RQ17 - 008 Closing

What NHTSA is examining

On February 26, 2016, Bergstrom Inc. notified NHTSA of a safety defect in approximately 10,819 of its ParkSmart auxiliary electrical temperature management units. These units were installed on Freightliner Cascadia Class 8 trucks that may overheat due to high resistance, resulting in possible fires. One of the contributing factors which led to this recall was a plastic vented cap covering the compressor connectors allowing increased flow of air to the overheated connectors, which increased the risk of a fire.ParkSmart units equipped with non-vented caps, according to Bergstrom, were not affected. See Bergstrom recall 16E-017.On March 7, 2016, Daimler Trucks North America (DTNA), the parent company of Freightliner, filed its corresponding defect decision as to the impacted Freightliner trucks.DTNA identified 8,865 model year 2015-2016 Freightliner Cascadia trucks installed with the ParkSmart units.On September 18, 2017, the Recall Management Division (RMD), opened this investigation to resolve the discrepancy between the larger number of units Bergstrom recalled with the smaller number of trucks DTNA identified as impacted, and to pursue additional recall actions as needed. RMD issued an information request to DTNA on Oct. 26, 2017 inquiring about the discrepancy, as well as field experience information.DTNA filed several responses of different dates that provided shipping and distribution information as well as field reports.DTNA explained that their recalled population was…

Vehicles under investigation