What causes all warning lights to come on and stay on in a 2002 Pontiac sunfire?

When all warning lights come on and stay on in a 2002 Pontiac Sunfire, it typically indicates a problem with the vehicle's electrical system, often related to a malfunctioning battery, alternator, or a poor ground connection. A faulty ignition switch or a blown fuse could also trigger this issue. In some cases, it may be due to a failure in the vehicle's onboard diagnostics system. It's advisable to have the vehicle checked by a mechanic to diagnose and address the underlying problem.