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Bad Buick DTCs? Follow These Steps For a Quick Fix

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This bulletin applies to 2017-2018 Buick Cascada vehicles. The MIL may be on and DTC P0366 and P0014 may be set.

This condition may be caused by a sporadically unlocked exhaust cam phaser that can oscillate during engine start, falsely setting the DTCs.

If the vehicle has this concern, reprogram the ECM software with the latest software available.

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