[header] How to fix an ignition key that doesn't turn [title] Ensure the vehicle is in park. [step] Vehicles equipped with an automatic transmission are designed not to start if the transmission is not in park or neutral. Starting a car while in drive could result in the vehicle lurching forward, causing damage or injuring someone. 
Check your shift lever to ensure it is completely in park or neutral, then attempt to turn the key again. [substeps] Be sure the indicator on the shift lever is pointing at the " p " for park.