Ram 4500 Investigations (2017)

2 ODI actions on file.

• RQRQ25003OPENOpened 7/3/2025
  Post Recall Remedy Brake Transmission Shift Interlock (BTSI) Failure
  POWER TRAIN:AUTOMATIC TRANSMISSION

  The Office of Defects Investigation (ODI) has received 14 Vehicle Owner Questionnaire (VOQ) reports and 6 EWR Death & Injury (D&I) reports describing post recall remedy failures of the brake transmission shift interlock (BTSI) system in certain Model Year (MY) 2013-2018 RAM pickup trucks.The subject vehicle models include 1500, 2500, 3500, 4500, and 5500 trucks equipped with a column mounted shift lever.The failures of the BTSI described in the VOQs occurred on vehicles that had all previously been repaired under recall 17V-821 or 18V-100.Both recalls address a potential condition which can cause the BTSI locking pin to become stuck allowing the transmission to be shifted out of Park without depressing the brake pedal and/or without having a key in the ignition.Shifting the transmission out of Park when not having the brake pedal depressed can result in a vehicle rollaway. ODI is opening this Recall Query (RQ) to review the effectiveness of the 17V-821 and 18V-100 recall remedies, understand the root cause of additional vehicle rollaway incidents, and identify any other possible root cause that may affect the performance of the BTSI system. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

• PEPE19017CLOSEDOpened 12/12/2019
  Front Driveshaft Failure
  POWER TRAIN

  On December 12, 2019, NHTSA's Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 19-017 after receiving three Vehicle Owner Questionnaire (VOQ) reports alleging failures of the front driveshaft and/or transfer case, resulting in conditions of 1) a loss of engine power, 2) loss of steering assist, 3) loss of foundation brakes, 4) unintended air bag deployment and 5) engine/cab fires from combustible fluids striking hot exhaust components. The VOQs involved model year (MY) 2015 through 2017 RAM 4500 and 5500 vehicles. ODI received information from the vehicle manufacturer [Fiat Chrysler Automobiles (FCA)] via information request letters dated February 28, 2020, and April 21,2020. Supplemental information was received on March 17, 2021. A review of the responsive manufacturer information, and related meetings and presentations, showed that the transfer case failures in 97.5% of the claims did not disable the vehicle. Since analysis showed that a failed driveshaft could result in catastrophic damage to the transfer case as well as other safety risks (i.e. steering/brake failures etc.), ODI shifted the investigation to focus only on the front driveshaft failures. The double cardan universal joint design requires maintenance lubrication within every 8000 miles. Despite an under-hood maintenance reminder label and professional servicing at both dealers and independent repair facilities, the driveshafts were often found to be unlubricated due to lack of awareness, difficulty of the operation or the lack of the special tools needed to perform the work. To increase the maintenance lubrication rates, in the summer of 2021, FCA launched a communications campaign, circulating awareness bulletins, training information, special tool options and instructional videos through more than a dozen channels covering both dealer and independent repair facilities. Additionally, in the fall of 2021, FCA mailed a VIN-specific letter to each registered owner reminding them of the maintenance needs, and also sent a special grease gun adapter to every FCA US dealer and fleet operator with an FCA US dealer code. Since January 2022,NHTSA has not received a complaint of front driveshaft failure due to lack of lubrication that can lead to failure conditions such as loss of engine power, loss of steering assist, loss of foundation brakes, unintended air bag deployment and engine/cab fires. This drop in complaints, the communications campaign launched by the manufacturer, and the absence of reports from the manufacturer, support the closing of this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.