UN R140: Proposal for Supplement 1
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Proposal to enable activation of the ESC optical symbol in cases of a corrective steering function intervention when the CSF intervention is activated under the control of an ESC system. The aim is to avoid separate requirements for brake-actuated and steering-actuated vehicle stability functions (VSF) that would lead to two optical warnings where only one is necessary. This would enable use of the ESC intervention tell-tale for CSF steering intervention.

Reference Number: WP.29/2018/13
Date: 26 December 2017
Proposal Status: Adopted
Related Documents:
GRRF-84-39 | Adopted amendments to GRRF/2017/23 (UN R13, 13-H, 140)
GRRF/2017/23 | Proposal for amendments to Regulations Nos. 13, 13-H and 140