Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
DRIVING AND OPERATING 235
clutch pedal down to the floor,
press the brake pedal, then press
ENGINE START/STOP.
If the remote key is not in the
vehicle, if there is interference, or if
the remote key battery is low, a
Driver Information Center (DIC)
message will display. SeeRemote
Keyless Entry (RKE) System
Operation 07.
Caution
Cranking the engine for long
periods of time, by pressing
ENGINE START/STOP immediately
after cranking has ended, can
overheat and damage the cranking
motor, and drain the battery. Wait
at least 15 seconds between each
try, to let the cranking motor
cool down.
2. If the engine does not start after five to 10 seconds, especially in
very cold weather (below −18 °C or
0 °F), it could be flooded with too
much gasoline. Try pushing the
accelerator pedal all the way to the
floor and hold it there, then press ENGINE START/STOP for up to a
maximum of 15 seconds. Wait at
least 15 seconds between each try,
to allow the cranking motor to cool
down. When the engine starts, let
go of the button and the
accelerator. If the vehicle starts
briefly but then stops again, do the
same thing. This clears the extra
gasoline from the engine. Do not
race the engine immediately after
starting it. Operate the engine and
transmission gently until the oil
warms up and lubricates all
moving parts.
Stopping the Engine
If the vehicle has an automatic
transmission, move the shift lever to
P (Park) and press and hold ENGINE
START/STOP on the instrument panel,
until the engine shuts off. If the shift
lever is not in P (Park), the engine
shuts off and the ignition goes to
ACC/ACCESSORY. The DIC displays
SHIFT TO PARK. Once the shift lever
is moved to P (Park), the vehicle
turns off.
If the vehicle has a manual
transmission, before getting out of the
vehicle, shift to 1 (First) or R (Reverse)
and apply the parking brake. Then
turn off the ignition off by pressing
ENGINE START/STOP and release the
clutch pedal when the engine has
stopped.
If the remote key is not detected
inside the vehicle when it is turned off
the DIC displays a message.
Stop/Start System
If equipped, the Stop/Start system will
shut off the engine to help conserve
fuel. It has components designed for
the increased number of starts.
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit the vehicle before shifting
to P (Park). The vehicle may restart
and move unexpectedly. Always
shift to P (Park), and then turn the
ignition off before exiting the
vehicle.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
324 VEHICLE CARE
Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM certified
parts, including control module or
software modifications, is not covered
under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle using
genuine GM Accessories installed by a
dealer technician.
Also, seeAdding Equipment to the
Airbag-Equipped Vehicle 058.Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have the
proper knowledge, 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 0437.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 058. If equipped with remote vehicle start,
open the hood before performing any
service work to prevent remote
starting the vehicle accidentally. See
Remote Vehicle Start
013.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0421.
Caution
Even small amounts of
contamination can cause damage to
vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/
start, turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others could
be injured.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 327
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0343.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 338.
3. Engine Air Cleaner/Filter 0336.
4. Engine Cooling Fan (Out of View). See Cooling System 0338.
5. Engine Oil Fill Cap. See Engine Oil
0 331.
6. Engine Oil Dipstick. See Engine Oil
0 331.
7. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0390.
8. Brake Fluid Reservoir. See Brake
Fluid 0348.
9. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0390.
10. Engine Compartment Fuse Block
0356.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 329
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0343.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 338.
3. Engine Air Cleaner/Filter 0336.
4. Engine Cooling Fan (Out of View). See Cooling System 0338.
5. Engine Oil Fill Cap. See Engine Oil
0 331.
6. Cooling System Air Bleeder Cap. See Cooling System 0338.
7. Engine Oil Dipstick. See Engine Oil
0 331.
8. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0390.
9. Brake Fluid Reservoir. See Brake
Fluid 0348.
10. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0390.
11. Engine Compartment Fuse Block. SeeEngine Compartment Fuse Block
0356.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 331
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0343.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 338.
3. Engine Air Cleaner/Filter 0336.
4. Engine Cooling Fan (Out of View). See Cooling System 0338.
5. Engine Oil Fill Cap. See Engine Oil
0 331.
6. Engine Oil Dipstick. See Engine Oil
0 331.
7. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0390.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid 0348.
9. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0390.
10. Engine Compartment Fuse Block. See Engine Compartment Fuse Block
0 356.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 0333.
.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 Overview 0326 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.
Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the
engine oil level after the engine has
been off for at least two hours.
Checking the engine oil level on
steep grades or too soon after
engine shutoff can result in
incorrect readings. Accuracy
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 391
{Warning
Batteries can hurt you. They can be
dangerous because:
.They contain acid that can
burn you.
.They contain gas that can
explode or ignite.
.They contain enough electricity
to burn you.
If you do not follow these steps
exactly, some or all of these things
can hurt you.
Caution
Ignoring these steps could result in
costly damage to the vehicle that
would not be covered by the vehicle
warranty. Trying to start the vehicle
by pushing or pulling it will not
work, and it could damage the
vehicle.
3.6L V6 Shown, 2.0L L4 Engine and 2.7L L4 Engine Similar
1. Discharged Battery Remote
Positive Terminal
2. Discharged Battery Negative Grounding Terminal
3. Good Battery Negative Terminal
4. Good Battery Positive Terminal
The jump start positive terminal (4)
and negative post (3) are on the
battery of the vehicle providing the
jump start. The jump start remote positive
terminal (1) and the remote negative
grounding terminal (2) for the
discharged battery are on the
passenger side of the vehicle.
The positive jump start connection for
the discharged battery is under a
cover. Lift the cover to expose the
terminal.
1. Check the other vehicle. It must have a 12-volt battery with a
negative ground system.
Caution
If the other vehicle does not have a
12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so that they are not touching.
3. Set the parking brake firmly and put the shift lever in P (Park) with
an automatic transmission,
or Neutral with a manual
transmission.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
392 VEHICLE CARE
Caution
If any accessories are left on or
plugged in during the jump starting
procedure, they could be damaged.
The repairs would not be covered
by the vehicle warranty. Whenever
possible, turn off or unplug all
accessories on either vehicle when
jump starting.
4. Turn the ignition off. Turn off all lights and accessories in both
vehicles, except the hazard warning
flashers if needed.
{Warning
An electric fan can start up even
when the engine is not running and
can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode. People
have been hurt doing this, and
some have been blinded. Use a
flashlight if you need more light.
Battery fluid contains acid that can
burn you. Do not get it on you.
If you accidentally get it in your
eyes or on your skin, flush the place
with water and get medical help
immediately.
{Warning
Fans or other moving engine parts
can injure you badly. Keep your
hands away from moving parts
once the engine is running.
5. Connect one end of the red positive (+) cable to the remote
positive (+) terminal on the
discharged battery. 6. Connect the other end of the red
positive (+) cable to the positive (+)
terminal of the good battery.
7. Connect one end of the black negative (–) cable to the
negative (–) terminal of the good
battery.
Do not let the other end touch
anything until the next step. The
other end of the negative (–) cable
does not go to the dead battery.
It goes to a heavy, unpainted metal
engine part.
8. Connect the other end of the black negative (–) cable to the
negative (–) grounding point for the
discharged battery.
9. Start the engine in the vehicle with the good battery and run the
engine at idle speed for at least
four minutes.
10. Try to start the vehicle that had the dead battery. If it will not start
after a few tries, it probably needs
service.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
ONSTAR 443
App updates require a
corresponding service plan. Features
vary by region and model. Features
are subject to change. For more
information, see my.cadillac.com/
learn or press
Q.
Or
.Give OnStar Turn-by-Turn
Navigation voice commands.
.Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an Advisor to:
.Verify account information or
update contact information.
.Get driving directions.
.Receive a Diagnostic check of the
vehicle's key operating systems.
.Receive Roadside Service.
.Manage Wi-Fi Settings, if equipped.
Press
>to get a priority connection
to an OnStar Advisor available 24/7 to:
.Get help for an emergency.
.Be a Good Samaritan or respond to
an AMBER Alert.
.Get assistance in severe weather or
other crisis situations and find
evacuation routes.
OnStar Services
Emergency
Emergency Services require an active
safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor who
is immediately connected in to the
vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and relay
important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis. With Roadside Service, Advisors can
locate a nearby service provider to
help with a flat tire, a battery jump,
or an empty gas tank.
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
.With Remote Ignition Block,
if equipped, OnStar can block the
vehicle from being restarted.
.With Stolen Vehicle Slowdown,
if equipped, OnStar can work with
law enforcement to gradually slow
the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the vehicle.