Section 25108 Of Article 6. Side And Fender Lighting Equipment From California Vehicle Code >> Division 12. >> Chapter 2. >> Article 6.
25108
. (a) Any motor vehicle may be equipped with not more than two
amber turn-signal pilot indicators mounted on the exterior. The
light output from any indicator shall not exceed five candlepower
unless a provision is made for operating the indicator at reduced
intensity during darkness in which event the light output shall not
exceed five candlepower during darkness or 15 candlepower at any
other time. The center of the beam shall be projected toward the
driver.
(b) Any vehicle may be equipped with pilot indicators visible from
the front to monitor the functioning or condition of parts essential
to the operation of the vehicle or of equipment attached to the
vehicle that is necessary for protection of the cargo or load. The
pilot indicators shall be steady-burning, having a projected lighted
lens area of not more than three-quarters of a square inch and have a
light output of not more than five candlepower. The pilot indicator
may be of any color except red.
(c) Other exterior pilot indicators of any color may be used for
monitoring exterior lighting devices, provided that the area of each
indicator is less than 0.20 square inches, the intensity of each
indicator does not exceed 0.10 candlepower, and the color red is not
visible to the front.
(d) Any towed vehicle may be equipped with an exterior-mounted
indicator lamp used only to indicate the functional status of an
antilock braking system providing that either of the following
conditions are met:
(1) The indicator lamp complies with the applicable requirements
of the federal motor vehicle safety standards.
(2) The indicator lamp is designed and located so that it will be
readily visible, with the assistance of a rearview mirror if
necessary, to the driver of the towing motor vehicle and the
indicator lamp has a light source not exceeding five candlepower. The
light shall not show to the sides or rear of the vehicle and the
indicator lamp may emit any color except red.
(e) (1) Notwithstanding any other provision of law, any motor
vehicle may be equipped with not more than two exterior-lighted data
monitors that transmit information to the driver of the vehicle
regarding the efficient or safe operation, or both the efficient and
safe operation, of the vehicle.
(2) Data monitors shall comply with all of the following
conditions:
(A) Be mounted to the vehicle in a manner so that they are readily
visible to the driver of the vehicle when the driver is seated in
the normal driving position. Data monitors shall not be designed to
convey information to any person other than the driver of the
vehicle.
(B) Be limited in size to not more than two square inches of
lighted area each.
(C) Not emit a light brighter than reasonably necessary to convey
the intended information.
(D) Not project a glaring light to the driver or, to other
motorists, or to any other person.
(3) Data monitors may incorporate flashing or changing elements
only as necessary to convey the intended information. Data monitors
shall not resemble any official traffic-control device or required
lighting device or be combined with any required lighting device.
(4) Data monitors may display any color, except that the color red
shall not be visible to the front of the vehicle.
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