2019 Ram 1500 coolant

ON/RUN position. The light should illuminate for ap-
proximately two seconds. The light should then turn off
unless the parking brake is applied or a brake fault is
detected. If the light does not illuminate, have the light
inspected by an authorized dealer.
The light also will turn on when the parking brake is
applied with the ignition switch in the ON/RUN position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake application.
— Hood Open Warning Light
This warning light will illuminate when the hood is
ajar/open and not fully closed.
NOTE: If the vehicle is moving, there will also be a single
chime.
— Vehicle Security Warning Light — If Equipped
This light will flash at a fast rate for approximately 15
seconds when the vehicle security alarm is arming, and
then will flash slowly until the vehicle is disarmed.
— Engine Coolant Temperature Warning Light
This warning light warns of an overheated engine condi-
tion. If the engine coolant temperature is too high, this indicator will illuminate and a single chime will sound. If
the temperature reaches the upper limit, a continuous
chime will sound for four minutes or until the engine is
able to cool: whichever comes first.
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, shift
the transmission into NEUTRAL and idle the vehicle. If the
temperature reading does not return to normal, turn the
engine off immediately and call for service.
Refer to “If Your Engine Overheats” in “In Case Of
Emergency” for further information.
— Battery Charge Warning Light
This warning light will illuminate when the battery is not
charging properly. If it stays on while the engine is run-
ning, there may be a malfunction with the charging system.
Contact an authorized dealer as soon as possible.
This indicates a possible problem with the electrical system
or a related component.
— Oil Pressure Warning Light
This warning light will illuminate to indicate low engine
oil pressure. If the light turns on while driving, stop the
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 181

Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight parking for
fuel, coolant, oil, or other fluid leaks. Also, if gasoline
fumes are detected or if fuel, or brake fluid leaks are
suspected. The cause should be located and corrected
immediately.
288 SAFETY

CavityCartridge Fuse Micro Fuse Description
F35 –10 Amp Red PCM / ECM / Power Pack Unit (PPU) Mo-
tor Generator Unit (MGU) Wake Up / EPS /Active Tuned Mass Module (ATMM) / ESP
F36 –– Spare
F37 –5 Amp Tan R / S Output to iPDC
F38 –10 Amp Red DTCM / Active CL TEMP VLV
F39 –– Spare
F40 40 Amp Green – Starter
F41 –10 Amp Red IRCAM Heaters
F42 –– Spare
F43 –20 Amp Yellow MGU Coolant Pump – If Equipped
F44 –– Spare
F45 –– Spare
F46 30 Amp Pink –Fuel Heater – If Equipped
F47 30 Amp Pink –Rear Defroster
F48 –– Spare
F49 30 Amp Pink –Htr Ctrl – If Equipped (Diesel Only)
F50 –– Spare
F51 –– Spare
F52 –– Spare
452 IN CASE OF EMERGENCY

CavityCartridge Fuse Micro Fuse Description
F62 A&B –10 Amp Red ITBM / Mod Occupant Class / Mod IAIR
Suspension / Mod HVAC Snsr Incar Temp /Rear Coolant Temp / PTS / Mod IRCM
F63 –– Spare
F64 –– Spare
F65 –10 Amp Red Mod ORC
F66 10 Amp RedRun - Accessory Feed
CAUTION!
•When installing the power distribution center cover,
it is important to ensure the cover is properly posi-
tioned and fully latched. Failure to do so may allow
water to get into the power distribution center and
possibly result in an electrical system failure.
(Continued)
CAUTION! (Continued)
•When replacing a blown fuse, it is important to use
only a fuse having the correct amperage rating. The
use of a fuse with a rating other than indicated may
result in a dangerous electrical system overload. If a
properly rated fuse continues to blow, it indicates a
problem in the circuit that must be corrected.
458 IN CASE OF EMERGENCY

•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.
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.
CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (H), pull
over and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.
MANUAL PARK RELEASE
WARNING!
Always secure your vehicle by fully applying the
parking brake before activating the Manual Park Re-
lease. In addition, you should be seated in the driver ’s
seat with your foot firmly on the brake pedal when
activating the Manual Park Release. Activating the
Manual Park Release will allow your vehicle to roll
away if it is not secured by the parking brake, or by
proper connection to a tow vehicle. Activating the
Manual Park Release on an unsecured vehicle could
lead to serious injury or death for those in or around
the vehicle.
In order to push or tow the vehicle in cases where the
transmission will not shift out of PARK (such as a dead
battery), a Manual Park Release is available.
Follow these steps to activate the Manual Park Release:
1. Apply the parking brake.
478 IN CASE OF EMERGENCY

SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, and extremely hot or cold
ambient temperatures will influence when the “Oil Change
Required” message is displayed. Severe Operating Condi-
tions can cause the change oil message to illuminate as
early as 3,500 miles (5,600 km) since last reset. Have your
vehicle serviced as soon as possible, within the next 500
miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other than
your authorized dealer, the message can be reset by
referring to the steps described under “Instrument Cluster
Display” in “Getting To Know Your Instrument Panel”.NOTE:
Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), twelve months or 350
hours of engine run time, whichever comes first. The 350
hours of engine run or idle time is generally only a concern
for fleet customers.
Severe Duty All Models
NOTE: Change Engine Oil at 4,000 miles (6,500 km) or 350
hours of engine run time if the vehicle is operated in a
dusty and off road environment or is operated predomi-
nantly at idle, or only very low engine RPM’s. This type of
vehicle use is considered Severe Duty.
Once A Month Or Before A Long Trip:
• Check engine oil level.
• Check windshield washer fluid level.
• Check tire pressure and look for unusual wear or
damage. Rotate tires at the first sign of irregular wear,
even if it occurs before the oil indicator system turns on.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, and fill as needed.
• Check function of all interior and exterior lights.
8
SERVICING AND MAINTENANCE 489

ENGINE COMPARTMENT
3.6L Engine With Stop/Start
1 — Motor Generator Unit Coolant Reservoir Pressure Cap
2 — Engine Coolant Reservoir
3 — Engine Coolant Reservoir Pressure Cap
4 — Engine Oil Dipstick
5 — Engine Oil Fill
6 — Brake Fluid Reservoir7 — Battery
8 — Power Distribution Center (Fuses)
9 — Washer Fluid Reservoir
10 — Air Cleaner Filter
11 — Motor Generator Unit Coolant Reservoir
494 SERVICING AND MAINTENANCE

5.7L Engine Without Stop/Start
1 — Air Cleaner Filter
2 — Engine Oil Fill
3 — Engine Oil Dipstick
4 — Brake Fluid Reservoir
5 — Battery6 — Power Distribution Center (Fuses)
7 — Washer Fluid Reservoir
8 — Engine Coolant Reservoir
9 — Engine Coolant Pressure Cap
8
SERVICING AND MAINTENANCE 495