One problem related to brake sensor has been reported for the 2006 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Honda Civic based on all problems reported for the 2006 Civic.
I bought my 2006 Honda Civic lx in November 2005. In August 2008 the wear sensor on the front brakes were squealing and I had to have the brake pads replaced and the rotors machined at 8976 miles. I was told that because I live in a geographically hilly area that my brakes would wear sooner than other areas. I find this unusual, other cars that I have driven in the same area did not have this problem. Since then I have had the front pads replaced and the rotors machined on 8/13/07 at 19,093 miles, on 6/2/08 at 27,878 miles and on 12/8/08 at 33,831 miles the pads had to be replaced again and I needed new rotors. I went to a different mechanic this time and they put on different pads which are still doing fine. I wrote to Honda and spoke to a manager there and was told that this is a wear issue and there would be nothing they could do about it. I also feel that Honda is not standing by the quality they used to. My sister has a 2001 Honda Civic and had her brake pads changed for the 1st time in 2008.