This SAE Recommended Practice establishes a uniform procedure for assuring the manufactured quality, provision for proper installation, and service performance of certain automotive products, specifically, the relocation, alteration, replacement and/or extension of secondary controls and systems. These include the following:
Cruise Control; Door Locks; Gear Selector; Hazard Flasher; Headlight Beam Selector; Heater/Vent/Air Conditioner (HVAC); Horn; Ignition/Starter; Light controls; Mirrors; Parking Brake; Power Seats; Rear Accessories (Defogger, Wiper/Washer); Turn Signals; Window Regulators; and Windshield Wiper/Washer.
The purpose of any Secondary control adaptation is to provide the effective use of the motor vehicle operating systems to a driver with a disability, so that he or she may drive and operate that motor vehicle with the same degree of safety as a driver who does not have a disability. Thus, the adaptive equipment must be (1) accessible to the driver with a disability for whom it is designed, (2) not susceptible to inadvertent operation which may be inconvenient or dangerous for the driver and other users of the highway transportation system, and (3) suitable for use by other drivers who may have a need to operate the motor vehicle.