as it was before the repair or service. If s/he cannot do so,
then the odometer must be set at zero, and a sticker must
be placed in the door jamb stating what the mileage was
before the repair or service. It is a good idea for you to
make a record of the odometer reading before the repair/
service, so that you can be sure that it is properly reset, or
that the door jamb sticker is accurate if the odometer
must be reset at zero.
When the appropriate conditions exist, this display
shows the Electronic Vehicle Information Center (EVIC)
messages. Refer to “Electronic Vehicle Information Cen-
ter”.
11. Tire Pressure Monitoring Telltale LightEach tire, including the spare (if provided),
should be checked monthly, when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle
has tires of a different size than the size indicated on the
vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those
tires.)
As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
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UNDERSTANDING YOUR INSTRUMENT PANEL 251
•Service Air Suspension System — This is displayed
when a fault has occurred in the system. The system
will have limited operation at that point.
•Immediate Air Suspension Service/Repair Required
— This is displayed when a fault has occurred in the
system which results in a complete system shutdown.
The system will be non operational at that point.
•Reduce Speed To Maintain Selected Ride Height —
This message is displayed in advance warning to the
driver that the vehicle will be moved to the next lower
preset position unless the speed is reduced.
•Selected Ride Height Not Permitted — The vehicle
speed is too high to enter one of the preset levels
(Entry/Exit Level/Off Road Ride Height Level 1/Off
Road Ride Height Level 2).
•Air Suspension System Cooling Down – Please Wait —
This message is displayed if the compressor tempera-
ture level is too high. Level control is suspended until
the compressor has cooled down.
•Vehicle Cannot Be Lowered – Door Open — This
message is displayed if a door or the liftgate is ajar and
level control is suspended.
•Air Suspension Temporarily Disabled For Jacking And
Tire Change
•Aerodynamic Ride Height — This is displayed (for
5 seconds) when the vehicle has achieved the Aerody-
namic Height.
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UNDERSTANDING YOUR INSTRUMENT PANEL 265
MAINTENANCE SCHEDULE
The Scheduled Maintenance services listed in this
manual must be done at the times or mileages specified
to protect your vehicle warranty and ensure the best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions, such as dusty areas and very short trip
driving. Inspection and service should also be done
anytime a malfunction is suspected.
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
On Electronic Vehicle Information Center (EVIC)
equipped vehicles “Oil Change Required” will be dis-
played in the EVIC and a single chime will sound,
indicating that an oil change is necessary.
Based on engine operation conditions the oil change
indicator message will illuminate, this means that serviceis required for your vehicle. Have your vehicle serviced
as soon as possible, within the next 500 miles (805 km).
NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicles oil
if it has been 6 months since your last oil change even
if the oil change indicator message is NOT illumi-
nated.
•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 8,000 miles (13,000 km) or 6 months, whichever
comes first.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
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