Programming a G37 key (Intelligent Key) is generally not a DIY task and usually requires a dealer or a qualified automotive locksmith with specialized equipment. If you already have one working key, the process is typically quicker when handled by a professional; if you have no working keys, expect dealership-level service and documentation.
Understanding the G37 key and how it works
The Infiniti G37 uses an Intelligent Key system with a transponder inside the key fob and a push-button start. The system recognizes authorized keys and allows keyless entry and engine starting. Reprogramming or adding a new key is a security feature managed by the car’s immobilizer and requires coding to the vehicle’s VIN. This is not the same as simply pairing a generic remote, and it usually requires specialized tools.
Can you program a G37 key yourself?
In most cases, self-programming is not available to owners without access to the proper diagnostic tools. Infiniti’s security system is designed to prevent unauthorized key clones, so most programming tasks are performed by dealers or licensed automotive locksmiths. If you have at least one working key, a professional can often add a new key more efficiently than a complete key replacement with no existing keys.
If you have two working keys
Having two working keys simplifies the process and may be a prerequisite for certain programming procedures. The steps below outline the typical path a dealer or locksmith follows to add a third key when two keys already exist:
- Provide proof of ownership and the vehicle’s VIN to the dealer or locksmith.
- Have the technician connect the car to a diagnostic tool capable of programming Infiniti Intelligent Keys.
- Key a new Intelligent Key to the vehicle by coding it to the car’s immobilizer and synchronizing it with the existing keys.
- Test all functions of the new key, including lock/unlock, trunk release, and push-button start.
- Record the new key’s identification in the vehicle’s system and provide you with any warranty or return-to-service notes.
Professional programming sessions typically take 30–60 minutes and can vary by year, model, and the service provider’s equipment. Costs depend on location and whether the service is performed at a dealership or by an independent locksmith.
If you have no working keys
Without any functional keys, you will almost certainly need dealer service or a mobile locksmith with authorized access to Infiniti’s programming tools. The process generally involves:
- Presenting proof of ownership and vehicle documentation (VIN, title, registration).
- Providing the Vehicle Identification Number (VIN) and possibly a Vehicle Security Code or PIN if required by the provider.
- Using specialized equipment to code a new Intelligent Key to the car’s immobilizer and verify startup functionality.
- Testing the new key and confirming all features work as intended.
- Receiving a bill that covers programming and the new key blank, plus any applicable service charges.
Note that the process can be more time-consuming and expensive when no keys are on hand, and some vehicles may require a trip to the dealership for full immobilizer reprogramming.
Costs and time to expect
Prices for programming Infiniti Intelligent Keys vary widely by region, model year, and whether the service is performed at a dealership or by an independent locksmith. Typical ranges you might encounter are:
- With at least one existing key: approximately $100–$300 for programming plus the cost of the new key blade or fob.
- With no existing keys: approximately $200–$600 or more, depending on the provider and whether immobilizer reprogramming is required.
Times can range from 30 minutes to over an hour, depending on the complexity and how quickly the provider can access the immobilizer coding system.
What to bring to your appointment
To streamline the process, have these handy:
- Proof of ownership (registration, title) and a valid photo ID.
- Vehicle VIN and, if available, the current keys you have (even if they don’t work).
- Payment method for the programming and key costs.
Summary
For Infiniti G37 owners, programming a new Intelligent Key is typically a dealer- or locksmith-driven process due to security features in the immobilizer system. If you have one or two working keys, professionals can add a new key more efficiently, usually within an hour, but you should expect to pay a service fee plus the cost of the new key. If you have no keys, plan for dealership assistance and be prepared for documentation checks. Always verify the latest procedures and pricing with your chosen provider before proceeding.