
engine parts are hot enough.
{Warning
Steam and scalding liquids
from a hot cooling system
are under pressure. Turning
the pressure cap, even a
little, can cause them to
come out at high speed and
(Continued)
Warning (Continued)
you could be burned. Never
turn the cap when the
cooling system, including the
pressure cap, is hot. Wait for
the cooling system and
pressure cap to cool.
Caution
Failure to follow the specific
coolant fill procedure could
cause the engine to
overheat and could cause
system damage. If coolant is
not visible in the surge tank,
contact your dealer.
The coolant surge tank
pressure cap can be removed
when the cooling system,
including the surge tank
pressure cap and upper
radiator hose, is no longer hot.
Coolant Fill Instructions
(3.6L Engine Only)
1. Turn the pressure cap slowly counterclockwise.
If a hiss is heard, wait for
that to stop. A hiss means
there is still some
pressure left.
2. Keep turning the pressure cap slowly and remove it.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/28/22
Vehicle Care 355
3. Fill the coolant surge tankwith the proper mixture to
the mark pointed to on the
front of the coolant
surge tank.
4. With the coolant surge tank pressure cap off,
start the engine and let it
run until you can feel the
upper radiator hose
getting hot. Watch out for
the engine cooling fans. By
this time, the coolant level
inside the coolant surge
tank may be lower. If the
level is lower, add more of
the proper mixture to the coolant surge tank until
the level reaches the mark
pointed to on the front of
the coolant surge tank.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and
the coolant is cold.
If necessary, repeat
coolant fill procedure
Step 1–6.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
(2.0L Engine Only)
If equipped, 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,
disconnect the vent line
from the port near the cap
on the surge tank. Add
coolant to the indicated
mark on the surge tank.
2. Reconnect the vent line to the surge tank and replace
the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Put the vehicle in Service Mode. See Ignition
Positions 0252.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
476 INDEX
ProgramCourtesy
Transportation . . . . . . . . . . . 448
Prohibited Fuels . . . . . . . . . . . . . . 318
Proposition 65 Warning California . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Proposition
65 Warning, California . . . 409
Publication Ordering Information . . . . . . . . . . . . . . . . . . 452
R
Radiator . . . . . . . . . . . . . . . . . . . . . . . . 352
RadioAM-FM Radio . . . . . . . . . . . . . . . . 166
Data System (RDS) . . . . . . . . . 169
Frequency Statement . . . . 452
Reception . . . . . . . . . . . . . . . . . . . . . 170
Satellite . . . . . . . . . . . . . . . . . . . . . . . 169
Reading Lamps . . . . . . . . . . . . . . . 156
Rear Camera Mirror . . . . . . . . . . . . . . . . 39
Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 229
Cross Traffic Alert (RCTA) System . . . . . . . . . . . 302
Heated Seats . . . . . . . . . . . . . . . . . 59
Pedestrian Alert . . . . . . . . . . . 300 Rear (cont'd)
Seat Armrest . . . . . . . . . . . . . . . . . 59
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Storage . . . . . . . . . . . . . . . . . . . . . . . 104
Vision Camera (RVC) . . . . . . 291
Window Washer/Wiper . . . 116
Rearview Mirrors . . . . . . . . . . . . . . 39
Automatic Dimming . . . . . . . . . 39
Reclining Seatbacks . . . . . . . . . . 50
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Recommended
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Recommended Fluids and Lubricants . . . . . . . . . . . . . 433
Records
Maintenance . . . . . . . . . . . . . . . . 436
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . . . . . . 414
Reimbursement Program, GM Mobility . . . . 445
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Key Operation . . . . . . . . . . . . . . . . . . 9
Vehicle Start . . . . . . . . . . . . . . . . . . . 19
Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Maintenance . . . . . . . . . . . . . . . . 434 Replacing
Airbag System . . . . . . . . . . . . . . . . 81
LATCH System Parts
After a Crash . . . . . . . . . . . . . . . 97
Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . 68
Reporting Safety Defects
Canadian Government . . . 453
General Motors . . . . . . . . . . . . 454
U.S. Government . . . . . . . . . . 453
Restraints
Where to Put . . . . . . . . . . . . . . . . . 88
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . 258
Reverse Automatic Braking . . . . . . . . . . . . . . . . . . . . . . . . 299
Reverse Tilt Mirrors . . . . . . . . . . 39
Roads Driving, Wet . . . . . . . . . . . . . . . . . 243
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 446
Roof Rack System . . . . . . . . . . . . . . . . . 109
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 44
Rotation, Tires . . . . . . . . . . . . . . . 393
Routing, Engine
Drive Belt . . . . . . . . . . . . . . . . . . . . . 440