TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

Summary
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0420 - Catalyst System Efficiency Below Threshold Bank 1. ? P0430 - Catalyst System Efficiency Below Threshold Bank 2. This bulletin involves reprogramming the PCM with the latest available software.

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Date Published
AUG 11, 2023
NHTSA TSB #
10243248
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