Brake lights flash ramdomly while parked.

[ROGELIO A GUZMAN]

Hey fellas. I have noticed that my 2004 Denali xl brake light flash while parked. I dont drive it much, but I'm just wondering why it does that. I've checked the tire air pressure thinking it was that. Help me out. Thanks

 

[Fless]

Does it have any aftermarket devices like remote start, alarm, etc.?

 

[OR VietVet]

When it flashes, is it always a certain set amount of flashes, like always 3 flashes or always 2 flashes or is it random?

 

[ROGELIO A GUZMAN]

I think it flashes like 2 or 3 times. Some guys told me it was low tire pressure. But I'm not low on air.

 

[OR VietVet]

I had a recent TPMS warning light on my dash from a low r/r tire caused by a nail. No brake lights flashed because of it.

My first though was a brake light switch.

 

[Fless]

Do any of the front lights flash at the same time?

Again, any aftermarket remote start or alarm system installed?

 

[PG01]

Ill ask ask ask but never answer……

 

[OR VietVet]

Yea, does it happen right after driving it or does it just randomly flash while sitting parked for a few days? Any rhythm to the flashing?

 

[strutaeng]

Does it have any LED lights? Sometimes those cause weird issues, along with any aftermarket "stuff."