bulb RAM CHASSIS CAB 2011 User Guide

• Electronic Speed Control Light
This light will turn on when the electronic
speed control is ON.
• Electronic Throttle Control (ETC) Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. The
light will come on when the ignition is first
turned ON 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.
If a problem is detected, the light will come on while the
engine is running. Cycle the ignition key when the
vehicle has completely stopped and the shift lever is
placed in the PARK position. The light should turn off. If the light remains lit with the engine running your
vehicle, will usually be drivable, however, see an autho-
rized dealer for service as soon as possible. If the light is
flashing 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.
• Engine Temperature Warning Light
This light warns of an overheated engine condi-
tion. As temperatures rise and the gauge ap-
proaches H, this indicator will illuminate and a
single chime will sound after reaching a set threshold.
Further overheating will cause the temperature gauge to
pass H, the indicator will continuously flash and a
continuous chime will occur until the engine is allowed
to cool.
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,198 UNDERSTANDING YOUR INSTRUMENT PANEL

▫ Exhaust System ..................... 390
▫ Cooling System ..................... 392
▫ Brake System ....................... 398
▫ Rear Axle And 4X4 Front Driving Axle Fluid
Level ............................. 400
▫ Transfer Case ....................... 401
▫ Automatic Transmission ............... 402
▫ Appearance Care And Protection From
Corrosion .......................... 405
 Fuses .............................. 410
▫ Totally Integrated Power Module ......... 410
 Vehicle Storage ....................... 415  Replacement Bulbs .................... 415
 Bulb Replacement ..................... 416
▫ Dual Or Quad Headlamp/Front Park And
Turn Signal – If Equipped .............. 416
▫ Fog Lamps – If Equipped .............. 418
▫ Center High-Mounted Stoplamp (CHMSL)
With Cargo Lamp .................... 419
▫ Cab Top Clearance Lamps – If Equipped .... 420
 Fluid Capacities ...................... 422
 Fluids, Lubricants And Genuine Parts ....... 423
▫ Engine ............................ 423
▫ Chassis ........................... 424376 MAINTAINING YOUR VEHICLE

the SELECT button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing. Normally, the OBD II system will be ready. The OBD II
system may not be ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Turn the ignition switch to the ON position, but do not
crank or start the engine.
2. If you crank or start the engine, you will have to start
this test over.
3. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
7 MAINTAINING YOUR VEHICLE 379

VEHICLE STORAGE
If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to mini-
mize the drain on your vehicle’s battery:
• Disconnect the Ignition-Off Draw (IOD) fuse located in
the Integrated Power Module, located in the engine
compartment. The IOD cavity includes a snap-in re-
tainer that allows the fuse to be disconnected without
removing it from the fuse block.
• As an alternative to the above steps you may discon-
nect the negative cables from both batteries.
• Any time you store your vehicle or keep it out of
service (i.e., vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again. NOTE:
• When reinstalling the IOD fuse push firmly until fully
seated; the gauges in the instrument cluster will do a
full sweep when the ignition switch is turned to the
RUN position. This is a normal condition.
• When the vehicle is shipped from the factory, the IOD
fuse is in the up or extracted position. If the radio,
interior lamps, keyless entry or other features do not
work with the key OFF, check the position of the fuse
(or check to see if the fuse is blown) to ensure that it is
fully seated. When the IOD fuse is extracted, the
instrument cluster in the odometer window will dis-
play  NO FUSE.”
REPLACEMENT BULBS
LIGHT BULBS – Interior Bulb No.
Overhead Console Lamps ............... TS 212-2
Dome Lamp ........................... 7679
7 MAINTAINING YOUR VEHICLE 415

NOTE: For lighted switches, see your authorized dealer
for replacement instructions.
All of the inside bulbs are brass or glass-wedge base.
Aluminum base bulbs are not approved.
LIGHT BULBS – Exterior Bulb No.
Center High Mounted Stop Lamp (CHMSL) ..... 921
Fog Lamp ............................. 9145
Dual Headlamp ......................... H13
Quad Headlamp – Low Beam ............... H11
Quad Headlamp – High Beam .............. 9005
Side Marker (Dual Headlamp) ............. 3157K
Side Marker (Quad Headlamp) ............ 3157NA
Rear Cargo Lamp ........................ 921
Cab Roof Marker Lamps ................. 194NA BULB REPLACEMENT
Dual or Quad Headlamp/Front Park and Turn
Signal – If Equipped
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Remove the four plastic push-in fasteners that secure
the upper radiator seal to the grille support and both
fender ledges.
4. Remove the two plastic push-in rivets that secure the
upper radiator seal to the radiator.
5. Remove the upper radiator seal from the vehicle.
6. Remove the two headlamp assembly attachment
screws.416 MAINTAINING YOUR VEHICLE

10. Disconnect electrical connectors.
11. Replace bulb(s) as necessary.
CAUTION!• Do not contaminate the bulb glass by touching it
with your fingers or by allowing it to contact other
oily surfaces. Shortened bulb life will result.
• Always use the correct bulb size and type for
replacement. An incorrect bulb size or type may
overheat and cause damage to the lamp, the bulb
socket, or the lamp wiring.
NOTE: There are access covers over both headlamp
bulb access holes in the quad front lamp unit housing (if
equipped). These covers MUST be reinstalled after the
bulb has been replaced. Fog Lamps – If Equipped
1. Reach under and behind the front bumper to access
the back of the front fog lamp housing.
2. Disconnect the fog lamp wiring harness connector
from the fog lamp bulb.
3. Rotate the bulb counterclockwise 1
4
turn to unlock the
bulb from the housing.
4. Pull the bulb straight out from the housing.
CAUTION!Do not contaminate the bulb glass by touching it
with your fingers or by allowing it to contact other
oily surfaces. Shortened bulb life will result.418 MAINTAINING YOUR VEHICLE

Center High-Mounted Stoplamp (CHMSL) With
Cargo Lamp
1. Remove the two screws holding the housing/lens to
the body as shown. 2. Separate the connector holding the housing and wir-
ing harness to the body.
3. Turn the desired bulb socket 1
4
turn and remove the
socket and bulb from housing.
7 MAINTAINING YOUR VEHICLE 419

4. Pull the desired bulb straight from the socket.
CAUTION!Do not contaminate the bulb glass by touching it
with your fingers or by allowing it to contact other
oily surfaces. Shortened bulb life will result.
• Outside Bulbs: Cargo Lamps • Inside Bulb: Center High-Mounted Stop Lamp
5. Reverse the procedure for installation of bulbs and
housing.
Cab Top Clearance Lamps – If Equipped
1. Remove the two screws from the top of the lamp.420 MAINTAINING YOUR VEHICLE

2. Rotate the socket 1
4
turn and pull it from the lamp
assembly. 3. Pull the bulb straight from it’s socket and replace.
7 MAINTAINING YOUR VEHICLE 421

Automatic Transmission
Adding Fluid ......................... 403
Fluid and Filter Changes ................. 404
Fluid Level Check ................... 402,403
Fluid Type ........................ 402,424
Shifting ............................. 268
Special Additives ...................... 404
Axle Fluid ....................... 400,401,424
Axle Lubrication (Axle Fluid) ............ 400,401
Battery ............................... 385
Keyless Transmitter Replacement (RKE) ....... 24
Saving Feature (Protection) ............... 144
Belts, Seat ............................ 38,73
Body Builders Guide ....................... 6
Body Mechanism Lubrication ............... 388
B-Pillar Location ........................ 300
Brake Fluid ......................... 398,424 Brake System ........................ 292,398
Anti-Lock (ABS) ....................... 292
Fluid Check .......................... 398
Master Cylinder ....................... 398
Parking ............................. 289
Warning Light ........................ 187
Brake/Transmission Interlock ............... 267
Bulb Replacement ....................... 416
Bulbs, Light .......................... 76,415
Cab Top Clearance Lights .................. 420
Calibration, Compass ..................... 204
Capacities, Antifreeze (Engine Coolant) ........ 422
Capacities, Fluid ........................ 422
Caps, Filler
Oil (Engine) .......................... 383
Power Steering ........................ 289
Radiator (Coolant Pressure) ............... 395
Car Washes ............................ 405
10 INDEX 455