* Dead battery: If your car battery is dead, it won't have enough power to turn over the starter motor or power any of the electrical components in the vehicle, including the radio and lights. Check the battery terminals to make sure they are clean and tight, and try jump-starting the car to see if that resolves the issue.
* Faulty starter: The starter motor is responsible for turning over the engine, and if it is faulty, it won't be able to engage the flywheel and start the engine. This could be due to a number of issues, such as a worn-out solenoid, a damaged starter motor, or a bad connection.
* Ignition switch problems: The ignition switch is responsible for sending power to the starter motor when the key is turned. If the ignition switch is faulty, it won't be able to send power to the starter motor, and the engine won't start.
* Electrical problems: There could be a problem with the electrical system in the vehicle, such as a blown fuse or a loose wire, that is preventing the starter motor from getting power.
If you are having trouble diagnosing the problem, it's best to have the vehicle inspected by a qualified mechanic.
