UN Regulation No. 140: Electronic Stability Control Systems

Uniform provisions concerning the approval of passenger cars with regard to electronic stability control systems

Related groups: GRRF and GRVA
UN R140 (2017)
31 Jan 2017 2017-02-03 09:16:57 UTC 00 series of amendments Based upon the adopted proposal: WP.29/2016/62

Proposal for a new UN Regulation comprised of provisions concerning electronic stability control systems extracted from UN R13-H in order to facilitate work on the international whole vehicle type approval system.

UN R140 | Amendment 1 (2018)
2 Nov 2018 2019-01-25 09:43:53 UTC 1 00 series of amendments | Supplement 1 Based upon the adopted proposal: WP.29/2018/13

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.

UN R140 | Amendment 2 (2019)
16 Jan 2019 2019-01-25 09:44:29 UTC 2 00 series of amendments | Supplement 2 Based upon the adopted proposal: WP.29/2018/61

Proposal to remove “if fitted” language from the text to clarify that UN R140 can only be applied to a vehicle equipped with a ESC system. UN R140 was originally established through the extraction of electronic stability controls (ESC) provisions from UN R13-H on brake systems. Within the context of UN R13-H, the ESC provisions were written to assess performance in cases where a vehicle was fitted with an electronic stability control system. As a stand-alone regulation, however, UN R140 applies only to vehicles that are equipped with ESC. The proposal also would correct an apparent error in to Annex 4, paragraph 2.1. where the reference to “ISO 15037 Part 1:2005” should read “ISO 15037 Part 1:2006”.

UN R140 | Amendment 3 (2020)
29 Jan 2020 2020-02-18 10:15:27 UTC 3 00 series of amendments | Supplement 3 Based upon the adopted proposal: WP.29/2019/49

Proposal to clarify that UN R140 does not mandate the installation of electronic stability control systems (ESC) on vehicles but rather specifies requirements for the approval of vehicles should they be equipped with an ESC system.

Earlier texts may be available through the UN Official Document System.