Conditions for Clearing the MIL/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.
North America and Korea
DTCs P0237 and P0238 are Type A DTCs.
All other Regions
DTCs P0237 and P0238 are Type C DTCs.