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2017 RAM 5500

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 15 of 21 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Power Train. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes, Hydraulic. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports2 fire reports0 injury reports

Electrical System complaints

1 reports
Clear category filter
85,000 miles · Aug 6, 2024
Electrical SystemEngine

The contact owns a 2017 Ram 5500. The contact stated that on several occasions while turned on the vehicle shut off and would not restart. The contact stated that the fuel fuse was replaced at the residence by an independent mechanic but the failure reoccurred. The vehicle was taken to a dealer where it was diagnosed that the TI…

Read full complaint

The contact owns a 2017 Ram 5500. The contact stated that on several occasions while turned on the vehicle shut off and would not restart. The contact stated that the fuel fuse was replaced at the residence by an independent mechanic but the failure reoccurred. The vehicle was taken to a dealer where it was diagnosed that the TIPM needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 85,000.

NHTSA ODI #11606760

Official recalls

7

24V896000 · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

Nov 27, 2024

Chrysler (FCA US, LLC) is recalling certain 2017-2018 Ram 2500 Pickup, Ram 3500 Pickup, 3500 Cab Chassis, 4500 and 5500 Cab Chassis vehicles. The hydraulic control unit (HCU) may fail, which can cause the anti-lock brake (ABS), electronic stability control (ESC), and traction control systems to fail.

Consequence & remedy

Consequence: A loss of anti-lock brakes, electronic stability control, or traction control can increase the risk of a crash.

Remedy: Dealers will replace the brake HCU, or replace the HCU motor, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed January 9, 2025. Some owner notification letters were mailed January 9, 2025. The remaining owner notification letters will be mailed at a future date, anticipated October 2026. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is C4B.

21V398000 · Wheels:lugs/nuts/bolts/studs

May 27, 2021

Chrysler (FCA US, LLC) is recalling certain 2012-2021 RAM 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles. Incorrect information in the Service and Owner's Manuals may cause the flanged lug nuts to be over-tightened, which could result in a broken wheel stud and possible wheel separation.

Consequence & remedy

Consequence: Wheel separation can cause a vehicle crash.

Remedy: Dealers will update the torque specification in the owner's manual and other published service documents. Dealers will also inspect the vehicle's wheel studs, replacing them if necessary, free of charge. Owner notification letters were mailed on November 30, 2021. Campaign Y36 owner notification letters were mailed on November 30, 2021. Campaign Y26 owner notification letters were mailed on December 1, 2021. Owners may contact FCA US customer service at 1-800-853-1403. FCA US's numbers for this recall are Y26 and Y36.

18V332000 · Electrical System:software; Electrical System:wiring; Vehicle Speed Control:cruise Control

May 17, 2018

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence & remedy

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

Additional source detail variants (3)

Electrical System:software

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

Vehicle Speed Control:cruise Control

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

Electrical System:wiring

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.

18V100000 · Power Train:automatic Transmission

Feb 8, 2018

Chrysler (FCA US LLC) is recalling certain 2017-2018 RAM 1500, 2500, 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles, all equipped with a column shifter. Pushing the brake pedal for prolonged periods when the vehicle is running and in PARK may cause the Brake Transmission Shift Interlock (BTSI) pin to stick in the open position. With the pin in the open position, the transmission can be shifted out of PARK into any gear without pushing the brake pedal or having the key in the ignition.

Consequence & remedy

Consequence: Being able to shift the transmission without pushing the brake pedal and/or without a key in the ignition can increase the risk of an unintended vehicle rollaway that may result in personal injury or a crash.

Remedy: Chrysler will notify owners and dealers will update the Body Control Module software. Dealers will also test the BTSI operation, replacing the solenoid as necessary. The recall began February 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U11.

17V824000 · Equipment

Dec 21, 2017

Chrysler (FCA US LLC) is recalling various Dodge, Chrysler, and RAM vehicles equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. A list of the affected trailer models is available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V824-0103.pdf. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf

Consequence & remedy

Consequence: If the fire extinguisher does not function properly, it can increase the risk of injury in the event of a fire.

Remedy: Chrysler will notify owners instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began February 14, 2018. Owners may contact Chrysler customer service at 1-800-853-1403 or Kidde customer service service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information. Chrysler's number for this recall is T82.

17V821000 · Power Train:automatic Transmission:lever And Linkage:column Shift

Dec 20, 2017

Chrysler (FCA US LLC) is recalling certain 2016-2017 Ram 3500 Cab Chassis with a Gross Vehicle Weight Rating (GVWR) of less than 10,000 lbs, 2011-2017 Ram 3500, 4500 and 5500 Cab Chassis vehicles, 2009-2017 Ram 1500 and 2010-2017 Ram 2500 and 3500 pickup trucks, all equipped with a column shifter. Pushing the brake pedal for prolonged periods when the vehicle is running and in PARK may cause the Brake Transmission Shift Interlock (BTSI) pin to stick in the open position. With the pin in the open position, the transmission can be shifted out of PARK into any gear without pushing the brake pedal or having the key in the ignition.

Consequence & remedy

Consequence: Being able to shift the transmission without pushing the brake pedal and/or without a key in the ignition can increase the risk of an unintended vehicle rollaway that may result in personal injury or a crash.

Remedy: Chrysler will notify owners, and dealers will update the vehicle software, inspect the BTSI, and, as necessary, replace it, free of charge. The recall began February 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T79.

17V562000 · Engine And Engine Cooling:engine:diesel

Sep 12, 2017

Chrysler (FCA US LLC) is recalling certain 2013-2017 RAM 2500, 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles, equipped with Cummins 6.7L Turbo Diesel engines that have Concentric-brand water pumps without a vent hole. These water pumps may leak coolant.

Consequence & remedy

Consequence: The leaking water pump can increase the risk of an engine compartment fire.

Remedy: Chrysler will notify owners, and dealers will replace the water pumps, free of charge. The recall began February 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T51.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

2

RQ25003 · Post Recall Remedy Brake Transmission Shift Interlock (btsi) Failure

Opened Jul 3, 2025 · No close date supplied

Status: open (inferred from source dates) · Power Train:automatic Transmission; Power Train:automatic Transmission:gear Position Indication (prndl)

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.

Additional source detail variants (2)

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.

Power Train:automatic Transmission:gear Position Indication (prndl)

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.

PE19017 · Front Driveshaft Failure

Opened Dec 12, 2019 · Closed Oct 22, 2023

Status: closed (inferred from source dates) · Power Train; Power Train:driveline:driveshaft; Power Train:transfer Case (4-WHEEL Drive)

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.

Additional source detail variants (3)

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.

Power Train:driveline:driveshaft

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.

Power Train:transfer Case (4-WHEEL Drive)

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.