Uniform Provisions Concerning the Approval of Vehicles with regard to the Location and Identification of Hand Controls, Tell-tales and Indicators

Related groups: GRSG
UN R121 | Revision 1 (2011)
4 Oct 2011 2011-10-17 17:17:21 UTC 1
UN R121 | Revision 1 | Amendment 1 (2011)
12 Dec 2011 2011-12-22 19:07:07 UTC 1 1 00 series of amendments | Supplement 5 Based upon the adopted proposal: WP.29/2011/38
UN R121 | Revision 1 | Amendment 2 (2012)
15 Aug 2012 2012-09-12 17:06:16 UTC 1 2 00 series of amendments | Supplement 6 Based upon the adopted proposal: WP.29/2011/112
UN R121 | Revision 1 | Amendment 3 (2013)
7 Jan 2013 2013-01-26 23:29:37 UTC 1 3 00 series of amendments | Supplement 7 Based upon the adopted proposal: WP.29/2012/26
UN R121 | Revision 1 | Amendment 3 | Corrigendum 1 (2013)
20 Dec 2013 2013-12-23 16:39:53 UTC 1 3 1
UN R121 | Revision 1 | Amendment 4 (2013)
6 Aug 2013 2013-08-20 11:00:58 UTC 1 4 00 series of amendments | Supplement 8 Based upon the adopted proposal: WP.29/2012/94

Proposal as adopted by the Working Party on General Safety Provisions (GRSG) at its 102nd session to add “A” and “AUTO” symbols for automatic systems and to apply ISO alert color coding (degree of danger hierarchy) to symbols 25 and 28 (brake system malfunction and parking brake, respectively).

This proposal is considered to be adopted and are binding upon all Contracting Parties applying Regulation No. 121 as of 15 July 2013.

UN R121 | Revision 1 | Amendment 5 (2015)
22 Jun 2015 2015-11-06 07:12:00 UTC 1 5 01 series of amendments Based upon the adopted proposal: WP.29/2012/30

Proposal for transitional provisions concerning the electronic stability control telltale and approval markings related to UN R121.

UN R121 | Revision 1 | Amendment 6 (2017)
26 Jul 2017 2017-08-15 11:25:09 UTC 1 6 00 series of amendments | Supplement 9 Based upon the adopted proposal: WP.29/2016/96

Proposal to enable the use of alternate colors (per footnote 18 of Table 1 and in line with ISO Standard 2575) for certain lighting tell-tales in order to indicate light source failures in response to the proposals for light failure indicators under UN Regulations Nos. 7, 48 and 87 (GRE/2016/7, GRE/2016/12 and GRE/2016/17) as adopted by GRE. This proposal anticipates use of the same approach in response to plans for additional failure indication requirements for other lighting regulations.

UN R121 | Revision 1 | Amendment 7 (2018)
2 Nov 2018 2019-02-11 16:25:46 UTC 1 7 00 series of amendments | Supplement 10 Based upon the adopted proposal: WP.29/2018/25

Proposal to apply footnote 18 to the symbol for tell-tale No. 1 (master lighting switch) in order to simplify the treatment of colour changes of tell-tales. Footnote 18 specifies "“Symbol may be shown in other colours than specified in column 5 in order to convey different meanings according to the general colour coding as proposed in paragraph 5. of ISO 2575-2004.” This proposal clarifies the existing understanding of the intent of the regulation and in particular addresses concerns over interpretation where tell-tales Nos. 1 and 19 have been combined.

UN R121 | Revision 2 (2015)
12 Nov 2015 2017-02-03 07:46:49 UTC 2 01 series of amendments Based upon the adopted proposal: WP.29/2012/30

Proposal for transitional provisions concerning the electronic stability control telltale and approval markings related to UN R121.

00 series of amendments | Supplement 8 Based upon the adopted proposal: WP.29/2012/94

Proposal as adopted by the Working Party on General Safety Provisions (GRSG) at its 102nd session to add “A” and “AUTO” symbols for automatic systems and to apply ISO alert color coding (degree of danger hierarchy) to symbols 25 and 28 (brake system malfunction and parking brake, respectively).

This proposal is considered to be adopted and are binding upon all Contracting Parties applying Regulation No. 121 as of 15 July 2013.

00 series of amendments | Supplement 7 Based upon the adopted proposal: WP.29/2012/26 00 series of amendments | Supplement 6 Based upon the adopted proposal: WP.29/2011/112 00 series of amendments | Supplement 5 Based upon the adopted proposal: WP.29/2011/38
UN R121 | Revision 2 | Amendment 1 (2017)
26 Jul 2017 2017-08-15 11:22:25 UTC 2 1 01 series of amendments | Supplement 1 Based upon the adopted proposal: WP.29/2016/97

Proposal to enable the use of alternate colors (per footnote 18 of Table 1 and in line with ISO Standard 2575) for certain lighting tell-tales in order to indicate light source failures in response to the proposals for light failure indicators under UN Regulations Nos. 7, 48 and 87 (GRE/2016/7, GRE/2016/12 and GRE/2016/17) as adopted by GRE. This proposal anticipates use of the same approach in response to plans for additional failure indication requirements for other lighting regulations.

UN R121 | Revision 2 | Amendment 2 (2018)
10 Aug 2018 2018-08-17 09:19:36 UTC 2 2 01 series of amendments | Supplement 2 Based upon the adopted proposals: WP.29/2017/116

Proposal to add a telltale and symbols for “Accident Emergency Call System (AECS)” and to align UN R121 with the 07 series of amendments to UN Regulation No. 16:

  1. the term “seat belt” is replaced by “safety belt”,
  2. the symbol for safety belt, defined in item 21 of Table 1 in the Regulation, may be displayed in different colours to convey different meanings. Therefore, the existing footnote 18 has been added to item 21, and
  3. this symbol may be replaced by different symbols for seats other than those of the front row. Therefore, a new footnote 22 is added to item 21.
In addition, paragraph 5.1.5. is modified and paragraph 5.1.7. introduced to take into consideration the content of GRSP/59, page 24, regarding paragraphs 8.4.3.2.1. and 8.4.4. on safety-belt reminders for occupants of rear seat row(s). This proposal does not change any of the technical requirements of UN R121.

WP.29/2017/116/Corr.1

Proposal from the WP.29 Secretariat for additional corrections to the table of tell-tales, concerning items 31 (Combustion
pre-heat; engine start aid) and 32 (Choke (cold starting device)).

UN R121 | Revision 2 | Amendment 3 (2018)
2 Nov 2018 2019-02-11 16:21:32 UTC 2 3 01 series of amendments | Supplement 3 Based upon the adopted proposal: WP.29/2018/26

Proposal to apply footnote 18 to the symbol for tell-tale No. 1 (master lighting switch) in order to simplify the treatment of colour changes of tell-tales. Footnote 18 specifies "“Symbol may be shown in other colours than specified in column 5 in order to convey different meanings according to the general colour coding as proposed in paragraph 5. of ISO 2575-2004.” This proposal clarifies the existing understanding of the intent of the regulation and in particular addresses concerns over interpretation where tell-tales Nos. 1 and 19 have been combined.

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