| Inspect engine air filter Applies to: Driving on dirt roads or dusty roads Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 38 | 5,000 mi, 10,000 mi, 15,000 mi, 20,000 mi, 25,000 mi, 35,000 mi, 40,000 mi, 45,000 mi, 50,000 mi, 55,000 mi, 65,000 mi, 70,000 mi, 75,000 mi, 80,000 mi, 85,000 mi, 95,000 mi, 100,000 mi, 105,000 mi, 110,000 mi, 115,000 mi |
| Replace engine oil and oil filter Applies to: Driving on dirt roads or dusty roads Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 38 | 5,000 mi, 15,000 mi, 25,000 mi, 35,000 mi, 45,000 mi, 55,000 mi, 65,000 mi, 75,000 mi, 85,000 mi, 95,000 mi, 105,000 mi, 115,000 mi |
| Replace engine oil and oil filter Applies to: Driving while towing, using a car-top carrier, or heavy vehicle loading Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 40 | 5,000 mi, 15,000 mi, 25,000 mi, 35,000 mi, 45,000 mi, 55,000 mi, 65,000 mi, 75,000 mi, 85,000 mi, 95,000 mi, 105,000 mi, 115,000 mi |
| Replace engine oil and oil filter Applies to: Extensive idling and/or low speed driving for a long distance such as police, taxi or door-to-door delivery use Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 39 | 5,000 mi, 15,000 mi, 25,000 mi, 35,000 mi, 45,000 mi, 55,000 mi, 65,000 mi, 75,000 mi, 85,000 mi, 95,000 mi, 105,000 mi, 115,000 mi |
| Replace engine oil and oil filter Applies to: Repeated trips of less than five miles in temperatures below 32°F / 0°C Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 39 | 5,000 mi, 15,000 mi, 25,000 mi, 35,000 mi, 45,000 mi, 55,000 mi, 65,000 mi, 75,000 mi, 85,000 mi, 95,000 mi, 105,000 mi, 115,000 mi |
| Replace front differential oil Applies to: Driving while towing, using a car-top carrier, or heavy vehicle loading Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 45 | Every 60,000 mi or 72 months |
| Replace rear differential oil (4WD) Applies to: Driving while towing, using a car-top carrier, or heavy vehicle loading Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 39 | Every 15,000 mi or 18 months |
| Replace transfer case oil (4WD) Applies to: Driving while towing, using a car-top carrier, or heavy vehicle loading Source: Toyota 2015 Highlander Warranty and Maintenance Guide, page 41 | Every 15,000 mi or 18 months |