Buick Repair Questions? Ask a Mechanic for Answers ASAP
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This will come up when an issue is found with the rear differential itself or electronics like the actuator.I have also seen under the passenger rear seat area on the outside under side of the vehicle there are 3 connections that plug in that can corrode and cause this as well.
What needs to be done here is to have the fault codes checked/read out to see what codes are set and from there those codes diagnosed to locate and repair this issue.Check the connections on the outside floor board under the drivers side rear seat area for any issues as well.
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