How do you program the remote key on a 2003 Chevy Impala?

You can't program a new remote key for a 2003 Chevy Impala yourself using a simple procedure like some newer cars. The 2003 Impala requires a specialized scan tool capable of communicating with the car's security system to program keys. This is because the key's transponder needs to be registered with the car's computer.

You will need to take your car to one of the following:

* A qualified locksmith: Locksmiths specializing in automotive keys often have the necessary equipment to program keys for this vehicle. This is usually the most affordable option.

* A Chevrolet dealership: Dealerships have the correct tools and trained technicians. This is often the most expensive option, but they are guaranteed to have the correct programming procedures.

* An independent auto repair shop: Some independent shops may have the necessary equipment. Check their services before going there.

Important Considerations:

* Key type: You'll need to determine the type of key you have (standard key, key fob with remote start, etc.). This will impact the programming process and cost.

* Proof of ownership: Be prepared to provide proof of ownership of the vehicle when having the key programmed.

Trying to program the key yourself without the proper equipment is impossible and could potentially damage your car's system. It's always best to seek professional assistance for key programming on a vehicle this old.