Had a major problem with my 2010 Honda Pilot. Basically it started to misfire and run like crap. Got the TSB that is coming out this month that will cover the piston rings for cylinders 1 through 4.
"The piston rings on certain cylinders may rotate and align which can lead to spark plug fouling. This can set DTCs P0301 through P0304 and cause the MIL to come on"
The are extending the warranty 8 years with unlimited milage from original date of purchase for issues related to this.
There was a class action suit "Soto et al v. American Honda Co. and information will be forthcoming at www.enginemisfiresettlement.com
, web site not up yet. You can also call 888-888-3082 for info but very little info available.
I will try to get the TSB scanned and put up.