Page 253 of 339

Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
Vehicle Care 253
1.Engine Air Cleaner/Filter 0256.
2. Engine Oil Fill Cap. See Engine Oil 0253.
3. Engine Oil Dipstick. See Engine Oil 0253.
4. Engine Cooling Fan (Out of View). See Cooling
System 0257.
5. Brake Fluid Reservoir. See Brake Fluid 0263.
6. Battery 0264.
7. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0257.
8. Positive (+) Battery Terminal (Under Cover). See Jump
Starting 0301.
9. Windshield Washer Fluid Reservoir. See Washer
Fluid 0262.
10. Engine Compartment Fuse
Block 0272.
11. Remote Negative (-) Battery Terminal. See Jump
Starting 0301.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
. Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0255.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the vehicle must be on level ground. The
engine oil dipstick handle is a loop.
See
Engine Compartment Overview
0 252 for the location of the engine
oil dipstick.
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.
2. Pull out the dipstick and wipe it with a clean paper towel or
cloth, then push it back in all
the way. Remove it again,
keeping the tip down, and
check the level.
Page 260 of 339

Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
260 Vehicle Care
Caution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.
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.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.
3. Fill the coolant surge tank with 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.
Caution
If the pressure cap is not tightly
installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
The vehicle has several indicators
to warn of the engine overheating.
There is an engine coolant
temperature gauge and an engine
coolant temperature warning light on
the instrument cluster. See Engine
Coolant Temperature Gauge 0123
and Engine Coolant Temperature
Warning Light 0132. The vehicle
may also display a message on the
Driver Information Center (DIC).
See Engine Cooling System
Messages 0142.
Page 269 of 339

Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
Vehicle Care 269
Headlamps
Driver Side Shown, PassengerSide Similar
1. Headlamp
2. Turn Signal Lamp
High-Beam Headlamp/Low-Beam
Headlamp
1. Open the hood. See Hood 0251.
2. Remove the headlamp bulb access cover.
3. Turn the bulb counterclockwise and pull straight back. 4. Disconnect the wiring harness
connector from the bulb.
5. Install the new bulb in the headlamp assembly by turning
clockwise.
6. Reconnect the wiring harness connector.
7. Install the headlamp bulb access cover.
Turn Signal Lamp 1. Open the hood. See Hood 0251.
2. Remove the turn signal lamp bulb socket from the headlamp
assembly by turning
counterclockwise.
3. Remove the bulb from the bulb socket by pulling it straight out.
4. Install the new bulb in the bulb socket.
5. Install the bulb socket into the headlamp assembly by turning
clockwise.
Back-Up Lamps
1. Locate the back-up lampassembly underneath the rear
fascia.
2. Remove the bulb from the lamp assembly by turning it
counterclockwise and pulling
straight out.
3. Remove the bulb and replace.
4. Reverse Steps 2 and 3 for assembly.
Page 270 of 339
Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
270 Vehicle Care
License Plate Lamp
The LED bulb assembly is also
replaceable. For the LED bulb
assembly simply unplug the bulb
assembly after Step 2, and install
the new LED bulb assembly.
Continue installing from Step 6.
To replace one of these bulbs:1. Open the liftgate. See Liftgate 036.
Passenger Side Shown, Driver
Side Similar
2. Push the left end of the lamp assembly toward the right. 3. Turn the lamp assembly down
to remove it from the liftgate.
4. Turn the bulb socket (1)counterclockwise to remove it
from the lamp assembly (3).
5. Pull the bulb (2) straight out of the bulb socket. 6. Push the replacement bulb
straight into the bulb socket
and turn the bulb socket
clockwise to install into the
lamp assembly.
7. Turn the lamp assembly into the liftgate, engaging the clip
side first.
8. Push on the lamp side opposite the clip until the lamp assembly
snaps into place.
Page 271 of 339

Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
Vehicle Care 271
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.
To identify and check fuses, circuit
breakers, and relays, seeEngine
Compartment Fuse Block 0272,
Instrument Panel Fuse Block 0275,
and Rear Compartment Fuse
Block 0277.
Page 272 of 339
Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
272 Vehicle Care
Engine Compartment
Fuse Block
The underhood fuse block is in the
engine compartment, on the driver
side of the vehicle.
Caution
Do not pull the engine
compartment fuse block lever,
since it is intended only for
service purposes. If pulled,
vehicle malfunction may occur.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
To remove the fuse block cover,
press the clips on the cover and lift
it straight up.
Page 273 of 339
Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
Vehicle Care 273
Engine Compartment Fuse Block
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Fuses Usage
F1 ABS pump Fuses Usage
F2 Starter 1
F3 DC DC transformer 1
F4 –
F5 –
F6 –
F7 DC DC transformer 2
F8 Starter 3
F9 –
F10 –
F11 –
F12 Front wiper
F13 Starter 2
F14 LED/Automatic headlamp leveling (if
equipped)
F15 Rear wiper 1
F16 –
F17 –
F18 Automatic headlamp leveling (if equipped)
F19 –
Page 274 of 339

Cadillac XT5 Owner Manual (GMNA-Localizing-MidEast-10260744) - 2017 -
crc - 1/14/16
274 Vehicle Care
FusesUsage
F20 –
F21 –
F22 Electronic brake control module
F23 Parking/Trailer lamps
F24 Right trailer stoplamp/Turnlamp
F25 Steering column lock
F26 –
F27 Left trailer stoplamp/ Turnlamp
F28 –
F29 –
F30 Washer pump
F31 Right low-beam headlamp
F32 Left low-beam headlamp
F33 Fog lamps
F34 Horn
F35 – Fuses
Usage
F36 Left high-beam headlamp
F37 Right high-beam headlamp
F38 Automatic headlamp leveling (if equipped)
F39 Transmission control module 1
F40 Left rear bus electrical center/
Ignition
F41 Instrument cluster
F42 HVAC
F43 Head-up display (if equipped)
F44 –
F45 –
F46 –
F47 –
F48 Rear wiper 2
F49 Interior rearview mirror/Trailer Fuses
Usage
F50 Fuel system control module
F51 Heated steering wheel
F52 A/C clutch
F53 Transmission range control module
F54 Coolant pump
F55 –
F56 –
F57 Engine control module/Ignition
F58 Transmission control module/Ignition
F59 Engine control module battery
F60 Transmission control module 2
F61 O2 sensor 1/ Aeroshutter
F62 Engine control module–odd
F63 O2 sensor 2