Reported risk: Certain trucks fail to comply with the requirements of CMVSS 121 - Air Brake Systems. In designing a Primaax suspension into certain models, engineers relocated the single relay valve. The relocation increased overall air line length, exceeding the limit for the single valve system. This would result in delayed brake application which could cause a vehicle crash with injury or death. Correction: Dealers will convert vehicles from a single relay valve to a dual relay valve system.
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ProductGuru indexes recall and safety-alert records from ~30 public agency registries. We are not lawyers, regulators or product-safety consultants. This page restates what the named agency published; consult the primary source above (or qualified counsel in your jurisdiction) before any commercial, medical or safety decision.