2023 CADILLAC LYRIC warning

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.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 323
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.
LED Lighting
This vehicle has several LED
lamps. For replacement of any
LED lighting assembly, contact
your dealer.
Electrical System
High Voltage Devices
and Wiring
{Warning
Exposure to high voltage
can cause shock, burns, and
even death. The high voltage
components in the vehicle
can only be serviced by
technicians with special
training.
High voltage components
are identified by labels. Do
not remove, open, take
apart, or modify these
components. High voltage
cable or wiring has orange
covering or labels. Do not
probe, tamper with, cut,
or modify high voltage cable
or wiring.
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 the wires that provide
the power to the devices in
your vehicle.
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.

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)

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
326 Vehicle Care
Warning (Continued)
or others could be injured or
killed, and the vehicle could
be damaged.
See Accessories and
Modifications 0308 and
General Information 0308.
To check or replace a blown
fuse, see Electrical System
Overload 0323.
Underhood
Compartment Fuse
Block
To Access:
1. Open the hood. See Hood
0310.
2. The Underhood
Compartment Fuse Block is
under a cover and side
extension/shield in the
underhood compartment.
Unclip right side of shield
and remove the right side
access cover.3. To open the fuse blockcover, press the clips at the
side and back and pull the
cover up.
Caution
Spilling liquid on any
electrical component on the
vehicle may damage it.
Always keep the covers on
any electrical component.

Cadillac Lyriq Owner Manual (GMNA-Localizing-U.S./Canada-15644413) -
2023 - CRC - 2/23/22
Vehicle Care 335
{Warning
.Poorly maintained and
improperly used tires
are dangerous.
.Overloading the tires
can cause overheating
as a result of too much
flexing. There could be
a blowout and a serious
crash. See Vehicle Load
Limits0202.
.Underinflated tires
pose the same danger
as overloaded tires. The
resulting crash could
cause serious injury.
Check all tires
frequently to maintain
the recommended
pressure. Tire pressure
should be checked
when the tires are cold.
(Continued)
Warning (Continued)
.Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact —such
as when hitting a
pothole. Keep tires at
the recommended
pressure.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired
tires can cause a crash.
Only your dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
(Continued)
Warning (Continued)
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.
All-Season Tires
This vehicle may come with
all-season tires. These tires
are designed to provide good
overall performance on most
road surfaces and weather
conditions. Original equipment
tires designed to GM's specific
tire performance criteria have
a TPC specification code
molded onto the sidewall.
Original equipment all-season
tires can be identified by the
last two characters of this
TPC code, which will be “MS.”
Consider installing winter tires
on the vehicle if frequent
driving on snow or ice-covered