Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
146 Instruments and Controls
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 Oil0370. In
addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See
Maintenance Schedule 0454.
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. To reset, see
Engine Oil Life System 0373.
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
0411 and
Tire Pressure Monitor
Operation 0412.
Air Filter Life : 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 NOW message
displays, the engine air filter
should be replaced as soon as
possible.
The Air Filter Life display must
be reset after the engine air
filter replacement. To reset,
see Engine Air Filter Life
System 0374. Fuel Economy :
Displays
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy.
If the vehicle is equipped with
an Active Fuel Management
indicator, the engine operating
mode may be shown in the
corner of this display.
Average Speed : Displays the
average vehicle speed of the
vehicle in kilometers per
hour (km/h) or miles per
hour (mph). This average is
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
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 417
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show
cord or fabric.
.The tire has a bump,
bulge, or split.
.The tire has a puncture,
cut, or other damage that
cannot be repaired well
because of the size or
location of the damage.
Tire Rotation
Tires should be rotated
according to the interval
specified in the
Maintenance Schedule. See
Maintenance Schedule
0454.
Tires are rotated to
achieve a more uniform
wear for all tires. The first
rotation is the most
important. Anytime unusual wear is
noticed, rotate the tires as
soon as possible, check for
proper tire inflation
pressure, and check for
damaged tires or wheels.
If the unusual wear
continues after the
rotation, check the wheel
alignment. See When It Is
Time for New Tires
0418
and Wheel Replacement
0 423.
Use this rotation pattern
when rotating the tires. Do not include the compact
spare tire in the tire
rotation.
Adjust the front and rear
tires to the recommended
inflation pressure on the
Tire and Loading
Information label after the
tires have been rotated.
See Tire Pressure
0408
and Vehicle Load Limits
0 252.
Reset the Tire Pressure
Monitor System. See Tire
Pressure Monitor
Operation 0412.
Check that all wheel nuts
are properly tightened.
See “Wheel Nut Torque”
under Capacities and
Specifications 0463, and
“Removing the Flat Tire and
Installing the Spare Tire”
under Tire Changing 0426.
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
454 Service and Maintenance
Maintenance
Schedule
Tire Rotation and
Required Services Every
12 000 km (7,500 mi)
Tires are rotated to achieve a
more uniform wear for all tires.
The first rotation is the most
important.
Anytime unusual wear is
noticed, rotate the tires as
soon as possible, check for
proper tire inflation pressure,
and check for damaged tires
or wheels. If the unusual wear
continues after the rotation,
check the wheel alignment.
See When It Is Time for New
Tires0418 and Wheel
Replacement 0423.
.Perform Multi-Point Vehicle
Inspection. See Multi-Point
Vehicle Inspection (MPVI)
0456.
.Lubricate body components.
See Exterior Care 0440.
Additional Required
Services —Normal
Service
Every 12 000 km (7,500 mi)
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter,
and reset oil life system. Or
when the CHANGE ENGINE
OIL SOON message displays,
have the engine oil and filter
changed within the next
1 000 km (600 mi). If driven
under the best conditions,
the engine oil life system
may not indicate the need
for vehicle service for up to
a year. The engine oil and
filter must be changed at
least once a year and the oil
life system must be reset.
Your trained dealer
technician can perform this
work. If the engine oil life
system is reset accidentally,
service the vehicle within
5 000 km (3,000 mi) since
the last service. Reset the oil life system when the oil is
changed. See Engine Oil Life
System
0373.
.When the REPLACE AT
NEXT OIL CHANGE
message displays, the engine
air filter should be replaced
at the next engine oil
change. When the REPLACE
ENGINE AIR FILTER SOON
message displays, the engine
air filter should be replaced
at the earliest convenience.
Reset the engine air filter life
system after the engine air
filter is replaced. See Engine
Air Filter Life System 0374.
Every 36 000 km (22,500 mi)
.Passenger compartment air
filter replacement (or every
24 months, whichever
occurs first). More frequent
replacement may be needed
if the vehicle is driven in
areas with heavy traffic,
poor air quality, areas with
high dust levels or are
sensitive to environmental
allergens. Filter replacement
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Service and Maintenance 457
Diagnostics
.OnStar active, if equipped
.Service history/recall check
Engine Oil and Filter
.Engine oil
.Oil life monitor
‐Reset oil life monitor
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 0440.