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: If you lose your keys

New genuine keys can be made by your Toyota dealer using the other key (vehicles without a smart key system) or mechanical key (vehicles with a smart key system) and the key number stamped on your key number plate. Keep the plate in a safe place such as your wallet, not in the vehicle...

Toyota Corolla 2019-2025 Owners Manual: Keys

The keys The following keys are provided with the vehicle. ► Type A A - Keys (without a wireless remote control function) B - Key number plate ► Type B A - Keys (with a wireless remote control function) Operating the wireless remote control function (®P...