2009 Ford Flex Owner's Manual - Page 363

Maintenance and Specifications 7. Remove the dipstick and inspect the fluid level. The fluid should be in the designated areas for normal operating temperature. Low fluid level Do not drive the vehicle if the fluid level is in the add range or does not show at all on the dipstick. Correct fluid level The transmission fluid should be checked at normal operating temperature 149°F (65°C) on a level surface. The normal operating temperature can be reached after approximately 20 miles (30 km) of driving. The transmission fluid should be within the cross-hatch area if at normal operating temperature 149°F (65°C). High fluid level Fluid levels above the safe range may result in transmission failure. An overfill condition of transmission fluid may cause shift and/or engagement concerns and/or possible damage. High fluid levels can be caused by an overheating condition. Adjusting automatic transmission fluid levels Before adding any fluid, make sure the correct type is used. The type of fluid used is normally indicated on the dipstick and also in the Maintenance product specifications and capacities section in this chapter. Use of a non-approved automatic transmission fluid may cause internal transmission component damage. If necessary, add fluid in 1/2 pint (250 ml) increments through the filler tube until the level is correct. 363 2009 Flex (471) Owners Guide, 2nd Printing USA (fus)