2020 Ram 1500 bulb

8
LANESENSE — IF EQUIPPED ...................................... 391
LaneSense Operation .................................................. 391
Turning LaneSense On Or Off ................................... 391
LaneSense Warning Message .................................... 392
Changing LaneSense Status ....................................... 395
 PARKVIEW REAR BACK UP CAMERA ...................... 396
 SURROUND VIEW CAMERA SYSTEM — IF
EQUIPPED ......................................................................... 398
 REFUELING THE VEHICLE .......................................... 403
 VEHICLE LOADING ....................................................... 405
Gross Vehicle Weight Rating (GVWR) .................... 405
Payload.......................................................................... 405
Gross Axle Weight Rating (GAWR) ......................... 406
Tire Size......................................................................... 406
Rim Size ........................................................................ 406
Inflation Pressure......................................................... 406
Curb Weight ................................................................. 406
Loading ......................................................................... 406
 TRAILER TOWING .......................................................... 407
Common Towing Definitions .................................... 407
Trailer Hitch Type and Maximum Trailer
Weight ........................................................................... 411
Trailer Towing Weights (Maximum Trailer Weight
Ratings) ......................................................................... 413
Trailer And Tongue Weight .......................................413
Towing Requirements ................................................413
Towing Tips .................................................................420
 SNOWPLOW .................................................................... 421
 RECREATIONAL TOWING (BEHIND MOTORHOME,
ETC.) ...................................................................................422
Towing This Vehicle Behind Another Vehicle ........422
Recreational Towing — Two-Wheel Drive
Models ...........................................................................423
Recreational Towing — Four-Wheel Drive
Models ...........................................................................423
 DRIVING TIPS ...................................................................427
Driving On Slippery Surfaces ...................................427
Driving Through Water .............................................427
Off-Road Driving Tips ................................................429
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS................................. 431
 ASSIST AND SOS SYSTEM — IF EQUIPPED ..............431
 BULB REPLACEMENT ....................................................436
Replacement Bulbs ......................................................436
Replacing Exterior Bulbs ............................................438
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GETTING TO KNOW YOUR VEHICLE 31
SENTRY KEY
The Sentry Key Immobilizer system prevents unauthorized
vehicle operation by disabling the engine. The system does
not need to be armed or activated. Operation is automatic,
regardless of whether the vehicle is locked or unlocked.
The system uses a key fob, keyless push button ignition and
a Radio Frequency (RF) receiver to prevent unauthorized
vehicle operation. Therefore, only key fobs that are
programmed to the vehicle can be used to start and operate
the vehicle. The system cannot reprogram a key fob obtained
from another vehicle.
After placing the ignition switch in the ON/RUN position,
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 addi-
tion, if the light begins to flash after the bulb check, it indi -
cates that someone attempted to start the engine with an
invalid key fob. In the event that a valid key fob is used to
start the engine but there is an issue with the vehicle elec -
tronics, the engine will start and shut off after two seconds. If the vehicle security light turns on during normal vehicle
operation (vehicle running for longer than ten seconds), it
indicates that there is a fault in the electronics. Should this
occur, have the vehicle serviced as soon as possible by an
authorized dealer.
All of the key fobs provided with your new vehicle have
been programmed to the vehicle electronics.
Key Programming
Programming key fobs may be performed at an authorized
dealer.
CAUTION!
The Sentry Key Immobilizer system is not compatible
with some aftermarket remote starting systems. Use of
these systems may result in vehicle starting problems
and loss of security protection.
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GETTING TO KNOW YOUR VEHICLE 71
Lights-On Reminder
If the headlights, parking lights, or cargo lights are left on
after the ignition is placed in the OFF position, a chime will
sound when the driver’s door is opened.
Front Fog Lights — If Equipped
To activate the front fog lights, turn on the parking lights or
low beam headlights and push in the center of the headlight
switch control knob. Pushing the headlight switch control
knob a second time will turn the front fog lights off.Front Fog Light Switch If the fog lights are off, one of the fog lights will illuminate
depending on the direction in which the vehicle is turning.
This will provide increased visibility while turning,
depending on the angle of the steering wheel.
Turn Signals
Move the multifunction lever up or down and the arrows on
each side of the instrument cluster display will flash to show
proper operation of the front and rear turn signal lights.
NOTE:
If either light remains on and does not flash, or there is a very
fast flash rate, check for a defective outside light bulb. If an
indicator fails to light when the lever is moved, it would
suggest that the indicator bulb is defective.
Lane Change Assist — If Equipped
Tap the multifunction lever up or down once, without
moving beyond the detent, and the turn signal (right or left)
will flash three times then automatically turn off.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 179
Red Warning Lights
— Seat Belt Reminder Warning Light
This warning light indicates when the driver or passenger
seat belt is unbuckled. When the ignition is first placed in the
ON/RUN or ACC/ON/RUN position and 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 Restraint Systems” in “Safety” for
further information.
— Air Bag Warning Light
This warning light will illuminate to indicate a fault with the
air bag, and will turn on for four to eight seconds as a bulb
check when the ignition is placed in the ON/RUN or ACC/
ON/RUN position. This light will illuminate with a single
chime when a fault with the air bag has been detected, it will
stay on until the fault is cleared. If the light is either not on
during startup, stays on, or turns on while driving, have the
system inspected at an authorized dealer as soon as possible. — Brake Warning Light
This warning 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.
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 malfunction or that a problem with the
Brake Booster has been detected by the Anti-Lock Brake
System (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.
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 spec -
ified level.
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182 GETTING TO KNOW YOUR INSTRUMENT PANEL
NOTE:
This light may turn on if the accelerator and brake pedals are
pressed at the same time.
If the light continues to flash when the vehicle 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 placed in the ON/RUN or
ACC/ON/RUN position 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. — Electric Power Steering Fault Warning Light

This warning light will turn on when there's a fault with the
Electric Power Steering (EPS) system. Refer to “Power Steering”
in “Starting And Operating” for further information.
— Tailgate Open Warning Light
This warning light will illuminate when the tailgate is open.
NOTE:
If the vehicle is moving, there will also be a single chime.
— Trailer Brake Disconnected Warning Light
This warning light will illuminate when the Trailer Brake has
been disconnected.
— Transmission Temperature Warning Light — If
Equipped
This warning light will illuminate to warn of a high transmis -
sion fluid temperature. This may occur with strenuous usage
such as trailer towing. If this light turns on, stop the vehicle
and run the engine at idle or slightly faster, with the trans -
mission in PARK or NEUTRAL, until the light turns off.
Once the light turns off, you may continue to drive normally.
WARNING!
Continued operation with reduced assist could pose a
safety risk to yourself and others. Service should be
obtained as soon as possible.
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is illuminated
you could cause the fluid to boil over, come in contact
with hot engine or exhaust components and cause a fire.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 183
— Door Open Warning Light
This indicator will illuminate when a door is ajar/open and
not fully closed.
NOTE:
If the vehicle is moving there will also be a single chime.
Yellow Warning Lights
— Adaptive Cruise Control (ACC) Fault Warning Light
— If Equipped
This warning light will illuminate to indicate a fault in the
ACC system. Contact a local authorized dealer for service.
For further information, refer to “Adaptive Cruise Control
(ACC)” in “Starting And Operating.”
— Air Suspension Fault Warning Light — If Equipped
This light will illuminate when a fault is detected with the air
suspension system. — Engine Check/Malfunction Indicator Warning Light
(MIL)
The Engine Check/Malfunction Indicator Light (MIL) is a
part of an Onboard Diagnostic System called OBD II that
monitors engine and automatic transmission control
systems. This warning light will illuminate when the ignition
is in the ON/RUN position before engine start. If the bulb
does not come on when turning the ignition switch from OFF
to ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap, poor
quality fuel, etc., may illuminate the light after engine start.
The vehicle should be serviced if the light stays on through
several typical driving styles. In most situations, the vehicle
will drive normally and will not require towing.
When the engine is running, the MIL may flash to alert
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced by an authorized dealer as soon as
possible if this occurs.
CAUTION!
Continuous driving with the Transmission Temperature
Warning Light illuminated will eventually cause severe
transmission damage or transmission failure.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 193
— Turn Signal Indicator Lights
When the left or right turn signal is activated, the turn signal
indicator will flash independently and the corresponding
exterior turn signal lamps will flash. Turn signals can be acti -
vated when the multifunction lever is moved down (left) or
up (right).
NOTE:
• A continuous chime will sound if the vehicle is driven more than 1 mile (1.6 km) with either turn signal on.
• Check for an inoperative outside light bulb if either indi -
cator flashes at a rapid rate.
• If equipped with fog lamps, the fog lamp on the side of the activated turn signal will also illuminate to provide addi -
tional light when turning.
— Cruise Control SET Indicator Light — If Equipped
With 7 Inch Instrument Cluster Display
This light will turn on when the speed control is set.
Refer to “Speed Control” in “Starting And Operating” for
further information. — Stop/Start Active Indicator Light — If Equipped
This indicator light will illuminate when the Stop/Start func -
tion is in “Autostop” mode.
— 4WD AUTO Indicator Light — If Equipped
This light alerts the driver that the vehicle is in the
four-wheel drive auto mode, and the front axle is engaged,
but the vehicle's power is sent to the rear wheels. Four-wheel
drive will be automatically engaged when the vehicle senses
a loss of traction.
For further information on four-wheel drive operation and
proper use, refer to “Four-Wheel Drive Operation — If
Equipped” in “Starting And Operating.”
White Indicator Lights
— Adaptive Cruise Control (ACC) Ready Light — If
Equipped
This light will illuminate when the vehicle equipped with
Adaptive Cruise Control (ACC) has been turned on but not
set.
Refer to “Adaptive Cruise Control (ACC) — If Equipped” in
“Starting And Operating” for further information.
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196 GETTING TO KNOW YOUR INSTRUMENT PANEL
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 depleted 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 posi -
tion, you will see the “Malfunction Indicator Light (MIL)”
symbol come on as part of a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
• The MIL will flash for about 10 seconds and then return to being fully illuminated until you turn OFF the igni -
tion or start the engine. This means that your vehicle's
OBD II system is not ready and you should not proceed
to the I/M station.
• The MIL will not flash at all and will remain fully illu -
minated until you place the ignition in the off position
or start the engine. This means that your vehicle's OBD
II system is ready and you can proceed to the I/M
station.
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