Document ID: chunk:federal_register_of_legislation:F2017L01229:body:0:p11
Version: federal_register_of_legislation:F2017L01229
Segment Type: other
Provision Reference: 
Character Range: 29282–32022

the ESC system in different modes, at least one of which may no longer satisfy the performance requirements of paragraphs 7., 7.1., 7.2., and 7.3., shall fulfil the relevant technical requirements of Regulation No. 121.
 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 the "off" symbol for electronic stability control system as defined in Regulation No. 121.
7.5.4. 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 7., 7.1., 7.2. and 7.3. need not be identified by the "ESC Off" symbol of paragraph 7.5.2.
7.6. 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 7.5., the tell-tale requirements of paragraphs 7.6.1. to 7.6.4. 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 7.5.1.2.
7.6.1. 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 7., 7.1., 7.2. and 7.3., if such a mode is provided.
7.6.2. The "ESC Off" tell-tale:
7.6.2.1. Shall fulfil the relevant technical requirements of Regulation No. 121.
7.6.2.2. Shall remain continuously illuminated for as long as the ESC is in a mode that renders it unable to satisfy the requirements of paragraphs 7., 7.1., 7.2. and 7.3;
7.6.2.3. Except as provided in paragraphs 7.6.3. and 7.6.4. each "ESC Off" tell-tale shall be activated as a check of lamp function either when the ignition locking system is turned to the "On" ("Run") position when the engine is not running, or when the ignition locking system is in a position between "On" ("Run") and "Start" that is designated by the manufacturer as a check position.
7.6.2.4. Shall extinguish after the ESC system has been returned to the manufacturer's original default mode.
7.6.3. The "ESC Off" tell-tale need not be activated when a starter interlock is in operation.
7.6.4. The requirement of paragraph 7.6.2.3. of this section does not apply to tell-tales shown in a common space.
7.6.5. The manufacturer may use the "ESC Off" tell-tale to indicate an ESC level of function other than the manufacturer's original default mode even if the vehicle would meet paragraphs 7., 7.1., 7.2. and 7.3. of this section at that level of ESC function.
7.7. ESC system technical documentation
 The documentation package shall, as