So I am thinking about updating some lighting on the exterior of my car and was hearing from someone that LED exterior bulbs can cause some problems due to voltage being so different. Specifically the brake lights, turn signals, and reverse lights.... Any truth to this? Thanks in advance.

 

State the problems that "they" told you about. The only ones I am aware of are the fast blinking turn signals.

 

I heard something along the lines of what you said, fast blinking signals....but he also said (I cannot remember exactly and that's why I am asking, because he did both his Civic and his Grand Prix....and he may have been talking about his Grand Prix...) but he said, quote:

i'm almost certain he was talking about his Grand Prix, because GM is the one who would relate the wiring voltage of their brake lights/tail lamps to their cruise control system. lol. I'm just wanting to make sure though before I place an order....

 

Quoted for truth... My obd2 port was on the same circuit as my horn... F*** GM.

 

Don't have any issues. And I actually prefer the fast flashing blinkers.

 

Unless the person behind you has epilepsy and decides to smash into the *** end of your car.

 

I'm insured.

OP you can solve this by installing some resistors in line with your lights. Tons of kits sold on Ebay.