DTC B2965: Key-In-Ignition Fault: Description
WARNING: This page is about a different car, the 1998 Oldsmobile Cutlass and 1998 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
DTC B2965 will set when key-in-ignition input is not active and Ignition 0 is active for 20 seconds. DTC B2965 can be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.