check engine light RAM CHASSIS CAB 2009 Owners Manual

During normal operation, after turning on the ignition
switch, the Vehicle Security Light will turn on for three
seconds for a bulb check. If the light remains on after the
bulb check, it indicates that there is a problem with the
electronics. In addition, if the Vehicle Security Light
begins to flash after the bulb check, it indicates that
someone used an invalid key to try to start the engine.
Either of these conditions will result in the engine being
shut off after two seconds.
If the Vehicle Security Light turns on during normal
vehicle operation (vehicle running for longer than 10 sec-
onds), it indicates that there is a fault in the electronics.
Should this occur, have the vehicle serviced as soon as
possible.
NOTE:
•The Sentry Key\3Immobilizer System is not compat-
ible with some aftermarket remote starting systems. Use of these systems may result in vehicle starting
problems and loss of security protection.
•Exxon/Mobil Speedpass™, additional Sentry Keys
\3,
or any other transponder-equipped components on
the same key chain will notcause a key-related
(transponder) fault unless the additional part is physi-
cally held against the ignition key being used when
starting the vehicle. Cell phones, pagers, or other
Radio Frequency (RF) electronics will not cause inter-
ference with this system.
All of the keys provided with your new vehicle have
been programmed to the vehicle electronics.
Replacement Keys
NOTE: Only keys that are programmed to the vehicle
electronics can be used to start and operate the vehicle.
Once a Sentry Key\3 is programmed to a vehicle, it cannot
be programmed to any other vehicle.
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

VEHICLE SECURITY ALARM SYSTEM — IF
EQUIPPED
This Vehicle Security Alarm system monitors the vehicle
doors and ignition for unauthorized operation. When the
alarm is activated, the system provides both audible and
visible signals. For the first three minutes the horn will
sound and the headlights and security light will flash
repeatedly. For an additional 15 minutes only, the head-
lights and security light will flash. The engine will run
only if a valid Sentry Key\3is used to start the vehicle.
Use of the Sentry Key\3 will disable the alarm.
Rearming of the System
The Vehicle Security Alarm system will rearm itself after
the 15 additional minutes of headlights and security light
flashing, if the system has not been disabled. If the
condition which initiated the alarm is still present, the
system will ignore that condition and monitor the re-
maining doors and ignition.
To Set the Alarm
The Vehicle Security Alarm will set when you use the
power door locks, or use the Remote Keyless Entry (RKE)
transmitter to lock the doors. After all the doors are
locked and closed, the Vehicle Security Light in the
instrument cluster will flash rapidly to signal that the
system is arming. The Vehicle Security Light in the
instrument panel cluster will flash rapidly for about
16 seconds to indicate that the alarm is being set. After
the alarm is set, the Vehicle Security Light will flash at a
slower rate to indicate that the system is armed.
NOTE:If the Vehicle Security Light stays on continu-
ously during vehicle operation, have the system checked
by an authorized dealer.
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To Disarm the System
Use the RKE transmitter to unlock the door. If something
has triggered the system in your absence, the horn will
sound three times when you unlock the doors and the
Vehicle Security Light will flash for 30 seconds. Check the
vehicle for tampering.
The Vehicle Security Alarm system will also disarm if the
vehicle is started with a programmed Sentry Key\3.Ifan
unprogrammed Sentry Key\3 is used to start a vehicle, the
engine will run for two seconds and then the Security
Alarm will be initiated. To exit the alarming mode, press
the RKE transmitter UNLOCK button, or start the vehicle
with a programmed Sentry Key\3.
The Vehicle Security Alarm system is designed to protect
your vehicle; however, you can create conditions where
the system will arm unexpectedly. If you remain in the
vehicle and lock the doors with the RKE transmitter, the alarm will sound when you pull the door handle to exit.
The door will be locked, but the Vehicle Security Alarm
system will not arm.
ILLUMINATED ENTRY SYSTEM — IF EQUIPPED
The courtesy lights will turn on when you use the
Remote Keyless Entry (RKE) transmitter or open the
doors. This feature is only available if you have Remote
Keyless Entry.
The lights will fade to off after about 30 seconds, or they
will immediately fade to off once the ignition switch is
turned ON.
NOTE:
•The front courtesy overhead console and door cour-
tesy lights do not turn off if the dimmer control is in
the interior lights on position (extreme top position).
•The Illuminated Entry system will not operate if the
dimmer control is in the extreme downward position.
20 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE:Perchlorate Material – special handling may apply:
Refer to www.dtsc.ca.gov/hazardouswaste/perchlorate.
Airbag Warning Light
You will want to have the airbags ready to
inflate for your protection in an impact. While
the airbag system is designed to be mainte-
nance free, if any of the following occurs, have
an authorized dealer service the system promptly:
•The Airbag Warning Light does not come on or flickers
during the six to eight seconds when the ignition
switch is first turned ON.
•The light remains on or flickers after the six to eight
second interval.
•The light flickers or comes on and remains on while
driving. NOTE:
If the speedometer, tachometer or any engine
related gauges are not working, the ORC may also be
disabled. The airbags may not be ready to inflate for your
protection. Promptly check the fuse block for blown
fuses. For proper location of airbag fuses, refer to “Fuses
(Integrated Power Module)” in Section 7. See your au-
thorized dealer if the fuse is good.
Event Data Recorder (EDR)
In the event of an accident, your vehicle is designed to
record up to approximately five seconds of specific
vehicle data parameters (see the following list) in an
event data recorder prior to the moment of airbag de-
ployment, or near deployment, and up to a quarter-
second of high-speed deceleration data during and/or
after airbag deployment. EDR data are ONLY recorded if
an airbag deploys, or nearly deploys, and are otherwise
unavailable.
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INSTRUMENT CLUSTER DESCRIPTION
1. Check GaugesThis light illuminates when the Voltmeter, Engine
Oil Pressure or Engine Coolant Temperature
gauges indicate a reading either too high or too low.
Examine the gauges carefully, and follow the instructions
contained below for each indicated problem.
NOTE: When the ignition switch is turned to OFF, the
Fuel Gauge, Voltmeter, Oil Pressure and Engine Coolant
Temperature gauges may not show accurate readings.
When the engine is not running, turn the ignition switch
to ON to obtain accurate readings.
2. Voltmeter When the engine is running, the gauge indicates
the electrical system voltage. The pointer should
stay within the normal range if the battery is charged. If the pointer moves to either extreme left or right and
remains there during normal driving, the electrical sys-
tem should be serviced.
NOTE:
•If the gauge pointer moves to either extreme of the
gauge, the “Check Gauges” indicator will illuminate
and a single chime will sound.
•The voltmeter may show a gauge fluctuation at vari-
ous engine temperatures. This cycling operation is
caused by the post-heat cycle of the intake manifold
heater system. The number of cycles and the length of
the cycling operation is controlled by the engine
control module. Post-heat operation can run for sev-
eral minutes, and then the electrical system and volt-
meter needle will stabilize.
3. Turn Signal Indicators Lights in instrument cluster flash when outside turn
signals are operating.
162 UNDERSTANDING YOUR INSTRUMENT PANEL

4. Tachometer
The tachometer indicates engine speed in revolutions per
minute.
CAUTION!
Do not operate the engine with the tachometer
pointer at high rpm for extended periods. Engine
damage may occur.
5. Airbag Warning Light The indicator lights and remains lit for six to
eight seconds when the ignition is first turned
on. If the light stays on, flickers or comes on
while driving, have the airbag system checked
by an authorized dealer.
6. High Beam Indicator This indicator shows that headlights are on high
beam. 7. Seat Belt Reminder Light
When the ignition switch is first turned ON, this
light will turn on for five to eight seconds as a bulb
check. During the bulb check, if the driver’s seat
belt is unbuckled, a chime will sound. After the bulb
check or when driving, if the driver seat belt remains
unbuckled, the Seat Belt Warning Light will flash or
remain on continuously. Refer to \6Enhanced Driver Seat
Belt Reminder System (BeltAlert\3)\6 under “Occupant
Restraints” in section 2.
8. Speedometer
The speedometer shows the vehicle speed in miles per
hour and/or kilometers per hour.
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9. Oil Pressure GaugeThe pointer should always indicate some oil pres-
sure when the engine is running. A continuous
high or low reading, under normal driving conditions,
may indicate a lubrication system malfunction. Immedi-
ate service should be obtained.
NOTE: If the gauge pointer moves to either extreme of
the gauge, the “Check Gauges” indicator will illuminate
and a single chime will sound.
10. Transfer Case Position
This display indicator shows the transfer case position
selection.
For additional information refer to “Four-Wheel Drive
Operation” in Section 5 of this manual. 11 .
TOW HAUL
The TOW HAUL button is located at the end of
the shift lever. This light will illuminate when
the TOW HAUL OD/OFF button is pushed
once.
12. OD/OFF
the OD/OFF button is located at the end of the shift lever.
This light will illuminate when the TOW HAUL OD/OFF
button is pushed twice.
13. Temperature Gauge The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range
indicates that the engine cooling system is operat-
ing satisfactorily.
164 UNDERSTANDING YOUR INSTRUMENT PANEL

18. Malfunction Indicator Light (MIL)The Malfunction Indicator Light (MIL) is part of
an onboard diagnostic system which monitors
the emissions and engine control system. If the
vehicle is ready for emissions testing the light will come
on when the ignition is first turned on and remain on, as
a bulb check, until the engine is started. If the vehicle is
not ready for emissions testing the light will come on
when the ignition is first turned on and remain on for
15 seconds, then blink for five seconds, and remain on
until the vehicle is started. If the bulb does not come on
during starting, have the condition investigated
promptly.
If this light comes on and remains on while driving, it
suggests a potential engine control problem and the need
for system service. Although your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability.
If the MIL is flashing, severe catalytic converter
damage and power loss will soon occur. Immediate
service is required.
19. Brake Warning Light This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on, it may
indicate that the parking brake is applied, that
the brake fluid level is low, or that there is a problem with
the anti-lock brake system reservoir.
168 UNDERSTANDING YOUR INSTRUMENT PANEL

Operation of the Brake Warning Light can be checked by
turning the ignition switch from the OFF position to the
ON position. The light should illuminate for approxi-
mately two seconds. The light should then turn off unless
the parking brake is applied or a brake fault is detected.
If the light does not illuminate, have the light inspected
by an authorized dealer.
The light also will turn on when the parking brake is
applied with the ignition switch in the ON position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake application.
20. Anti-Lock Brake (ABS) Light This light monitors the Anti-Lock Brake System
(ABS). The light will turn on when the ignition
switch is turned to the ON position and may
stay on for as long as four seconds. If the ABS light remains on or turns on while driving, it
indicates that the Anti-Lock portion of the brake system
is not functioning and that service is required. However,
the conventional brake system will continue to operate
normally if the BRAKE warning light is not on.
If the ABS light is on, the brake system should be serviced
as soon as possible to restore the benefits of Anti-Lock
brakes. If the ABS light does not turn on when the
Ignition switch is turned to the ON position, have the
light inspected by an authorized dealer.
21. Electronic Throttle Control (ETC)
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. If a
problem is detected, the light will come on
while the engine is running. If the light remains
lit with the engine running your vehicle will usually be
drivable, however, see your authorized dealer for service
as soon as possible. If the light is flashing when the
170 UNDERSTANDING YOUR INSTRUMENT PANEL

engine is running, immediate service is required and you
may experience reduced performance, an elevated/
rough idle or engine stall and your vehicle may require
towing. The light will come on when the ignition is first
turned on and remain on for 15 seconds as a bulb check.
If the light does not come on during starting, have the
system checked by an authorized dealer.
22. SERV 4WD IndicatorThe 4WD indicator will be illuminated when-
ever the 4WD mode is engaged for either the
manual or electric shift 4WD systems. The
SERV 4WD indicator monitors the electric shift
4WD system. If the SERV 4WD light stays on or comes on
during driving, it means that the 4WD system is not
functioning properly and that service is required. 23. Transmission Temperature Indicator (Automatic
Transmissions Only)
This light indicates that there is excessive trans-
mission fluid temperature that might occur
with severe usage such as trailer towing. It may
also occur when operating the vehicle in a high
torque converter slip condition, such as 4-wheel drive
operation (e.g., snow plowing, off-road operation). If this
light comes on, stop the vehicle and run the engine at idle
or faster, with the transmission in NEUTRAL until the
light goes off.
24. Odometer/Trip Odometer Button
Press this button to toggle between the odometer and the
trip odometer display. Holding the button in resets the
trip odometer reading when in trip mode.
25. Fuel Gauge
Shows level of fuel in tank when ignition switch is in the
ON position.
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