The oil filter on a 2021 Toyota Highlander is housed in a cartridge-style unit attached to the engine block, typically on the driver’s side near the front. Access is usually gained from above after removing the engine cover, though some trims may require removing protective shields or undercarriage panels.
Engine options and oil filter design
3.5L V6 (non-hybrid)
In the 3.5L V6 configuration, the oil filter is a cartridge-type element located inside a filter housing mounted to the side of the engine block, toward the front of the engine bay. The housing cap is removable to replace the filter cartridge; you may need to clear surrounding components or shields to reach it from the top.
2.5L Hybrid (A25A-FXS)
The 2.5L hybrid powertrain also uses a cartridge-style oil filter in a housing mounted to the engine block, generally in a similar area as the V6 configuration. Access is typically from the top with the hood open, though certain trims with shielding may require partial removal of panels for clearance.
Where to look in the engine bay
Regardless of powertrain, the oil filter housing is usually found on the engine’s left side (driver’s side) near the front of the engine bay. It appears as a cylindrical housing with a removable cap or plug. If you have undercarriage shields or engine undertrays, you may need to remove them to gain clear access.
Step-by-step access to the oil filter
Use these general steps to locate and access the Highlander’s oil filter. Procedures can vary slightly by trim and market, so consult the owner’s manual for specifics before starting.
- Park on a level surface, set the parking brake, and let the engine cool before touching any components.
- Open the hood and remove any engine cover and shields that block access to the filter housing.
- Locate the filter housing on the side of the engine block toward the front (driver’s side). Identify the removable cap or plug.
- Carefully loosen and remove the housing cap to expose and take out the old filter cartridge.
- Insert the new filter cartridge into the housing, replace the cap with its seal in place, and tighten to the specified torque as per the manual.
- Reinstall any shields, refill the engine with the correct oil type and amount, start the engine, and check for leaks. Recheck the oil level after a short run and a few minutes of cooling.
Note: If you’re not comfortable performing an oil filter replacement yourself, seek help from a qualified technician. Always use the OEM-recommended filter and oil specification for your exact Highlander variant.
Maintenance tips and safety considerations
Dispose of used oil and the old filter according to local regulations. Keep spilled oil off the driveway and away from water sources. Regularly inspecting the filter area for leaks can prevent engine damage and ensure optimal lubrication.
Summary
The 2021 Toyota Highlander’s oil filter is a cartridge-type unit mounted to the engine block, commonly on the driver’s side near the front. Access is usually gained from above with the hood open, though some trims may require shield removal. Always refer to the owner’s manual for your exact drivetrain (3.5L V6 or 2.5L hybrid) to confirm the precise location and removal procedure, and consider professional service if you’re unsure.