Conditions for Running the DTC: P2161

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The transmission is not performing garage shifting.
The transmission is not in Reverse Inhibit state.
The transmission is not in PARK or NEUTRAL.
The engine speed is 1000 RPM or greater.
No crank sensor and P2160 DTCs.