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Ram Preliminary Evaluation PE22012: Loss of brake performance
2017 Ram 3500
Loss of brake performance
Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip:Control Unit/Module
Service Brakes, Hydraulic:Power Assist:Electric:Control Module
Service Brakes, Hydraulic:Power Assist:Electric:Control Module:Software
Service Brakes, Hydraulic:Power Assist:Hydraulic
- Summary
- The Office of Defects Investigation (ODI) has received 134 reports from consumers alleging an intermittent or permanent loss of braking performance in certain 2017-2018 Ram 2500-3500 pickup trucks. The alleged failures continue to occur at a steady rate across both models, at all speeds, with limited detectability. The Anti-lock Braking System (ABS) module works in conjunction with the Hydraulic Control Unit (HCU), an electromechanical device that controls hydraulic pressure to the individual wheel brake assemblies, to manage braking forces during emergency stops. Several reports indicate that the replacement of both ABS module and HCU appear to correct the alleged failures.A preliminary evaluation has been opened to assess the scope, frequency, and potential safety consequences of the alleged defect in the subject vehicle.The reports cited below can be reviewed at NHTSA.gov using the following ID numbers:11143741,11182778,11231734,11252781,11265590,11270151,11300182,11319987,11340919,11374563,11397817,11406173,11413739,11415782,11432564,11435001,11436114,11438212,11440095,11442271,11443163,11444665,11462321,11462815,11462882,11466475,11467867,11469939,11471094,11475503,11477295,11481774,11484707,11289725,11348968,11349187,11353806,11362290,11372637,11408095,11414945,11418837,11422709,11423103,11428358,11428361,11429751,11430234,11430977,11433635,11435359,11436827,11438026,11438130,11438197,11439168,11440188,11440367,11441638,11441949,11442147,11442419,11442813,11443050,11443749,11444052,11444254,11444928,11445371,11445644,11446070,11446463,11446699,11446775,11447621,11447654,11449249,11449479,11449528,11450872,11453424,11454537,11455117,11456555,11456963,11458044,11458781,11459418,11460432,11461108,11462539,11463962,11464183,11464289,11466048,11466186,11466504,11466541,11468241,11470127,11471858,11472027,11472391,11472394,11472411,11474322,11475061,11475120,11475939,11477458,11477816,11478107,11478676,11478800,11478901,11479145,11479535,11480000,11480148,11481390,11481819,11482034,11482484,11482937,11483094,11484776,11485239,11485376,11485459,11485621,11485692,11485985,11486278,11486416.
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