Stop Lamp Brake Lights
 

Check Stop Lights keeps popping up on the dashboard. After a few minutes or several steps on the pedal the message goes away. The lights work. But it keeps failing everyday.
I replaced the stoplamp switch on the brake pedal. Still not working correctly.
I replaced the two bulbs in the rear, still not working correctly.
Eventually they work so there must be something else wrong.
I have a DiCE and ViDA it it tells me that nothing is wrong!?
I've checked the fuses also. All good.
Is there a relay that may be failing? If so, where is it?
Any suggestions are appreciated.
2001 S80 2.9

My solution was to replace the stop lamp relay found in the REM. Everything works great now!