{"id":9112,"date":"2026-02-01T14:25:05","date_gmt":"2026-02-01T19:25:05","guid":{"rendered":"https:\/\/gm-techlinkfrench.com\/?p=9112"},"modified":"2026-03-20T14:26:26","modified_gmt":"2026-03-20T18:26:26","slug":"fonctionnement-intermittent-de-leclairage-avant","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=9112","title":{"rendered":"Fonctionnement intermittent de l&#8217;\u00e9clairage avant"},"content":{"rendered":"<p>Les phares, les feux de jour (DRL), les feux de stationnement et\/ou les clignotants peuvent fonctionner de mani\u00e8re intermittente sur certains camions Silverado 2500HD\/3500HD et Sierra 2500HD\/3500HD de 2024 \u00e0 2026 (Fig. 1). Le fonctionnement de l&#8217;\u00e9clairage peut \u00eatre r\u00e9tabli apr\u00e8s avoir coup\u00e9 et remis le contact.<\/p>\n<p style=\"text-align: center;\">\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9113\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F01-Headlamps-2.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F01-Headlamps-2.png 740w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F01-Headlamps-2-300x195.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F01-Headlamps-2-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 1<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Le fonctionnement intermittent de l&#8217;\u00e9clairage avant peut \u00eatre d\u00fb \u00e0 une d\u00e9faillance interne du circuit d&#8217;alimentation DEL multifonction (MLD), qui contr\u00f4le les fonctions d&#8217;\u00e9clairage du bloc optique (Fig. 2 : A. MLD sur le bloc optique Chevrolet. B. MLD sur l&#8217;ensemble GMC). Si le MLD est d\u00e9fectueux, il doit \u00eatre remplac\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9114\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F02-Headlamps-1-R.png\" alt=\"\" width=\"1137\" height=\"702\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F02-Headlamps-1-R.png 1137w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F02-Headlamps-1-R-300x185.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F02-Headlamps-1-R-1024x632.png 1024w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F02-Headlamps-1-R-768x474.png 768w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F02-Headlamps-1-R-780x482.png 780w\" sizes=\"auto, (max-width: 1137px) 100vw, 1137px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 2<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>CONSEIL :<\/strong> avant de remplacer le MLD, consulter le bulletin n\u00b0 25-NA-337 et v\u00e9rifier la date julienne et la r\u00e9f\u00e9rence de l&#8217;ensemble de phares. Un probl\u00e8me de soudure sur certaines lampes peut entra\u00eener le dysfonctionnement des fonctions d&#8217;\u00e9clairage sur certains mod\u00e8les Sierra 2500HD\/3500HD 2025. Les phares concern\u00e9s doivent \u00eatre remplac\u00e9s (Fig. 3)<\/p>\n<p>Pour remplacer le MLD, se reporter \u00e0 la section Remplacement du phare avant dans les informations d&#8217;entretien appropri\u00e9es.<\/p>\n<p style=\"text-align: center;\">\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9115\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F03-Headlamps-3.png\" alt=\"\" width=\"1133\" height=\"766\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F03-Headlamps-3.png 1133w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F03-Headlamps-3-300x203.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F03-Headlamps-3-1024x692.png 1024w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F03-Headlamps-3-768x519.png 768w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F03-Headlamps-3-780x527.png 780w\" sizes=\"auto, (max-width: 1133px) 100vw, 1133px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 3<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Une fois le phare retir\u00e9, le MLD peut \u00eatre retir\u00e9 de l&#8217;ensemble. Installer le nouveau MLD dans l&#8217;ensemble et v\u00e9rifier que le joint est correctement positionn\u00e9 contre le bo\u00eetier. Les vis fixant le MLD doivent \u00eatre serr\u00e9es \u00e0 la main, en prenant soin de ne pas endommager les trous du bo\u00eetier.<\/p>\n<p>Avant de r\u00e9installer l&#8217;ensemble de phares, v\u00e9rifier son bon fonctionnement. Si l&#8217;\u00e9clairage ne fonctionne pas correctement, remplacer l&#8217;ensemble de phares.<\/p>\n<p>Se reporter au bulletin n\u00b0 26-NA-002 pour plus d&#8217;informations, y compris les num\u00e9ros de pi\u00e8ces.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Kevin Minor<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les phares, les feux de jour (DRL), les feux de stationnement et\/ou les clignotants peuvent fonctionner de mani\u00e8re intermittente sur certains camions Silverado 2500HD\/3500HD et Sierra 2500HD\/3500HD de 2024 \u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"class_list":["post-9112","post","type-post","status-publish","format-standard","hentry","category-2026-february"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9112","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=9112"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9112\/revisions"}],"predecessor-version":[{"id":9116,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9112\/revisions\/9116"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}