light Ram 3500 2017 Repair Manual

INSTRUMENT PANEL FEATURES
1 — Headlight Switch7 — 115v Power Inverter Outlet13 — Gear Selector/Transfer Case Position
Switch — If Equipped
2 — Instrument Cluster 8 — Power Outlet — If Equipped
14 — Ignition Switch
3 — Radio 9 — Lower Switch Bank
15 — Hood Release
4 — Hazard Switch 10 — Instrument Panel Drawer
16 — Parking Brake Release
5 — Upper Glove Compartment 11 — Climate Controls
6 — Lower Glove Compartment 12 — Power Outlet/Cigar Lighter —
If Equipped
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UNDERSTANDING YOUR INSTRUMENT PANEL 235

7. Temperature Gauge•The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge pointer will likely indicate a higher tem-
perature when driving in hot weather, up mountain
grades, or when towing a trailer. It should not be
allowed to exceed the upper limits of the normal
operating range.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle”. Follow the warnings under the Cooling System
Pressure Cap paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
WARNING AND INDICATOR LIGHTS
The warning / indicator lights switch on in the instrument
panel together with a dedicated message and/or acoustic
signal when applicable. These indications are indicative
and precautionary and as such must not be considered as
exhaustive and/or alternative to the information contained
in the Owner ’s Manual, which you are advised to read
carefully in all cases. Always refer to the information in this
chapter in the event of a failure indication.
All active telltales will display first if applicable. The
system check menu may appear different based upon
equipment options and current vehicle status. Some tell-
tales are optional and may not appear.
240 UNDERSTANDING YOUR INSTRUMENT PANEL

Red Telltale Indicator Lights
Seat Belt Reminder Warning Light
Red TelltaleLight What It Means
Seat Belt Reminder Warning Light
When the ignition is first placed in the ON/RUN position, if the driver ’s seat belt is unbuckled, a
chime will sound and the light will turn on. When driving, if the driver or front passenger seat
belt remains unbuckled, the Seat Belt Reminder Light will flash or remain on continuously and a
chime will sound. Refer to “Occupant Restraints” in “Things To Know Before Starting Your Ve-
hicle” for further information.
Air Bag Warning Light
Red Telltale
Light What It Means
Air Bag Warning Light
This light will turn on for four to eight seconds as a bulb check when the ignition is placed in the
ON/RUN position. If the light is either not on during startup, stays on, or turns on while driv-
ing, have the system inspected at an authorized dealer as soon as possible. This light will illumi-
nate with a single chime when a fault with the Air Bag Warning Light has been detected, it will
stay on until the fault is cleared. If the light comes on intermittently or remains on while driving,
have an authorized dealer service the vehicle immediately.
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UNDERSTANDING YOUR INSTRUMENT PANEL 241

Brake Warning Light
Red TelltaleLight What It Means
English
Metric
Brake Warning Light
This light monitors various brake functions, including brake fluid level and parking brake appli-
cation. 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.
If the light remains on when the parking brake has been disengaged, and the fluid level is at the
full mark on the master cylinder reservoir, it indicates a possible brake hydraulic system mal-
function or that a problem with the Brake Booster has been detected by the Anti-Lock Brake Sys-
tem (ABS) / Electronic Stability Control (ESC) system. In this case, the light will remain on until
the condition has been corrected. If the problem is related to the Brake Booster, the ABS pump
will run when applying the brake, and a brake pedal pulsation may be felt during each stop.
NOTE:
Brake Warning Light may illuminate due to excessive wear to brake pads.
242 UNDERSTANDING YOUR INSTRUMENT PANEL

The dual brake system provides a reserve braking capacity
in the event of a failure to a portion of the hydraulic
system. A leak in either half of the dual brake system is
indicated by the Brake Warning Light, which will turn on
when the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level conditions.
The vehicle should have service performed, and the brake
fluid level checked.
If brake failure is indicated, immediate repair is necessary.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have failed. It
will take longer to stop the vehicle. You could have a
collision. Have the vehicle checked immediately. Vehicles equipped with the Anti-Lock Brake System (ABS)
are also equipped with Electronic Brake Force Distribution
(EBD).
CAUTION!
In the event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light. Immedi-
ate repair to the ABS system is required.
Operation of the Brake Warning Light can be checked by
placing the ignition in the ON/RUN position. The light
should illuminate for approximately 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 placed in the ON/RUN position.
NOTE: This light shows only that the parking brake is
applied. It does not show the degree of brake application.4
UNDERSTANDING YOUR INSTRUMENT PANEL 243

Vehicle Security Warning Light — If Equipped
Red TelltaleLight What It Means
Vehicle Security Warning Light — If Equipped
This light will flash at a fast rate for approximately 15 seconds when the vehicle security alarm is
arming, and then will flash slowly until the vehicle is disarmed.
Engine Temperature Warning Light
Red Warning
Light What It Means
Engine Temperature Warning Light
This light warns of an overheated engine condition. As engine coolant temperatures rise and the
gauge approaches
H, this indicator will illuminate and a single chime will sound after reaching a
set threshold. Further overheating will cause a continuous chime sound for 4 minutes, or until
the engine is allowed to cool, whichever comes first.
If the light turns on while driving, safely pull over and stop the vehicle. If the A/C system is on,
turn it off. Also, shift the transmission into NEUTRAL and idle the vehicle. If the temperature
reading does not return to normal, turn the engine off immediately and call for service. Refer to
“If Your Engine Overheats” in “What To Do In Emergencies” for further information.
244 UNDERSTANDING YOUR INSTRUMENT PANEL

Battery Charge Warning Light
Red TelltaleLight What It Means
Battery Charge Warning Light
This light illuminates when the battery is not charging properly. If it stays on while the engine is
running, there may be a malfunction with the charging system. Contact your authorized dealer as
soon as possible. This indicates a possible problem with the electrical system or a related compo-
nent.
Oil Pressure Warning Light
Red Telltale
Light What It Means
Oil Pressure Warning Light
This light indicates low engine oil pressure. If the light turns on while driving, stop the vehicle
and shut off the engine as soon as possible. A chime will sound when this light turns on.
Do not operate the vehicle until the cause is corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be checked under the hood.
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UNDERSTANDING YOUR INSTRUMENT PANEL 245

Electronic Throttle Control (ETC) Warning Light
Red TelltaleLight What It Means
Electronic Throttle Control (ETC) Warning Light
This light informs you of a problem with the Electronic Throttle Control (ETC) system. If a prob-
lem is detected while the engine is running, the light will either stay on or flash depending on
the nature of the problem. Cycle the ignition key when the vehicle is safely and completely
stopped and the transmission is placed in the PARK position. The light should turn off. If the
light remains on with the engine running, your vehicle will usually be drivable; however, see an
authorized dealer for service as soon as possible.
If the light continues to flash when the 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 to ON/RUN and
remain on briefly as a bulb check. If the light does not come on during starting, have the system
checked by an authorized dealer.
246 UNDERSTANDING YOUR INSTRUMENT PANEL

Electric Power Steering Fail Warning Light — If Equipped
Red TelltaleLight What It Means
Electric Power Steering Fail Warning — If Equipped
This light is used to manage the electrical warning of the EPS (Electric Power Steering). Refer to
“Power Steering” in “Starting And Operating” for further information.
Trailer Brake Disconnected Warning Light
Red Warning
Light What It Means
Trailer Brake Disconnected Warning Light
This telltale is on when the Trailer Brake has been disconnected.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 247

Door Open Warning Light
Red TelltaleLight What It Means
Door Open Warning Light
This indicator will illuminate when a door is open and not fully closed.
NOTE:
If the vehicle is moving there will also be a single chime.
NOTE: Door Open Warning Light will differ depending on
the equipped instrument cluster display.
248 UNDERSTANDING YOUR INSTRUMENT PANEL