Ram 1500/2500/3500: Summer Operation
The engine cooling system must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to protect against engine overheating.
OAT coolant (conforming to MS-12106) is recommended.
Refer to "Maintenance Procedures" in "Maintaining Your Vehicle" for proper coolant selection.
Winter Operation
To ensure the best possible heater and defroster performance, make sure the engine cooling system is functioning properly and the proper amount, type, and concentration of coolant is used. Refer to "Maintenance Procedures" in "Maintaining Your Vehicle" for proper coolant selection. Use of the air Recirculation mode during Winter months is not recommended because it may cause window fogging.
Vacation/Storage
Any time you store your vehicle or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in fresh air with the blower setting in high. This will ensure adequate system lubrication to minimize the possibility of compressor damage when the system is started again.
Window Fogging and Frosting
Vehicle windows tend to fog on the inside of the glass in mild, rainy and/or humid weather. Windows may frost on the inside of the glass in very cold weather. To clear the windows, select Defrost or Mix mode and increase the front blower speed. Do not use the Recirculation mode without A/C for long periods, as fogging may occur.
NOTE: Automatic Temperature Controls (ATC) will automatically adjust the climate control settings to reduce or eliminate window fogging on the front windshield.
When this occurs, recirculation will be unavailable.
Outside Air Intake
Make sure the air intake, located directly in front of the windshield, is free of obstructions such as leaves. Leaves collected in the air intake may reduce airflow, can cause odor, and if they enter the plenum they could plug the water drains. In winter months, ensure the air intake is clear of ice, slush and snow.
Operating Tips Chart
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Starting Procedures
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belt.
The starter should not be operated for more than 15-
second intervals. Waiting a few
Stop/Start System - If Equipped
The Stop/Start function is developed to save fuel and
reduce emissions. The system will stop the engine automatically
during a vehicle stop if the required conditions
are met. Releasing the brake peda
SEE MORE:
Rear Window Features
Rear Window Defroster
The rear window defroster button
is located on
the climate control panel. Press this button to turn
on the rear window defroster and the heated outside
mirrors (if equipped). An indicator in the button will
illuminate when the rear window defroster is on. The
rear window defro
Automatic Mode
The Stop/Start feature is enabled after every normal
customer engine start. It will remain in STOP/START
NOT READY until you drive forward with a vehicle
speed greater than 5 mph (8 km/h). At that time, the
system will go into STOP/START READY and if all other
conditions are met, can go into an STOP
