GAR

Proposal to remove references to system-initiated manoeuvres (SIM) to reduce risks of misinterpretation of the regulation. The approval of SIM has not yet been proposed by the ADAS task force.

Reference Number:	GRVA/2025/31
Meeting Session(s):	22nd GRVA session (2-6 Jun)
Document date:	08 Apr 25
Document status:	Formal GR review
Regarding:	UN R171 DCAS
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UN Regulation No. 171

Driver-Control Assistance Systems (DCAS)

Original text | Supplement 3

Original text

Supplement 1

Supplement 3

Supplement 2

01 series of amendments

Original text | Supplement 3 was established by the adoption of the following proposals

GRVA/2025/31 UN R171: Proposal for a Supplement

Reference Number:	IWVTA-49-02
Meeting Session(s):	49th IWVTA session (6 Nov)
Document date:	22 Aug 25
Regarding:	UN R0 International Whole Vehicle Type Approval

Reference Number:	A-LCA-SG2-23-01
Meeting Session(s):	23rd A-LCA-SG2 session (28 Aug)
Document date:	22 Aug 25
Regarding:	Automotive Life Cycle Assessment

Reference Number:	TFCS-35-01
Meeting Session(s):	35th TFCS session (11 Sep)
Document date:	22 Aug 25
Regarding:	UN R155 Cybersecurity \| UN R156 SW Updates \| Cyber Security Guidelines \| Software Updates Guidelines

Reference Number:	GRE-92-09
Meeting Session(s):	92nd GRE session (22-25 Apr)
Document date:	21 Aug 25
Regarding:	RE5: Light-source specifications