Investigations by Make
Ram Investigations
12 investigations. 6 open. 6 closed.
Investigation Records
Loss of Power Steering Assist
The Office of Defects Investigation (ODI) has received 19 Vehicle Owner Questionnaires (VOQs) alleging an intermittent or complete failure of the power steering assist system in certain Model Year (MY) 2022-2023 RAM ProMaster 1500, 2500, and 3500 vehicles. Failure of the power steering assist system can result in increased steering effort required to control the vehicle. An increase in steering effort can potentially lead to a loss of directional control of the vehicle. Several received reports allege failures of the steering rack with specific reports citing water intrusion into the electrical connectors of the electric power steering control module. ODI is opening this Preliminary Evaluation (PE) to assess the scope and root cause of potential defects in 2022-2023 RAM ProMaster steering systems. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Post Recall Remedy Brake Transmission Shift Interlock (BTSI) Failure
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 Op
Engine Stall With Intermittent Restart
The Office of Defects Investigation (ODI) has received 80 consumer complaints alleging an engine stall and loss of motive power on model year (MY) 2022 RAM 1500 pickup trucks and 2022 Jeep Wagoneer SUV vehicles. The particular engines in the subject vehicles are equipped with the Fiat Chrysler Automotive Group LLC (FCA) 5.7L Hemi eTorque system. The eTorque system is a mild hybrid system that lets the vehicle partially power itself. It accomplishes this by converting the captured energy from the braking system into electricity for the battery pack, which is then used to power a variety of electrical components. ETorque engines replace the alternator with a 48-volt battery-powered belt drive and a motor generator. The motor generator provides extra torque to the crankshaft during gear changes. Simultaneously, the motor generator uses the 48-volt battery pack to increase torque. Many of the complaints state that the vehicle's engine would shut off, often while travelling at slow speed, the vehicle would shift into park and apply the emergency brake. The vehicles were sometimes able to be restarted. In addition, complaints state that the malfunction warning light with the battery faul
2022 RAM Transmission Snap Ring Failure
The Office of Defect Investigations (ODI) has received 82 complaints alleging loss of motive power due to an internal transmission failure of the K1 snap ring in model year 2022 Ram 3500, 4500, and 5500 vehicles. Of these complaints, 16 describe a complete loss of motive power at speeds greater than 25 miles per hour, without the ability for the vehicle to resume normal operation. The subject vehicles can be up-fit as an ambulance and other emergency response vehicle or may be heavily loaded when used for towing. During the failure event, the snap ring becomes dislodged and forward gears 1-4 are no longer functional, potentially leaving the vehicle disabled in or near the roadway and/or negatively affect the emergency mission. ODI contacted the manufacturer, FCA US, LLC d/b/a Stellantis North America (FCA), and learned that technical service bulletin (TSB) TSB-21-002-23 is related to the alleged defect condition. Additionally, FCA has conducted dynamometer and field testing and has explained to ODI that during the event a warning message will display to the operator, and gear 5 and reverse will remain available. ODI is opening this Preliminary Evaluation (PE) to evaluate the severi
Intermittent/Comp Loss of Power Steering
The Office of Defects Investigation (ODI) has received 380 reports from consumers alleging an intermittent or complete loss of power steering assistance in certain 2013-2016 Ram 1500.The failure allegations occur at various speeds with limited detectability to the driver.On March 23, 2016 Fiat Chrysler Automotive (FCA) conducted recall campaign 16V-167 to address a possible contamination of the electrical power steering unit in certain model year 2015-2016 RAM 1500. The recall involved 440 vehicles and potentially resulted in loss of power steering assist.Consumer complaints indicate a similar failure may be occurring in vehicles that are out of scope of the recall.A Recall Query has been opened to determine if the scope of the recall mentioned above is correct or if another defect might exist that causes the alleged steering concerns.The reports cited above are listed in the attached document.
High pressure fuel pump failure
The Office of Defects Investigation (ODI) opened PE21-021 on October 14, 2021, to investigate incidents alleging a stall/loss of motive power as a result of high-pressure fuel pump failures in certain model year (MY) 2019-2020 Ram 2500, 3500, 4500, and 5500 heavy duty trucks equipped with 6.7L Cummins turbodiesel engines. During the investigation, ODI sought to determine if the related defect allegation was limited in scope to the recalled population. After review of information request response materials from both FCA and BMW, NHTSA determined that sufficient information to identify a comprehensive recall population could not be produced by FCA and BMW.During the investigation FCA filed recalls 22V406, 22E048, 22V767, and 22E087 which include vehicles not identified in the initial subject population by ODI. ODI also received recall 21V586, involving loss of motive power due to failed CP4 fuel pumps on certain BMW manufactured vehicles. An information request letter response received from BMW indicated that failed pumps on their vehicles were caused by an interaction between pump internal components and US market diesel fuel, leading to increased slip and eventual particle-generati
Loss of Brake Performance
The Office of Defects Investigation (ODI) opened this investigation on November 28, 2022, after receiving 134 reports from consumers alleging an intermittent or permanent loss of braking performance in certain 2017-2018 Ram 2500-3500 pickup trucks manufactured by Fiat Chrysler Automobiles (FCA). The alleged failures continued to occur at a steady rate across both models, at all speeds, with limited detectability. Consumers complained that the Anti-lock Braking System (ABS) warning light illuminated on their vehicles. The 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. During this investigation, ODI received over 2,500 consumer complaints concerning ABS or HCU warning lights that illuminated on the dashboards of their vehicles. Many consumers described also having trouble with cruise control, traction control, or electronic stability control. Of the complaints received, over 50% mentioned that the ABS or HCU warning light was intermittent in nature. ODI learned that in January 2021, FCA was aware of a p
High pressure fuel pump failure
The Office of Defects Investigation (ODI) opened PE21-021 on October 14, 2021 to investigate allegations of stall/loss of motive power as a result of high pressure fuel pump failures in certain model year (MY) 2019-2020 RAM 2500, 3500, 4500, and 5500 heavy duty trucks equipped with 6.7L Cummins turbodiesel engines.On November 12, 2021, FCA filed vehicle recall 21V-880 and equipment recall 21E-094 on the subject population, identifying an `internally failed component? of the high pressure fuel pump equipped on the 6.7L Cummins Turbodiesel engine that introduced debris into the fuel system potentially causing fuel starvation and consequently an unexpected loss of motive power. Discussions with FCA identified the high pressure fuel pump equipped on these vehicles as the Bosch-supplied CP4. On December 16, 2021, Bosch filed recall 21E-101, stating the pump failure was a consequence of a manufacturer application-specific fuel system design.NHTSA subsequently identified recall 21V-586 involving loss of motive power due to failed CP4 fuel pumps on certain BMW vehicles.As a result of having received multiple recalls related to a common component, from two separate vehicle manufacturers, NH
Steering loss due to linkage separation
On December 17, 2018, NHTSA's Office of Defects Investigation (ODI) opened Preliminary Evaluation PE18016 to investigate alleged drag link failures in the steering system on model year (MY) 2015 and 2016 Ram 2500 trucks manufactured by FCA US, LLC (FCA).  The drag link failures were found to be due to a safety defect with the steering linkage where the drag link adjustable connector (used to adjust the steering system), held in position by two opposing jam nuts, can loosen.  The loosening of this part can lead to wear and deterioration of the threads and eventual separation of the drag link, causing loss of steering. During the course of PE18016, it was found that two styles of drag link were used by FCA on the subject vehicles.  The subject vehicles consist of two drivetrain types including four-wheel drive (4WD) and two-wheel drive (2WD). The 4WD and 2WD trucks used drag links of differing design but both incorporated the same threaded connector. In January 2019 FCA issued recall 19V-021 to address a potential loss of steering control in certain Model Year (MY) 2013-2018 4WD RAM 2500 and 3500 trucks. The trucks using the 2WD style drag link were not included in the s
Steering loss due to linkage separation
On December 17, 2018, NHTSA's Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 18-016 to investigate the steering system on model year (MY) 2015 and 2016 Ram 2500 manufactured by FCA US, LLC (FCA). Four complaints were received alleging separation of the drag link, a steering linkage that connects between the right front steering knuckle and the pitman arm on the steering box output shaft. The failures were found to be at a threaded coupler within the drag link used for adjusting the length of the linkage during routine maintenance (alignment) of the steering system.Once separation occurs, turning the steering wheel has no effect, and there is no way for the driver to control or maintain the direction of the vehicle. During the investigation, it was determined that the same threaded coupler was used on two different drag link designs FCA manufactured on MY 2013-2018 Ram 2500 and 3500 pickups. FCA refers to the designs as either 4x2 or 4x4 style. In both designs, the coupler is prevented from turning on the drag link via two jam nuts that are tightened against the coupler. In its response to NHTSA's March 15, 2019, Information Request (IR) letter, FCA identif
Vehicle Rollaway
Basis â On December 16, 2016, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE16-014 to investigate 43 vehicle rollaway incidents with operators alleging they had shifted to Park and then exited the vehicle prior to the rollway incidents. These complaints involved multiple Fiat Chrysler Automobiles (FCA) model and model year vehicles that share a common electronic rotary shifter design.  Of the 43 consumer complaints, 25 complaints alleged crashes, and eight complaints alleged at least one injury. Subject Vehicles â When NHTSA opened the investigation, the subject vehicles were model year (MY) 2013-2016 Ram 1500 vehicles and MY 2014-2016 Dodge Durango vehicles equipped with a rotary electronic shifter. However, NHTSA expanded the scope of the investigation to include subsequent model years of the same model vehicles when the Agency learned that those new model year vehicles use the same rotary shifter.  Additionally, all subject vehicles manufactured by FCA are equipped with electronic rotary shifters supplied by Kostal Automotive. Reason for closing - During the course of this investigation, ODI did not find evidence that a vehicle-based design or
Software security vulnerability
On July 23, 2015, Fiat Chrysler Automobiles (FCA) launched Safety Recall 15V-461 to remedy security vulnerabilities in approximately 1.4 million model year (MY) 2013 through 2015 vehicles equipped with Uconnect head units (HU) 8.4A (RA3 radio) and 8.4AN (RA4 radio) manufactured by Harman International.On July 24, 2015, the Office of Defects Investigation (ODI) opened Recall Query, RQ 15-004, to investigate HU security vulnerabilities and remedy effectiveness in the recalled population and to determine whether similar units have been supplied for use in other FCA vehicles.In an August 11, 2015 letter, FCA submitted a second Part 573 safety recall report expanding the scope of the Uconnect RA4 model radio to include additional 7,810 MY 2015 Jeep Renegade vehicles manufactured from September 18, 2014 through June 25, 2015 (Recall 15V-508).Scope analysis indicated that Uconnect radios installed in FCA vehicles not included in recalls 15V-461 or 15V-508 (subject recalls) are not equipped with built-in cellular access or short range wireless communication features and, thus, do not contain the security vulnerabilities addressed by the subject recalls. SUBJECT VEHICLES: MY2014 through 201