2010 Toyota Highlander Owners Manual - Page 260

2-5. Driving information NOTICE n When you drive through water If driving through water, such as when crossing shallow streams, first check the depth of the water and the bottom of the river bed for firmness. Drive slowly and avoid deep water. n Inspection after off-road driving l Sand and mud that has accumulated in brake drums and around brake discs may affect braking efficiency and may damage brake system components. l Always perform a maintenance inspection after each day of off-road driving that has taken you through rough terrain, sand, mud, or water. For scheduled maintenance information, refer to the "Scheduled Maintenance Guide" or "Owner's Manual Supplement". 232