45A / NHTSA 23V-302 PTU Input Spline – 2016-2017 Jeep Cherokee

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April 27, 2023 NHTSA CAMPAIGN NUMBER: 23V302000

Loss of Drive Power from Damaged PTU

A loss of drive power can increase the risk of a crash. A loss of park function can cause an unintended vehicle rollaway which can increase the risk of a crash or injury.

 

NHTSA Campaign Number: 23V302

Manufacturer Chrysler (FCA US, LLC)

Components POWER TRAIN

Potential Number of Units Affected 25,980

 

Summary

Chrysler (FCA US, LLC) is recalling certain 2016-2017 Jeep Cherokee vehicles. The power transfer unit (PTU) may become damaged and disengage the transmission and differential, resulting in a loss of drive power or loss of park function.

 

Remedy

FCA US LLC will notify owners, and dealers will perform a software update, free of charge. Owners may contact FCA USA LLC customer service at 1-800-853-1403. FCA’s number for this recall is 45A. This recall expands previous recall number 20V-343.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Vehicle has a Recall

 


New Safety Recall Advanced Communication – 45A

FCA US LLC (FCA US) has announced a safety recall on certain 2016 and 2017 Model Year (KL) Jeep® Cherokee vehicles equipped with Power Transfer Unit (PTU) (sales code DK4).

 

REASON FOR THIS SAFETY RECALL

Some of the above vehicles may have been built with a PTU which allows relative movement between the differential input splines and the transmission output shaft. This condition may result in the teeth of the input splines wearing off, which may eventually cause a loss of engagement between the transmission and the differential inside the PTU. If this occurs, torque cannot be transferred between the front wheels and the transmission, which will result in a loss of motive power while the vehicle is in motion in two-wheel drive mode and a loss of the PARK function while stationary. A loss of motive power or PARK function can cause a vehicle crash without prior warning and/or injury to others outside the vehicle.

 

SERVICE ACTION

FCA US will conduct a voluntary safety recall to reprogram the affected vehicles with software for the Drive Train Control Module (DTCM) and the Electric Park Brake (EPB) that will maintain vehicle propulsion by engaging rear wheel drive function and prevent rolling in the PARK selection by activating the electric park brake if a failed input spline occurs. The remedy for this condition is not currently available. Dealers will be notified of the launch of this safety recall by way of established communication methods. This recall is estimated to launch in 2nd Quarter of 2023.

 


SAFETY RECALL NORTH AMERICA

PTU Input Spline

Reference: 45A / NHTSA 23V-302

Remedy available for

2016-2017 Cherokee

 

Revision Edition Detail
0 May 2023 Initial Version.

 

SYMPTOM DESCRIPTION

The PTU on about 25,980 of the above vehicles may have been built to allow relative movement between the differential input splines and the transmission output shaft. This condition may result in the teeth of the input splines wearing off, which may eventually cause a loss of engagement between the transmission and the differential inside the PTU. If this occurs, torque cannot be transferred between the front wheels and the transmission, which will result in a loss of motive power while the vehicle is in motion and a loss of the PARK function while stationary. A loss of motive power or PARK function can cause a vehicle crash without prior warning and/or injury to others outside the vehicle.

 

SCOPE

This recall applies only to the above vehicles equipped with a Power Transfer Unit (PTU) (sales code DK4).

NOTE: Some vehicles above may have been identified as not involved in this recall and therefore have been excluded from this recall.

IMPORTANT:  Some of the involved vehicles may be in dealer new vehicle inventory.  Federal law requires you to complete this recall service on these vehicles before retail delivery.  Dealers should also consider this requirement to apply to used vehicle inventory and should perform this recall on vehicles in for service.  Involved vehicles can be determined by using the VIP inquiry process.

 

REPAIR TO BE PERFORMED

Reprogram the affected vehicles with software for the Drive Train Control Module (DTCM) and the Electric Park Brake (EPB) that will maintain vehicle propulsion by engaging rear wheel drive function and prevent rolling in the PARK selection by activating the electric park brake if a failed input spline occurs.

 

PARTS INFORMATION

No parts are required to perform this service procedure.

 

PARTS RETURN

No parts return required for this campaign.

 

SPECIAL TOOLS

Number Description Picture
NPN wiTECH MicroPod II / MDP
NPN Laptop Computer
NPN wiTECH Software

 

OWNER NOTIFICATION / SERVICE SCHEDULING

All involved vehicle owners known to FCA are being notified of the service requirement by first class mail.  They are requested to schedule appointments for this service with their dealers.  A generic copy of the owner letter is attached.

 

SERVICE PROCEDURE

A.  Drive Train Control Module (DTCM)

NOTE: The wiTECH scan tool must be used to perform this recall.  If the reprogramming flash for the DTCM or EPB is aborted or interrupted, repeat the procedure.

 

  1. Open the hood. Install a battery charger and verify that the charging rate provides 13.0 to 13.5 volts.  Do not allow the charger to time out during the flash process.  Set the battery charger timer (if so equipped) to continuous charge.

 

NOTE:  Use an accurate stand-alone voltmeter.  The battery charger volt meter may not be sufficiently accurate.  Voltages outside of the specified range will cause an unsuccessful flash.  If voltage reading is too high, apply an electrical load by activating the park or headlamps and/or HVAC blower motor to lower the voltage.

 

  1. Connect the wiTECH micro pod II to the vehicle data link connector.

 

  1. Place the ignition in the “RUN”

 

  1. Open the wiTECH 2.0 website.

 

  1. Enter your “User id” and “Password” and your “Dealer Code”, then select “Sign In” at the bottom of the screen. Click “Accept”.

 

  1. From the “Vehicle Selection” screen, select the vehicle to be updated.

 

  1. From the “Action Items” screen, select the “Topology” tab.

 

NOTE: The DTCM must be at the latest software calibration level after completing this recall.

 

  1. From the “Topology” tab, select the “DTCM” module icon.

 

  1. From the “Flash” tab, compare the “Current Electronic Control Unit (ECU) Part Number” with the “New ECU Part Number” listed.
  • If the “Current ECU part Number” is the same as the “New Part Number”, proceed to Step B. Electric Park Brake.
  • If the “Current ECU part Number” is NOT the same as the “New Part Number”, continue with Step 10.

 

  1. From the DTCM tab, select the DTCM flash part number. Read the flash special instructions page.  Select “OK” to continue.

 

  1. From the flash ECU agreement page, agree to terms by checking the box.

 

  1. Select “Flash ECU” and then follow the wiTECH screen instructions to complete the flash.

 

  1. Confirm the software is at the latest available calibration level.

 

  1. Click “View DTCs”, select “Clear All DTCs”, click “Continue” and then click “Close”.

 

B.  Electric Park Brake (EPB) 

  1. Go back one page to the Topology screen.

 

NOTE: The EPB must be at the latest software calibration level after completing this recall.

 

  1. From the “Topology” tab, select the “EPB” module icon.

 

  1. From the “Flash” tab, compare the “Current Electronic Control Unit (ECU) Part Number” with the “New ECU Part Number” listed.
  • If the “Current ECU part Number” is the same as the “New Part Number”, proceed to Step 9.
  • If the “Current ECU part Number” is NOT the same as the “New Part Number”, continue with Step 4.

 

  1. From the EPB tab, select the EPB flash part number. Read the flash special instructions page.  Select “OK” to continue.

 

  1. From the flash ECU agreement page, agree to terms by checking the box.

 

  1. Select “Flash ECU” and then follow the wiTECH screen instructions to complete the flash.

 

  1. Confirm the software is at the latest available calibration level.

 

  1. Click “View DTCs”, select “Clear All DTCs”, click “Continue” and then click “Close”.

 

  1. Place the ignition in the “OFF” position and then remove the wiTECH micro pod II device from the vehicle.

 

  1. Remove the battery charger from the vehicle.

 

  1. Close the vehicle hood.

 


Chronology :

  • On March 7, 2023, the FCA US LLC (“FCA US”) Technical Safety and Regulatory Compliance (“TSRC”) organization opened an investigation into 2016-2017 MY Jeep Cherokee vehicles for potential PTU failures that experience a loss of motive power (“LOMP”) and/or park function.
  • During March 2023, FCA US TSRC conducted an analysis of LOMP and/or loss of park function patterns associated with two-speed PTU replacements.
  • As of April 20, 2023, FCA US is aware of two customer assistance records, 17 warranty claims, zero field reports, and six other service records potentially related to this issue for all markets with dates of receipt ranging from January 13, 2017, through August 7, 2022.
  • As of April 20, 2023, FCA US is not aware of any accidents or injuries potentially related to this issue for all markets.
  • On April 20, 2023, FCA US determined, through the Vehicle Regulations Committee, to conduct a voluntary safety recall of the affected vehicles.

 


Safety Recall W47 – PTU Input Spline – 2014-2017 Jeep Cherokee

 

Safety Recall W47 – PTU Input Spline – 2014-2017 Jeep Cherokee

 


2 Affected Products

Vehicle

MAKE MODEL YEAR
JEEP CHEROKEE 2016-2017

 


4 Associated Documents

Remedy Instructions and TSB

RCRIT-23V302-7066.pdf 156.743KB

RCRIT-23V302-7066

 


Recall Acknowledgement

RCAK-23V302-6652.pdf 690.126KB

RCAK-23V302-6652

 


Defect Notice 573 Report

RCLRPT-23V302-2068.PDF 214.989KB

RCLRPT-23V302-2068

 


Manufacturer Notices(to Dealers,etc) – NSRAC Initial re New Safety Recall Advanced Communication – 45A

RCMN-23V302-1864.pdf 50.707KB

RCMN-23V302-1864

 


Latest Recalls Documents

For the Latest and Most Recent Recalls Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V302&docType=RCL

 


 

Reprogramming

Chrysler J2534 Application Overview

 

DRB III Emulator

Flash Availability - J2534/Pass Thru Device

Vehicle to Diagnostic Tool Reference Chart

 

Chrysler Recommended J2534 Devices

For Chrysler recommended J2534 device, see below table.

J2534 Device Firmware Version
CTC Vehicle Box * 1.9
UCAN 2 1.0
Blue Streak -2534 Global Programmer 2.10
Actia I+ME Passthru 2.07

* Chrysler recommends the CTC Vehicle Box Device for Chrysler SCI ECU reprogramming. SCI reprogramming is used on most PCMs and TCMs prior to the introduction of CAN bus vehicles which began in 2004 (Durango).

 

Compatible J2534 Devices

45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool
45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool
45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light CarDAQ-Plus
45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light CarDAQ-M
45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light VSI J2534 ECU Reprogrammer
45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light

Bosch Automotive Tools MTECH2 Mastertech II J2534 VCI with Wired/Wireless Capability for OEM Reprogramming and Diagnostics on GM, Ford, FCA, Nissan/Infiniti, Honda/Acura, and Toyota/Lexus Vehicles

45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light

RAP2 OEM J2534 Remote Reprogramming Tool

45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light

BOSCH Automotive Tools MTECH2 Mastertech II J2534 VCI

45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light

Autel MaxiFlash VCI Vehicle Communication Interface J2534 PassThru ECU Programming Device Bluetooth Connection Internet Update Support CAN FD, 4 CAN Channels, DoIP, D-PDU Works with PC or Autel MS909

45A / NHTSA 23V-302 PTU Input Spline - 2016-2017 Jeep Cherokee | small light

GODIAG J2534

 


Click on the link below to:

Download J2534 Application

(Install the wiTECH 2.0 J2534 Application on your computer)

Download the Setup Utility

(Configure your microPod/MDP device)

Launch wiTECH 2.0

(Once subscription and users are assigned to a tool please follow this link to access wiTECH)

https://www.mopartsp.com/support

 


Chrysler J2534 Manual

wiTECH Software

www.techauthority.com

 


 

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Last update on 2024-02-17 / Affiliate links / Images from Amazon Product Advertising API

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