HONDA 2011 Fit - Manual (Page 249)

Automatic transmission
If you tow a Fit behind a motorhome,
the transmission fluid must be
changed every 2 years or 30,000
miles (48,000 km), whichever comes
first.
Towing Your Vehicle Behind a Motorhome
243
Driving
10/08/06 13:54:35 11 FIT MMC North America Owner's Manual 50 31TK6620 enu