PRNDL Fault Clearing Procedure: Notes

With the scan tool, erase Transmission DTCs.
Cycle the ignition off, then start the vehicle.
Firmly apply the brakes and shift into Overdrive.
NOTE:
Vehicle must remain in Overdrive for at least 3.0 seconds.
With the brakes firmly applied, shift slowly through all gears (PRNDL) as least three times, pausing momentarily in each gear.
NOTE:
If all the PRNDL lights box individually then the error was cleared.
Shift into park and turn the ignition off to the lock position.
With the ignition on, engine not running, using the scan tool, read DTCs.