The 2003 Toyota Highlander is a very easy SUV to maintain, and a good choice for any vehicle owner. Checking the transmission fluid level is easy to do, as the dipstick is reliably accessible in the engine bay. Not every model includes this dipstick. The engine air filter is easy to change, as you only have to disengage a few fasteners for access. These fasteners are easy to disengage. Changing the headlight is no problem, as you only have to reach behind the housing for access to the bulb.
Some things are more problematic on the 2003 Toyota Highlander. To change the parking light on this vehicle, you will have to peel back the wheel well lining. This lining can grow tight to the vehicle and be difficult to peel back. Changing the cabin air filter is slightly problematic, as you will have to lower the glove box. This would have been easier if there were designated panels in the rear of the glove box for access. To change the center brake light, you will have to remove a panel, which will require tools you may not have readily available for a repair.
Hans Angermeier has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road.