2021 RAM CHASSIS CAB warning light

3
EXTERIOR LIGHTS.................................................50 Headlight Switch .......................................... 50
Multifunction Lever ...................................... 51
Daytime Running Lights (DRLs) ................. 51
High/Low Beam Switch ............................... 51
Automatic High Beam Headlamp
Control — If Equipped .................................. 52 Flash-To-Pass ............................................... 52
Automatic Headlights — If Equipped ......... 52
Directional LED Headlamp
System — If Equipped .................................. 52 Parking Lights And Panel Lights ................. 53
Automatic Headlights With Wipers ............. 53
Headlight Delay ............................................ 53
Lights-On Reminder ..................................... 53
Front Fog Lights — If Equipped .................. 53
Turn Signals ................................................. 54
Lane Change Assist — If Equipped ............. 54
Cargo Lights/Trailer Spotter Lights — If
Equipped ...................................................... 54 Battery Saver................................................ 54
INTERIOR LIGHTS ................................................55
Courtesy Lights ............................................ 55
Illuminated Entry ......................................... 56
WINDSHIELD WIPERS AND WASHERS .............56
Windshield Wiper Operation ...................... 57
Rain Sensing Wipers — If Equipped ........... 58 CLIMATE CONTROLS ........................................... 58
Automatic Climate Control Descriptions
And Functions .............................................. 59 Manual Climate Control Descriptions And
Functions...................................................... 62 Automatic Temperature
Control (ATC) ................................................ 64 Climate Voice Recognition .......................... 65
Operating Tips ............................................. 65
INTERIOR STORAGE AND EQUIPMENT ............. 66
Storage ......................................................... 66
USB/AUX Control ........................................ 72
Electrical Power Outlets .............................. 73
Power Inverter — If Equipped ..................... 74
Wireless Charging Pad — If Equipped ........ 76
WINDOWS ............................................................ 76
Power Windows — If Equipped .................... 76
Automatic Window Features —
If Equipped ................................................... 77 Reset Auto-Up ............................................. 77
Window Lockout Switch — If Equipped....... 78
Power Sliding Rear Window —
If Equipped .................................................. 78 Manual Sliding Rear Window —
If Equipped ................................................... 78 Wind Buffeting ............................................ 78
HOOD ..................................................................... 79
To Open The Hood ...................................... 79
To Close The Hood ....................................... 79
GETTING TO KNOW YOUR
INSTRUMENT PANEL
BASE / MIDLINE INSTRUMENT CLUSTER —
GASOLINE ..............................................................80
Base / Midline Instrument Cluster
Descriptions ................................................. 81
PREMIUM INSTRUMENT CLUSTER —
GASOLINE ..............................................................83
Premium Instrument Cluster
Descriptions ................................................. 84
BASE / MIDLINE INSTRUMENT CLUSTER —
DIESEL....................................................................85
Diesel Instrument Cluster .......................... 86

PREMIUM INSTRUMENT CLUSTER — DIESEL ..... 88

Diesel Instrument Cluster .......................... 89
INSTRUMENT CLUSTER DISPLAY .......................90
Instrument Cluster Display Controls .......... 90
Oil Life Reset ............................................... 91
Display Menu Items ..................................... 92
Diesel Messages And Warnings ............... 101 Battery Saver On/Battery Saver Mode
Message — Electrical Load Reduction
Actions — If Equipped ............................... 105
WARNING LIGHTS AND MESSAGES ............... 107
Red Warning Lights ................................... 107
Yellow Warning Lights ............................... 110Yellow Indicator Lights .............................. 113
Green Indicator Lights ............................... 115White Indicator Lights ............................... 115Blue Indicator Lights ................................. 116

21_DPF_OM_EN_USC_t.book Page 3

11
SYMBOL GLOSSARY
Some car components have colored labels with symbols indicating
precautions to be observed when using this component. It is important
to follow all warnings when operating your vehicle. See below for the
definition of each symbol Úpage 107.
Red Warning Lights
Seat Belt Reminder Warning Light
Úpage 107
Air Bag Warning Light Úpage 107
Brake Warning Light Úpage 107
Hood Open Warning Light Úpage 108
Vehicle Security Warning Light — If Equipped Úpage 108
Engine Coolant Temperature Warning Light Úpage 108
Battery Charge Warning Light
Úpage 108
Oil Pressure Warning Light Úpage 108
Oil Temperature Warning Light Úpage 109
Electronic Throttle Control (ETC) Warning Light Úpage 109

Electric Power Steering (EPS) Fault Warning Light
Úpage 109
Trailer Brake Disconnected Warning Light Úpage 109
Transmission Temperature Warning Light — If Equipped
Ú page 109
Door Open Warning Light Úpage 110
Red Warning Lights
1

21_DPF_OM_EN_USC_t.book Page 11

12
Yellow Warning Lights
Adaptive Cruise Control (ACC) Fault Warning Light — If Equipped
Úpage 110
Engine Check/Malfunction Indicator Warning Light (MIL)
Ú page 110
Electronic Stability Control (ESC) Active Warning Light — If Equipped
Úpage 111
Electronic Stability Control (ESC) OFF Warning Light — If Equipped
Úpage 111
Low Washer Fluid Warning Light — If Equipped Úpage 111
Low Fuel Warning Light Úpage 111
Low Coolant Level Warning Light Úpage 111Loose Fuel Filler Cap Warning Light — If
Equipped
Ú page 111
Tire Pressure Monitoring System (TPMS) Warning Light — If Equipped
Úpage 111
Anti-Lock Brake System (ABS) Warning Light Úpage 113
Service Forward Collision Warning (FCW) Light — If Equipped
Úpage 113
Service 4WD Warning Light — If Equipped Úpage 113
Cruise Control Fault Warning Light Úpage 113
Yellow Warning Lights

21_DPF_OM_EN_USC_t.book Page 12

13
Yellow Indicator Lights
Forward Collision Warning (FCW) Off Indicator Light — If Equipped
Úpage 113
TOW/HAUL Indicator Light Úpage 113
Trailer Merge Assist Indicator Light — If Equipped
Ú page 113
Cargo Light — If Equipped Úpage 113
Snowplow Mode Indicator Light — If Equipped Úpage 113
Cold Ambient Derate Mode Indicator Light — If Equipped
Ú page 114
Diesel Exhaust Brake Indicator Light — If Equipped
Ú page 1144WD Lock Indicator Light
Úpage 114
4WD Low Indicator Light — If Equipped Úpage 114
4WD High Indicator Light — If Equipped Úpage 114
NEUTRAL Indicator Light — If Equipped Úpage 114
Low Diesel Exhaust Fluid (DEF) Indicator Light — If Equipped
Ú page 114
Wait To Start Light — If Equipped Úpage 114
Water In Fuel Indicator Light — If Equipped Úpage 114
Yellow Indicator Lights
1

21_DPF_OM_EN_USC_t.book Page 13

GETTING TO KNOW YOUR VEHICLE17
5. Replace the battery by using your thumb to
push down and slide the battery under the
small lip on the top edge of the opening.

Key Fob Battery Replacement

6. To assemble the key fob case, line up the top edge of the back cover with the top of
the fob, and press the edges into the
interlocking hinges until all edges snap
together with no large visual gaps.
7. Reinsert the emergency key until it locks into place.
NOTE:
The key fob battery should only be replaced by
qualified technicians. If the battery requires
replacement, see an authorized dealer.Programming And Requesting Additional
Key Fobs
Programming the key fob may be performed by
an authorized dealer.
NOTE:
Once a key fob is programmed to a vehicle, it
cannot be re-purposed and reprogrammed to
another vehicle.
Only key fobs that are programmed to the
vehicle electronics can be used to start and
operate the vehicle. Once a key fob is
programmed to a vehicle, it cannot be
programmed to any other vehicle.
Duplication of key fobs may be performed at an
authorized dealer. This procedure consists of
programming a blank key fob to the vehicle electronics. A blank key fob is one that has
never been programmed.
NOTE:
When having the Sentry Key Immobilizer system
serviced, bring all vehicle keys with you to an
authorized dealer Ú
page 449.
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 addition, if the light begins to flash after the
WARNING!
Always remove the key fobs from the
vehicle and lock all doors when leaving the
vehicle unattended.
For vehicles equipped with Keyless
Enter-N-Go — Ignition, always remember to
place the ignition in the OFF mode.
2

21_DPF_OM_EN_USC_t.book Page 17

20GETTING TO KNOW YOUR VEHICLE
(Continued)
REMOTE START — IF EQUIPPED
(GASOLINE)
This system uses the key fob to start
the engine conveniently from outside
the vehicle while still maintaining
security. The system has a range of
approximately 300 ft (91 m).
Remote start is used to defrost windows in cold
weather, and to reach a comfortable climate in
all ambient conditions before the driver enters
the vehicle.
NOTE:
Obstructions between the vehicle and the key
fob may reduce this range Ú page 449.
HOW TO USE REMOTE START

Push and release the Remote Start button on the
key fob twice within five seconds. The parking
lights will flash, vehicle doors will lock, and the
horn will chirp twice (if programmed). Once the
vehicle has started, the engine will run for
15 minutes.

Pushing the remote start button a third time
shuts the engine off.
To drive the vehicle, push the unlock button,
insert the key into the ignition, and turn to the
ON/RUN position. NOTE:
With Remote Start, the engine will only run
for 15 minutes.
Remote Start can only be used twice.
If an engine fault is present or fuel level is
low, the vehicle will start and then shut down
in 10 seconds.
The parking lights will turn on and remain on
during Remote Start mode.
For security, power window operation is
disabled when the vehicle is in the Remote
Start mode.
The ignition must be placed in the ON/RUN
position before the Remote Start sequence
can be repeated for a third cycle.
If your power door locks were unlocked,
Remote Start will automatically lock the
doors.
WARNING!
Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monoxide is
poisonous and can cause serious injury or
death when inhaled.
Keep key fobs away from children. Opera
-
tion of the Remote Start System, windows,
door locks or other controls could cause
serious injury or death.
WARNING! (Continued)

21_DPF_OM_EN_USC_t.book Page 20

GETTING TO KNOW YOUR VEHICLE23
HOW TO USE REMOTE START

Push and release the Remote Start button on the
key fob twice within five seconds. The vehicle
doors will lock, the parking lights will flash, and
the horn will chirp twice (if programmed). Then,
the engine will start, and the vehicle will remain
in the Remote Start mode for a 15 minute cycle.

Pushing the remote start button a third time
shuts the engine off.
To drive the vehicle, push the unlock button,
insert the key into the ignition, and turn to the
ON/RUN position.
All of the following conditions must be met
before the engine will remote start:
Gear selector in PARK
Doors closed
Hood closed
Hazard switch off
Brake switch inactive (brake pedal not
pressed)
Battery at an acceptable charge level
PANIC button not pushed
Fuel meets minimum requirement

Water In Fuel Indicator Light is not illuminated

Wait To Start Light is not illuminated
Malfunction Indicator Light (MIL) is not illumi -
nated
For additional functions of the Remote Start
system, see Ú page 21
VEHICLE SECURITY SYSTEM — IF EQUIPPED
The Vehicle Security system monitors the
vehicle doors and ignition for unauthorized
operation. When the Vehicle Security system is
activated, interior switches for door locks are
disabled. If something triggers the alarm, the
Vehicle Security system will provide the
following audible and visible signals:
The horn will pulse
The turn signals will flash
The vehicle security light in the instrument
cluster will flash
TO ARM THE SYSTEM
Follow these steps to arm the Vehicle Security
system:

1. Make sure the vehicle’s ignition is placed
in the OFF position.

For vehicles equipped with Keyless Entry,
make sure the vehicle’s keyless ignition
system is OFF.
WARNING!
Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monoxide is
poisonous and can cause serious injury or
death when inhaled.
Keep key fobs away from children. Opera -
tion of the Remote Start System, windows,
door locks or other controls could cause
serious injury or death.
2

21_DPF_OM_EN_USC_t.book Page 23

34GETTING TO KNOW YOUR VEHICLE
MANUAL FRONT SEAT ADJUSTMENT
Manual Front Seat Forward/Rearward
Adjustment
Both front seats are adjustable forward or
rearward. The manual seat adjustment handle
is located under the seat cushion at the front
edge of each seat.

Manual Seat Adjustment Bar

While sitting in the seat, pull up on the handle
and slide the seat forward or rearward. Release
the bar once you have reached the desired
position. Then, using body pressure, move
forward and rearward on the seat to be sure
that the seat adjusters have latched.
Manual Front Seat Recline Adjustment
The recline lever is located on the outboard side
of the seat. To recline the seat, lean forward
slightly, lift the lever, lean back to the desired
position and release the lever. To return the
seatback to its normal upright position, lean
forward and lift the lever. Release the lever
once the seat back is in the upright position.
Manual Recline Lever

40-20-40 Front Bench Seat — If Equipped
The seat is divided into three segments. The
outboard seat portions are each 40% of the
total width of the seat. On some models, the
back of the center portion (20%) easily folds
down to provide an armrest/center storage
compartment.
WARNING!

Adjusting a seat while driving may be
dangerous. Moving a seat while driving could
result in loss of control which could cause a
collision and serious injury or death.

Seats should be adjusted before fastening
the seat belts and while the vehicle is
parked. Serious injury or death could result
from a poorly adjusted seat belt.
WARNING!

Do not stand or lean in front of the seat while
actuating the handle. The seatback may swing
forward and hit you causing injury.

To avoid injury, place your hand on the seat
-
back and actuate the handle, then position
the seatback in the desired position.

21_DPF_OM_EN_USC_t.book Page 34