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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 336 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B191A or B191B: Heated Seat Module >> DTC Descriptors

DTC Descriptors

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
DTC B191A 39

Front Heated Seat Module

DTC B191B 39

Rear Heated Seat Module

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