Dodge Dart 2013 Owner's Manual page 480

478 STARTING AND OPERATING
Electronic Speed Control – If Equipped
− Do not use in hilly terrain or with heavy loads.
− When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage it
until you can get back to cruising speed.
− Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
− City Driving
When stopped for short periods of time, shift the trans-
mission into NEUTRAL and increase the engine idle
speed.
− Highway Driving
Reduce speed.
− Air Conditioning
Turn off temporarily.