Reported risk: On certain trucks equipped with a Cummins ISM CM876 engine, the Electronic Control Module (ECM) fails to recognize inputs of the vehicle Electronic Control Unit (ECU) or from a driver actuated dash switch thereby increasing the risk of unintended (or unexpected) elevated exhaust temperatures. While this condition does not involve a risk of fire in the vehicle itself, it could present a fire hazard in a situation where the vehicle's exhaust is in close proximity to materials or substances that can melt, burn or explode. Correction: Dealers will install updated ECM software.
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