UN R130 Supplement 2 (00 series) · UNECE Regulation No. 130 (ECE R130) — Uniform provisions concerning the approval of motor vehicles with regard to the Lane Departure Warning System (LDWS).
UN R130 — Supplement 2 to the 00 series of amendments
Supplement 1 → 2
- What changed
- If a vehicle is equipped with a means to deactivate the LDWS function, the function must be automatically reinstated at each initiation of the powertrain.
- An automatic new engine start (or run cycle), for example by a stop/start system, is not an “initiation of the powertrain” anywhere in this Regulation.
- While the simulated failure exists, the failure warning signal must be reactivated after each subsequent initiation of the powertrain.
- Why
- The changes align the text with the text already agreed in ECE/TRANS/WP.29/2025/87 and ECE/TRANS/WP.29/2025/90.
- The term “powertrain”, as defined in M.R.2, lets the provisions be technology neutral and avoids outdated terminology implying combustion engine cycles.
Q1What changed3 changes
LDWS function reinstated at each initiation of the powertrain (para. 5.3.1.)
If a vehicle is equipped with a means to deactivate the LDWS function, the function must be automatically reinstated at each initiation of the powertrain. Wherever the Regulation uses that term, a new engine start (or run cycle) that is performed automatically is not an “initiation of the powertrain”. An example is the operation of a stop/start system. Before this supplement, the function was reinstated at the initiation of each new ignition “on” (run) cycle. New footnote 3 on “powertrain” refers to the vehicle propulsion system definitions in Mutual Resolution No. 2 (M.R.2), document ECE/TRANS/WP.29/1121.
Failure warning signal with a simulated failure (para. 6.6.2.)
The failure warning signal must be reactivated after each subsequent initiation of the powertrain, as long as the simulated failure exists. Before this supplement, it was reactivated after a subsequent ignition “off” ignition “on” cycle. The signal must still be activated and remain activated while the vehicle is being driven.
Q2Why it changed
- Proposed by
- Expert from the United Kingdom of Great Britain and Northern Ireland
- Working party
- GRVA, 23rd session (September 2025)
Reasons
The document clarifies the wording “run cycle” in UN Regulation No. 130. GRVA had already done this for several regulations at previous sessions.
Source
“clarifying the wording “run cycle” in UN Regulation No. 130, as already done for several regulations at previous GRVA sessions”
The changes align the text with the text already agreed in ECE/TRANS/WP.29/2025/87 and ECE/TRANS/WP.29/2025/90. These documents were adopted at the June 2025 session of WP.29.
Source
“The proposed modifications align the text with that already agreed, as contained in working documents ECE/TRANS/WP.29/2025/87 and ECE/TRANS/WP.29/2025/90, which were adopted at the June 2025 session of WP.29.”
This follows the direction previously notified in GRVA that other Regulations would also be updated to this terminology. The approach gives consistency across UN Regulations managed by GRVA. It supports a clear and harmonised understanding across all propulsion types, including electric and alternative powertrains.
Sources (2)
“This aligns with the direction previously notified in GRVA that other Regulations would also be updated to reflect this terminology.”
“The approach ensures consistency across UN Regulations managed by GRVA and supports a clear and harmonised understanding across all propulsion types, including electric and alternative powertrains.”
M.R.2 gives harmonised definitions for vehicle propulsion systems that do not depend on the fuel type or technology used. The term “powertrain”, as defined in M.R.2, lets the provisions be technology neutral. It also avoids outdated terminology implying combustion engine cycles.
Sources (2)
“M.R.2 provides harmonised definitions for vehicle propulsion systems that are independent of the fuel type or technology used.”
“Referring to “powertrain”, as defined in M.R.2, enables provisions that are technology neutral and avoids outdated terminology implying combustion engine cycles.”
By using this definition, the proposal simplifies the text and improves clarity. It also gives consistency across current and future vehicle technologies.
Source
“By adopting this definition, the proposal simplifies the text, improves clarity, and ensures consistency across current and future vehicle technologies.”
Document trail
- 2025-07ProposalECE/TRANS/WP.29/GRVA/2025/42Proposal by the expert from the United Kingdom of Great Britain and Northern Ireland
- —Working party adoptsECE/TRANS/WP.29/GRVA/23Session report, para. 54
- 2025-12Sent to WP.29ECE/TRANS/WP.29/2026/19Text that GRVA sent to WP.29 and AC.1
- 2026-03WP.29 adoptsECE/TRANS/WP.29/1190Adopted at the 198th session (session report, para. 114)
- 2026-09-30In forceC.N.419.2026.TREATIES-XI.B.16.130UN depositary notification
Q3Who is affected
Vehicle manufacturer
- Check that the LDWS function, if it can be deactivated, is automatically reinstated at each initiation of the powertrain.
- Use the M.R.2 definition of “powertrain” (document ECE/TRANS/WP.29/1121) when you apply paragraph 5.3.1.
Component supplier
- No direct action for this role.
Technical service / Approval authority
- Check that the failure warning is reactivated after each subsequent initiation of the powertrain while the simulated failure exists.
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ⓘ This report gives advice only. It is not legal or type-approval advice.