2015 Ram 2500 bulb

•Oil Temperature Warning Light
This telltale indicates engine oil temperature is
high. If the light turns on while driving, stop
the vehicle and shut off the engine as soon as
possible.
• Charging System Light
This light shows the status of the electrical charg-
ing system. If the light stays on or comes on while
driving, turn off some of the vehicle’s non-essential
electrical devices or increase engine speed (if at idle). If
the charging system light remains on, it means that the
vehicle is experiencing a problem with the charging
system. OBTAIN SERVICE IMMEDIATELY. See an au-
thorized dealer.
Refer to “Jump Starting Procedures” in “What To Do In
Emergencies” if jump starting is required. •
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. You may experience reduced performance, an
elevated/rough idle or engine stall and your vehicle may
require towing.
308 UNDERSTANDING YOUR INSTRUMENT PANEL

•Oil Pressure Warning Light
This telltale 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 show how much oil is in the engine.
The engine oil level must be checked under the hood.
• Oil Temperature Warning Light
This telltale indicates engine oil temperature is
high. If the light turns on while driving, stop the
vehicle and shut off the engine as soon as possible.
•Charging System Light
This light shows the status of the electrical charging
system. If the light stays on or comes on while
driving, turn off some of the vehicle’s non-essential elec-
trical devices or increase engine speed (if at idle). If the charging system light remains on, it means that the vehicle
is experiencing a problem with the charging system. OB-
TAIN SERVICE IMMEDIATELY. See an authorized dealer.
Refer to “Jump Starting Procedures” in “What To Do In
Emergencies” if jump starting is required.
•
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.
336 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Adding Washer Fluid ..................768
▫ Exhaust System ..................... .768
▫ Cooling System ..................... .771
▫ Brake System ....................... .778
▫ Rear Axle And 4x4 Front Driving Axle Fluid
Level ............................. .780
▫ Transfer Case ....................... .782
▫ Automatic Transmission ................782
▫ Appearance Care And Protection From
Corrosion .......................... .786
 FUSES ............................. .794
▫ Power Distribution Center ...............795
 VEHICLE STORAGE ....................803
 REPLACEMENT BULBS .................804 
BULB REPLACEMENT ..................805
▫ Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park
And Turn — If Equipped ...............806
▫ Fog Lamps — If Equipped ..............808
▫ Rear Tail/Stop, Turn Signal And Backup
Lamps ............................ .808
▫ Center High-Mounted Stoplamp (CHMSL) With
Cargo Lamp ........................ .810
▫ Cab Top Clearance Lamps — If Equipped . . . .811
▫ Rear Lamp Bar ID Marker (Dual Rear Wheels) —
If Equipped ......................... .813
▫ Side Marker Lamps (Dual Rear Wheels) —
If Equipped ........................ .814
 FLUID CAPACITIES ....................815
742 MAINTAINING YOUR VEHICLE

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
notbe 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 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. Cycle the ignition switch to the ON position, but do not crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the Malfunction Indicator Light
(MIL) symbol come on as part of a normal bulb check.
748 MAINTAINING YOUR VEHICLE

REPLACEMENT BULBS
All of the inside bulbs are brass or glass-wedge base.
Aluminum base bulbs are not approved.
Interior Bulbs
Bulb Number
Overhead Console
Lamps TS 212–9
Dome Lamp 7679
For lighted switches, see your authorized dealer for
replacement instructions.
Exterior Bulbs
Bulb Number
Base Quad Headlamp –
Low Beam H11LL
Base Quad Headlamp –
High Beam 9005LL
Front Turn Signal Lamp
(Base Quad Headlamp) 3157NA
Premium Bi Halogen
Projector Headlamp -
Low Beam HIR2LL
Premium Bi Halogen
Projector Headlamp -
High Beam 9005LL
Front Turn Signal Lamp
(Premium Headlamp) LED (Serviced at Autho-
rized Dealer)
Fog Lamp (Horizontal 9145
804 MAINTAINING YOUR VEHICLE

Bulb Number
shape)
Fog Lamp (Vertical
shape) 9006
Center High Mounted
Stop Lamp (CHMSL) 921K
Rear Cargo Lamp 921
LED Center High
Mounted Stop Lamp
(CHMSL)/Cargo Lamp LED (Serviced at Autho-
rized Dealer)
Cab Roof Marker Lamps 194NA
Base Rear Tail/Turn and
Stop Lamp 3157K
Premium Rear Tail/Turn
and Stop Lamp LED (Serviced at Autho-
rized Dealer)
Premium Backup Lamp 7440/W21W
Rear Lamp Bar ID 194Bulb Number
Marker Lamp
Side Marker Lamps
(Dual Rear Wheels) 194
Backup Lamp 921
Rear License Plate Lamp 194
BULB REPLACEMENT
NOTE:Lens fogging can occur under certain atmo-
spheric conditions. This will usually clear as atmospheric
conditions change to allow the condensation to change
back into a vapor. Turning the lamps on will usually
accelerate the clearing process.
7
MAINTAINING YOUR VEHICLE 805

8. Reach through the access hole of the wheel housesplash shield and lift the slide lock upward far enough
to disengage it from the lock post on the back of the
front lamp unit housing. 9. Remove the headlamp assembly. Grasp the outboard
edge of the lamp and pull it straight forward to
disengage the ball stud from the plastic grommet.
10. Disconnect the wiring harness connectors from the bulb socket.
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.
Slide Lock
7
MAINTAINING YOUR VEHICLE 807

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 ¼ 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.
Rear Tail/Stop, Turn Signal And Backup Lamps
1. Remove the two screws that pass through the bed sheetmetal.
Tail Lamp Screw Locations
808 MAINTAINING YOUR VEHICLE