Low Battery Voltage: Insufficient voltage to turn the engine.
Corroded Battery Terminals: Poor electrical contact prevents starting.
Defective Starter Motor: Issues within the starter mechanism.
Faulty Ignition System: Ignition parts like spark plugs might be compromised.
Fuel Issues: Fuel delivery or supply might have complications.
Mechanical Problems: Internal engine wear or transmission issues might cause resistance.
Damaged Starter System Wiring: Incorrect wiring can interrupt electric signals.
Incorrect Transmission Setting: Transmission is not in Park (Auto) or Neutral (Manual).
Diagnose the specific cause with technical knowledge and appropriate tools for a repair.