Operating Tips - Dodge RAM PROMASTER CITY 2018 User Manual

NOTE:
• If fog or mist appears on the windshield or
side glass, select Defrost mode and in-
crease blower speed if needed.
• If your air conditioning performance seems
lower than expected, check the front of the
A/C condenser (located in front of the ra-
diator), for an accumulation of dirt or in-
sects. Clean with a gentle water spray from
the front of the radiator and through the
condenser.
Recirculation
When outside air contains smoke, odors, or
high humidity, or if rapid cooling is desired,
you may wish to recirculate interior air by
pressing the Recirculation control button.
The recirculation indicator will illuminate
when this button is selected. Press the but-
ton a second time to turn off the Recircula-
tion mode and allow outside air into the
vehicle.
24
NOTE:
In cold weather, use of recirculation mode
may lead to excessive window fogging. On
systems with Manual Climate Controls, the
Recirculation mode is not allowed in Defrost
mode to improve window clearing operation.
Recirculation will be disabled automatically
if this mode is selected. Attempting to use
Recirculation while in this mode will cause
the LED in the control button to blink and
then turn off.

Operating Tips

Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Refer to "Dealer Service" in "Servicing And
Maintenance" in your Owner's Manual at
www.mopar.com/en-us/care/owners-manual.html
(U.S. Residents) or www.owners.mopar.ca
(Canadian Residents) for proper coolant se-
lection.
Winter Operation
To ensure the best possible heater and de-
froster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentration
of coolant is used. Refer to "Dealer Service"
in "Servicing And Maintenance" in your Own-
er's Manual at www.mopar.com/en-us/
care/owners-manual.html (U.S. Residents) or
www.owners.mopar.ca (Canadian Residents)
for proper coolant selection. Use of the air
Recirculation mode during Winter months is
not recommended because it may cause win-
dow 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 on high. This will ensure ad-
equate system lubrication to minimize the
possibility of compressor damage when the
system is started again.