Towing Tips - Automatic Transmission
The D range can be selected when towing. However, if frequent shifting occurs while in this range, the TOW HAUL feature should be selected.
NOTE:
Using the TOW HAUL feature while operating the vehicle under heavy operating conditions will improve performance and extend transmission life by reducing excessive shifting and heat build up. This action will also provide better engine braking.
The automatic transmission fluid and filter should be changed if you REGULARLY tow a trailer for more than 45 minutes of continuous operation. See Vehicle Quick Reference/Maintenance Schedules - Description for transmission fluid change intervals.
NOTE:
Check the automatic transmission fluid level before towing.