2021 Toyota Highlander Maintenance Schedule
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
2021 Toyota Highlander Maintenance Schedule: Keeping Your Family SUV Running Smooth
As an ASE-certified master technician, I‘m here to guide you through the essential maintenance for your 2021 Toyota Highlander. This guide will cover factory service intervals, common issues, severe-duty adjustments, typical service costs, and important recall information to ensure your Highlander provides reliable transportation for years to come.
The 2021 Toyota Highlander, part of the fourth generation (XU70) introduced in 2020, offers a choice of a robust 3.5L V6 engine paired with an 8-speed automatic transmission or a highly efficient 2.5L four-cylinder hybrid powertrain with a continuously variable transmission (CVT). Both options are known for their strong reliability, but proper maintenance is key to maximizing their lifespan.
Factory Service Intervals
Toyota’s maintenance schedule for the 2021 Highlander is generally every 5,000 miles or every 6 months, whichever comes first. This schedule ensures proactive care to prevent minor issues from becoming major problems.
| Service Item | Interval | Notes |
|---|---|---|
| Oil and Filter Change | Every 5,000 miles / 6 months | Use Toyota Genuine Motor Oil 0W-20 for V6, 0W-16 for Hybrid (or equivalent synthetic) and genuine Toyota filter. |
| Tire Rotation | Every 5,000 miles / 6 months | Promotes even tire wear and extends tire life. |
| Multi-Point Inspection | Every 5,000 miles / 6 months | Comprehensive check of fluids, belts, hoses, brakes, and more. |
| Cabin Air Filter | Every 10,000 miles / 12 months | More frequent replacement recommended in dusty or urban environments. |
| Engine Air Filter | Every 30,000 miles / 36 months | Inspect at every 10,000 miles; replace sooner if dirty. |
| Brake Fluid | Every 30,000 miles / 36 months | Critical for brake system performance and longevity; flush and replace. |
| Spark Plugs (V6) | Every 60,000 miles / 72 months | Use genuine Toyota Iridium-tipped spark plugs. |
| Spark Plugs (Hybrid) | Every 120,000 miles / 144 months | Use genuine Toyota Iridium-tipped spark plugs. |
| Coolant (V6) | Initial at 100,000 miles / 120 months, then every 50,000 miles / 60 months | Use Toyota Super Long Life Coolant (SLLC) only. |
| Coolant (Hybrid) | Initial at 100,000 miles / 120 months, then every 50,000 miles / 60 months | Use Toyota Super Long Life Coolant (SLLC) only. |
| Transmission Fluid (V6 - 8-speed auto) | Inspect at 60,000 miles, replace at 100,000 miles (severe duty) | Toyota generally considers this "lifetime" fluid under normal conditions, but I recommend a drain and fill at 100,000 miles or sooner for severe duty. |
| Transmission Fluid (Hybrid - CVT) | Inspect at 60,000 miles, replace at 100,000 miles (severe duty) | Similar to the V6, I recommend a drain and fill at 100,000 miles or sooner for severe duty. |
| Transfer Case Fluid (AWD) | Every 30,000 miles / 36 months | Essential for AWD system longevity. |
| Rear Differential Fluid (AWD) | Every 30,000 miles / 36 months | Essential for AWD system longevity. |
Note on Timing Belt/Chain: The 2021 Toyota Highlander, both V6 and hybrid, uses a timing chain, which is designed to last the lifetime of the engine and does not require periodic replacement like a timing belt. Regular oil changes are crucial for timing chain lubrication and longevity.
Known Issues and Common Problems (Fourth Generation XU70: 2020-Present)
The fourth-generation Highlander is still relatively new, and major widespread issues are uncommon, a testament to Toyota
Other Toyota Highlander years
2015 Highlander
2016 Highlander
2017 Highlander
2018 Highlander
2019 Highlander
2020 Highlander
2022 Highlander
2023 Highlander