1. Turn the ignition to the "Accessory" position. This is usually the position just before starting the car. You should have power to the radio but the engine won't be running.
2. Locate the clock setting buttons on your radio. These are usually small buttons, often labeled "SET" or with up/down arrows near the clock display itself. Their exact location and appearance will vary slightly depending on the specific radio model installed in your Impala. You may need to refer to your owner's manual for the precise location.
3. Press the "SET" button (or equivalent). This should activate the clock's settings mode.
4. Use the up/down arrows (or equivalent buttons) to adjust the hours and minutes. Press the appropriate button to increment or decrement the time until it's correct.
5. Once the time is correct, remove the key from the ignition. This will save your changes.
If you're having trouble finding the buttons or the clock isn't responding, double-check your owner's manual for specific instructions for your radio model. Sometimes a faulty radio or a low battery can also affect clock functionality.
