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Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 131
economy over recent driving
history and the amount of fuel
remaining in the fuel tank.
Oil Life :Shows an estimate of
the oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of
the current oil life remains.
When the remaining oil life is
low, the CHANGE ENGINE OIL
SOON message will appear on
the display. The oil should be
changed as soon as possible.
See Engine Oil 0378. In
addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See
Maintenance Schedule 0469.
The Oil Life display must be
reset after each oil change.
It will not reset itself. Do not
reset the Oil Life display
accidentally at any time other
than when the oil has just
been changed. It cannot be
reset accurately until the next
oil change. See Engine Oil Life
System 0381. Air Filter Life :
If equipped,
Shows an estimate of the
engine air filter’s remaining
useful life and the state of the
system. Engine Air Filter Life
95% means 95% of the
current air filter life remains.
Messages will display based
on the engine air filter life and
the state of the system. When
the REPLACE AT NEXT OIL
CHANGE message displays,
the engine air filter should be
replaced at the time of the
next oil change. When the
REPLACE SOON message
displays, the engine air filter
should be replaced at the
earliest convenience.
The Air Filter Life display must
be reset after the engine air
filter replacement. To reset,
see Engine Air Filter Life
System 0383.
Brake Pad Life : If equipped,
This displays an estimate of
the remaining life of the front
and rear brake pads.
Messages will display based on brake pad wear and the
state of the system. Reset the
Brake Pad Life display after
replacing the brake pads. See
Brake Pad Life System (If
Equipped)
0396.
Tire Pressure : Shows the
approximate pressures of all
four tires. Tire pressure is
displayed in either
kilopascal (kPa) or in pounds
per square inch (psi). If the
pressure is low, the value for
that tire is shown in amber.
See Tire Pressure Monitor
System 0424 and
Tire Pressure Monitor
Operation 0425.
Fuel Economy : Displays
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy.
Average Speed : Displays the
average vehicle speed of the
vehicle in kilometers per
hour (km/h) or miles per
hour (mph). This average is
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Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
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Instruments and Controls 135
Fuel Economy :Displays the
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy. Pressing the
thumbwheel opens a menu to
change the selected distance
or reset the current values.
Trip Timer/Fuel Used : This
display can be used as a timer.
To start/stop the timer, press
the thumbwheel while this
display is active and then
select the start/stop the
timer. The display shows the
amount of time that has
passed since the timer was
last reset. To reset the timer
to zero, press the thumbwheel
to access the menu while this
display is active.
Fuel Used displays the
approximate liters (L) or
gallons (gal) of fuel that have
been used since last reset.
The fuel used can be reset by pressing the thumbwheel and
selecting Reset Fuel Used in
the menu.
Current Drive Cycle :
Displays
information in relation to the
current drive cycle including
Distance Traveled, Average
Fuel Economy, and the Total
Time. They will reset after the
drive cycle is completed.
Driver Assistance :
If equipped, displays the
status of all active safety
systems.
Oil Life : Displays an estimate
of the remaining useful oil life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of
the current oil life remains.
When the remaining oil life is
low, the CHANGE ENGINE OIL
SOON message appears on
the display. The oil should be
changed as soon as possible.
See Engine Oil 0378. In
addition to the engine oil life
system monitoring the oil life, additional maintenance is
recommended. See
Maintenance Schedule
0469.
The Oil Life display must be
reset after each oil change.
It will not reset itself. Do not
reset the Oil Life display
accidentally at any time other
than when the oil has just
been changed. It cannot be
reset accurately until the next
oil change. See Engine Oil Life
System 0381.
Air Filter Life : If equipped,
shows an estimate of the
engine air filter’s remaining
useful life and the state of the
system. Engine Air Filter Life
95% means 95% of the
current air filter life remains.
Messages are displayed based
on the engine air filter life and
the state of the system. When
the REPLACE AT NEXT OIL
CHANGE message displays,
the engine air filter should be
replaced at the time of the
next oil change. When the
REPLACE NOW message
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Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Service and Maintenance 473
Exterior Lights
.Visual inspection
Windshield and Wipers
.Visual inspection
Battery
.Battery visual inspection
.Battery test results
.Battery cables and
connections
Systems, Fluids, and
Visible Leak Inspection
.Engine oil
.Transmission
.Drive axle
.Transfer case
.Engine cooling system
.Power steering, if equipped
.Fuel system
.Windshield washer fluid
Tire Inspection
.Tire pressure, tread depth,
and wear
.Rotation, if applicable
.Alignment check, optional
.Reset tire pressure monitor
.Check tire sealant expiration
date, if equipped
.Check spare tire, if equipped
Brakes
.Check brake system
Visible and Functional
Inspections
.Seat belt components
.Exhaust system
.Accelerator pedal
.Passenger compartment air
filter, if equipped
.Engine air filter
.Hoses
.Belts
.Shocks and struts
.Steering components
.Axle boots or driveshaft and
u-joints
.Compartment lift struts,
if equipped
.Floor mats secured, no
interference with pedals
.Horn
.Ignition lock, if equipped
.Starter switch
.Evaporative control system
Lubricate
.Chassis components
Special Application
Services
.Severe Commercial Use
Vehicles Only: Lubricate
chassis components every
oil change.
.Have underbody flushing
service performed. See
"Underbody Maintenance" in
Exterior Care 0455.
Page 481 of 524
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
480 Technical Data
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and
charge amount, see the refrigerant label under the hood. See your dealer for more information.
Engine Cooling System*
I2.0L L4 Engine 10.4 L
11.0 qt
I2.7L L4 Engine 13.0 L
13.7 qt
I3.6L V6 Engine 13.6 L
14.4 qt
I3.6L V6 Engine Intercoolers (V-Series Blackwing) 2.7 L
2.9 qt
Engine Oil with Filter I2.0L L4 Engine 5.0 L
5.3 qt
I2.7L L4 Engine 5.7 L
6.0 qt
I3.6L V6 Engine 6.6 L
7.0 qt
Fuel Tank 66.0 L17.5 gal
Transfer Case –AWD 0.78 L0.8 qt
Front Axle –AWD 0.4 L0.42 qt