Buick Lucerne Owners Manual

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Horn
Press near or on the horn symbols on the steering wheel pad to sound the horn. ...

Manual Mode
Driver Shift Control (DSC) Notice: Driving with the engine at a high rpm without upshifting while using Driver Shift Control (DSC), could damage the vehicle. Always upshift when necessary while u ...

Reporting Safety Defects to theUnited States Government
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA), in ...