AGENCY:

National Highway Traffic Safety Administration, DOT.

ACTION:

Receipt of petition.

SUMMARY:

American Honda Motor Co., Inc. (Honda) ^[1] has determined that the tire pressure monitoring system (TPMS) low tire pressure warning for certain model year (MY) 2011 and 2012 Acura TSX passenger cars equipped with accessory 18-inch diameter wheels sold at Honda dealerships do not comply with paragraph S4.2(a) of Federal Motor Vehicle Safety Standard (FMVSS) No. 138 Tire Pressure Monitoring Systems. Honda has filed an appropriate report dated September 27, 2012, pursuant to 49 CFR Part 573, Defect and ( printed page 43966) Noncompliance Responsibility and Reports.

Pursuant to 49 U.S.C. 30118(d) and 30120(h) (see implementing rule at 49 CFR part 556), Honda submitted a petition 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.

This notice of receipt of Honda's petition is published under 49 U.S.C. 30118 and 30120 and does not represent any agency decision or other exercise of judgment concerning the merits of the petition.

Vehicles involved: Affected are approximately 212 model years 2011 and 2012 Acura TSX passenger cars equipped with accessory 18-inch diameter wheels sold at Honda dealerships.

NHTSA notes that the statutory provisions (49 U.S.C. 30118(d) and 30120(h)) that permit manufacturers to file petitions for a determination of inconsequentiality allow NHTSA to exempt manufacturers only from the duties found in sections 30118 and 30120, respectively, to notify owners, purchasers, and dealers of a defect or noncompliance and to remedy the defect or noncompliance. Therefore, these provisions only apply to the subject 212 ^[2] vehicles that Honda no longer controlled at the time it determined that the noncompliance existed.

Noncompliance: Honda explains that the noncompliance is that when the accessory wheels and tires are installed on the subject vehicles, the preset TPMS warning level cannot be adjusted to warn at a higher cold inflation pressure for the accessory tires. The TPMS system on these vehicles is set for the OEM 17-inch diameter wheels with recommended 230kPa (33psi), not the accessory 18-inch wheels with recommended 260kPa (38psi).

The TPMS warning level is based on the OEM tires, which is no lower than 183kPa (26.5psi), while the accessory wheel should be set to warn at no lower than 204kPa (29.5psi). Therefore, the vehicles do not comply with paragraph S4.2(a) of FMVSS No. 138.

Rule text: Paragraph S4.2(a) of FMVSS No. 138 requires in pertinent part:

S4.2  TPMS detection requirements. The tire pressure monitoring system must:

(a) Illuminate a low tire pressure warning telltale not more than 20 minutes after the inflation pressure in one or more of the vehicle's tires, up to a total of four tires, is equal to or less than either the pressure 25 percent below the vehicle manufacturer's recommended cold inflation pressure, or the pressure specified in the 3rd column of Table 1 of this standard for the corresponding type of tire, whichever is higher;

Summary of Honda's Analysis and Arguments

A total of approximately 848 wheels, or 212 complete wheel sets, were sold to Acura dealerships by Honda between November 2010 and April 2012. These wheels were sold with a replacement tire pressure placard, in accordance with the requirements of FMVSS No. 110 “Tire Selection and Rims”, indicating an inflation pressure of 260kPa (38psi) for the recommended 225/45ZR 18 tire size with an 95Y load capacity rating. There have been no reports of crashes, injuries or death as a result of the accessory tire being used with the standard TPMS threshold.

After the beginning of retail sales of 2012 model year Acura TSX models Honda discovered that the recommended electronic method of updating the TPMS setting for these accessory wheels would incorrectly inform technicians that the adjustments had been completed successfully. The result is that the TPMS warning threshold remains at the standard setting for the OEM 17-inch diameter wheels of not less than 183kPa (26.5psi) for the standard recommended tire pressure of 230kPa (33psi). The minimum allowable TPMS threshold for the 18-inch diameter accessory wheels would be 193kPA (28psi), based on the recommended pressure of 260kPa (38psi) as indicated on the tire pressure placard.

Honda believes that this noncompliance is inconsequential to motor vehicle safety because even at the lower TPMS threshold, adequate load capacity remains for the tires on these vehicles. Honda indicated that it also conducted dynamic testing to confirm that the handling and stability of the vehicle is not adversely affected at the lower pressures.

The maximum load capacity for each of the P225/45ZR 18 95Y tires for this vehicle is 575 kilograms (1,268 lbs) at 230kPa (33psi), calculated using the Japan Automotive Tyre Manufacturer's Association (JATMA) method, as recognized by NHTSA in FMVSS No. 110. The maximum allowable load according to the Gross Axle Weight Ratings (GAWR) for a 2011 or 2012 Acura TSX is 546.6 kilograms (1,207.2 lbs) for each front tire and 514.9 kilograms (1,135 lbs) for each rear tire, well within the load capacity specified by JATMA.

At 80% of the lower pressure for the OEM 17-inch tires (230kPa (33psi), as opposed to the 260kPa (38psi) recommended on the tire pressure placard for the 18-inch accessory tires), the low tire pressure indicator will illuminate at 183kPa (26.5psi).

Honda has additionally informed NHTSA that it has corrected the noncompliance so that all future vehicles will comply with FMVSS No. 138.

In summation, Honda believes that the described noncompliance of its vehicles is inconsequential to motor vehicle safety, and that its petition, to exempt from providing recall notification of noncompliance as required by 49 U.S.C. 30118 and remedying the recall noncompliance as required by 49 U.S.C. 30120 should be granted.

Comments: Interested persons are invited to submit written data, views, and arguments on this petition. Comments must refer to the docket and notice number cited at the beginning of this notice and be submitted by any of the following methods:

a. By mail addressed to: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

b. By hand delivery to U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. The Docket Section is open on weekdays from 10 a.m. to 5 p.m. except Federal Holidays.

c. Electronically: by logging onto the Federal Docket Management System (FDMS) Web site at http://www.regulations.gov/​. Follow the online instructions for submitting comments. Comments may also be faxed to 1-202-493-2251.

Comments must be written in the English language, and be no greater than 15 pages in length, although there is no limit to the length of necessary attachments to the comments. If comments are submitted in hard copy form, please ensure that two copies are provided. If you wish to receive confirmation that your comments were received, please enclose a stamped, self-addressed postcard with the comments. ( printed page 43967) Note that all comments received will be posted without change to http://www.regulations.gov, including any personal information provided.

Documents submitted to a docket may be viewed by anyone at the address and times given above. The documents may also be viewed on the Internet at http://www.regulations.gov by following the online instructions for accessing the dockets. DOT's complete Privacy Act Statement is available for review in the Federal Register published on April 11, 2000, (65 FR 19477-78).

The petition, supporting materials, and all comments received before the close of business on the closing date indicated below will be filed and will be considered. All comments and supporting materials received after the closing date will also be filed and will be considered to the extent possible. When the petition is granted or denied, notice of the decision will be published in the Federal Register pursuant to the authority indicated below.

Comment Closing Date: August 21, 2013.

Authority: (49 U.S.C. 30118, 30120: delegations of authority at 49 CFR 1.95 and 501.8)