Toyota Corolla: Maintenance and care / Do-it-yourself maintenance

Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system...

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. Maintenance WARNING The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized...

Other information:

Toyota Corolla 2019-2026 Owners Manual: Air conditioning filter

The air conditioning filter must be changed regularly to maintain air conditioning efficiency. Removing the air conditioning filter 1 Turn the engine switch off. 2 Open the glove box. Slide off the damper (if equipped). 3 Push in the glove box on the vehicle’s outer side to disconnect the claws...

Toyota Corolla 2019-2026 Owners Manual: Approach warning (vehicle- to-vehicle distance control mode)

When your vehicle is too close to a vehicle ahead, and sufficient automatic deceleration via the cruise control is not possible, the display will flash and the buzzer will sound to alert the driver. An example of this would be if another driver cuts in front of you while you are following a vehicle...