I have a 2003 Dodge Ram 1500 5.7, recently the lamp out light came on when I put the truck in reverse, so I checked and found one of the reverse light bulbs was burnt out so i replaced it now the lamp out is still coming on and the lights are working

 

Did you use LEDs?

 

If you used a regular bulb its probably one of two things either you knocked one lose while changing out the bulb or you have another one about ready to go. I had a tail light go out and then a week later the other go also had a turn signal that set the light out off for a month before it finally burnt out

 

i have spyder led tail lights its been a yr. now having them. The reverse bulb is normal and I had check for and looseness and ever thing is checked out