Toyota Camry Maintenance Schedule pdf Towing a trailer, using a camper or car top carrier. Repeated short trips of less than 8 km (5 miles) with outside temperature remaining below freezing. Extensive idling and/or low speed driving for long distances, such as police, taxi or door–to–door delivery use. Operating on dusty, rough, muddy or salt spread roads. Maintenance operation: A = Check and adjust if necessary. R = Replace, change or lubricate. I = Inspect and correct or replace if necessary.