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Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Driving and Operating 287
5. Plug in the AC charge cordinto the vehicle charge port.
Make sure the AC vehicle
plug is fully connected to
the AC charge port. If it is
not properly connected, the
vehicle may not be charged.
6. Verify that the charge status light turns on and an
audible chirp occurs. See
Charging Status Feedback
0289.
To End AC Charging 1. Unlock the charge cord from the vehicle by pressing
the button on the top of the
charge cord plug. Unplug
the charge cord from the
vehicle.
2. Close the charge port door by pressing firmly in the
center until it latches.
3. Unplug the charge cord from the electrical outlet.
4. Place the charge cord into the storage compartment.DC Charging
DC Charging Station
Hardware
The vehicle can be charged
using DC charging equipment
typically found at service
stations and other public
locations.
Check the charging station DC
vehicle plug for compatibility
with the DC charge port on
this vehicle. This vehicle is
compatible with a Combined
Charging System 1 (CCS1)
connector.
When recharging at a DC
charge station, the charging
cable connected to the vehicle
must be less than 10 m (33 ft)
in length to meet functionality
and regulatory requirements.
Follow the steps listed on the
charging station to perform a
DC vehicle charge.
If for any reason DC charging
does not begin or is
interrupted, check the DC
charging station display for messages. Unplug the cord to
restart the DC charging
process.
To Start DC Charging
1. Put the vehicle in P (Park).
2. Press the Electric Parking brake (EPB) switch. See
Electric Parking Brake 0217.
3. Push the rearward edge of
the charge port door and
release to open the door.
In cold weather conditions,
ice may form around the
charge port door. The
charge port door may not
open on the first attempt.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
288 Driving and Operating
Remove ice from the area
and repeat attempting to
open the charge port door.
4. Unlatch the DC chargingdust cover and lower it fully.
5. Plug in the DC charge cord into the vehicle charge port.
Make sure that the DC
vehicle plug is fully
connected to the DC charge
port. If it is not properly
connected, the vehicle may
not be charged. Check the
Driver Information Center
(DIC) to make sure the
vehicle plug is connected
properly. 6. Follow the steps listed on
the charging station to start
charging.
7. When charging is active, the DC vehicle plug is locked to
the DC charge port and
cannot be disconnected.
8. Verify that the charge status light turns on and an
audible chirp occurs. See
Charging Status Feedback
0289.
Caution
Do not attempt to
disconnect the DC vehicle
plug while charging is active.
This action may damage the
vehicle or charging station
hardware.
To Stop DC Charging —
Automatic
When the vehicle no longer
needs power from the
charging station, it stops
charging and the DC vehicle
plug unlocks from the DC
charge port. Energy can still be consumed
from the charging station
when the vehicle displays and
indicators show that the
battery is fully charged. This is
to ensure the battery is in
optimal temperature operating
range to maximize vehicle
range. See Charging
0123.
To End DC Charging 1. Wait until the charging process has fully stopped,
the DC vehicle plug is
unlocked, and the charging
status indicator is solid
green or off.
If the vehicle plug does not
unlock from the vehicle
charge port after a charge,
contact Roadside Service.
See Roadside Service 0388.
2. Unplug the DC vehicle plug from the DC charge port on
the vehicle and close the
dust cover.
3. Close the charge port door by pressing firmly in the
center until it latches.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
294 Driving and Operating
Verify the charge cord status.
The charge cord uses a
combination of red, blue, and
yellow indicators to display the
status of the charge cord.
If the status indicator is not lit,
ensure the electrical outlet
has power.
Charge Level Selection
Charge level selection can be
made using the Charging tab
in the Energy Application on
the infotainment display. For
instructions to set cord limit
settings for a charge session,
see Charging0123.
{Warning
Using a charge level that
exceeds the electrical circuit
or electrical outlet capacity
may start a fire or damage
the electrical circuit. Use the
lowest charge level until a
qualified electrician inspects
the electrical circuit
capacity. Use the lowest
(Continued)
Warning (Continued)
charge level if the electrical
circuit or electrical outlet
capacity is not known.
Grounding Instructions
The charge circuit must be
grounded. If the charge circuit
should malfunction or break
down, grounding provides a
path of least resistance for
the electric current to reduce
the risk of electric shock. This
product is equipped with a
cord that has an equipment
grounding conductor and a
grounding plug. The plug must
be plugged into an appropriate
outlet that is properly installed
and grounded in accordance
with all local codes and
ordinances.
{Warning
Improper connection of the
charge cord ground may
cause electrical shock.(Continued)
Warning (Continued)
Check with a qualified
electrician if there is doubt
as to whether the charge
circuit is properly grounded.
Do not modify the plug
provided with the product.
If it will not fit the electrical
outlet, have a proper
electrical outlet installed by
a qualified electrician.
FCC Information
See Radio Frequency
Statement0395.
Utility Interruption of
Charging
This vehicle responds to
requests through the utility
company to limit or completely
block electrical power grid use.
This feature is inactive during
DC charging. A utility
interruption will lengthen the
vehicle charge time.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Driving and Operating 295
When electrical grid power is
completely blocked, the
vehicle will not charge until the
utility interruption has expired.
The vehicle should be left
plugged in so that the vehicle
will automatically resume
charging.
Changing the charge mode to
Charge Now or performing a
delayed charging override will
not disable a utility
interruption.
A message will display on the
instrument cluster indicating
that a utility interruption has
occurred.
Electrical
Requirements for
Battery Charging
This vehicle is compatible with
most vehicle charging
equipment that complies with
one or more of the following
standards:
.SAE J1772
.SAE J2847-2
.IEC 61851-1
.IEC 61851-22
.IEC 61851-23
.IEC 61851-24
.IEC 62196-1
.IEC 62196-2
.IEC 62196-3
The portable charge cord
requires a circuit capacity as
follows:
Minimum : 120 volt system –
15 amps
Maximum : 240 volt system –
50 amps
Caution
Do not use portable or
stationary backup
generating equipment to
charge the vehicle. This may
cause damage to the
vehicle's charging system.
Only charge the vehicle from
utility supplied power.
Trailer Towing
General Towing
Information
Only use towing equipment
that has been designed for the
vehicle. Contact your dealer or
trailering dealer for assistance
with preparing the vehicle to
tow a trailer. Read the entire
section before towing a trailer.
To tow a disabled vehicle, see
Transporting a Disabled
Vehicle 0359. To tow the
vehicle behind another vehicle
such as a motor home, see
Recreational Vehicle Towing
0 362.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
304 Driving and Operating
contacting the road if it
becomes separated from the
hitch. Always leave just
enough slack so the
combination can turn. Never
allow safety chains to drag on
the ground.
Trailer Brakes
Loaded trailers over 450 kg
(1,000 lb) must be equipped
with brake systems and with
brakes for each axle. Trailer
braking equipment conforming
to Canadian Standards
Association (CSA) requirement
CAN3-D313, or its equivalent,
is recommended.
State or local regulations may
require trailers to have their
own braking system if the
loaded weight of the trailer
exceeds certain minimums
that can vary from state to
state. Read and follow the
instructions for the trailer
brakes so they are installed,
adjusted, and maintained
properly. Never attempt to tap
into your vehicle's hydraulicbrake system. If you do, both
the vehicle anti-lock brakes
and the trailer brakes may not
function, which could result in
a crash.
Trailer Lamps
Always check that 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.
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.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 307
Vehicle Care
General Information
General Information . . . . . . 308
California PerchlorateMaterials
Requirements . . . . . . . . . . . . . 308
Accessories and Modifications . . . . . . . . . . . . . 308
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . 309
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Underhood Compartment Overview . . . . . . . . . . . . . . . . . . . . 312
Cooling System . . . . . . . . . . . . . 313
Washer Fluid . . . . . . . . . . . . . . . . 314
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . 315
Brake Fluid . . . . . . . . . . . . . . . . . . . 316
Battery - North America . . . . . . . . . . . . . . . . . . . . . . 317
Park Brake and P (Park) Mechanism Check . . . . . . . 320
Wiper Blade Replacement . . . . . . . . . . . . . . 320
Windshield Replacement . . . . . . . . . . . . . . . 321
Gas Strut(s) . . . . . . . . . . . . . . . . . . 321
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . 322
Bulb Replacement
Bulb Replacement . . . . . . . . . 323
LED Lighting . . . . . . . . . . . . . . . . 323
Electrical System
High Voltage Devices andWiring . . . . . . . . . . . . . . . . . . . . . . . 323
Electrical System Overload . . . . . . . . . . . . . . . . . . . . 323
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 325
Underhood Compartment Fuse Block . . . . . . . . . . . . . . . . . 326
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . 331
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
All-Season Tires . . . . . . . . . . . 335
Winter Tires . . . . . . . . . . . . . . . . 336
Self-Sealing Tires . . . . . . . . . 336
Low-Profile Tires . . . . . . . . . . 337
Tire Sidewall Labeling . . . . 337
Tire Designations . . . . . . . . . . 338
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . 339
Tire Pressure . . . . . . . . . . . . . . . 342 Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . . . . 343
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . 344
Tire Inspection . . . . . . . . . . . . . 347
Tire Rotation . . . . . . . . . . . . . . . 348
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . 349
Buying New Tires . . . . . . . . . 350
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 352
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 352
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . 354
Wheel Replacement . . . . . . 354
Tire Chains . . . . . . . . . . . . . . . . . . 355
If a Tire Goes Flat . . . . . . . . . 355
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . 356
Towing the Vehicle
Transporting a DisabledVehicle . . . . . . . . . . . . . . . . . . . . . . 359
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . . . 362

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
308 Vehicle Care
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 364
Interior Care . . . . . . . . . . . . . . . . 369
Floor Mats . . . . . . . . . . . . . . . . . . . 373General
Information
For service and parts needs,
visit your dealer. You will
receive genuine GM parts and
GM-trained and supported
service people.
Genuine GM parts have one of
these marks:
California Perchlorate
Materials
Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt
pretensioners, and lithium
batteries contained in
electronic keys, may contain
perchlorate materials.
Perchlorate Material–special
handling may apply. See
www.dtsc.ca.gov/
hazardouswaste/perchlorate.
Accessories and
Modifications
Adding non-dealer accessories
or making modifications to the
vehicle can affect vehicle
performance and safety,
including such things as
airbags, braking, stability, ride
and handling, emissions
systems, aerodynamics,
durability, Driver Assistance
Systems, and electronic
systems like antilock brakes,

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 311
2. Release the handle, thenpull the handle again to fully
open the hood.
3. Go to the front of the vehicle and lift the
hood open. To close the hood:
1. Be sure all filler caps are on properly, and all tools are
removed.
2. Lower the hood down until the strut system is no
longer holding up the hood.
3. Allow the hood to fall. Check to make sure the hood is
latched completely. Repeat
this process with additional
force if necessary.
4. If the hood does not latch, a message will display on the
Driver Information Center
(DIC) indicating the vehicle
will not shift out of (P) Park.
To override this function,
press and hold the brake
pedal until override
completion message is
displayed on DIC.
{Warning
Do not drive the vehicle if
the hood is not latched
completely. The hood could
open fully, block your vision,
and cause a crash. You or
others could be injured.
Always close the hood
completely before driving.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
324 Vehicle Care
To check a fuse, look at the
band inside the fuse. If the
band is broken or melted,
replace the fuse. Be sure to
replace a bad fuse with a fuse
of the identical size and rating.
Replacing a Blown Fuse
1. Turn off the vehicle.
2. Locate the fuse puller in theunderhood compartment
fuse block.
3. Use the fuse puller toremove the fuse from the
top or side, as shown above.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 325
4. If the fuse must be replacedimmediately, borrow a
replacement fuse with the
same amperage from the
fuse block. Choose a vehicle
feature that is not needed
to safely operate the
vehicle. Repeat Steps 2–3.
5. Insert the replacement fuse into the empty slot of the
blown fuse.
At the next opportunity, see
your dealer to replace the
blown fuse.
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.
{Danger
Fuses and circuit breakers
are marked with
their ampere rating. Do not
exceed the
specified amperage rating
when replacing fuses and
circuit breakers. Use of an
oversized fuse or circuit
breaker can result in a
vehicle fire. You and others
could be seriously injured or
killed.
{Warning
Installation or use of fuses
that do not meet GM’s
original fuse specifications is
dangerous. The fuses could
fail, and result in a fire. You (Continued)