The rheostat in the light stalk is dirty and getting a bad connection causing the dash lights to flicker dim to bright and so on. Try turning the reading and dash lights on and off several times moving the rotary switch from all the way off to all the way on abd back several times. This sometimes will clear the problem for a period. If not, the light stalk will require replacement.
the oil sender unit need to be replace.
The primary causes for the lights to flicker inside on a 2002 Chrysler Sebring LXI is a loose bulb or wire. This can occur when the vehicle has experienced rough road conditions and excessive vibration.
you can also have a wire that is exposed and that can be making them to flicker
Probably your alternator.
The alternator is on the way out.
voltage regulater on the alternater is going bad
The headlights may flicker.
If the lights flicker when the vehicle is running, the alternator is on it's way out.
Sounds like you need a new battery.
I had this problem and it was a bad alternator.
You may have a pull on your batt, or a surge.
Flickering headlights on a 2005 Silverado may be caused by faulty relays or electrical wiring. The fuses and lights may also be going out.