Try pushing the high beam lever forward. In some cars pulling this towards the driver only "flashes" the high beams, like for warning another driver. To make the high beams remain on usually requires the lever to be pushed forward. Either that or you have a defective switch in the turn lever that needs to be replaced.
Headlights, interior lights, parking lights,Headlights, interior lights, parking lights,
Perhaps you turned on the interior lights when you were adjusting the headlights?
Start by checking your fuses. Then bulbs. Then switches in that order.
If you have no brake lights or tail lights then you've probably got an electrical problem. Check the fuses first and see if you have one or more blown.
If the interior lights stay on while driving on a 2002 Impala, there could be a problem with the headlight switch. Check the relay center for the headlights that is just behind the headlight switch.
Check the fuses.
Fuse, wiring, bulbs
Most likely a fuse or a bad ground.
just had this problem with my 2002 durango, the mechanic ran it on the computer and nothing showed up so he disconnected the battery and then reconnected it and everything works now. The headlights, locks, panel lights, interior lights, locks, rear wipers all run through the body assembly moduale. Hope this helps you.
Fuse for parking lights probably blown.
Check for bad ground
Check the fuses and the bulbs.