Ok - I bought my 09 M6 a few years back and still stare in amazement that I actually own her. When I got her, she had LED lights all the way around, including the Eagle Eyes which are awesome. About a year and a half later I noticed the right blinker blinking very fast, I checked all the lights and everything worked fine. One day as I walked out to the car I noticed the right rear side marker light flickering. When I inspected the bulb I found an LED like the one below and it just didn't fit very well, these seem to not fit near as good as the OEM bulbs. Since I didn't have any other LED bulbs I put a OEM bulb back in purchased from wall mart and it seemed to work just fine.

Issue is my right blinker still blinks fast - so I really start looking and find that the right side license plate light is flickering, same cheap looking LED as below. So I order a set of LED's on ebay, got them way cheap which is usually what you get when you pay cheap. I change out both bulbs, the license plate and the right marker where I had an OEM bulb in it. Still have a fast blinker...any ideas? Do I need to do a battery disconnect????

Also - is there someone on the forum selling better bulbs than these cheap ones that don't fit snug? They light up great but just don't fit snug and as everyone knows with a vette this isn't good.

Thanks for the help - love this site!

 

If all bulbs are working when you actuate the turn signal lever, and you're getting hyper flash with the installed eagle eye tail lights, I wonder if one of the eagle eye tail light resistors has become disconnected or has failed. Try installing an OEM bulb in the two tail lights, one at a time to see if the hyper flash goes away, if it does then you know you have a problem with that tail light assembly.

 

If you are using the LED bulbs, you will need both a resistor in line, and diode across the lines at each bulb location.

The resistor is to prevent the hyper flash, and the diode is prevent bleed over so the flasher work correctly per side.

So on that note, just go back to the stock bulbs, and make sure to use some dielectric grease in the bulb sockets.

 

You did not specifically mention if the front turn signals, originally 4057 dual filament bulb, had been replaced with an LED 3157/4057 equivalent as well.

Each of the front and rear turn signal bulbs that has been replaced with an LED requires individual 6 ohm / 50 watt resistors to eliminate the hyporflash you are experiencing because the LED bulbs do not pull enough amperage on their own and the BCM "thinks" that a bulb is burnt out. On their own the small 194 LED's used for the side markers do not.