Interpretation ID: 1985-01.33

TYPE: INTERPRETATION-NHTSA

DATE: 02/12/85

FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA

TO: Nick Martz -- Regional Sales Manager, Isuzu Diesel of North America

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Nick Martz Regional Sales Manager Isuzu Diesel of North America 41169 Vincenti Court Novi, Michigan 48050

This responds to your letter asking about identification requirements applicable to water temperature, oil pressure and alternator instruments on bread delivery trucks. You asked whether the symbols specified by Standard No. 101, Controls and Displays, are required for such trucks and, if so, whether it is permissible to use transparent decals with the proper symbols on the lenses. You also asked whether waivers can be issued. The answers to your questions are provided below.

Federal Motor Vehicle Safety Standard No. 101, Controls and Displays, specifies requirements for the location, identification, and illumination of motor vehicle controls and displays. Water temperature, oil pressure and alternator instruments are displays. While the standard's requirements for controls apply to all trucks, the standard's requirements for displays are only applicable to trucks with a gross vehicle weight rating of less than 10,000 pounds. See section S5.

Assuming that your bread trucks do have a gross vehicle weight rating of less than 10,000 pounds, the instruments must be identified by the symbols specified by Standard No. 101. Section S5.2.3 provides in relevant part:

Except for informational readout displays, any display located within the passenger compartment and listed in column 1 of Table 2 that has a symbol designated in column 4, shall be identified by that symbol. Such display may, in addition be identified by the word or abbreviation shown in column 3. . . . Additional words or symbols may be used at the manufacturer's discretion for the purpose of clarity. The identification required or permitted by this section shall be placed on or adjacent to the display that it identifies. The identification of any display shall, under the conditions of S6, be visible to the driver and appear to the driver perceptually upright.

The displays described by your letter are conventional guages rather than informational readout displays. (Informational readout displays are defined by the standard to be displays using light-emitting diodes, liquid crystals, or other electro illuminating devices where one or more than one type of information may be displayed.) Table 2 specifies symbols for, among other displays, oil pressure gauges, coolant temperature gauges, and electrical charge gauges. Therefore, under S5.2.3, the displays must be identified by the specified symbols.

Standard No. 101 does not specify the nature of the material to be used in identifying displays, i.e., paint, decals, etc. Therefore, it is permissible to use decals.

You also asked whether waivers can be issued. In a telephone conversation with Edward Glancy of this office, you indicated that some trucks have been produced using words rather than symbols to identify the gauges discussed above. 49 CFR Part 556 sets forth procedures for petitioning for exemption from the notification and remedy requirements of the National Traffic and Motor Vehicle Safety Act due to the inconsequentiality of a noncompliance with a safety standard as it relates to motor vehicle safety. I have enclosed a copy of Part 556 for your convenience, as well as a copy of Standard No. 101.

Sincerely, Frank Berndt Chief Counsel Enclosures

Lyall F. (Nick) Martz Zone Sales Manager Isuzu Diesel of North America 41169 Vincenti Court Novi, Michigan 48050-2689 (313) 474-8000

November 1, 1984 National Highway Traffic Safety Assoc. Office of Chief Counsel 400 7th Street S.W. Washington D.C. 20590

Re: Engine Instruments

Gentlemen:

We need your advice on water temperature, oil pressure, and alternator instruments in 1984 bread delivery trucks. We have had to change the above mentioned gauges since the original instruments in the vehicle are not compatible with our diesel engine.

The gauges we installed in the vehicle in an accessory panel are 2-inch dials with illumination lights.

The new oil pressure gauge manufactured by F. W. Murphy has a black dial with white numbers and pointer and is calibrated in PSI and K/CM3 but has no ISO symbol.

The water temperature gauge manufactured by VDO has the same type dial and is calibrated in Fo and Co. This gauge has an ISO symbol like the one used in SAE J-298 for industrial applications.

The alternator light has Alt. between the red 1/2" diameter lense and the light. This light is illuminated in the accessory position and crank position but goes out when the engine is running.

We have contacted V.D.O. and Murphy Mfg. and they informed us they do not make gauges with the FMVSS 101 symbol on them.

The problem we have is that the 96 vehicles with these gauges are now ready for delivery, but the missing ISO symbols will delay delivery to the customer. The gauge manufacturer says it will take 12 weeks to develop the proper symbol.

Is it necessary to use Automotive ISO symbols on E-350 delivery trucks, or can a waiver be issued? If symbols are necessary, is it acceptable to use transparent decals with the proper symbols on the lense?

I would appreciate your prompt attention and answer on this matter since time is critical.

Please call at your earliest opportunity.

Regards, Nick Martz Regional Sales Manager Enclosures