Twinkling gauges

I have a F-150 2005, since 3 mo. ago when I turn it on, all the gauges in the dashboard start “twinkling” and after 5 sec. return to normal operation.

What’s the reason?

Do I have to worry?

How does a gauge "twinkle?"
Do you mean that the backlighting is flickering?
Do you mean that the gauges move back and forth unexpectedly when you start the engine? If so, you probably have a weak battery that you need to replace.


Thanks Tardis, I put on a new battery and problem solved!, no back and forth gauges.

Hmmm…This guy’s gauges “twinkle”.
Yesterday, we had a woman whose brake warning light “beeped”.

Unfortunately, my cars have never been this entertaining!