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 2019-2025 Owners Manual: Installing tire pressure warning valves and transmitters (vehicles with a tire pressure warning system)

When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warning computer and the tire pressure warning system must be initialized...

Toyota Corolla 2019-2025 Owners Manual: Windshield wiper de-icer

Prevent ice from building up on the windshield and wiper blades. When the windshield wiper de-icer switch is on, the indicator illuminates on the windshield wiper de-icer switch. The windshield wiper de-icer will automatically turn off after a period of time...