Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
B36B2 02
The folding top control module has detected a short to ground in the rear compartment lid position sensor Supply reference voltage circuit.
B36B2 04
The folding top control module has detected an open circuit rear compartment lid position sensor Supply reference voltage circuit.