It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take your vehicle to the dealer/retailer service department and have it repaired as soon as possible.
Change the fluid and filter at the intervals listed in the Maintenance Schedule. See "Additional Required Services" in Service and Maintenance . Be sure to use the transmission fluid listed in "Recommended Fluids and Lubricants" in Service and Maintenance.
Notice: Use of the incorrect automatic transmission fluid may damage your vehicle, and the damages may not be covered by your warranty. See "Recommended Fluids and Lubricants" in the Limited Warranty, Maintenance and Owner Assistance Information manual.