transmission oil CADILLAC CT4 2023 Owners Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 111
Odometer, Speed,
Tachometer, Electronic
Transmission Range, Current
Gear, Speed Limit, Info Area,
and Interaction Area, and
Cruise Control (if engaged).
.Tour: Displays Fuel Gauge,
Fuel Range, Compass, Driver
Mode Control Light,
Odometer, Speed,
Tachometer, Electronic
Transmission Range, Current
Gear, Peak Performance,
Speed Limit, Info Area, and
Interaction Area, and Cruise
Control (if engaged).
.Stealth: Displays Fuel Gauge,
Digital Speed, and
Tachometer.
.Track: If equipped, displays
Coolant Temperature, Fuel
Gauge, Driver Mode Control
Light, Speed, Tachometer,
Electronic Transmission
Range, Current Gear, Info
Area, and Interactive Area.Preset info tiles shown on
each layout:
Sport :
Time and
Temperature, Oil
Temperature, Tire Status, Oil
Pressure
Track : Oil Pressure,
Transmission Fluid
Temperature, Tire Status, Oil
Temperature
Tour : Time and Temperature
Stealth : None
Speed Warning
The Speed Warning display
allows the driver to set a
speed that they do not want
to exceed. To set the Speed
Warning, press the
thumbwheel when Speed
Warning is displayed, or press
the thumbwheel on the main
view to set the speed value.
Scroll to adjust the value.
Press the thumbwheel to set
the speed. Once the speed is
set, this feature can be turned
off by pressing the
thumbwheel while viewing this page. If the selected speed
limit is exceeded, a pop-up
warning is displayed with a
chime.
Speed Sign
Shows sign information, which
comes from a roadway
database in the onboard
navigation, if equipped.
Units
Press the thumbwheel while
Units is displayed to enter the
Units menu. Choose US or
metric units by pressing the
thumbwheel while the desired
item is highlighted. A selected
mark will be displayed next to
the selected item.
Tachometer
If equipped, the Tachometer
allows the driver to choose
between the traditional
tachometer (linear gauge) or
the numerical tachometer
(shift lights with numerical
Tachometer RPM) when Track
theme is selected.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
132 Instruments and Controls
based on the various vehicle
speeds recorded since the last
reset. Reset the average
speed by pressing the
thumbwheel while this display
is active to show a
confirmation window to select
yes or no.
Timer :This display can be
used as a timer. To start the
timer, press the thumbwheel
while this display is active. The
display will show the amount
of time that has passed since
the timer was last reset. To
stop the timer, press the
thumbwheel briefly while this
display is active and the timer
is running.
Press the thumbwheel while
this display is active to reset
the timer.
Follow Distance/Gap
Setting : When Adaptive
Cruise Control (ACC) is not
engaged, the current follow
time to the vehicle ahead is
displayed as a time value on
this page. When ACC has been engaged, the display switches
to the gap setting page. This
page shows the current gap
setting along with the vehicle
ahead telltale.
Driver Assistance :
If equipped, shows information
for Lane Keep Assist (LKA)
and Forward Collision
Alert (FCA).
Battery Voltage :
Shows the
current battery voltage.
Coolant Temperature :
Shows the engine coolant
temperature in either degrees
Celsius (°C) or degrees
Fahrenheit (°F).
Oil Temperature : Shows the
engine oil temperature in
either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Engine Hours (Hourmeter) :
Shows the total number of
hours the engine has run. The
display also shows the engine
idle hours. Engine Boost :
Displays
engine manifold pressure
relative to ambient air
pressure. It will display boost
pressure generated by the
turbocharging system.
Transmission Fluid
Temperature : Shows the
temperature of the automatic
transmission fluid in either
degrees Celsius (°C) or
degrees Fahrenheit (°F).
Info Page Options : Scroll to
choose which info pages
appear on the DIC. Press the
thumbwheel to select or
deselect.
Blank Page : Allows for no
information to be displayed in
the cluster info display areas.
Driver Information
Center (DIC) (Uplevel)
The DIC is displayed in the
instrument cluster. It shows
the status of many vehicle
systems.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
134 Instruments and Controls
When in tour mode, shows
history of the Average Fuel
Economy from the last 100 km
(62 mi). Each bar represents
about 5 km (3 mi) of driving.
When driving, the bars shift to
reflect the most recent
distance on the right side.
Lateral G-Force :If equipped,
displays inertial forces being
exerted on the vehicle in the
lateral (side-to-side) direction
as numerical value and as
graphical depiction.
Oil Pressure : Shows the
current oil pressure in either
kilopascal (kPa) or in pounds
per square inch (psi).
Oil Temperature : Shows the
current oil temperature in
either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Time & Temperature :
Displays the current time and
the current outside air
temperature. Tire Status :
Shows individual
tire pressures and overall
temperature as either Cold,
Cool, Normal, Warm, or Hot.
Normal is typical for normal
driving while Warm is typical
for aggressive driving.
Unknown displays when tire
temperature information is
unavailable.
Transmission Fluid
Temperature : If equipped,
shows the temperature of the
transmission fluid in either
degrees Celsius (°C) or
degrees Fahrenheit (°F).
Right Zone
Trip 1 or 2/Average Speed/
Average Fuel Economy : Trip
displays the current distance
traveled, in either
kilometers (km) or miles (mi),
since the trip odometer was
last reset. The trip odometer
can be reset by pressing and
holding the thumbwheel while
this display is active. Average Speed displays the
average speed of the vehicle
in kilometers per hour (km/h)
or miles per hour (mph). This
average is calculated based on
the various vehicle speeds
recorded since the last reset
of this value. The average
speed can be reset by
pressing and holding the
thumbwheel while this display
is active.
Average Fuel Economy
displays the approximate
average liters per
100 kilometers (L/100 km) or
miles per gallon (mpg). This
number is calculated based on
the number of L/100 km (mpg)
recorded since the last time
this menu item was reset. This
number reflects only the
current, approximate average
fuel economy and changes as
driving conditions change. The
Average Fuel Economy can be
reset by pressing and holding
the thumbwheel while this
display is active.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
240 Driving and Operating
Axle Fluid
Axles must have 2 400 km
(1,500 mi) before being used in
track driving.
The rear axle fluid
temperatures may be higher
than when driving in severe
conditions. Drain and refill with
new fluid after the first racing
or competitive driving event,
and then after every 24 hours
of racing or competitive
driving. See your dealer for
the correct fluid.
Caution
During a first time track or
racing event, high axle
temperatures can occur.
Damage could be caused to
the axle and would not be
covered by the vehicle
warranty. Do not drive as
long or as fast the first time
the vehicle is driven on the
track or raced.
.The axle lubricant should be
replaced with new lubricant.
.On vehicles without a
differential cooler, additional
cooling capacity is required
for continuous competitive
driving. The V-Series
Blackwing has a differential
cooler, so no additional
cooling capacity is
necessary.
Engine OilCaution
If the vehicle is used for
track events and
competitive driving, the
engine may use more oil
than it would with normal
use. Low oil levels can
damage the engine. Check
the oil level often and
maintain the proper level.
See Engine Oil 0378.
Check the oil level often during
track events and competitive
driving, and keep the oil level
at or near the upper mark. See
“Checking the Engine Oil" in
Engine Oil 0378.
Fuel
Use premium unleaded
gasoline with a posted octane
rating of 93 at a track event.
Unleaded gasoline with a
posted octane rating of
91 may be used, but
performance will be degraded.
See Prohibited Fuels 0355.
Automatic or Manual
Transmission Fluid
Have the transmission fluid
set to the track specific oil
level prior to track usage.
Transmission fluid should be
changed after every 15 hours
of track usage. Any
transmission level set or
change should be performed
at the dealer.
Brakes
Battery Disconnect
Disconnect the battery before
servicing the hydraulic brake
system. It is critical to
disconnect the battery before
bleeding the system, replacing

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
260 Driving and Operating
Caution (Continued)
.Check engine oil with
every refueling and add if
necessary. Oil and fuel
consumption may be
higher than normal during
the first
2 414 km (1,500 mi).
.To break in new tires,
drive at moderate speeds
and avoid hard cornering
for the first
322 km (200 mi). New tires
do not have maximum
traction and may tend
to slip.
.New brake linings also
need a break-in period.
Avoid making hard stops
during the first
322 km (200 mi). This is
recommended every time
brake linings are replaced.
.Should the vehicle be used
for racing or competitive
driving (after break-in), the
rear axle lubricant must be
replaced beforehand.See Track Events and
Competitive Driving (V-Series
and V-Series Blackwing)
0238.
On new vehicles, the various
mechanical and electrical
systems experience a
“break-in” period during the
first 6,400 km (4,000 miles) of
routine driving. As the vehicle
is driven, the mechanical
systems adjust to provide
optimal fuel economy and
transmission shift
performance.
Electrical systems will adapt
and calibrate during the
break-in period. A one-time
occurrence of clicks and
similar vehicle noises is normal
during this process.
Normal driving charges the
vehicle’s battery to achieve
the best operation of the
vehicle, including fuel
economy.
Composite Materials
This vehicle may be equipped
with parts containing carbon
fiber, sheet-molding
compound, or other composite
materials. Dealer-installed
accessories may also contain
composite materials.
{Warning
Exposed edges of parts
containing carbon fiber and
other composite materials
can be sharp. Contact with
these parts could result in
injury. Use caution to avoid
contacting these parts,
including when washing the
vehicle. If the parts are
damaged, replace the parts
promptly with replacements
from your dealer.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 261
{Warning
Rocker extensions may
break under pressure,
resulting in property damage
or injury. Do not stand on
the rocker extension or use
it as a step.
{Warning
Rear end spoilers may break
under pressure, resulting in
property damage or injury.
Do not push the vehicle by
the spoiler or use the spoiler
as a handle.
Ignition Positions
The vehicle has an electronic
keyless ignition with
pushbutton start.
The Remote Key must be in
the vehicle for the system to
operate. If the pushbutton
start is not working, the
vehicle may be near a strong
radio antenna signal causing
interference to the Keyless
Access system. See Remote
Key Operation09.
To shift out of P (Park), the
vehicle must be on and the
brake pedal must be applied. Stopping the Engine/OFF (No
Indicator Lights) :
When the
vehicle is stopped, press
ENGINE START/STOP once to
turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and
Retained Accessory
Power (RAP) will remain active.
See Retained Accessory
Power (RAP) 0267.
If the vehicle has an automatic
transmission, and is not in
P (Park), the ignition will return
to accessory mode and display
a message in the Driver
Information Center (DIC).
When the vehicle is shifted
into P (Park), the ignition
system will turn OFF.
If the vehicle has a manual
transmission and is stationary,
the ignition will turn off, and
Retained Accessory
Power (RAP) will remain active.
See Retained Accessory
Power (RAP) 0267.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
264 Driving and Operating
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. See Remote Key
Operation09.
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 accessory
mode. 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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 359
Warning (Continued)
damaged, and the repairs
would not be covered by the
vehicle warranty. Pull a
trailer only if all the steps in
this section have been
followed. Ask your dealer for
advice and information
about towing a trailer with
the vehicle.
Driving with a Trailer
Trailering is different than just
driving the vehicle by itself.
Trailering means changes in
handling, acceleration, braking,
durability, and fuel economy.
Successful, safe trailering
takes correct equipment, and
it has to be used properly.
The following information has
many time-tested, important
trailering tips and safety rules.
Many of these are important
for your safety and that of
your passengers. Read this
section carefully before pulling
a trailer.When towing a trailer:
.Become familiar with, and
follow all state and local laws
that apply to trailer towing.
These requirements vary
from state to state.
.State laws may require the
use of extended side view
mirrors. If your visibility is
limited or restricted while
towing, install extended side
view mirrors on your vehicle,
even if not required.
.Do not tow a trailer during
the first 800 km (500 mi) of
vehicle use to prevent
damage to the engine, axle,
or other parts.
.Perform the first oil change
before heavy towing.
.Do not drive over 800 km/h
(50 mph) and do not make
starts at full throttle during
the first 800 km (500 mi) of
trailer towing.
.Tow in D (Drive). If the
transmission downshifts too
often, a lower gear may be
selected using Manual Mode.
See Manual Mode
(Electronic Shifter)
0281 or
Manual Mode (Mechanical
Shifter) 0280.
If equipped, the following
driver assistance features
should be turned off when
towing a trailer:
.Adaptive Cruise
Control (ACC)
.Super Cruise Control
.Park Assist
.Automatic Parking
Assist (APA)
.Reverse Automatic
Braking (RAB)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 361
Towing with a Stability
Control System
When towing, the stability
control system might be
heard. The system reacts to
vehicle movement caused by
the trailer, which mainly occurs
during cornering. This is
normal when towing heavier
trailers.
Following Distance
Stay at least twice as far
behind the vehicle ahead as
you would when driving
without a trailer. This can help
to avoid heavy braking and
sudden turns.
Passing
More passing distance is
needed when towing a trailer.
The combination of the vehicle
and trailer will not accelerate
as quickly and is much longer
than the vehicle alone. It is
necessary to go much farther
beyond the passed vehiclebefore returning to the lane.
Pass on level roadways. Avoid
passing on hills if possible.
Backing Up
Hold the bottom of the
steering wheel with one hand.
To move the trailer to the left,
move that hand to the left. To
move the trailer to the right,
move that hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making Turns
Caution
Turn more slowly and make
wider arcs when towing a
trailer to prevent damage to
your vehicle. Making very
sharp turns could cause the
trailer to contact the vehicle.
Make wider turns than normal
when towing, so trailer will not
go over soft shoulders, over
curbs, or strike road signs,
trees, or other objects. Always signal turns well in advance.
Do not steer or brake
suddenly.
Driving on Grades
Reduce speed and shift to a
lower gear before starting
down a long or steep downhill
grade. If the transmission is
not shifted down, the brakes
may overheat and result in
reduced braking efficiency.
Vehicles can tow in D (Drive).
Shift the transmission to a
lower gear if the transmission
shifts too often under heavy
loads and/or hilly conditions.
When towing at higher
altitudes, engine coolant will
boil at a lower temperature
than at lower altitudes. If the
engine is turned off
immediately after towing at
high altitude on steep uphill
grades, the vehicle could show
signs similar to engine
overheating. To avoid this, let
the engine run, preferably on
level ground, with the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
362 Driving and Operating
transmission in P (Park) for a
few minutes before turning
the engine off. If the overheat
warning comes on, see Engine
Overheating0391.
Parking on Hills
{Warning
To prevent serious injury or
death, always park your
vehicle and trailer on a level
surface when possible.
When parking your vehicle and
your trailer on a hill: 1. Press the brake pedal, but do not shift into P (Park)
yet. Turn the wheels into
the curb if facing downhill
or into traffic if facing
uphill.
2. Have someone place chocks under the trailer
wheels. 3. When the wheel chocks
are in place, gradually
release the brake pedal to
allow the chocks to absorb
the load of the trailer.
4. Reapply the brake pedal. Then apply the parking
brake and shift into
P (Park).
5. Release the brake pedal.
Leaving After Parking on
a Hill
1. Apply and hold the brake pedal.
.Start the engine.
.Shift into the
desired gear.
.Release the parking
brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance when Trailer
Towing
The vehicle needs service
more often when used to tow
trailers. See Maintenance
Schedule 0469. It is especially
important to check the
automatic transmission fluid,
engine oil, axle lubricant, belts,
cooling system, and brake
system before and during
each trip.
Check periodically that all nuts
and bolts on the trailer hitch
are tight.
Engine Cooling when
Trailer Towing
The cooling system may
temporarily overheat during
severe operating conditions.
See Engine Overheating 0391.