3. A vehicle is fitted with more than two rear fog lamps.

3. One or two rear fog lamps.

ACDelco D6378D GM Original Equipment Rear Window Wiper, Rear Window Washer, and Front Fog Lamp Switch

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  • Typically, bulbs of 21 to 27 , producing 280 to 570 (22 to 45 ) are used for stop, turn, reversing and rear fog lamps, while bulbs of 4 to 10 W, producing 40 to 130 (3 to 10 mscp) are used for tail lamps, parking lamps, side marker lamps and side turn signal repeaters.[]

    Proponents of twin rear fog lamps say two lamps provide vehicle distance information not available from a single lamp. Proponents of the single rear fog lamp say dual rear fog lamps closely mimic the appearance of illuminated stop lamps (which are mandatorily installed in pairs), reducing the conspicuity of the stop lamps' message when the rear fogs are activated. To provide some safeguard against rear fog lamps being confused with stop lamps, UN Regulation 48 requires a separation of at least 10 cm between the closest illuminated edges of any stop lamp and any rear fog lamp.

  • Most jurisdictions permit rear fog lamps to be installed either singly or in pairs. If a single rear fog is fitted, most jurisdictions require it to be located at or to the driver's side of the vehicle's centreline—whichever side is the in the country in which the vehicle is registered. This is to maximize the sight line of following drivers to the rear fog lamp. In many cases, a single reversing lamp is mounted on the passenger side of the vehicle, positionally symmetrical with the rear fog. If two rear fog lamps are fitted, they must be symmetrical with respect to the vehicle's centreline.

    In Europe and other countries adhering to UN Regulation 48, vehicles must be equipped with one or two bright red "rear lamps", which serve as high-intensity rear position lamps to be turned on by the driver in conditions of poor visibility to make the vehicle more visible from the rear. The allowable range of intensity for a rear fog lamp is 150 to 300 candela, which is within the range of a U.S. stop lamp (brake light). Rear fog lamps are not required equipment in the U.S., however, they are permitted, and are found almost exclusively on European-brand vehicles in North America—Audi, Jaguar, Mercedes, MINI, Land Rover, Porsche, Saab and Volvo provide functional rear fog lights on their North American models. Some vehicles from non-European brands which are adaptions of European-market offerings, such as the first generation , come standard with rear fog lights, or vehicles with European market counterparts, such as the second generation , have an option for them.[] The final generation also had dual rear fog lights installed in the rear bumper as standard equipment.[]

      #5  
    07-03-2008, 11:34 AM
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    So there's a separate button for the rear fog lamps???

    Anyone have a photo??

  • Most jurisdictions permit rear fog lamps to be installed either singly or in pairs. If a single rear fog is fitted, most jurisdictions require it to be located at or to the driver's side of the vehicle's centreline — whichever side is the prevailing driver's side in the country in which the vehicle is registered.[15] This is to maximise the sight line of following drivers to the rear fog lamp. In many cases, a single reversing lamp is mounted on the passenger side of the vehicle, positionally symmetrical with the rear fog. If two rear fog lamps are fitted, they must be symmetrical with respect to the vehicle's centreline.[15] Proponents of twin rear fog lamps say two lamps provide vehicle distance information not available from a single lamp. Proponents of the single rear fog lamp say dual rear fog lamps closely mimic the appearance of illuminated stop lamps (which are mandatorily installed in pairs), reducing the conspicuity of the stop lamps' message when the rear fogs are activated. To provide some safeguard against rear fog lamps being confused with stop lamps, ECE R48 requires a separation of at least 10 cm between the closest illuminated edges of any stop lamp and any rear fog lamp.[15]

    The rear fog lamps only operate when the headlamps are illuminated and the ignition switch is in position "II". The non-latching switch is positioned adjacent to the HRW switch on the dash panel. When the rear fog lamps are switched on, the instrument pack warning lamp also illuminates. The fog lamps are automatically switched off every time the ignition is turned off.

The Effectiveness of Rear Fog Lights [HD]

A vehicle originally manufactured with a front- or rear-fog-lamp arrangement that differs from what is required or permitted in this section may retain the original front or rear fog lamps provided they remain fitted in their original position and perform as intended by the vehicle manufacturer.