2008 Ford F250 Owner Guide 4th Printing - Page 278

Driving • auto-manual hub locks can be manually overridden by rotating the hub lock control from AUTO to LOCK if desired. • automatic operation of the hub locks is recommended, and will increase fuel economy • For proper operation, make sure that each hub is fully engaged and that both hub locks are set to the same position (both set to LOCK or both set to AUTO). To engage LOCK, turn the hub locks completely clockwise; to engage AUTO, turn the hub locks completely counterclockwise. 4WD system indicator lights The 4WD system indicator lights illuminate only under the following conditions. If these lights illuminate when driving in 2WD, contact your authorized dealer as soon as possible. • 4x4 HIGH - momentarily 4x4 illuminates after the engine is HIGH started. Illuminates when 4H (4x4 High) or 4L (4x4 Low) is engaged. • 4x4 LOW - momentarily 4x4 illuminates when the ignition is LOW turned to the ON position. Illuminates when 4L (4x4 Low) is engaged. Using a Manual Shift On Stop (MSOS) 4x4 system (if equipped) Note: High shift efforts may be encountered when attempting to shift into and out of 4x4 modes. It is recommended to allow the vehicle to roll at a speed below 5 mph (8 km/h) when shifting. Note: Some noise may be heard as the 4x4 system shifts or engages. This is normal. In order to reduce engagement noise, it is recommended that all shifts be performed at speeds below 5 mph (8 km/h). 2H (2WD) - For general on-road driving. Sends power to the rear wheels only. 278 2008 F-250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA (fus)