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
378. In
addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See
Maintenance Schedule
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
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
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)
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
424 and
Tire Pressure Monitor
Operation
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