front rotors warped again after 15000 miles since replaced new

Always make sure the wheels are evenly torqued to 80 ft/lbs during tire rotations. Make sure the brake calipers or slide pins are not sticking. Also,Inspect the front hubs for run out with a dial indicator. If they are not true you'll have a variation in rotor run out.

looks like Honda has problems with rotors, it is not bad driving. I have a 2013 Honda CRV that has 40,000 miles. I has been vibrating since 25,000.. Dealer says it is driver issue, that is crazy. The brake pad are not even worn out yet , just 50% worn and rotor is bad(needs machining which means this will occur again) I have never seen this occur with a vehicle I have ever owned. Might not buy another Honda now with this response from a dealer.