Where is blower motor Buick riviera?

The blower motor location on a Buick Riviera varies slightly depending on the model year. However, it's generally located behind the dashboard, on the passenger side. You'll likely need to remove parts of the dashboard to access it.

To pinpoint the exact location for *your* specific year and model Riviera, I highly recommend consulting a repair manual specific to your vehicle. A Haynes or Chilton manual would be a good place to start. You can also search online for diagrams or videos showing the blower motor replacement process for your exact Riviera model.