NHTSA ID Number: 10166014
Manufacturer Communication Number: KLG_AL - DCM - L
TSB/Document Date: 2019-10-15
Summary
Area Letter: Multiple Models and Model Years Safety Connect System ? Vehicle Location Inaccurate. The Data Communication Module (DCM) in the subject vehicles are equipped with software to identify the location of the vehicle using the Global Positioning System (GPS) to support features of the Safety Connect system. Due to incorrect programming in the DCM software, after November 2nd, 2019, the GPS coordinates for this system will be calculated incorrectly. This will cause the system to use incorrect vehicle coordinates if one of the system?s features is activated.
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TSB/Document ID: KLG_AL - DCM - L
Replacement Service Bulletin Number:
MFR Communication Date: 2019-09-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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INTEROFFICE MEMORANDUM
Original Publication Date: September 12, 2019
To:
All Lexus
Area General Managers / Assistant General Managers
From:
Chuck Yaeger
Senior Manager, Lexus Fixed Operations
LIMITED SERVICE CAMPAIGN KLG (Remedy Notice)
Multiple Models and Model Years
Safety Connect System – Vehicle Location Inaccurate
Specific information for Area support is provided below.
Condition
The Data Communication Module (DCM) in the subject vehicles are equipped with software to identify the location of the vehicle using the
Global Positioning System (GPS) to support features of the Safety Connect system. Due to incorrect programming in the DCM software,
after November 2nd, 2019, the GPS coordinates for this system will be calculated incorrectly. This will cause the system to use incorrect
vehicle coordinates if one of the system’s features is activated.
Dealer Notification
The attached dealer letter will be sent to all Lexus dealers on September 12, 2019
DCM-12 or DCM-13/14 Re-Recalibration
During DCM-12 or DCM-13/14 recalibration, it is possible for the recalibration to fail. In the case of recalibration failure, the technician can
re-recalibrate the DCM to the updated software type by performing some additional steps. Re-recalibration will require removing the DCM
from the vehicle and the utilization of a specially provided cable to directly connect to the DCM. If a technician experiences a calibration
failure, the Technical Instructions inform the technician to contact their Field Technical Specialist (FTS) for assistance. The FTS will be able to
provide the following opcode for dealerships that experience this condition. This opcode should only be provided in cases where dealerships
need to perform a re-recalibration on the DCM.
KLG005
Confirm Calibration ID, Recalibrate DCM Type 12 or 13/14, calibration
failure, then Re-Recalibrate DCM Due to Initial Recalibration Fail
Please reference the attached Dealer Letter for additional details.
Please review this notification with your staff to assure that all relevant personnel have been briefed regarding this subject.
Thank you for your cooperation.
© 2019 Lexus, A Division of Toyota Motor Sales, USA
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