Why does my radio clock keep resetting?
The clock relies on a constant flow of electricity from the battery to keep it running, even when the engine is turned off. If that connection is ever interrupted, the clock will reset — just like unplugging a digital clock from a wall socket. Start by checking the connections at the battery terminals.
What does resetting a car radio do?
Performing the RESET procedure will erase the clock settings and some stored content. Some models don’t have a reset button. Check your manual for model-specific information.
Can alternator mess up radio?
Other Electrical Problems
A dying alternator may also cause your car’s radio and internal lighting to stop working.