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.
B3623
Distance Sensing Cruise Control Follow Gap Set Circuit - Invalid Signal Received
B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581
Cruise Control Switch Circuit - Invalid Signal Received
P0589, P0592, P0593, P155B, P155C
Cruise Control Multifunction Switch 2 Circuit - Invalid Signal Received
P155A
Cruise Control Switch State Undetermined
P162C
Vehicle Speed Limiting/Warning Switch Circuit - Undetermined State