2023 CADILLAC CT4 automatic transmission

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
148 Lighting
If equipped, the DRL will come
on when all of the following
conditions are met:
.The ignition is on.
.The exterior lamp control is
in AUTO.
.The light sensor determines
it is daytime.
The DRL turn off when the
headlamps are turned to
Oor
the ignition is off.
For vehicles first sold in
Canada, the DRL can only be
turned off when the vehicle is
parked.
Automatic Headlamp
System
When the exterior lamp
control is set to AUTO and it is
dark enough outside, the
headlamps come on
automatically.
The light sensor is on top of
the instrument panel or on the
windshield near the rearview
mirror. Do not cover the
sensor, otherwise the
headlamps will come on when
they are not needed.
The system may also turn on
the headlamps when driving
through a parking garage or
tunnel.
If the vehicle is started in a
dark garage, the automatic
headlamp system comes on
immediately. If it is light
outside when the vehicle
leaves the garage, there is a slight delay before the
automatic headlamp system
turns off the headlamps.
During that delay, the
instrument cluster may not be
as bright as usual. Make sure
the instrument panel
brightness control is in the full
bright position. See
Instrument Panel Illumination
Control
0150.
When it is bright enough
outside, the headlamps will
turn off.
The automatic headlamp
system turns off when the
exterior lamp control is turned
to
Oor the ignition is off. For
vehicles sold in Canada, this
control only works when the
transmission is in P (Park).
Lights On with Wipers
If the windshield wipers are
activated in daylight with the
engine on, and the exterior
lamp control is in AUTO, the
headlamps, parking lamps, and
other exterior lamps come on.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
196 Infotainment System
Timing:
Displays these vehicle metrics:
.Vehicle Speed: Same as
Sport.
.Engine Revolutions Per
Minute (rpm): Same as Sport.
.Transmission State (Current
Gear): Same as Sport.
.0–100 km/h (0–60 mph),
0–200 km/h (0–100 mph),
400 m (1/4 th mi), and
0–200–0 km/h (0–100–
0 mph): The timer starts
recording as soon as the
vehicle accelerates. As the
vehicle passes each speed
and distance milestone, it is
displayed on the overlay.
.Throttle Position: Displays
the percentage of throttle
applied from 0–100%.
.Active Handling Active
Indicator: The graphic only
displays if the active
handling systems are
activated.
Lap Timing
Touch Lap Timing on the PDR
tab to display the track
selection screen.
.Select Custom Track, then
Learn to create a new
custom track for lap timing.
.Select Custom Track, then
Relearn if a custom track has
already been defined and is
available on the storage
device.
.Only one track can be
learned during each
recording session. To learn a
new track, end the current
recording and start a
new one.
Custom Track Learning -
Circuit
.Select Circuit, when at the
starting line, as the track
type. The starting line is
located at the current
vehicle position.
.Circuit track learning will
complete automatically when
the vehicle crosses the
start/finish line.
.Touching X in the upper right
corner will exit the track
learning process.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
212 Infotainment System
.Change Teen Driver
settings.
.Change or clear the Teen
Driver PIN.
.Access or delete Report
Card data.
Set up/Add keys to activate
Teen Driver and assign
restrictions to the key:
Any vehicle key can be
registered, up to a maximum
of eight keys. Label the key to
tell it apart from the
other keys.
For a pushbutton start
system: 1. Start the vehicle.
2. For automatic transmissions, the vehicle
must be in P (Park). For
manual transmissions, the
vehicle must be stopped
with the parking brake set.
3. From the Settings menu, touch Vehicle and then
Teen Driver.
4. Enter the PIN. 5. Place the remote key you
wish to register in the
transmitter pocket. The
key does not need to be
the one that started the
vehicle. See Remote Key
Operation 09 for
transmitter pocket
location.
6. From the Teen Driver menu, touch Setup Keys or
Add/Remove Teen
Driver Keys.
.If the remote key has
not previously been
registered, the option to
add the key displays.
Touch Add and a
confirmation message
displays. Teen Driver
restrictions will be
applied whenever this
remote key is used to
operate the vehicle.
.If the remote key has
already been registered,
the option to remove
the key displays.
If Remove is touched,
the remote key is no longer registered.
A confirmation message
displays, and Teen
Driver restrictions will
not be applied if this
remote key is used to
operate the vehicle.
In vehicles with a pushbutton
start system, if a Teen Driver
and a non-Teen Driver key are
both present at start up, the
vehicle will recognize the
non-Teen Driver key to start
the vehicle. The Teen Driver
settings will not be active.
For a keyed ignition system: 1. Start the vehicle.
2. For automatic transmissions, the vehicle
must be in P (Park). For
manual transmissions, the
vehicle must be stopped
with the parking brake set.
3. From the Settings menu, touch Vehicle and then
Teen Driver.
4. Enter the PIN.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
232 Driving and Operating
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . 234
Distracted Driving . . . . . . . . . 234
Defensive Driving . . . . . . . . . . 235
Impaired Driving . . . . . . . . . . . 235
Control of a Vehicle . . . . . . 235
Braking . . . . . . . . . . . . . . . . . . . . . . . 235
Steering . . . . . . . . . . . . . . . . . . . . . . 236
Off-Road Recovery . . . . . . . 237
Loss of Control . . . . . . . . . . . . 237
Track Events and Competitive Driving
(V-Series and V-Series
Blackwing) . . . . . . . . . . . . . . . . . 238
Driving on Wet Roads . . . . 251
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . 252
Winter Driving . . . . . . . . . . . . . . 253
If the Vehicle Is Stuck . . . . 255
Vehicle Load Limits . . . . . . . 255
Starting and Operating
New Vehicle Break-In . . . . 259
Composite Materials . . . . . 260
Ignition Positions . . . . . . . . . . . 261 Starting the Engine . . . . . . . 263
Stop/Start System . . . . . . . . 264
Engine Heater . . . . . . . . . . . . . . 266
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . 267
Shifting Into Park (Mechanical Shifter) . . . . . 267
Shifting Into Park (Electronic Shifter) . . . . . . 268
Shifting out of Park (Mechanical Shifter) . . . . . 269
Shifting out of Park (Electronic Shifter) . . . . . . 270
Parking (Manual Transmission) . . . . . . . . . . . . . 270
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 271
Extended Parking . . . . . . . . . . 271
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . 271
Running the Vehicle While Parked . . . . . . . . . . . . . . 272
Automatic Transmission
Automatic Transmission(Mechanical Shifter) . . . . . 272
Automatic Transmission (Electronic Shifter) . . . . . . 275
Manual Mode (Mechanical Shifter) . . . . . 280 Manual Mode (Electronic
Shifter) . . . . . . . . . . . . . . . . . . . . . . 281
Manual Transmission
Manual Transmission . . . . . 283
Active Rev Match . . . . . . . . . 285
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . 286
Brakes
Electric Brake Boost . . . . . 286
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . 286
Electric Parking Brake . . . 287
Brake Assist . . . . . . . . . . . . . . . . 289
Hill Start Assist (HSA) . . . . 289
Automatic Vehicle Hold (AVH) . . . . . . . . . . . . . . . . . 289
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . 290
Driver Mode Control . . . . . . 292
Competitive Driving Mode . . . . . . . . . . . . . . 298
Limited-Slip Differential . . . . . . . . . . . . . . . . . 301

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
Driving and Operating 249
1. Using the DriverInformation Center (DIC)
buttons on the right side
of the steering wheel,
navigate to the Launch
Control menu. See Driver
Information Center (DIC)
(Base Level) 0129 or
Driver Information Center
(DIC) (Uplevel) 0132.
2. Press SEL to select Custom.3. Scroll down toLaunch RPM.
4. Adjust the desired RPM: 1200–2400 for automatic
transmissions and 2400–
4000 RPM for manual
transmissions.
Manual Transmission 5. Set Slip Target to custom
desired setting.
.Manual Trans: Apply full
throttle to activate
Launch Control and
quickly release the
clutch pedal to launch
the vehicle.
Automatic Transmission
.Auto Trans: Firmly press
and hold the brake pedal
to activate Launch
Control.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
250 Driving and Operating
6. Auto Trans Only - Quicklyapply full throttle. Release
the brake pedal to launch
the vehicle.
Line Lock (If Equipped)
{Warning
The vehicle may move
unexpectedly when using
Line Lock, which could cause
injury to persons or property
located nearby. Only use
Line Lock on a closed track
where there is a large clear
area around all sides of the
vehicle. Be ready to apply
the brakes immediately if the
vehicle begins to move. Do
(Continued)
Warning (Continued)
not use Line Lock in an area
that is accessible to the
public or where people or
property are located near
the vehicle.
Caution
Attempting to shift when
the drive wheels are
spinning and do not have
traction may cause damage
to the transmission. Damage
caused by misuse of the
vehicle is not covered by the
vehicle warranty. Do not
attempt to shift when the
drive wheels do not have
traction.
Line Lock allows for locking
the front brakes
independently of the rear
brakes. This allows the rear
tires to spin when the throttle
is applied. To enter Line Lock, all of
these conditions must be met:
.The vehicle must be in
Track Mode.
.Performance Traction
Management (PTM) Mode
must be enabled.
.The steering wheel must be
straight.
.The driver door must be
closed.
.The vehicle must be in D
(Drive) for an automatic
transmission or 1 (First) gear
for a manual transmission.
.The parking brake must not
be engaged.
.The vehicle must be stopped
on level ground. The
accelerator pedal must not
be applied.

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.