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Service bulletin 18-064-20

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10180271
Published by NHTSA2020-09-28
Manufacturer's number18-064-20
Manufacturer's date2020-08-22
NHTSA componentSTEERING; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs:P2610 - PCM Internal Engine Off Timer Performance. U1504 - Implausible Message Data Length Received From Steering Angle Sensor. U1424 - Implausible Engine Torque Signal Received DTC False Failure. P2097 - Downstream Fuel Trim System 1 Rich DTC Calibration Robustness Improvement. P2099 - Downstream Fuel Trim System 2 Rich DTC Calibration Robustness Improvement. U0402 - Implausible Data Received. B10EA - Blower Motor Control Circuit High. B10E9 - Blower Motor Control Circuit Low. P0456 - EVAP System Small Leak. In addition, the following software enhancements are available:Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes. Calibration update for a slight push in the vehicle that may be felt when coasting down during a 8th to 7th gear downshift. Vehicle shudder at stop/start with A/C on.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Steering, Transmission and driveline, Automatic transmission, Transmission control module

Trouble codes named

B10E9, B10EA, P0456, P2097, P2099, P2610, U0402, U1424, U1504

Vehicles listed
JEEP CHEROKEE2016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V3020002023-04-27. POWER TRAIN:AUTOMATIC TRANSMISSION
20V3430002020-06-11. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
S23250000072024-01-08. Service bulletin. MIL/check engine lamp comes on after performing U90 recall PCM software update.
S23250000072023-10-30. Service bulletin. MIL/check engine lamp comes on after performing U90 recall PCM software update.
90037832022-10-31. Service bulletin. Shifter - Automatic Transmission If a 2015 - 18MY KL ONLY is brought in with a ?Service Shifter? message on the cluster and/or the following DTCs are present indicating loss of communication with the shifter: U0103, U0103-87. Prior to beginning any repair, please call John Zbranchik at 248-576-0756 or Pablo Flores at 248-576-3972. If no reply contact Dil Weerasinha at 248-944-5967 or Jay Nagle 248-576-5657. If you are unable to contact any of the above, and all the DTCs related to loss of comm are STORED, first perform a vehicle scan with a wiTECH tool or similar and email the log to john.zbranchik@fcagroup.com and pablo.flores1@fcagroup.com. Ensure all stored DTCs in the vehicle are recorded in the log. Use the tool to clear all codes and ensure the ?Service Shifter? message does not return. If this is the first occurrence of this issue on this vehicle, do NOT replace the shifter at this time. If any DTCs related to loss of comm with the shifter are ACTIVE, a full bus log is highly desired. Please contact a regional tech representative to acquire this log. After the log is acquired, or if this is not feasible, check for loose/bent pins, spread terminals on both the male pin cavity in the shifter and the female connector from the body harness take out and all grounds. If no issues are found, replace the shifter and return it to the Quality Engineering Center (QEC).
21031172022-10-17. Service bulletin. This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The following software enhancement is also included:Improve shift quality.
745952022-10-17. Service bulletin. Warranty Bulletin D-21-07 (X89) Power Transfer Unit - 2014-2017 Jeep Cherokee (KL)
W842022-09-26. Service bulletin. Customer Satisfaction Notification W84 Powertrain Software Update
21001162022-08-22. Service bulletin. Transmission Diagnostic And Shift Enhancements.
18014162022-07-05. Service bulletin. Powertrain Diagnostic and System Improvements.
1801416 REV A2022-07-05. Service bulletin. Powertrain Diagnostic and System Improvements.
18002162022-07-05. Service bulletin. This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest