EERE ESE eT

From: Quality Compliance
Sent: Thursday, August 2, 2018 5:10 PM
Subject: UPDATE: Special Service Campaign JSD — Remedy Notice, Certain 2014 - 2017 MY

Toyota Corolla Vehicles, Certain 2017 MY Toyota Corolla iM Vehicles, Certain 2016 MY
Scion iM Vehicles, Continuously Variable Transaxle (CVT) Software Update (Internal)
Attachments: JSD_Region_Letter_Updated_Published_8.2.2018.pdf

Attached Region Letter has been updated.

« The descriptions for OpCodes JSD005, JSD006 JSD007, and JSD008 have
been updated

In our continuing efforts to ensure the best in customer satisfaction, Toyota is launching a Special Service
Campaign (SSC) on certain 2014 — 2017 MY Toyota Corolla vehicles, certain 2017 MY Toyota Corolla iM
vehicles, and certain 2016 MY Scion iM vehicles.

Background
Toyota previously announced Special Service Campaign JOD, which involved performing a software update to the

CVT control software to address the condition described below. Following the completion of the software update in
Special Service Campaign JOD, Toyota dealers received reports from some customers stating that the vehicle
experienced harsh shifting and/or abnormal engine RPM between shifts. These issues occurred close to the
completion date of the campaign and/or within relatively low mileage from the completion of the campaign remedy,
prompting Toyota to suspend Special Service Campaign JOD. Toyota has now identified the cause of these issues
and has developed a new remedy. Special Service Campaign JSD, which replaces Special Service Campaign JOD,
applies this new remedy. Owners of all vehicles previously involved in Special Service Campaign JOD, including

those who have previously completed Special Service Campaign JOD, are requested to visit an authorized Toyota

dealer to have Special Service Campaign JSD performed.

Condition

An Electronic Control Unit (ECU) in the subject vehicles has improper programming that could lead a component in
the Continuously Variable Transmission (CVT) to unnecessarily cycle and experience abnormal wear. If this
component becomes damaged, the Malfunction Indicator Lamp (MIL) may illuminate in the instrument cluster and
the vehicle could experience a reduction of speed. After reaching a pre-determined gear ratio, the vehicle can be
operated up to approximately 37 mph.

Remedy
Any authorized Toyota dealer will inspect the CVT control software and, if necessary, perform an update for that

software at NO CHARGE. After inspecting the software and, if necessary, performing the software update, the CVT
solenoid valve controlling the gear ratio in the CVT will be inspected* and, if necessary, the CVT valve body
assembly will be replaced at NO CHARGE. A portion of the CVT solenoid valve inspection process requires the
dealer technician to test drive the vehicle for a certain distance and at certain speeds.

In the unlikely event that the vehicle is exhibiting the condition (i.e., DTC P2820 is present) before receiving this
remedy, any authorized Toyota dealer will replace the CVT assembly at NO CHARGE.

NOTE: Toyota expects a majority of vehicles WILL NOT require CVT valve body assembly replacement. If parts are
not immediately available to replace the CVT valve body assembly on the customer's vehicle, the customer should
be offered a loaner vehicle until parts become available, if possible. Damage to the vehicle's transmission could
occur if the vehicle is driven with the updated software prior to replacing the valve body assembly.

*: Some vehicles may be exhibiting certain powertrain malfunctions unrelated to the condition covered by this
Special Service Campaign, that may interfere with the dealer's ability to perform the solenoid valve inspection.
These powertrain malfunctions MUST be diagnosed and repaired prior to performing this Special Service Campaign

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