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Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
23. Voltage Light
This light monitors the electrical system volt-
age. The light should turn on momentarily as
the engine is started. If the light stays on or turns on
while driving, it indicates a problem with the charging
system. Immediate service should be obtained.
24. Malfunction Indicator Light
This light is part of an onboard diagnostic
system called OBD that monitors engine and
automatic transmission control systems. The
light will illuminate when the key is in the ON
position before engine start. If the bulb does not come
on when turning the key from OFF to ON, have the
condition checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc. may illuminate the light after
engine start. The vehicle should be serviced if the lightstays on through several of your typical driving cycles. In
most situations the vehicle will drive normally and will
not require towing.
The Malfunction Indicator Light flashes to alert you to
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced as soon as possible if this occurs. (See
page 295 for more information.)
25. Oil Pressure Warning Light
This light shows low engine oil pressure. The
light should turn on momentarily when the
engine is started. If the light turns on while driving,
stop the vehicle and shut off the engine as soon as
possible. A single chime will sound when this light
turns on.
Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked using the procedure
shown in section 7. (See page 298 for more information.)
UNDERSTANDING YOUR INSTRUMENT PANEL 149
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To rock a vehicle out of soft ground (mud or snow),
alternately shift from forward to reverse, while applying
only slight acceleration. Rocking a vehicle free in this
manner may cause the ABS or traction system malfunc-
tion indicator light to come on. Turn off the engine and
restart the engine to clear the malfunction indication.
Brake Transmission Shift Interlock System
This vehicle is equipped with a brake transmission shift
interlock system (BTSI) that holds the gearshift lever in
the P (Park) position when the ignition switch is in the
LOCK position. To move the gear selector lever out of the
P (Park) position, the ignition switch must be turned to
the ON position, and the brake pedal must be depressed.
Over Temperature Mode
The transmission electronics constantly monitor the
transmission oil temperature. If the transmission exceeds
normal operating temperature, the transmission will
change the way it shifts to help control the condition.
This may result in a slightly different feeling or response
during normal operation in D (Drive) position. After the
transmission cools down, it will return to normal opera-
tion.
AUTOSTICK—If Equipped
Autostick is a driver-interactive transmission that offers
manual gear shifting to provide you with more control.
Autostick allows you to maximize engine braking, elimi-
nate undesirable upshifts and downshifts, and improve
overall vehicle performance. This system can also pro-
vide you with more control during passing, city driving,
cold slippery conditions, mountain driving, trailer tow-
ing, and many other situations.
Autostick Operation
By placing the shift lever in the DRIVE position it can be
moved from side to side. This allows the driver to select
a higher or lower range of gears. Moving the lever to the
left (-) triggers a downshift and to the right (+) an upshift.
The gear position will be shown in the transmission gear
display, located in the instrument cluster.
222 STARTING AND OPERATING
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SCHEDULE“B”
Follow Schedule“B”if you usually operate your vehicle
under one or more of the following conditions. Change
the automatic transmission fluid and filter every 60,000
miles (100 000 km) if the vehicle is usually operated
under one or more of the conditions marked with an.
•Day or night temperatures are below 32°F(0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, police or delivery service (commercial ser-
vices).
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you, then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance rec-
ommendations in Schedule“B”in this section.
NOTE:IfANYof these apply to you, then flush and
replace the engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first, and follow the
maintenance recommendations in Schedule“B”in this
section.
SCHEDULE“B”353
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Miles 57,000 60,000 63,000 66,000 69,000 72,000
(Kilometers) (95 000) (100 000) (105 000) (110 000) (115 000) (120 000)
Change engine oil and engine oil filter, if not
replaced at 3 months.XXXXX X
Inspect theair cleaner filterand replace if re-
quired.*X XXX X
Replace theair cleaner filter.X
Replace thespark plugs.5.7L Engine. X
Inspect the front and rear brake linings and
rotors.XX
Check and Inspect the accessory drive belt
and tensioner. Replace if required.X
Check and replace, if necessary, thePCV
valve.*‡X
Change the automatic transmission fluid and
filter.X
Replace the air conditioning filter. X X
Flush and replace engine coolant at 60 months
if not done at 102,000 miles.X
Rotate the tires. X X X
SCHEDULE“B”357
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Miles 108,000 111,000 114,000 117,000 120,000
(Kilometers) (180 000) (185 000) (190 000) (195 000) (200 000)
Change engine oil and engine oil filter, if not re-
placed at 3 months.XXXXX
Inspect theair cleaner filterand replace if re-
quired.*XXXX
Replace theair cleaner filter.X
Inspect the front and rear brake linings and rotors. X X
Replace thespark plugs.5.7L Engine. X
Check and replace, if necessary, thePCV valve.*X
Change the automatic transmission fluid and filter. X
Replace the air conditioning filter. X X
Flush and replace the engine coolant at 120 months,
if not replaced at 102,000 miles.X
Rotate the tires. X X X
* This maintenance is recommended by the manufacture
to the owner but is not required to maintain the emis-
sions warranty.
‡This maintenance is not required if previously replaced.Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
360 SCHEDULE“B”
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