warning CADILLAC LYRIC 2023 Owners Manual

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
310 Vehicle Care
Warning (Continued)
.Allow the wheels to rotate
unexpectedly in either
direction regardless of
mode selection.
.Allow the wheels to rotate
in reaction to attempts to
rotate the tire(s) manually.
.Resist attempts to rotate
the wheels manually.
Before lifting the vehicle to
do your own service work,
turn the vehicle off or place
the vehicle in the Service
Mode. To place the vehicle in
Service Mode, with the
vehicle off and the brake
pedal not applied, press and
hold POWER for more than
five seconds.
{Warning
It can be dangerous to work
on your vehicle if you do not
have the proper knowledge, (Continued)
Warning (Continued)
service manual, tools,
or parts. Always follow
owner’s manual procedures
and consult the service
manual for your vehicle
before doing any
service work.
If doing some of your own
service work, use the proper
service manual. It tells you
much more about how to
service the vehicle than this
manual can. To order the
proper service manual, see
Publication Ordering
Information 0394.
This vehicle has an airbag
system. Before attempting to
do your own service work, see
Servicing the Airbag-Equipped
Vehicle 071.
Keep a record with all parts
receipts and list the mileage
and the date of any service
work performed. See
Maintenance Records 0381.
Hood
{Warning
Components under the hood
can get hot. To help avoid
the risk of burning
unprotected skin, never
touch these components
until they have cooled, and
always use a glove or towel
to avoid direct skin contact.
To open the hood: 1. Pull the hood release handle on the lower left side of the
instrument panel.

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
Vehicle Care 315
Caution (Continued)
damage the washer fluid
tank and other parts of
the washer system.
.When using concentrated
washer fluid, follow the
manufacturer instructions
for adding water.
.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 linings have built-in
wear indicators that make a
high-pitched warning sound
when the brake linings are
worn and new linings 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 crash.
When the brake wear
warning sound is heard,
have the vehicle serviced.
Caution
Continuing to drive with
worn-out brake linings could
result in costly brake repairs.
Some driving conditions or
climates can cause a brake
squeal when the brakes are
first applied, clearing up
following several applications.
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
linings for wear and evenly
tighten wheel nuts in the proper sequence to torque
specifications. See Capacities
and Specifications
0383.
Brake pads should be replaced
as complete axle sets.
Brake Pedal Travel
See your dealer if the brake
pedal does not return to
normal height, or if there is a
rapid increase in pedal travel.
This could be a sign that brake
service may be required.
Replacing Brake System
Parts
Always replace brake system
parts with new, approved
replacement parts. If this is
not done, the brakes may not
work properly. The braking
performance can change in
many ways if the wrong brake
parts are installed or if parts
are improperly installed.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
316 Vehicle Care
Brake Fluid
The brake master cylinder
reservoir is filled with GM
approved DOT 4 brake fluid as
indicated on the reservoir cap.
See Underhood Compartment
Overview0312 for the
location of the reservoir.
Checking Brake Fluid
With the vehicle in P (Park) on
a level surface, the brake fluid
level should be between the
minimum and maximum marks
on the brake fluid reservoir.
There are only two reasons
why the brake fluid level in the
reservoir may go down:
.Normal brake lining wear.
When new linings are
installed, the fluid level goes
back up.
.A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will
not work well.
Always clean the brake fluid
reservoir cap and the area
around the cap before
removing it.
Do not top off the brake fluid.
Adding fluid does not correct a
leak. If fluid is added when the
linings are worn, there will be
too much fluid when new
brake linings are installed. Add
or remove fluid, as necessary,
only when work is done on the
brake hydraulic system.
When the brake fluid falls to a
low level, the brake warning
light comes on. See Brake
System Warning Light 0115.
Brake fluid absorbs water over
time which degrades the
effectiveness of the brake
fluid. Replace brake fluid at the
specified intervals to prevent increased stopping distance.
See Maintenance Schedule
0
376.
What to Add
Use only GM approved DOT 4
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0379.
{Warning
The wrong or contaminated
brake fluid could result in
damage to the brake
system. This could result in
the loss of braking leading to
a possible injury. Always use
the proper GM approved
brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces,
the paint finish can be
damaged. Immediately wash
off any painted surface.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 317
Battery - North
America
This vehicle has a high voltage
battery and a standard 12-volt
battery.
See your dealer if either the
12-volt or high voltage battery
needs service.
12–Volt Battery
The original equipment battery
is maintenance free. Do not
remove the cap and do not
add fluid.
Refer to the replacement
number shown on the original
battery label when a new
12-volt battery is needed. The
vehicle has an Absorbent
Glass Mat (AGM) 12-volt
battery. Installation of a
standard 12-volt battery will
result in reduced 12-volt
battery life.
Some 12-volt chargers have an
AGM battery setting. This
setting limits the charge
voltage to 14.8 volts and helpsextend the battery life.
If available, use the AGM
setting when charging the
battery.
{Warning
WARNING:
Battery posts,
terminals and related
accessories can expose you
to chemicals including lead
and lead compounds, which
are known to the State of
California to cause cancer
and birth defects or other
reproductive harm. Wash
hands after handling. For
more information go to
www.P65Warnings.ca.gov.
See California Proposition
65 Warning 01.
High Voltage Battery
Only a trained service
technician should inspect, test,
or replace the high voltage
battery. The dealer has
information on how to recycle
the high voltage battery. There is also information
available at https://
www.recyclemybattery.com.
{Warning
Damage to the high voltage
battery or high voltage
system can create a risk of
electric shock, overheating,
or fire.
If the vehicle is damaged
from a moderate to severe
crash, flood, fire, or other
event, the vehicle should be
inspected as soon as
possible. Until the vehicle
has been inspected, store it
outside at least 15 m (50 ft)
from any structure or
anything that can burn.
Ventilate the vehicle by
opening a window or a door.
Contact Customer
Assistance as soon as
possible to determine
(Continued)

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
318 Vehicle Care
Warning (Continued)
whether an inspection is
needed. See Customer
Assistance Offices0386.
If the vehicle is in a crash, the
sensing system may shut
down the high voltage system.
When this occurs, the high
voltage battery is
disconnected and the vehicle
will not start. The SERVICE
VEHICLE SOON message in
the Driver Information Center
(DIC) will display. Before the
vehicle can operate again, it
must be serviced at your
dealer. If a crash occurs or an
airbag(s) inflates, see “If a
Crash Occurs” under Collision
Damage Repair 0392 and
What Will You See after an
Airbag Inflates? 065 for
additional information.
Keep the vehicle plugged in,
even when fully charged, to
keep the high voltage battery
temperature ready for the next drive. This is important
when outside temperatures
are extremely hot or cold.
Propulsion power may be
reduced in extremely cold
temperatures, or if the high
voltage battery is too cold.
The message BATTERY TOO
COLD, PLUG IN TO WARM will
display. If the message
displays, a level 2 charger is
required to heat the battery to
a minimum temperature to
enable propulsion or charging.
A vehicle cover, which can
reduce sun loading on the
vehicle and improve high
voltage battery life, is available
from your dealer.
See Radio Frequency
Statement
0395.
Federal Communications
Commission (FCC) Radiation
Exposure Statement
This equipment has been
evaluated to be installed and
operated at a minimum
distance of 5.7 cm (2.2 in) between the device and your
body. The vehicle design
ensures this distance is
maintained during normal use.
Changes or modifications to
any of these systems by other
than an authorized service
facility could void
authorization to use this
equipment.
Innovation, Science, and
Economic Development
(ISED) Radiation Exposure
Statement
This equipment complies with
RSS-102 radiation exposure
limits set forth for an
uncontrolled environment. This
equipment should be installed
and operated with a minimum
distance of 5.7 cm (2.2 in)
between the radiator and any
part of your body. The vehicle
design ensures this distance is
maintained during normal use.
Changes or modifications to
any of these systems by other
than an authorized service

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 319
facility could void
authorization to use this
equipment.
Vehicle Storage
The best way to store the
vehicle for any length of time
is to plug in the charge cord
and leave it plugged in. The
vehicle monitors and maintains
the 12-volt battery daily. It is
okay to leave the vehicle
plugged in for extended
periods of time. Once charged
to full, very little energy is
required to maintain the
12-volt battery and high
voltage battery.
If it is not possible to charge
the vehicle with the charge
cord left plugged in, be sure to
fully charge the high voltage
battery before storing. The
vehicle will stop maintenance
of the 12-volt battery if the
high voltage battery state of
charge gets too low.When storing the vehicle on a
long-term basis:
‐
Keep the high voltage
battery state of charge
at 30%.
‐ Attach an AGM/VRLA
compatible battery tender or
trickle charger to the 12-volt
battery.
‐ Keep the remote key more
than 3 m (10 ft) away from
the vehicle.
12–volt Battery
{Warning
Batteries have acid that can
burn you and gas that can
explode. You can be badly
hurt if you are not careful.
Always wear eye protection.
See Jump Starting - North
America 0356 for tips on
working around a battery
without getting hurt.
A trickle charger may be
attached to the 12-volt battery
terminals or trickle charge from the underhood remote
positive (+) and negative (–)
terminals. See Jump Starting -
North America
0356 for
location of these terminals.
Caution
The vehicle is equipped with
an AGM/VRLA 12-volt
battery, which can be
damaged by using the
incorrect type of trickle
charger. An AGM/
VRLA-compatible charger
must be used, with the
appropriate setting
selected. Follow the trickle
charger manufacturer
instructions.
With a trickle charger
connected to the 12-volt
battery, the vehicle will still
monitor the 12-volt battery
daily, but it will not use energy
from the high voltage battery
for maintenance.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
320 Vehicle Care
High Voltage Battery
After extended storage, it is
possible that the vehicle may
not operate. If this happens,
the high voltage battery may
need to be plugged in and
charged.
Park Brake and
P (Park) Mechanism
Check
{Warning
When you are doing this
check, the vehicle could
begin to move. You or
others could be injured and
property could be damaged.
Make sure there is room in
front of the vehicle in case it
begins to roll. Be ready to
apply the regular brake at
once should the vehicle
begin to move.Park on a fairly steep hill, with
the vehicle facing downhill.
Keeping your foot on the
regular brake, set the Electric
Parking Brake (EPB).
.To check the EPB's holding
ability: With the propulsion
system active and the
electric drive unit in
N (Neutral), slowly remove
foot pressure from the
regular brake pedal. Do this
until the vehicle is held by
the EPB only.
.To check the P (Park)
mechanism's holding ability:
With the propulsion system
active, shift to P (Park). Then
release the EPB and slowly
remove foot pressure from
the regular brake pedal.
Contact your dealer if service
is required.
Wiper Blade
Replacement
Windshield wiper blades
should be replaced
periodically. See the
Maintenance Schedule 0376.
Replacement blades come in
different types and are
removed in different ways. For
proper type and length, see
Maintenance Replacement
Parts 0380.
Caution
Allowing the wiper arm to
touch the windshield when
no wiper blade is installed
could damage the
windshield. Any damage that
occurs would not be
covered by the vehicle
warranty. Do not allow the
wiper arm to touch the
windshield.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 321
To replace the windshield
wiper blade:1. Pull the windshield wiper assembly away from the
windshield.
2. Press the button in themiddle of the wiper arm
connector, and pull the
wiper blade away from the
arm connector.
3. Remove the wiper blade.
4. Reverse Steps 1–3 for wiper blade replacement.
Windshield
Replacement
Driver Assistance
Systems
If the windshield needs to be
replaced and the vehicle is
equipped with a front camera
sensor for the Driver
Assistance Systems, a GM
replacement windshield is
recommended. The
replacement windshield must
be installed according to GM
specifications for proper
alignment. If it is not, error
messages may display,
or these systems may not
work properly or at all. See
your dealer for proper
windshield replacement.
Acoustic and Heated
Wiper Park (HWP)
Windshield
The vehicle is equipped with
an acoustic and HWP
windshield. If the windshield
needs replacement, make sure to use a GM compatible
acoustic and HWP windshield
to retain its features
Gas Strut(s)
Your vehicle may be equipped
with gas strut(s) to provide
assistance in lifting and
holding open the hood/trunk/
liftgate system in full open
position.
{Warning
If the gas struts that hold
open the hood, trunk, and/or
liftgate fail, you or others
could be seriously injured.
Take the vehicle to your
dealer for service
immediately. Visually inspect
the gas struts for signs of
wear, cracks, or other
damage periodically. Check
to make sure the hood/
trunk/liftgate is held open
with enough force. If struts
are failing to hold the hood/
(Continued)

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
322 Vehicle Care
Warning (Continued)
trunk/liftgate, do not
operate. Have the vehicle
serviced.
Caution
Do not apply tape or hang
any objects from gas struts.
Also do not push down or
pull on gas struts. This may
cause damage to the
vehicle.
See Maintenance Schedule
0 376.
Hood
Trunk
Liftgate
Headlamp Aiming
Front Headlamp
Aiming
Headlamp aim has been preset
and should need no further
adjustment.
If the vehicle is damaged in a
crash, the headlamp aim may
be affected. If adjustment to
the headlamps is necessary,
see your dealer.