National Highway Traffic Safety Administration July 23, 2012 – Federal Register Recent Federal Regulation Documents

American Honda Motor Co., Inc. (Honda), has determined that certain 2008 and 2009 model year Honda Civic Si model passenger cars when equipped with dealer accessory 18-inch diameter wheels do not fully comply with paragraph S4.2(a) of Federal Motor Vehicle Safety Standard (FMVSS) No. 138, Tire Pressure Monitoring Systems. Honda filed an appropriate report dated December 3, 2008, pursuant to 49 CFR part 573 Defect and Noncompliance Responsibility and Reports. Pursuant to 49 U.S.C. 30118(d) and 30120(h) and the rule implementing those provisions at 49 CFR Part 556, Honda has petitioned for an exemption from the notification and remedy requirements of 49 U.S.C. Chapter 301 on the basis that this noncompliance is inconsequential to motor vehicle safety. Notice of receipt of the petition was published, with a 30-day public comment period, on May 12, 2009 in the Federal Register (74 FR 22202). No comments were received. To view the petition, and supporting documents log onto the Federal Docket Management System (FDMS) Web site at: https:// www.regulations.gov/. Then follow the online search instructions to locate docket number ``NHTSA-2009-0084.'' For further information on this decision contact Mr. John Finneran, Office of Vehicle Safety Compliance, the National Highway Traffic Safety Administration (NHTSA), telephone (202)366-0645, facsimile (202) 366-5930. Vehicles involved: The exact number of vehicles involved is not known. However, a total of approximately 952 wheels, or 238 complete wheel sets, were sold to Honda dealerships by Honda between July, 2006 and September, 2008. These wheel sets were sold with a replacement tire pressure placard in accordance with FMVSS No. 110, indicating a tire inflation pressure of 250 kPa (36 PSI) for 215/40RZ18 tires having a load capacity rating of 85Y. Noncompliance: Honda explains that the noncompliance occurred because the recommended electronic method of updating the TPMS inflation pressure settings to accommodate proper installation of the subject optional wheel sets incorrectly informed technicians that the adjustments had been completed successfully. The result is that the TPMS inflation pressure warning threshold remains at the standard setting for the original equipment 17-inch wheels of not less than 175 kPa (25 PSI) for the standard recommended tire pressure of 230 kPa (33 PSI). The minimum allowable TPMS threshold for the 18-inch accessory wheels should be 190 kPa (27 PSI), based on the recommended pressure of 250 kPa (36 PSI) as indicated on the replacement tire pressure placard. As a result, the low tire pressure warning telltale required by S4.2(a) will not illuminate at the 27 PSI minimum allowable TPMS threshold necessitated by installation of the dealer accessory wheels and tires.