Mesh Grille Technical Impacts
I know that upper and lower mesh grilles on an XLR result in the loss of cruise control, but now I'm being told it also impacts the air flow causing the computer to throw codes, usually resulting in the Service Engine Soon light randomly coming on... has anyone else seen this? My mechanic says there was a GM bulletin describing all the problems caused by this upgrade, but has not found it to show me. Other than the cruise control, I had not heard of any other problems. I bought my car with the grille already installed so I'm at a loss at this point.