Jeep 2009 Grand Cherokee SRT - Owner Manual - Manual (Page 339)

performance and extend transmission life by reducing
excessive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. Refer to the “Main-
tenance Schedule” in Section 8 of this manual for the
proper maintenance intervals.
Towing Tips — 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 until
you can get back to cruising speed.
− Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Towing Tips — 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 engine idle speed.
− Highway Driving
Reduce speed.
− Air Conditioning
Turn off temporarily.
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)
Recreational towing is not allowed.
STARTING AND OPERATING 337
5