# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 6.2


The manufacturer shall demonstrate that use of the sensors referred to in paragraph 6.1. above and any other sensors on the vehicle, results in the activation of the driver warning system as referred to in paragraph 3. above, the display of a message indicating an appropriate warning (e.g. ‘emissions too high — check urea’, ‘emissions too high — check AdBlue’, ‘emissions too high — check reagent’), and the activation of the driver inducement system as referred to in paragraph 8.3., when the situations referred to in paragraphs 4.2., 5.4., or 5.5. occur.
For the purposes of this paragraph these situations are presumed to occur if the applicable NOx OBD threshold limit of the tables set out in paragraph 2.3. of Annex XI is exceeded.
NOx emissions during the test to demonstrate compliance with these requirements shall be no more than 20 % higher than the OBD threshold limits.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/XVI/division/division/6./division/6.2. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-XVI/division/division-6./division-6.2.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.