{"id":4412,"date":"2016-12-01T18:27:27","date_gmt":"2016-12-01T18:27:27","guid":{"rendered":"https:\/\/techlinkfrench.mynetworkcontent.com\/?p=4412"},"modified":"2017-03-27T19:51:49","modified_gmt":"2017-03-27T19:51:49","slug":"unwanted-brake-apply-in-reverse-without-park-assist-activation","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=4412","title":{"rendered":"Application involontaire des freins en marche arri\u00e8re sans activation de l&#8217;assistance au stationnement"},"content":{"rendered":"<p>Certains mod\u00e8les CT6 2016-2017 et XT5 2017 peuvent rencontrer un probl\u00e8me d&#8217;application involontaire des freins lorsque le v\u00e9hicule se trouve en marche arri\u00e8re (R) alors qu&#8217;aucun objet ne se trouve derri\u00e8re le v\u00e9hicule ni autour de lui. Cette condition se pr\u00e9sente souvent le matin, quand le v\u00e9hicule est impr\u00e9gn\u00e9 par le froid de la nuit, ou lorsque le v\u00e9hicule est rest\u00e9 en stationnement \u00e0 l&#8217;ext\u00e9rieur pendant plusieurs heures, par de basses temp\u00e9ratures.<\/p>\n<p>&nbsp;<\/p>\n<p>Le rendement du capteur radar arri\u00e8re \u00e0 courte port\u00e9e peut \u00eatre d\u00e9grad\u00e9 par de basses temp\u00e9ratures ambiantes, en-dessous de 50\u00b0F (10\u00b0C), ce qui peut provoquer l&#8217;activation involontaire des freins quand le v\u00e9hicule effectue une marche arri\u00e8re.<\/p>\n<p>&nbsp;<\/p>\n<p>Le capteur radar arri\u00e8re \u00e0 courte port\u00e9e, situ\u00e9 derri\u00e8re le car\u00e9nage arri\u00e8re (fig. 14, XT5 illustr\u00e9), est con\u00e7u pour d\u00e9tecter les objets jusqu&#8217;\u00e0 environ 98\u00a0pieds (30\u2009m\u00e8tres). Le capteur radar arri\u00e8re \u00e0 courte port\u00e9e communique avec le module de commande de s\u00e9curit\u00e9 active, via les donn\u00e9es s\u00e9rie, sur le bus de d\u00e9tection d&#8217;objet, en tant que partie du syst\u00e8me d&#8217;avertissement de marche arri\u00e8re et du syst\u00e8me de freinage automatique arri\u00e8re.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4413\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/03\/F14-XT5-sensor-R-copy.png\" alt=\"F14 XT5 sensor R copy\" width=\"600\" height=\"416\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/03\/F14-XT5-sensor-R-copy.png 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/03\/F14-XT5-sensor-R-copy-300x208.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 14<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Une fois que le capteur radar arri\u00e8re \u00e0 courte port\u00e9e se r\u00e9chauffe jusqu&#8217;\u00e0 des temp\u00e9ratures sup\u00e9rieures \u00e0 50\u00b0F (10\u00b0C), la condition dispara\u00eet et ne peut pas \u00eatre reproduite \u00e0 la concession.<\/p>\n<p>&nbsp;<\/p>\n<p>Ne remplacer aucune pi\u00e8ce et ne tenter aucune r\u00e9paration pour cette condition. Le service technique GM \u00e9tudie la cause fondamentale. Pour traiter cette condition, actuellement, utiliser le syst\u00e8me de d\u00e9marrage \u00e0 distance pour faire d\u00e9marrer le v\u00e9hicule avant la conduite, ce qui permet au capteur radar arri\u00e8re \u00e0 courte port\u00e9e de se r\u00e9chauffer, ou d\u00e9sactiver la fonction d&#8217;assistance au stationnement (fig. 15, CT6 illustr\u00e9e) en effectuant une marche arri\u00e8re apr\u00e8s un d\u00e9marrage \u00e0 froid.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4414\" src=\"http:\/\/sandyblogs.com\/techlink_french\/wp-content\/uploads\/2017\/03\/F15-CT6-park-assist-copy.png\" alt=\"F15 CT6 park assist copy\" width=\"600\" height=\"400\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/03\/F15-CT6-park-assist-copy.png 600w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2017\/03\/F15-CT6-park-assist-copy-300x200.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 15<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Katul Patel<\/em><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Certains mod\u00e8les CT6 2016-2017 et XT5 2017 peuvent rencontrer un probl\u00e8me d&#8217;application involontaire des freins lorsque le v\u00e9hicule se trouve en marche arri\u00e8re (R) alors qu&#8217;aucun objet ne se trouve [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4412","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4412"}],"version-history":[{"count":3,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4412\/revisions"}],"predecessor-version":[{"id":4483,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/4412\/revisions\/4483"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}