ECO mode CADILLAC CT4 2023 Owner's Guide

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
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 - 5/10/22
Driving and Operating 263
begins, release the button.
Engine cranking will continue
until the engine starts. See
Starting the Engine0263. The
ignition will then remain on.
Service Mode
This power mode is available
for service and diagnostics,
and to verify the proper
operation of the malfunction
indicator lamp as may be
required for emission
inspection purposes. With the
vehicle off, and the brake
pedal not applied, pressing
and holding ENGINE
START/STOP for more than
five seconds will place the
vehicle in Service Mode. The
instruments and audio
systems will operate as they
do in ON/RUN, but the vehicle
will not be able to be driven.
The engine will not start in
Service Mode. Press the
button again to turn the
vehicle off.Starting the Engine
Place the transmission in the
proper gear
Caution
If you add electrical parts or
accessories, you could
change the way the engine
operates. Any resulting
damage would not be
covered by the vehicle
warranty. See Add-On
Electrical Equipment 0366.
Automatic Transmission
Move the shift lever to
P (Park) or N (Neutral). To
restart the vehicle when it is
already moving, use
N (Neutral) only.
Caution
Do not try to shift to P (Park)
if the vehicle is moving.
If you do, you could damage (Continued)
Caution (Continued)
the transmission. Shift to
P (Park) only when the
vehicle is stopped.
Manual Transmission
The shift lever should be in
Neutral and the parking brake
engaged. Hold the clutch pedal
down to the floor, press the
brake pedal, and start the
engine.
Starting the Vehicle 1. For vehicles with an automatic transmission,
press the brake pedal, then
press ENGINE START/
STOP on the instrument
panel. For a manual
transmission, place the
shift lever in Neutral with
the parking brake engaged.
Hold the clutch pedal down
to the floor, press the
brake pedal, then press
ENGINE START/STOP.

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
280 Driving and Operating
Downshifting the transmission
in slippery road conditions
could result in skidding. See
“Skidding”under Loss of
Control 0237.
Caution
Spinning the tires or holding
the vehicle in one place on a
hill using only the
accelerator pedal may
damage the transmission.
The repair will not be
covered by the vehicle
warranty. If the vehicle is
stuck, do not spin the tires.
When stopping on a hill, use
the brakes to hold the
vehicle in place.
Manual Mode
(Mechanical Shifter)
Tap Shift
Caution
Driving with the engine at a
high rpm without upshifting
while using Tap Shift, could
damage the vehicle. Always
upshift when necessary
while using Tap Shift.
Vehicles with Tap Shift have
controls on the back of the
steering wheel to manually
shift the automatic
transmission.
To enter Permanent Tap
Shift Mode: 1. Move the shift lever from D (Drive) to M (Manual
Mode). While in Tap Shift
Mode, the M on the
instrument cluster will
become highlighted, and
the current gear is
indicated.
2. Tap the left control to downshift, and the right
control to upshift. To shift
to the lowest available
gear, press and hold the
left control.
3. To exit, move the shift lever back to D (Drive).
With the shift lever in D (Drive)
and not in Permanent Tap
Shift Mode, the tap shift
controls will activate a
temporary tap manual shift
mode, allowing the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 281
transmission to be manually
shifted. While in Temporary
Tap Shift Mode, the D on the
instrument cluster will be
highlighted and the current
gear shown. Automatic shifts
return after no manual shifts
have been done for seven to
10 seconds. The Temporary
Tap Shift Mode can also be
deactivated by holding the
right upshift control briefly.
While using Tap Shift, the
vehicle will have firmer, quicker
shifting. You can use this for
sport driving or when climbing
or descending hills, to stay in
gear longer, or to downshift
for more power or engine
braking.
The transmission will only
allow you to shift into gears
appropriate for the vehicle
speed and engine revolutions
per minute (rpm). The
transmission will not
automatically shift to the next
lower gear if the engine rpm is
too high, nor to the nexthigher gear when the
maximum engine rpm is
reached.
If shifting is prevented for any
reason, a SHIFT DENIED
message will be displayed in
the instrument cluster.
Manual Mode
(Electronic Shifter)
Tap Shift
Caution
Driving with the engine at a
high rpm without upshifting
while using Tap Shift, could
damage the vehicle. Always
upshift when necessary
while using Tap Shift.
If equipped, vehicles with Tap
Shift have controls on the
back of the steering wheel to
manually shift the automatic
transmission.
Permanent Tap Shift Mode
To enter Permanent Tap
Shift Mode: 1. With the vehicle in D (Drive), pull back on the
shift lever to activate
M (Manual Mode). The M in
the shift pattern will
illuminate in red, and the D
will switch to white. While
in Permanent Tap Shift

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
282 Driving and Operating
Mode, the M on the
instrument cluster will be
highlighted and the current
gear shown.
2. After releasing the shift lever, it will return to the
center position.
3. Pull the control toward you to shift. Pull the left
control to downshift, and
the right control to upshift.
To shift to the lowest
available gear, pull and hold
the left control.
To exit Permanent Tap
Shift Mode: 1. To exit M (Manual Mode) and return to D (Drive), pull
back on the shift lever. The
D in the shift pattern will
illuminate in red, and the M
will switch to white.
2. After releasing the shift lever, it will return to the
center position.
M (Manual Mode) can be exited
to return to D (Drive) at any
speed by pulling the lever rearward from the center
position. It is not necessary to
stop the vehicle or shift to
N (Neutral) or P (Park) prior to
shifting back to D (Drive).
Temporary Tap Shift Mode
To enter Temporary Tap
Shift Mode:
1. With the transmission in D (Drive) and not in
Permanent Tap Shift
Mode, the Tap Shift
controls will activate a
Temporary Tap Shift
Mode, allowing the
transmission to be
manually shifted. While in
Temporary Tap Shift
Mode, the D on the
instrument cluster will be
highlighted and the current
gear shown.
2. To shift to the lowest available gear, press and
hold the left control.
3. To deactivate, hold the right control briefly.
Automatic shifts return after no manual shifts have
been done for seven to
10 seconds.
While using Tap Shift, the
vehicle will have firmer, quicker
shifting. This can be used for
sport driving or when climbing
or descending hills, to stay in
gear longer, or to downshift
for more power or engine
braking.
The transmission will only
allow shifting into gears
appropriate for the vehicle
speed and engine revolutions
per minute (rpm). If shifting is
prevented for any reason, the
M or D will flash in the
instrument cluster. The
transmission will not
automatically shift to the next
higher gear if the engine rpm
is too high. It will only
automatically shift to the next
lower gear if the engine rpm is
much too low.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
296 Driving and Operating
Mode Selection Attributes
MODESTOUR
Default SPORT
TRACK SNOW/ICE
Engine/Shift TourTourTrackSnow/Ice
Throttle Progression TourTourTrackSnow/Ice
Transmission Shift Mode TourSport Track Tour
Engine Sound TourSport Track Tour
Steering TourSport Track Tour
Suspension (if equipped with Magnetic Ride
Control) Tour
Sport Track Tour
Traction and Stability Control TourTourTrack Tour
Competitive Driving Mode (if equipped) Not Available Available Not Available Not Available
Performance Traction Mode (if equipped) Not Available Not Available Available Not Available
Brake Feel TourSport Track Tour
Throttle Progression
Adjusts throttle sensitivity by
selecting how quick or slow
the throttle reacts to input.
.Snow/Ice–The accelerator
pedal reduces engine torque
at small pedal inputs. This
allows better wheel control
on slippery surfaces.
.Track –The accelerator
pedal adjusts to give
maximum control during the
highest level of spirited
driving.
Transmission Shift Mode
Sport or Track –Dynamic
Performance Mode (DPM)
allows the transmission to
hold the current gear after a quick release of a heavily
applied accelerator pedal. This
provides greater engine
braking and enhanced vehicle
control without using the
paddles. DPM recognizes
aggressive cornering, heavy
braking, and high acceleration
to select and hold lower gears
when not using paddles. The

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 297
shifts are also firmer to
increase the quickness of
shifting.
Engine Sound
Adjusts the volume of engine
noise.
The sound level changes when
the variable exhaust
valves open.
Steering (Assist Effort)
Adjusts from a lighter steering
feel in Tour Mode to reduced
assist in Sport and Track
Mode for more steering feel.
Magnetic Ride Control (If
Equipped)
Adjusts the shock dampening
firmness from a comfort in
Tour Mode to an optimized
responsiveness tune in Sport
and Track.
Stability Control
.Competitive Mode allows
less computer control to
permit some slide and driftand is selected with the
TCS/StabiliTrak button
–
only available in Sport Mode.
.StabiliTrak/Electronic
Stability Control (ESC) can
be turned off by pressing
and holding the TCS/
StabiliTrak button for
five seconds.
Brake Feel
Adjusts brake pedal sensitivity
by selecting how quick or slow
the brakes respond to input.
Drive Mode Customization
The following settings can be
changed using the Drive Mode
Customization Menu. See
Settings > Vehicle > Drive
Mode Customization in the
center display to customize
My Mode or V-Mode.
Steering
Steering adjusts the effort
required to turn the steering
wheel. The steering wheel
offers better feedback in the Tour setting, but requires
more effort in the Sport and
Track settings.
–Tour, Sport, Track
Suspension
Suspension adjusts the
firmness of the suspension in
the vehicle. Suspension
adjusts the stiffness of the
shocks and/or springs. The
ride is more comfortable at
lower settings and is stiffer at
higher settings for better
control.
–Tour, Sport, Track
Brake Feel
Brake Feel adjusts the brake
pedal response. Settings
range from a slower response
for more comfortable driving
to the quickest response for
quicker deceleration. Brake
pedal travel decreases and
caliper pressure increases in
the Sport and Track settings.
–Tour, Sport, Track

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 299
the ESC switch twice while in
Track Mode. Depending on
available options and trim
levels, it can also be activated
through a separate PTM
switch on the steering wheel.
To activate PTM through
V-Mode customization, select
the desired PTM state in the
center stack (Settings >
Vehicle > Drive Mode
Customization > V-Mode).
Press the V-Mode switch once
to activate V-Mode. When
PTM is configured, a message
will appear in the DIC“V-Mode
Active –Press Again for PTM
On –ESC May be Disabled.”
To confirm and enter PTM,
press the V-Mode switch
again. The PTM state can now
be modified using the MODE
switch or changing the
V-Mode PTM settings in the
center stack. Both the V-Mode
and PTM indicators are
displayed. To exit PTM, press
the ESC switch. To cancel, press the center dismiss
button on the steering wheel
(V-Mode remains active).
If available, PTM can also be
activated through a PTM
switch on the steering wheel
by pressing up on the switch.
From there a PTM menu will
appear in the DIC. Press up or
down on the PTM switch to
scroll through the options and
make a selection. To exit PTM,
select INACTIVE in the PTM
menu, turn off PTM in the
V-Mode configuration page,
or press the ESC switch once.
Selecting PTM states may
modify Off, Wet, Dry, Sport,
Race 1, and Race 2 V-Mode
customization options.
In vehicles with a PTM
steering wheel switch,
Inactive, Wet, Dry, Sport, Race
1, and Race 2 PTM states are
available through the
moding menu.
In vehicles without a PTM
steering wheel switch, Wet,
Dry, Sport, Race 1, and Race 2
PTM states are available
through the moding menu.
The following is a DIC display
description and the
recommended usage of
each mode:
WET
.Intended for all driver skill
levels.
.Wet or damp conditions
only
—not intended for use
in heavy rain or standing
water.
.StabiliTrak/ESC is on and
engine power is reduced
based on conditions.
DRY
.For use by less experienced
drivers or while learning a
new track.
.Dry conditions only.
.StabiliTrak/ESC is on and
engine power is slightly
reduced.