For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Express - AWD 🢒 Transmission 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Second Gear Only - D4

Second Gear Only - D4 for Chevrolet Express - AWD 2009

Checks	Cause
Check the PCM for current DTCs.