S2208000146

Case Number: S2208000146
Release Date:
August 2022
Symptom/Vehicle Issue: Flashing Tire Pressure Lamp After Radio Frequency Hub (RFHUB)
Replacement
Customer Complaint/Technician Observation: Owner may have had outside repairs
and/or the service technician has recently replaced the existing RFHUB for a no start concern or
other service diagnostic condition. The cluster is now flashing the Tire Pressure Module (TPM) lamp.
Technician observed the vehicle did have a flashing TPM lamp and that the RFHUB was recently
replaced.
Discussion: Verify the vehicle was built prior to 6/7/2021 and does not have sales code CXG
(Lock on Sync Tire Pressure Sensor). Vehicles built prior to 6/7/2021 without sales code CXG will
have a separate active TPM module mounted on the frame.
Note: (Scan report below showing an active TPM module, built before 6/7/2021).
These vehicles have different tire pressure sensor that reports directly to the TPM module.
If the vehicle, in this example, had an original a RFHUB 68488345XX, and this RFHUB gets
replaced with the newer style RFHUB 56029937XX you will experience a flashing TPM lamp.
Vehicles built after 6/7/2021 are equipped with a RFHUB that uses newer style tire pressure sensors
sales code CXG (Lock on Sync tire pressure sensors) and a different TPM module.
With the newer RFHUB already programmed to the vehicle, add sales code CXG, perform a
vehicle restore configuration and then replace the original tire pressure sensors with sensors used on
vehicles built after 6/7/2021 (Example: The newer tire pressure sensors that works with newer
RFHUB, sensor P/N# 68339096AB. See parts listing for applicable (TPM P/N 68582106aa required
with sales code CXG on vehicle used after 6/7/2021).
Verification: Test drive the vehicle to validate the sensor locations are learned and the TPM lamp
is off.
Example: Active separate TPM module:
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
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Version 4.3 10/29/2020