Key fobs are convenient, but their batteries can fail unexpectedly, leaving you locked out of your vehicle. Fortunately, most auto manufacturers have included backup methods to help you gain access.
If your key fob battery dies, look for a physical key hidden within the fob. This key can often be used to unlock the driver's side door manually.
Once inside, some vehicles allow you to start the engine by placing the key fob in a specific location, such as the steering column or a designated slot, even if the battery is dead.