08-043-26

Flash: Anti-Lock Brakes (ABS) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Code (DTC):
• **C151D-00 - Tire Pressure Sensor Location Undetermined.**
• U0121-00 - Lost Communication With Anti-lock Brake System (ABS) Control Module.
• U1110 - Lost Vehicle Speed Message.
• U120C - Lost Brake Booster Signal. Customers may also comment on one or more of the following:
• **The Service TPM System message may display on the cluster after a tire rotation.** NOTE: The vehicle will not automatically relearn tire locations and the process will have to be manually performed by a dealer technician.
• Electronic Parking Brake (EPB) is not responding and not allowing the driver to release EPB.** NOTE: This takes place when the vehicle in on standstill, the driver stays in the car for more than 10 minutes and if the driver presses the Electric Parking Brake (EPB) button. The Electronic Stability Control (ESC) module wakes up in silent mode and if another wake up request occurs (i.e. pedal press, door, ajar etc.) during this time the module locks up in no communication mode and other modules sets DTC against ESC module. ESC won't be operational and vehicle won't be able to shift out of park
• Antilock Brake System (ABS) light is on in the Instrument Panel Cluster (IPC). This bulletin involves reprogramming the ABS module with the latest available software.