A Chrysler 300 key replacement typically runs from about $60 to $650, depending on the key type and who does the work. Basic blade keys with a transponder are the cheapest option, while proximity or smart keys with remote functions cost the most. The exact price varies by model year and whether you go through a dealership or a locksmith, and whether programming is required.
What determines the price
Several factors drive the cost of replacing a Chrysler 300 key. The key type (blade-only, transponder, remote fob, or proximity smart key), whether immobilizer programming is required, and the service channel (dealer vs. independent locksmith) are the main variables that shape the total.
Key type and programming
The basic category of key you need—blade-only with transponder, a remote fob, or a proximity smart key—significantly influences price. Keys that require immobilizer programming add a separate programming fee, and smart keys often require specialized equipment.
Below are typical price ranges you can expect for each key type, with approximate totals that include necessary programming when applicable.
- Blade-only key with transponder (no remote): the least expensive option.
- Remote key fob (with lock/unlock and possibly panic) but no proximity features.
- Remote + transponder with immobilizer (standard recent-model keys) including basic remote functions.
- Proximity/smart key (Keyless Go) with remote and push-button start, the most feature-rich option.
In general, proximity/smart keys carry the highest price due to advanced hardware and programming requirements, while blade-only keys are the cheapest. The exact costs depend on year, model, and the service channel you choose.
Estimated price ranges by service channel
The price you pay also depends on where you replace the key. Dealerships tend to be more expensive, while independent automotive locksmiths can be cheaper, though availability of programming devices matters for certain keys. The ranges below reflect typical totals for recent Chrysler 300 models, including programming when needed.
- Blade-only transponder key:
- Locksmith: roughly $110–$220 total
- Dealership: roughly $225–$375 total
- Remote key fob with transponder (no proximity):
- Locksmith: roughly $150–$280 total
- Dealership: roughly $225–$475 total
- Proximity/smart key (with remote and immobilizer):
- Locksmith: roughly $325–$575 total
- Dealership: roughly $425–$800 total
Prices vary by year, geographic location, and current market conditions. Always request a written quote and confirm whether programming is included in the price.
What you’ll need to replace your Chrysler 300 key
To get a replacement key promptly, you’ll typically need to provide proof of ownership and key-specific details. Being prepared can reduce delays and extra trips to the dealer or locksmith.
- Vehicle Identification Number (VIN) and your Chrysler 300’s model year
- Proof of ownership (registration, title, or lease/finance documents)
- Government-issued photo ID
- Any existing keys you have and, if available, key codes or packaging from current keys
Note: Some keys require a special code or a visit to the dealership to verify ownership. If you’ve lost all keys, expect a longer process and potentially higher costs due to immobilizer programming and roadside or dealer assistance requirements.
Tips to save and what to expect on the day
To keep costs reasonable and avoid surprises, compare multiple quotes, consider a reputable locksmith with automotive programming capabilities, and confirm that programming is included in the quoted price. Bring your ID and ownership documents, and ask about any additional fees such as diagnostic or after-hours charges.
Summary
Replacing a Chrysler 300 key typically costs between $60 and $650, with blade-only keys at the low end and proximity/smart keys at the high end. Dealerships generally charge more than independent locksmiths, especially for smart keys that require programming. Prepare proof of ownership, VIN, and any existing key information, and obtain written quotes before proceeding to minimize delays and ensure you get the appropriate key for your model and year.


