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Vehicle report

2014 STALLION 900

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Defect investigations

2 actions

PE15005 · PE

VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING Investigation

On February 27th, 2015 the Office of Defects Investigations (ODI) opened this Preliminary Evaluation (PE15-005) to investigate multiple incidents of windshield wiper electrical system failures on Stallion 900 series motor coaches manufactured by Stallion Bus and Transit Corporation.It was reported to ODI that wipers would stop operating when the wiper motor changed speeds, and would not function again until the bus is powered down and restarted.During the investigation, the manufacturer found that the 12 to 24 volt power converter in the subject vehicle's wiper system could erroneously shut off when the wiper speed is changed.An over-current or voltage protection circuit of the power converter is erroneously activated.To remedy this defect the manufacture is modifying the 12 volt power-up converter to have the over-current protection and the voltage protection removed from the Power Control Buss.All vehicles built after these units would use a power converter supplied by a different manufacturer, or a modified converter with the protection circuits disabled. With the recall action 16V-152 taken by Stallion this investigation is closed as further use of agency resources does not appear to be warranted.The ODI reports cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID using the following complaint identification numbers: 10630768, 10631041, 10633220, 10633236, 10632428, 10633201, 10633222, 10631019, 10631028, 10632409, 10632414

PE15004 · PE

SEAT BELTS:FRONT:BUCKLE ASSEMBLY Investigation

The Office of Defects Investigation (ODI) was in contact with a fleet that experienced multiple incidents of driver and passenger seatbelt buckle assemblies failing to unlatch.The seatbelts, manufactured by Taizhou TIANDA Rope and Belt Co, are original equipment on certain Stallion 900 motorcoaches.Preliminary evaluation suggested that two significantly different buckle assembly designs exist for a single part number 67RB1-04021.At the time of this investigation, failures appear to be limited to the earlier design. Shortly after opening this investigation, Taizhou Tianda Rope & Belt Co. Ltd decided to recall the earlier design buckles with safety recall 15E-016.An information request letter was not delivered before the recall was announced.Based on this action by the manufacturer, this investigation is closed.The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers: 10631019, 10632409, 10633199 and 10633213.

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Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.