2020–2023 Toyota Highlander Hybrid maintenance schedule
Schedule type: fixed
Toyota sets a service visit every 5,000 miles or 6 months, whichever comes first. The 'MAINT REQD' light is a mileage reminder, not an oil-life sensor. With 0W-16 oil the oil and filter are changed every 10,000 miles or 12 months; if 0W-16 was not used at the last change, change it at the next 5,000-mile visit. Summarized in our own words from the sources listed. Always follow the owner's manual or your dealer for your specific vehicle (VIN, engine, and options).
Checked against the official document for model years 2020, 2021, 2022, 2023; other years in this range are assumed to follow it. Confirm in your owner's manual.
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5,000 miles / 6 months
Repeat every 5,000 miles or 6 months.
- Rotate tires DIY
- Inspect HV battery cooling intake filter (clean if dirty or dusty) DIY
- Visually inspect brake linings/drums and brake pads/discs DIY
10,000 miles / 12 months
Repeat every 10,000 miles or 12 months.
- Replace engine oil and oil filter (0W-16) DIY
Severe service: Every 5,000 miles or 6 months in Toyota's special operating conditions.
Parts: Oil filter · 0W-16 motor oil
20,000 miles / 24 months
- Clean HV battery cooling intake filter DIY
The guide says to clean it every 20,000 miles and check it every 5,000 miles.
30,000 miles / 36 months
Repeat every 30,000 miles or 36 months.
- Replace cabin air filter DIY
Inspected at 15,000 miles; heavy traffic or dust can shorten its life.
Parts: Cabin air filter
- Replace engine air filter DIY
Parts: Engine air filter
100,000 miles / 120 months
- Replace engine coolant Shop
First replacement at 100,000 miles or 120 months, then every 50,000 miles or 60 months.
120,000 miles / 144 months
- Replace spark plugs Shop
Listed at 120,000 miles. Maintenance of spark plugs is required under the Emission Control Warranty.
Parts: Spark plugs
150,000 miles / 180 months
- Replace inverter coolant Shop
First replacement at 150,000 miles or 180 months, then every 50,000 miles or 60 months.
Known Toyota Highlander problems
Sources
Always follow the owner's manual for your exact vehicle; intervals can differ by engine and market.