You can expect to pay anywhere from $20 to $150 or more. A cheaper aftermarket switch might be around $20-$50, while a genuine GM part from a dealership will likely be significantly more expensive. Labor costs for professional installation would add to that price as well.
To get a precise price, I recommend:
* Checking online retailers: Sites like Amazon, eBay, AutoZone, Advance Auto Parts, and RockAuto will give you a range of prices and options. Be sure to specify the year, make, and model of your Grand Am to ensure compatibility.
* Contacting local auto parts stores: Call your local auto parts stores and give them your vehicle's information. They can give you a price quote.
* Visiting a Pontiac dealership (if one is still near you): This will be the most expensive option, but will guarantee a genuine GM part.
Remember to always double-check the part number to make sure it's the correct one for your specific Grand Am.