Fiat 500 engine not turning over, key stuck in ignition, new battery did not resolve issue on Fiat 500

Some Fiat 500 owners report experiencing issues with the engine not turning over and the key getting stuck in the ignition, even after installing a new battery. These problems may stem from a worn-out key or a malfunctioning ignition switch. Additionally, if the key won't turn, it could be due to a binding steering column or lock, or issues with the ignition key itself. Owners have found that slightly turning the steering wheel can relieve pressure on the steering gear, potentially allowing the key to turn. The Fiat 500's computer-controlled ignition system relies on the key sending a signal to the body computer, which then communicates with the engine computer to engage the starter. In some cases, the key may be stuck due to a security feature designed to prevent starting with an incorrect key, which can sometimes be resolved by removing the plastic cover around the keyhole and releasing a tab. If these troubleshooting steps do not resolve the issue, seeking professional assistance is advisable.