Check your owner’s manual to find the key code for your vehicle. If you don’t have your owner’s manual, you can usually find the key code on a metal tag attached to your key ring or on a sticker inside your glove compartment.
Present your vehicle registration, driver’s license, and key code to a locksmith or automotive dealership. They will use this information to cut a new key for your vehicle.
Alternatively, you can take your vehicle to a dealership and have them make a key for you. They will have the necessary equipment and software to program the key to work with your vehicle's security system.
It’s important to note that making a new key for a 1998 Oldsmobile Intrigue may require special equipment and programming, so it’s best to have it done by a professional locksmith or dealership to ensure proper functionality.