On June 14, 2014, a consumer petitioned the National Highway Traffic Safety Administration (NHTSA) to open a defect investigation into separation of convertible top back glass in model year 2005 Crossfire Roadster vehicles.In assessing the petitioner's request, NHTSA reviewed information from the petitioner, information from Fiat Chrysler Automobiles US, LLC, relevant reports in the NHTSA complaint database received from June 23, 2008 through July 8, 2015, and interviews with complainants.NHTSA's review indicates that separation of the back glass occurs gradually and the glass remains intact and inside the top after the failure. Considering agency priorities and agency resources, and the likelihood that further investigation would not result in a defect finding, NHTSA has concluded that further investigation of petitioner's concerns is not warranted.The agency has denied the petition.The official petition denial, as published in the Federal Register, is available in the document file for this petition.The ODI reports cited above can be viewed at WWW-Odi.nhtsa.dot.gov/owners/searchsafetyissues under the following ID numbers:Model Year 2005: 10232068, 10244032, 10265936, 10272683, 10274198, 10275338, 10280257, 10285544, 10286600, 10290809, 10292215, 10295419, 10297744, 10304575, 10317910, 10318467, 10327077, 10327241, 10327522, 10330552, 10330824, 10331549, 10331660, 10332687, 10335152, 10335647, 10335784, 10335894, 10336569, 10339952, 10340666, 10341739, 10341764, 10341994, 10342121, 10344548, 10346187, 10346634, 10348093, 10348172, 10349739, 10351200, 10354191, 10355983, 10357042, 10358728, 10364408, 10366780, 10392381, 10392484, 10392512, 10395335, 10397367, 10397469, 10400172, 10399411, 10400000, 10400014, 10401397, 10405983, 10407305, 10407381, 10407446, 10408774, 10409108, 10410089, 10411393, 10410982, 10412397, 10413857, 10416839, 10417044, 10421018, 10422255, 10422391, 10423399, 10422677, 10425474, 10426456, 10426457, 10426482, 10426726, 10426835, 10426955, 10427552, 10427650, 10429300, 10430266, 10430370, 10433542, 10435621, 10437683, 10438574, 10443341, 10453539, 10454455, 10454522, 10458240, 10459366, 10459592, 10460944, 10461484, 10462854, 10463486, 10464039, 10464046, 10464438, 10464712, 10465793, 10466738, 10466859, 10466943, 10467946, 10468273, 10468478, 10469925, 10472038, 10475880, 10478204, 10479632, 10481176, 10482219, 10482538, 10485784, 10494614, 10494838, 10500114, 10505458, 10508731, 10509485, 10510253, 10512594, 10513706, 10566443, 10515305, 10520531, 10520677, 10521494, 10521505, 10523127, 10524704, 10524980, 10525342, 10525645, 10525900, 10531903, 10533246, 10533383, 10536563, 10536583, 10536782, 10537291, 10538413, 10542030, 10542479, 10542814, 10542837, 10544853, 10546359, 10546526, 10557174, 10561494, 10563449, 10575001, 10579567, 10582881, 10584775, 10592131, 10593534, 10595534, 10606523, 10609043, 10609817, 10609848, 10610188, 10617272, 10618234, 10619296, 10620991, 10621858, 10628119, 10630892, 10638716, 10639126, 10639441, 10654185, 10659508, 10683893, 10692972, 10712417, 10712420, 10714226, 10716860, 10721106, 10721516, 10722596, 10722634, 10722916, 10724901, 10726429, 10726714, 10726989, 10730311, 10730525, 10730598, 10731005, 10731466, 10731539, 10731085, 10732585, 10732661Other Model Years: 10336469, 10343431, 10413664, 10420136, 10432247, 10432571, 10444772, 10459104, 10460799, 10461493, 10468185, 10468432, 10468785, 10473168, 10475908, 10479916, 10508633, 10511410, 10512807, 10513128, 10522964, 10523076, 10524890, 10525892, 10532177, 10534812, 10541904, 10541906, 10565470, 10595975, 10597246, 10604781, 10606865, 10608533, 10610546, 10610811, 10611167, 10614809, 10616375,
