Interpretation ID: 1703y
Alpine Electronics of America, Inc.
l00 North Centre Avenue
Rockville Centre, NY ll570
Dear Ms. Rooney:
This responds to your letter requesting an interpretation of Federal Motor Vehicle Safety Standard No. l0l, Controls and Displays. We apologize for the delay in our response. You stated that it is your understanding that any car sound system which is factory installed must have light intensities that have two values, a higher one for day and a lower one for night; that these two light intensities do not have to be variable; and that any color may be used to illuminate the system. You asked for confirmation of this understanding. As discussed below, Standard No. l0l's requirements in this area are somewhat more flexible than suggested by your letter.
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 manufacturer 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.
The requirements of Standard No. l0l that are relevant to car sound systems are set forth in section S5.3.5. That section states:
S5.3.5 Any source of illumination within the passenger compartment which is forward of a transverse vertical plane 4.35 inch (ll0.6 mm) rearward of the manikin "H" point with the driver's seat in its rearmost driving position, which is not used for the controls and displays regulated by this standard, which is not a telltale, and which is capable of being illuminated while the vehicle is in motion, shall have either (l) light intensity which is manually or automatically adjustable to provide at least two levels of brightness, (2) a single intensity that is barely discernible to a driver who has adapted to dark ambient roadway conditions, or (3) a means of being turned off. This requirement does not apply to buses that are normally operated with the passenger compartment illuminated.
With respect to car sound systems, section S5.3.5's requirements can be summarized as follows. First, the requirements generally apply to any car sound system that is installed in a motor vehicle before its first sale to a consumer and that includes a source of illumination which is forward of the driver. Second, the section requires that any such source of illumination have either (l) light intensity which is manually or automatically adjustable to provide at least two levels of brightness, (2) a single intensity that is barely discernible to a driver who has adapted to dark ambient roadway conditions, or (3) a means of being turned off. No color requirements are specified for the source of illumination of a car sound system.
I would note that, at the option of the manufacturer, motor vehicles manufactured before September l, l989, may comply with the requirements of Standard No. l00 instead of the requirements of Standard No. l0l. This provision is of relevance for some, but not all, car sound systems, and only for vehicles manufactured before September l, l989. If you desire further information about this provision, please contact us.
Sincerely,
Erika Z. Jones Chief Counsel
/ref:101 d:3/7/89