Document ID: chunk:federal_register_of_legislation:F2018C00341:body:0:p33
Version: federal_register_of_legislation:F2018C00341
Segment Type: other
Provision Reference: 
Character Range: 96913–99663

roads and that has the effect of locking the drive gears at the front and rear axles together, provided that in this mode the vehicle meets the stability performance requirements of paragraphs 3.1. and 3.2. under the test conditions specified in paragraph 4.  However, if the system has more than one ESC mode that satisfies the requirements of paragraphs 3.1. and 3.2. within the drive configuration selected for the previous ignition cycle, the ESC shall return to the manufacturer's original default ESC mode for that drive configuration at the initiation of each new ignition cycle.

       3.5.2. A control, whose only purpose is to place the ESC system in a mode in which it will no longer satisfy the performance requirements of paragraphs 3., 3.1., 3.2. and 3.3., shall be identified by the symbol shown for "ESC Off" below or the text "ESC OFF".
       3.5.3. A control for an ESC system whose purpose is to place the ESC system in different modes, at least one of which may no longer satisfy the performance requirements of paragraphs 3., 3.1., 3.2., and 3.3., shall be identified by the symbol below with the text "OFF" adjacent to the control position for this mode.
        Alternatively, in the case where the ESC system mode is controlled by a multi-functional control, the driver display shall identify clearly to the driver the control position for this mode using either the symbol in paragraph 3.5.2. or the text "ESC OFF".

       3.5.4. A control for another system that has the ancillary effect of placing the ESC system in a mode in which it no longer satisfies the performance requirements of paragraphs 3., 3.1., 3.2. and 3.3. need not be identified by the "ESC Off" symbol of paragraph 3.5.2.

3.6. ESC OFF tell-tale

        If the manufacturer elects to install a control to turn off or reduce the performance of the ESC system under paragraph 3.5., the tell-tale requirements of paragraphs 3.6.1. to 3.6.4. shall be met in order to alert the driver to the inhibited or reduced state of ESC system functionality.  This requirement does not apply for the driver-selected mode referred to in paragraph 3.5.1.2.

       3.6.1. The vehicle manufacturer shall provide a tell-tale indicating that the vehicle has been put into a mode that renders it unable to satisfy the requirements of paragraphs 3., 3.1., 3.2. and 3.3., if such a mode is provided.

       3.6.2. The "ESC Off" tell-tale:

       3.6.2.1. Shall be displayed in direct and clear view of the driver while in the driver's designated seating position with the driver's seat belt fastened;

       3.6.2.2. Shall appear perceptually upright to the driver while driving;

       3.6.2.3. Shall be identified by the symbol shown for "ESC Off" below or the text "ESC