2020 Ram 1500 Hood

450 IN CASE OF EMERGENCY
F11–5 Amp TanOutput to Under-hood Power Distribution
Center (UPDC) Run Coil
F12 –25 Amp Clear Mod Audio Amplifier / Active Noise
Cancellation / SW Inverter
F13 –20 Amp Yellow Mod Seat Heater Front (Driver)
F14 –15 Amp Blue Mod Seat Heater Front (Steering Wheel)
F15 ––Spare
F16 ––Spare
F17 –20 Amp Yellow LT Spot Lamp
F18 30 Amp Pink –Motor Sunshade Sunroof
F19 ––Spare
F20 –20 Amp Yellow Comfort Rear Seat Module (CRSM) (Heat Rear
RT)
F21 ––Spare
F22 ––Spare
F23 ––Spare
F24 –15 Amp Blue Mod RF Hub / Mod Ignition / Mod Cluster
F25 40 Amp Green –Mod Integrated Trailer Brake
F26 –15 Amp Blue Mod Cluster CCN / Mod Cyber Security
F27 –5 Amp Tan Mod Cluster CCN / Mod SGW
Cavity
Cartridge Fuse Micro Fuse Description
2020_DT_1500_OM_US.book Page 450

IN CASE OF EMERGENCY 473
1. Apply the parking brake, shift the automatic transmis-sion into PARK and turn the ignition OFF.
2. Turn off the heater, radio, and all unnecessary electrical accessories.
3. If using another vehicle to jump start the battery, park the vehicle within the jumper cables’ reach, apply the
parking brake and make sure the ignition is OFF.
Jump Starting Procedure
Connecting The Jumper Cables
Jumper Cable Connections
WARNING!
• Take care to avoid the radiator cooling fan whenever the hood is raised. It can start anytime the ignition
switch is ON. You can be injured by moving fan blades.
• Remove any metal jewelry such as rings, watch bands and bracelets that could make an inadvertent electrical
contact. You could be seriously injured.
• Batteries contain sulfuric acid that can burn your skin or eyes and generate hydrogen gas which is flammable
and explosive. Keep open flames or sparks away from
the battery.
WARNING!
Do not allow vehicles to touch each other as this could
establish a ground connection and personal injury could
result.
WARNING!
Failure to follow this jump starting procedure could
result in personal injury or property damage due to
battery explosion.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster vehicle or
the discharged vehicle.
6
2020_DT_1500_OM_US.book Page 473

IN CASE OF EMERGENCY 475
If frequent jump starting is required to start your vehicle you
should have the battery and charging system inspected at an
authorized dealer.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the poten-
tial for overheating by taking the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, place the transmission in NEUTRAL (N), but do not increase the engine idle speed
while preventing vehicle motion with the brakes. NOTE:
There are steps that you can take to slow down an impending
overheat condition:
• If your Air Conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and turning
the A/C off can help remove this heat.
• You can also turn the temperature control to maximum heat, the mode control to floor and the blower control to
high. This allows the heater core to act as a supplement to
the radiator and aids in removing heat from the engine
cooling system.
CAUTION!
Accessories plugged into the vehicle power outlets draw
power from the vehicle’s battery, even when not in use
(i.e., cellular devices, etc.). Eventually, if plugged in long
enough without engine operation, the vehicle’s battery
will discharge sufficiently to degrade battery life and/or
prevent the engine from starting.
WARNING!
You or others can be badly burned by hot engine coolant
(antifreeze) or steam from your radiator. If you see or
hear steam coming from under the hood, do not open the
hood until the radiator has had time to cool. Never try to
open a cooling system pressure cap when the radiator or
coolant bottle is hot.6
2020_DT_1500_OM_US.book Page 475

490 SERVICING AND MAINTENANCE
Checking Oil Level
To assure proper lubrication of your vehicle's engine, the
engine oil must be maintained at the correct level. Check the
oil level at regular intervals, such as every fuel stop. The best
time to check the engine oil level is about five minutes after
a fully warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Always main-
tain the oil level within the SAFE zone on the dipstick.
Adding one quart of oil when the reading is at the bottom of
the SAFE zone will result in a reading at the top of the safe
zone on these engines.
Adding Washer Fluid
The fluid reservoir is located under the hood and should be
checked for fluid level at regular intervals. Fill the reservoir
with windshield washer solvent only (not radiator anti -
freeze). When refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and wipe the
wiper blades clean. This will help blade performance. To prevent freeze-up of your windshield washer system in
cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This rating
information can be found on most washer fluid containers.
After the engine has warmed up, operate the defroster for a
few minutes to reduce the possibility of smearing or freezing
the fluid on the cold windshield. Windshield washer solu-
tion used with water as directed on the container, aids
cleaning action, reduces the freezing point to avoid line clog
-
ging, and is not harmful to paint or trim.
CAUTION!
Overfilling or underfilling will cause oil aeration or loss
of oil pressure. This could damage your engine.
WARNING!
Commercially available windshield washer solvents are
flammable. They could ignite and burn you. Care must
be exercised when filling or working around the washer
solution.
2020_DT_1500_OM_US.book Page 490

502 SERVICING AND MAINTENANCE
Conditions that would require replacement:
• Rib chunking (one or more ribs has separated from beltbody)
• Rib or belt wear
• Longitudinal belt cracking (cracks between two ribs)
• Belt slips
• “Groove jumping" (belt does not maintain correct position on pulley)
• Belt broken
• Noise (objectionable squeal, squeak, or rumble is heard or felt while drive belt is in operation)
NOTE:
Identify and correct problem before new belt is installed.
NOTE:
If your vehicle is equipped with Stop/Start belt must be
replaced with an OEM grade Mopar belt.
Some conditions can be caused by a faulty component such
as a belt pulley. Belt pulleys should be carefully inspected for
damage and proper alignment. Belt replacement on some models requires the use of special
tools, we recommend having your vehicle serviced at an
authorized dealer.
Body Lubrication
Locks and all body pivot points, including such items as seat
tracks, door hinge pivot points and rollers, liftgate, tailgate,
decklid, sliding doors and hood hinges, should be lubricated
periodically with a lithium based grease, such as Mopar
Spray White Lube to assure quiet, easy operation and to
protect against rust and wear. Prior to the application of any
lubricant, the parts concerned should be wiped clean to
remove dust and grit; after lubricating excess oil and grease
should be removed. Particular attention should also be given
to hood latching components to ensure proper function.
When performing other underhood services, the hood latch
release mechanism, and safety catch should be cleaned and
lubricated.
The external lock cylinders should be lubricated twice a year,
preferably in the Fall and Spring. Apply a small amount of a
high quality lubricant, such as Mopar Lock Cylinder Lubri
-
cant directly into the lock cylinder.
2020_DT_1500_OM_US.book Page 502

506 SERVICING AND MAINTENANCE
(Continued)
Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE:
Intentional tampering with emissions control systems can
result in civil penalties being assessed against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe and
abnormal catalyst overheating. If this occurs, stop the
vehicle, turn off the engine and allow it to cool. Service,
including a tune-up to manufacturer's specifications, should
be obtained immediately.To minimize the possibility of catalytic converter damage:
• Do not interrupt the ignition when the transmission is in
gear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the vehicle.
• Do not idle the engine with any ignition components disconnected or removed, such as when diagnostic testing,
or for prolonged periods during very rough idle or
malfunctioning operating conditions.Cooling System
• Damage to the catalytic converter can result if yourvehicle is not kept in proper operating condition. In the
event of engine malfunction, particularly involving
engine misfire or other apparent loss of performance,
have your vehicle serviced promptly. Continued opera -
tion of your vehicle with a severe malfunction could
cause the converter to overheat, resulting in possible
damage to the converter and vehicle. CAUTION!
(Continued)
WARNING!
• You or others can be badly burned by hot engine coolant (antifreeze) or steam from your radiator. If you
see or hear steam coming from under the hood, do not
open the hood until the radiator has had time to cool.
Never open a cooling system pressure cap when the
radiator or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry away from the radiator cooling fan when the hood is raised. The fan
starts automatically and may start at any time, whether
the engine is running or not.
2020_DT_1500_OM_US.book Page 506

512 SERVICING AND MAINTENANCE
• If frequent engine coolant (antifreeze) additions arerequired, the cooling system should be pressure tested for
leaks.
• Maintain engine coolant (antifreeze) concentration at a minimum of 50% OAT coolant (conforming to MS.90032)
and distilled water for proper corrosion protection of your
engine which contains aluminum components.
• Make sure that the coolant expansion bottle overflow hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter oper -
ation. If replacement is ever necessary, install ONLY the
correct type thermostat. Other designs may result in unsat -
isfactory engine coolant (antifreeze) performance, poor
gas mileage, and increased emissions.
Brake System
In order to ensure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Plan” in this section for the proper
maintenance intervals. Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be checked
when performing under the hood service or immediately if
the brake system warning lamp indicates system failure.
If necessary, add fluid to bring level within the designated
marks on the side of the reservoir of the brake master
cylinder. Be sure to clean the top of the master cylinder area
before removing cap.
With disc brakes the fluid level can be expected to fall as the
brake linings wear. However, an unexpected drop in fluid
level may be caused by a leak and a system check should be
conducted.
Refer to “Fluids And Lubricants” in “Technical Specifica
-
tions” for further information.
WARNING!
Riding the brakes can lead to brake failure and possibly
a collision. Driving with your foot resting or riding on
the brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible brake
damage. You would not have your full braking capacity
in an emergency.
2020_DT_1500_OM_US.book Page 512

662
Gross Vehicle Weight Rating ................................................ 407
GuideBody Builders ........................................................................ 14
GVWR ....................................................................................... 405 H
Hazard Driving Through Flowing, Rising, Or Shallow
Standing Water .................................................................... 427
Hazard Warning Flashers ...................................................... 431
Head Restraints ......................................................................... 54
Head Rests ................................................................................. 54
Headlights ................................................................................ 438 Cleaning................................................................................ 540
High Beam.............................................................................. 68
High Beam/Low Beam Select Switch ................................ 68
Lights On Reminder ............................................................. 71
Passing .................................................................................... 69
Switch...................................................................................... 66
Heated Mirrors .......................................................................... 65
Heater, Engine Block .............................................................. 296
High Beam/Low Beam Select (Dimmer) Switch ................. 68
Hill Descent Control ............................................................... 205
Hill Descent Control Indicator .............................................. 205
Hill Start Assist........................................................................ 207
Hitches Trailer Towing ..................................................................... 411 Hoisting ....................................................................................516
HomeLink (Garage Door Opener) ........................................109
Hood Prop ................................................................................105
Hood Release ...........................................................................105
I
Ignition........................................................................................25 Switch ......................................................................................25
Illuminated Entry ......................................................................75
In Vehicle Help Vehicle User Guide ...............................................................16
Inside Rearview Mirror ..............................................59, 60, 431 Instrument Cluster Descriptions .........................................................................193
Display ..................................................................................166
Instrument Panel Lens Cleaning...........................................545
Integrated Trailer Brake Control...........................................416
Interior Appearance Care ......................................................543
Interior Lights ............................................................................73 Intermittent Wipers (Delay Wipers) .......................................76
Introduction ...............................................................................13
Inverter Outlet (115V).............................................................131
iPod/USB/MP3 Control ........................................................623 J
Jack Location ............................................................................454
Jump Starting ...........................................................................472
2020_DT_1500_OM_US.book Page 662