Hi, I'm about to replace all my filament light bulbs interior exterior with LED's and have noticed on some cars that LED's can be a problem as they draw so little current that sometimes the car's electronics will not recognize that there is a light bulb working it think it's burnt out. Some people have experienced dimmers that wont dim down all the way, turn signals that won't flash right or warning lights saying you have a burnt out light bulb. VLEDS.com is a great sight which sells the LED's but sometimes things don't work as they should.
Just wondering if anyone out there has experienced problems with brands or even the way they look or fit. I know one thing man are they bright !

 

I can't speak about any exterior LEDs but I do have all interior LEDs from SuperbrightLEDs.com. I have tried white, red, and blue. They all fit fine but the red LED was much dimmer than the others. I did have the problem where they stayed dimly lit but when I put the front overhead light switch to "door" they would turn off completely. I believe some have used resistors to fix the dimming problem (and probably most of the problems mentioned) but you will have to search for more details

 

Thanks lucas, I was trying to avoid installing load resistors and tampering with any of the original wiring. I'm a master electrician and the electronics and multiplexing of the wiring system is unbelievable. Best to ask questions first.