Interpretation ID: nht87-1.81

TYPE: INTERPRETATION-NHTSA

DATE: 05/28/87

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Mr. Nobuyoshi Takechi

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Nobuyoshi Takechi Technical Manager MMC Services, Inc. 3000 Town Center Suite 1960 Southfield, MI 48075

Dear Mr. Takechi:

This responds to your letter requesting an interpretation of Standard No. 101, Controls and Displays. Your questions are responded to below.

By way of background information, the National Highway Traffic Safety Administration does not provide approvals of motor vehicles or motor vehicle equipment. Under the National Traffic and Motor Vehicle Safety Act, it is the responsibility of the manufac turer to ensure that its motor vehicles or equipment comply with applicable safety standards. The following represents our opinion based on the facts provided in your letter.

Your first question concerns the identification requirements for a master lighting switch. You stated your belief that if the headlamps and tail lamps are controlled by the master lighting switch, the switch is not required to be marked with any symbol o ther than that specified in Standard No. 101 for the master lighting switch. You also stated your belief that the manufacturer had an option to use other symbols in addition to that symbol. As discussed below, your understanding is correct.

Section S5.2.1(a) states:

Except as specified in S5.2.1(b), any hand-operated control listed in column 1 of Table 1 that has a symbol designated for it in column 3 of that table shall be identified by either the symbol designated in column 3 (or symbol substantially similar in fo rm to that shown in column 3) or the word or abbreviation shown in column 2 of that table. . . . Words or symbols in addition to the required symbol, word or abbreviation may be used at the manufacturer's discretion for the purpose of clarity. . . .

Column 3 of Table 1 designates the symbol shown In your letter for the master lighting switch. Also, footnote 2 of the table states that separate identification is not required for headlamps and tail lamps if they are controlled by a master lighting swit ch. Thus, the master lighting switch symbol is sufficient identification under Standard No. 101 for the control identified in your letter.

A drawing provided with your letter shows various positions of the master lighting switch Identified by a word or symbols, which are provided in addition to the master lighting switch symbol. As indicated in the above-quoted text, section S5.2. 1(a) perm its words or symbols in addition to the required symbol or word, for purposes of clarity.

Your second question concerns identification requirements for an upper beam control. You stated that you believe no symbol is required for the upper beam control if it is on the turn signal lever, and that it is at the manufacturer's option to use a symb ol.

Standard No. 101 does not specify any identification requirements for an upper beam control , regardless of whether it is on the turn signal lever. Thus, the manufacturer has the option of deciding whether to identify the control and, If so, how to ident ify it. We note that the symbol you plan to use for future models is the same as that designated in Standard No. 101 for the highbeam (upper beam) tell tale. Thus, your planned approach appears desirable in minimizing the number of symbols drivers must f amiliarize themselves with for the same function.

Sincerely, Erika Z. Jones Chief Counsel

Ms. Erika Jones, Chief Counsel NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION 400 Seventh Street, S.W. Washington, DC 20530

Dear Ms. Jones:

This letter serves to request an interpretation or FMVSS 101; Controls and displays.

We believe, (1) if the head lamps and tail lamps are controlled by master lighting switch, this is not required to be marked with any symbol , other than and it is the manufacturer's option to use other symbols in addition to the, as desired.

(2) When using the turn signal lever for the upper beam control, no symbol is required, and it is at the manufacturer's option to use symbol as desired.

Shown by current models in Attachment 1 are the symbols we have been using. In future models, we plan to change the symbols to those shown by future models in Attachment 1.

Please inform us in a timely manner if these symbols are acceptable and whether our interpretation is correct. If you have any questions, please contact me at (515) 353-5444.

Sincerely, Nobuyoshi Takechi Technical Manager NT/sg MMC SERVICES, INC. Attachment