Cadillac SRX Second Generation Forum - 2010+ Discussion, aftermarket HID lights affecting ECM ? in Cadillac SRX Forums; Our 2012 went into the limp/no power mode the other day, took to the dealer..was told that aftermarket HID lights ...
Automobile(s): 2012 SRX Lux, with several upgrades
Re: aftermarket HID lights affecting ECM ?
I think it MAY depend on the watt draw. I've heard GM has computer "problems" with some aftermarket items that draw more (much) than usual amounts. If I remember correctly a notice was issued by GM to the dealers regarding this.
Well, 55W in your fog lights will piss anybody you meet off, and are too bright for so low a light (also the fogs are only fused for a 35W draw). 55W in the lows will be ok, because they are a projector system and project the light optimally to keep you seeing and other people safe (not blind). 55W in the high beams is way more than sufficient, 35W HIDs are 3 times brighter than halogens, so any change is better, but aside from that, high beams aren't used when oncoming too much, so 55W could be acceptable.