Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 9
The mechanical key, inside the
remote key, is used for the
driver door and glove box.To remove the mechanical key,
press the button on the side
of the remote key near the
bottom, and pull the
mechanical key out. Never pull
the mechanical key out
without pressing the button.
If it becomes difficult to turn
the key, inspect the key blade
for debris. Periodically clean
with a brush or pick.
See your dealer if a new
mechanical key is needed.
Contact Roadside Assistance
if locked out of the vehicle.
See Roadside Assistance
Program
0487.
With an active OnStar or
connected service plan, an
OnStar Advisor may remotely
unlock the vehicle. See OnStar
Overview 0499.
Remote Key
See Radio Frequency
Statement 0494. If there is a decrease in the
remote key operating range:
.Check the distance. The
remote key may be too far
from the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the remote key
battery. See
“Battery
Replacement” later in this
section.
.If the remote key is still not
working correctly, see your
dealer or a qualified
technician for service.
Remote Key
Operation
The Keyless Access system
allows for vehicle entry when
the remote key is within 1 m
(3 ft). See “Keyless Access
Operation” later in this section.
The remote key functions may
work up to 60 m (197 ft) away
from the vehicle.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
184 Infotainment System
.The 12-volt battery has been
disconnected for
several days.
.The vehicle is driving in
heavy traffic where driving is
at low speeds, and the
vehicle is stopped and
started repeatedly.
Problems with Route
Guidance
Inappropriate route guidance
can occur under one or more
of the following conditions:
.The turn was not made on
the road indicated.
.Route guidance might not be
available when using
automatic rerouting for the
next right or left turn.
.The route might not be
changed when using
automatic rerouting.
.There is no route guidance
when turning at an
intersection.
.Plural names of places might
be announced occasionally.
.It could take a long time to
operate automatic rerouting
during high-speed driving.
.Automatic rerouting might
display a route returning to
the set waypoint if heading
for a destination without
passing through a set
waypoint.
.The route prohibits the
entry of a vehicle due to a
regulation by time or season
or any other regulation
which may be given.
.Some routes might not be
searched.
.The route to the destination
might not be shown if there
are new roads, if roads have
recently changed, or if
certain roads are not listed
in the map data. See Maps
0174.
To recalibrate the vehicle's
position on the map, park with
the vehicle running for two to
five minutes, until the vehicle
position updates. Make sure
the vehicle is parked in a location that is safe and has a
clear view of the sky and away
from large obstructions.
If the System Needs
Service
If the navigation system needs
service, see your dealer.
Map Data Updates
The map data in the vehicle is
the most up-to-date
information available when the
vehicle was produced. The
map data is updated
periodically, provided that the
map information has changed
and the vehicle has a relevant
service plan.
See www.gmnavdisc.com for
details on ordering,
purchasing, and installing a
new or replacement SD card.
Features are subject to
change. For more information
on this feature, visit your
brand website. See Online
Account
0486 for details.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
262 Driving and Operating
The vehicle may have an
electric steering column lock.
The lock is activated when the
vehicle is switched to OFF and
the driver door is opened.
A sound may be heard as the
lock actuates or releases. The
steering column lock may not
release with the wheels
turned off center. If this
happens, the vehicle may not
start. Move the steering wheel
from left to right while
attempting to start the
vehicle. If this does not work,
the vehicle needs service.
Do not turn the engine off
when the vehicle is moving.
This will cause a loss of power
assist in the brake and
steering systems and disable
the airbags.
If the vehicle must be shut off
in an emergency:1. Brake using a firm and steady pressure. Do not
pump the brakes
repeatedly. This may deplete power assist,
requiring increased brake
pedal force.
2. Shift the vehicle to N (Neutral). This can be
done while the vehicle is
moving. After shifting to
N (Neutral), firmly apply the
brakes and steer the
vehicle to a safe location.
3. Come to a complete stop. Shift to P (Park) with an
automatic transmission,
or Neutral with a manual
transmission. Turn the
ignition off.
4. Set the parking brake. See Electric Parking Brake
0287.
{Warning
Turning off the vehicle while
moving may cause loss of
power assist in the brake
and steering systems and
disable the airbags. While
driving, only shut the vehicle
off in an emergency. If the vehicle cannot be pulled
over, and must be shut off
while driving, press and hold
ENGINE START/STOP for
longer than two seconds,
or press twice within
five seconds.
Accessory Mode (Amber
Indicator Light) :
This mode
allows the use of some
electrical accessories when
the engine is off.
With the ignition off, pressing
the button once without the
brake pedal applied will place
the ignition system in
accessory mode.
The ignition will switch from
accessory mode to OFF after
five minutes to prevent
battery rundown.
ON/RUN/START (Green
Indicator Light) : This mode is
for driving and starting. With
the ignition off, and the brake
pedal applied, pressing the
button once will place the
ignition system in ON/RUN/
START. Once engine cranking
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
378 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer
Fluid 0393.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0386.
3. Engine Air Cleaner/Filter 0384.
4. Engine Cooling Fan (Out of View). See Cooling System
0386.
5. Engine Oil Fill Cap. See Engine Oil 0378.
6. Engine Oil Dipstick. See Engine Oil 0378.
7. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0447.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid
0398.
9. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0447. 10. Engine Compartment Fuse
Block. See Engine
Compartment Fuse Block
0407.
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 0381.
.Always dispose of engine oil
properly. See “What to Do
with Used Oil” in this section.
Checking Engine Oil
Check the engine oil level
regularly, every 650 km
(400 mi), especially prior to a
long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment
Overview0373 for the
location.
{Warning
The engine oil dipstick
handle may be hot; it could
burn you. Use a towel or
glove to touch the dipstick
handle.
If a low oil Driver Information
Center (DIC) message displays,
check the oil level.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
OnStar 499
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . 499
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . 500
Security . . . . . . . . . . . . . . . . . . . . . . . 501
OnStar Additional
Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . 501
OnStar Overview
=Voice Command Button
QBlue OnStar Button
>Red Emergency Button
This vehicle may be equipped
with a comprehensive,
in-vehicle system that can
connect to an OnStar Advisor
for Emergency, Security,
Navigation, Connections, and
Diagnostics Services. OnStar
services may require a paid
service plan and data plan.
OnStar requires the vehicle
battery and electrical system,
cellular service, and GPS
satellite signals to be available
and operating. OnStar acts as
a link to existing emergency
service providers. OnStar may
collect information about you and your vehicle, including
location information. See
OnStar User Terms, Privacy
Statement, and Software
Terms for more details
including system limitations at
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
The OnStar system status
light is next to the OnStar
buttons. If the status light is:.Solid Green: System is ready.
.Flashing Green: On a call.
.Red: Indicates a problem.
.Off: System is off. PressQ
twice to speak with an
OnStar Advisor.
Press
Qor call
1-888-4ONSTAR
(1-888-466-7827) to speak to
an Advisor.
Functionality of the Voice
Command button may vary by
vehicle and region.