2019 CADILLAC XT5 turn signal

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146119) - 2019 - crc - 7/27/18
250 DRIVING AND OPERATING
The seven-wire harness contains the
following trailer circuits:Stop/Turn
Signal Left Yellow/Blue
Stop/Turn Signal
Right Green/Brown
Tail/Parking
Lamps Gray/Brown
Reverse Lamps White/Green
Battery Feed Red/Green
Ground Black
Electric Trailer
Brake* Blue
* Circuit powered by electric trailer
brake control wiring provisions.
Electric Trailer Brake Control
Wiring Provisions
Wiring provisions for an aftermarket
electric trailer brake controller are
included with the vehicle as part of
the trailer wiring package. The
harness contains the following
circuits: Electric Trailer
Brakes
Blue
Battery Feed Red/Green or
Red/Blue
Brake Apply
Signal White/Blue
Ground Black
Refer to the aftermarket electric trailer
brake controller owner's manual to
determine wire color coding of the
electric trailer brake controller. The
wire colors on the brake controller
may be different from the vehicle. The
electric trailer brake controller should
be installed by your dealer or a
qualified service center.
If equipped, there are four blunt cut
wires inside the front driver side
instrument panel. It will be necessary
to have a technician connect the
12-volt power to the engine
compartment fuse block.
Trailer Lamps
Always check all trailer lamps are
working at the beginning of each trip,
and periodically on longer trips.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals will illuminate to indicate
the vehicle is turning, changing lanes,
or stopping. When towing a trailer,
the arrows on the instrument cluster
will illuminate even if the trailer is not
properly connected or the bulbs are
burned out.
Always check all trailer lamps are
working at the beginning of each trip,
and periodically on longer trips.
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic
Stability Control (ESC) have a Trailer
Sway Control (TSC) feature. Trailer
sway is unintended side-to-side
motion of a trailer while towing. If the
vehicle is towing a trailer and the TSC
detects that sway is increasing, the
vehicle brakes are selectively applied
at each wheel, to help reduce
excessive trailer sway. If equipped with
the Integrated Trailer Brake Control

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Vehicle Care
General Information
General Information . . . . . . . . . . . . . 254
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 254
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 255
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 255
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 255
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 257
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 258
Engine Oil Life System . . . . . . . . . . . 260
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Engine Air Cleaner/Filter . . . . . . . . . 262
Cooling System . . . . . . . . . . . . . . . . . . . 262
Engine Overheating . . . . . . . . . . . . . . 265
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 267
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 268
Battery - North America . . . . . . . . . 269
All-Wheel Drive . . . . . . . . . . . . . . . . . . 270 Starter Switch Check . . . . . . . . . . . . . 270
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 270
Wiper Blade Replacement . . . . . . . 271
Windshield Replacement . . . . . . . . 272
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 272
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 273
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 274
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 274
LED Lighting . . . . . . . . . . . . . . . . . . . . . 274
Headlamps and Front Turn Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Electrical System
Electrical System Overload . . . . . . 275
Fuses and Circuit Breakers . . . . . . 275
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Instrument Panel Fuse Block . . . . 279
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
All-Season Tires . . . . . . . . . . . . . . . . . . 285
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 285
Summer Tires . . . . . . . . . . . . . . . . . . . . 285
Tire Sidewall Labeling . . . . . . . . . . . 286 Tire Designations . . . . . . . . . . . . . . . . . 288
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 288
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 291
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 292
Tire Pressure Monitor System . . . 293
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 294
Tire Inspection . . . . . . . . . . . . . . . . . . . 297
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 298
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Buying New Tires . . . . . . . . . . . . . . . . 299
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Uniform Tire Quality Grading . . . 301
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Wheel Replacement . . . . . . . . . . . . . . 303
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 304
If a Tire Goes Flat . . . . . . . . . . . . . . . . 304
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 306
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 312
Tire Changing . . . . . . . . . . . . . . . . . . . . . 313
Compact Spare Tire . . . . . . . . . . . . . . 318

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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274 VEHICLE CARE
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing procedure
not listed in this section, contact your
dealer.
Caution
Do not replace incandescent bulbs
with aftermarket LED replacement
bulbs. This can cause damage to
the vehicle electrical system.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized gas
inside and can burst if you drop or
scratch the bulb. You or others
could be injured. Be sure to read
and follow the instructions on the
bulb package.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Headlamps and Front Turn
Signal
Uplevel Headlamp Assembly
The uplevel headlamp has LED lamps.
For headlamp replacement, contact
your dealer.Base level Assembly
Driver Side Shown, Passenger Side
Similar
1. Headlamp
2. Turn Signal Lamp
High-Beam Headlamp/Low-Beam
Headlamp
1. Open the hood. See Hood0256.
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.

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5. Install the new bulb in theheadlamp assembly by turning
clockwise.
6. Reconnect the wiring harness connector.
7. Install the headlamp bulb access cover.
Turn Signal Lamp
For turn signal lamp replacement,
contact your dealer.
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

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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278 VEHICLE CARE
FusesUsage
F22 Electronic brake control module
F23 Parking/Trailer lamps
F24 Right trailer stoplamp/Turn
signal lamp
F25 Steering column lock
F26 –
F27 Left trailer stoplamp/ Turn signal lamp
F28 –
F29 –
F30 Washer pump
F31 Headlamp low-beam –right
F32 Headlamp low-beam –left
F33 Fog lamps
F34 Horn
F35 –
F36 Headlamp high-beam –left Fuses
Usage
F37 Headlamp high-beam –right
F38 Automatic headlamp leveling motor
F39 Transmission control module 1
F40 Left rear bus electrical center/Ignition
F41 Instrument cluster
F42 Heating, ventilation, and air conditioning
F43 Head-up display
F44 –
F45 –
F46 –
F47 –
F48 Rear wiper 2
F49 Interior rearview mirror/Trailer
F50 Fuel system control module
F51 Heated steering wheel Fuses
Usage
F52 Air conditioning 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
F64 Engine control module–even

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 295
TPMS Malfunction Light and
Message
The TPMS will not function properly if
one or more of the TPMS sensors are
missing or inoperable. When the
system detects a malfunction, the low
tire pressure warning light flashes for
about one minute and then stays on
for the remainder of the ignition cycle.
A DIC warning message also displays.
The malfunction light and DIC
warning message come on at each
ignition cycle until the problem is
corrected. Some of the conditions that
can cause these to come on are:
.One of the road tires has been
replaced with the spare tire. The
spare tire does not have a TPMS
sensor. The malfunction light and
DIC message should go off after
the road tire is replaced and the
sensor matching process is
performed successfully. See “TPMS
Sensor Matching Process ”later in
this section.
. The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The malfunction light and the DIC message should
go off after successfully
completing the sensor matching
process. See "TPMS Sensor
Matching Process" later in this
section.
. One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and
the sensor matching process is
performed successfully. See your
dealer for service.
. Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended
could prevent the TPMS from
functioning properly. See Buying
New Tires 0299.
. Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction. If the TPMS is not functioning
properly it cannot detect or signal a
low tire pressure condition. See your
dealer for service if the TPMS
malfunction light and DIC message
come on and stay on.
Tire Fill Alert (If Equipped)
This feature provides visual and
audible alerts outside the vehicle to
help when inflating an underinflated
tire to the recommended cold tire
pressure.
When the low tire pressure warning
light comes on:
1. Park the vehicle in a safe, level place.
2. Set the parking brake firmly.
3. Place the vehicle in P (Park).
4. Add air to the tire that is underinflated. The turn signal
lamp will flash.
When the recommended
pressure is reached, the horn
sounds once and the turn signal
lamp will stop flashing and
briefly turn solid.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146119) - 2019 - crc - 7/27/18
296 VEHICLE CARE
Repeat these steps for all
underinflated tires that have
illuminated the low tire pressure
warning light.
{Warning
Overinflating a tire could cause the
tire to rupture and you or others
could be injured. Do not exceed the
maximum pressure listed on the
tire sidewall.
SeeTire Sidewall Labeling 0286 and
Vehicle Load Limits 0183.
If the tire is overinflated by more than
35 kPa (5 psi), the horn will sound
multiple times and the turn signal
lamp will continue to flash for several
seconds after filling stops. To release
and correct the pressure, while the
turn signal lamp is still flashing,
briefly press the center of the valve
stem. When the recommended
pressure is reached, the horn
sounds once. If the turn signal lamp does not flash
within 15 seconds after starting to
inflate the tire, the tire fill alert has
not been activated or is not working.
If the hazard warning flashers are on,
the tire fill alert visual feedback will
not work properly.
The TPMS will not activate the tire fill
alert properly under the following
conditions:
.
There is interference from an
external device or transmitter.
. The air pressure from the inflation
device is not sufficient to inflate
the tire.
. There is a malfunction in
the TPMS.
. There is a malfunction in the horn
or turn signal lamps.
. The identification code of the
TPMS sensor is not registered to
the system.
. The battery of the TPMS sensor
is low. If the tire fill alert does not operate
due to TPMS interference, move the
vehicle about 1 m (3 ft) back or
forward and try again. If the tire fill
alert feature is not working, use a tire
pressure gauge.TPMS Sensor Matching Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or more
of the TPMS sensors. The TPMS
sensor matching process should also
be performed after replacing a spare
tire with a road tire containing the
TPMS sensor. The malfunction light
and the DIC message should go off at
the next ignition cycle. The sensors
are matched to the tire/wheel
positions, using a TPMS relearn tool,
in the following order: driver side
front tire, passenger side front tire,
passenger side rear tire, and driver
side rear. See your dealer for service or
to purchase a relearn tool. A TPMS
relearn tool can also be purchased.

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See Tire Pressure Monitor Sensor
Activation Tool at
www.gmtoolsandequipment.com or
call 1-800-GM TOOLS
(1-800-468-6657).
There are two minutes to match the
first tire/wheel position, and
five minutes overall to match all four
tire/wheel positions. If it takes longer,
the matching process stops and must
be restarted.
The TPMS sensor matching process is:1. Set the parking brake.
2. Place the vehicle in Service Mode. See Ignition Positions
0 187.
3. Make sure the Tire Pressure info display option is turned on. The
info displays on the DIC can be
turned on and off through the
Options menu. See Driver
Information Center (DIC) 0140.
4. Use the five-way DIC control on the right side of the steering
wheel to scroll to the Tire Pressure screen under the DIC
info page. See
Driver Information
Center (DIC) 0140.
5. Press and hold SEL in the center of the five-way DIC control.
The horn sounds twice to signal
the receiver is in relearn mode
and the TIRE LEARNING ACTIVE
message displays on the DIC
screen.
6. Start with the driver side front tire.
7. Place the relearn tool against the tire sidewall, near the valve stem.
Then press the button to activate
the TPMS sensor. A horn chirp
confirms that the sensor
identification code has been
matched to this tire and wheel
position.
8. Proceed to the passenger side front tire, and repeat Step 7.
9. Proceed to the passenger side rear tire, and repeat Step 7.
10. Proceed to the driver side rear tire, and repeat Step 7. The horn
sounds two times to indicate the sensor identification code has
been matched to the driver side
rear tire, and the TPMS sensor
matching process is no longer
active. The TIRE LEARNING
ACTIVE message on the DIC
display screen goes off.
11. Turn the vehicle off.
12. Set all four tires to the recommended air pressure level
as indicated on the Tire and
Loading Information label.
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected for
signs of wear or damage at least
once a month.
Replace the tire if:
.The indicators at three or more
places around the tire can
be seen.
.There is cord or fabric showing
through the tire's rubber.