2011 Jeep Wrangler Owner Manual - Page 382

380 STARTING AND OPERATING NEUTRAL • The O/D OFF switch has not been activated. This range is used when vehicle is standing for pro• Vehicle speed is above approximately 30 mph longed periods with engine running. Engine may be (48 km/h). started in this range. Set the parking brake and shift the When frequent transmission shifting occurs while using transmission into PARK if you must leave the vehicle. Overdrive, such as when operating the vehicle under NOTE: Towing, coasting, or driving the vehicle for any heavy load conditions (for example, in hilly terrain, other reason with the shift lever in NEUTRAL can result strong head winds, or trailer towing), turning off overin severe transmission damage. Refer to "Recreational drive will improve performance and extend transmission Towing" in "Starting and Operating" and "Towing a life by reducing excessive shifting and heat buildup. Disabled Vehicle" in "What To Do In Emergencies" for further information. OVERDRIVE This range is used for most city and highway driving. The transmission contains an electronically-controlled fourth gear Overdrive, and will automatically shift from DRIVE to OVERDRIVE if the following conditions are present: • The shift lever is in DRIVE.