1991 geo prizm, battery light and brake light in the dash stay lit when you start the car. The car still runs fine just the dash warning lights stay on. The alternator was replaced maybe three years ago, could it be going out?

old post.
the dimmer was turned down, dash dimmer
or if parking lamps are out too, the park fuse blown
aka. TAIL fuse.

on newer cars, dont ask, 10x more complex. but CAN DO.

Check for power to the light switch. If no power, trace wiring from fuse panel to switch. If there is power, then it could be your switch that is bad.

The warning light is connected to the master cylinder and the parking brake.
It comes on if the brake fluid is low or if the parking brake is left on.

Brake Light Switch The brake light switch is located at the top of the pedal arm. It is the switch which turns the brake lights on when the brakes are applied. The plunger type switch is held in the off position by the normal position of the brake pedal; when the pedal moves during brake application, the switch plunger moves forward and the brake lights are brought on. The switch is almost always the first place to look for the cause of the brake lights flickering over bumps or staying on without use of the brakes. If the brake lights fail to work with the brakes applied, check the fuse first and then check the switch.

brake light switch

It sounds like it may be a bad brake light switch. The switch is located under dash above brake pedal, usually mounted on the pedal shaft coming down from where it bolts into the pushrod going through firewall. Once you locate the switch, unplug the connectors and see if brake lights go out. If lights go out, then the swtich is bad.

Your abs light is permanent. Most people don't bother to fix this, it is expensive, and your car is getting old. It means that the anti lock brake system has failed and needs repair. But your brakes still work fine, just don't have anti lock. So I'm not saying tape over the light on the dash, but.

replace th brake light switch

yes it is, you can also check this with the engine running measure voltage at the battery anything above 12.5 is charging if below is not working

its the starter replace it and theres not enough power goin to the starter from the battery