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2012 Chrysler 300
Key Replacement - Save vs Dealer in San Diego

Professional Keys | Honest Pricing

Available
2012 Chrysler 300 Smart Key
Smart Key

Save 40-60% compared to dealership prices. Our certified technicians come to your home, office, or roadside with all the equipment needed to cut and program your key on the spot.

CA BSIS LICENSE LCO#6792
Skip the Dealer Cost No Dealer Markup Fair Fixed Price
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
Stranded without a 2012 Chrysler 300 key? EZ Car Keyz Coronado CA can help
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
Stranded without a 2012 Chrysler 300 key? EZ Car Keyz Coronado CA can help
Key specialists
Save 40-60%
Same OEM-quality key, fraction of the dealer price
Fixed pricing
Fixed Pricing
The quote on the phone is what you pay. Period.
Fast mobile service
Free Mobile Service
No trip fees, no towing costs - service included
619 Special
10% OFFCODE:EZ-619-2026

🔥 Your key for less, right now 🔥

Applies to any key replacement service
REDEEM (619) 876-1271

2012 Chrysler 300
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Chrysler key typeMost Popular
2012 Chrysler 300 Smart Key M3N-40821302
FCC IDM3N-40821302Part #5026676AHButtons5BatteryCR2032Frequency433 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2012 Chrysler 300 Smart Key M3N-40821302
FCC IDM3N-40821302Part #68155686ABButtons4BatteryCR2032Frequency433 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Emergency Key
2012 Chrysler 300 Emergency Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Metal Key
2012 Chrysler 300 Metal Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Key
2012 Chrysler 300 Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Emergency 2012 Chrysler 300 key fob made from scratch by EZ Car Keyz Coronado CA
Skip the Dealer Markup
Professional key, honest rate
Emergency 2012 Chrysler 300 key fob made from scratch by EZ Car Keyz Coronado CA
🔧 PRO TIP
The 2012 Chrysler 300 runs a proximity smart key setup with push-button start. The fob takes a CR2032 and has five buttons. No secure gateway requirement on this generation, so all-keys-lost and add-a-key jobs are handled through the diagnostic port with PIN extraction from the immobilizer module. The immobilizer lives in the SKIM, and the PIN has to be pulled before any key programming can happen. If the battery dies completely in the fob, the car has a backup: hold the dead fob directly against the start button and push. The system can read the fob passively at close range even with a dead battery. Useful trick to know before calling anyone.
Related services: Ignition Repair · Smart Key

Real Savings, Same Quality

Side by side - our price vs dealer markup

EZ Car Keyz
EZ Car Keyz
Dealership
Average Cost
✓ $$
✕ $$$$
Location
✓ We come to you
✕ You drive there
Wait Time
✓ 20-45 min
✕ 2-5 days
Same-Day
✓ Yes
✕ Rarely
All Keys Lost
✓ No problem
✕ Tow required
OEM Quality
✓ Yes
✓ Yes
EZ Car Keyz wins 5 out of 6
Same key, fraction of the dealer price
Book Service (619) 876-1271

2012 Chrysler 300 Smart Key Replacement - Fast, Affordable & Professional

I got a call from The Cays in Coronado late on a weeknight. The woman on the other end had borrowed a neighbor's phone. Her purse had been grabbed off a restaurant patio, wallet, phone, and car keys all gone together. Her 2012 Chrysler 300 was sitting in a nearby lot and she had no way to get into it or start it.

She had already called the dealer. They told her roommate the fob would need to be ordered and the car towed in, and that the whole job would stretch across several business days. The estimate was not small. The dealer also flagged that the stolen fob could still open the doors until the key memory was wiped, which was the right call to flag but not something they could handle that same night.

I drove out to Coronado. All-keys-lost is a different job than adding a spare to an existing working key. When a working key is present, the car already trusts it and you are just adding to the list. All-keys-lost means clearing the entire key memory first so the stolen fob is dead to the vehicle, then programming fresh from scratch. I pulled the PIN from the immobilizer module through the diagnostic port, cleared the old key data, and programmed two new fobs. Then I cut the emergency blade in each one and tested every function, doors, trunk, start.

Her roommate pulled up just as I was finishing the second key. Both fobs worked. The stolen one was erased from the system and could no longer start the engine, though it could still physically turn a door lock cylinder. She understood the distinction and was comfortable with it.

The dealer option would have meant a tow, a multi-day wait, and a bill that was a fraction of what they quoted, in my favor. She drove home that night with two working keys.

Save vs the Dealer on Your Chrysler 300 Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

Get Pricing (619) 876-1271 Text Us
BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: The Cays · Coronado Shores · Coronado Village · Ferry Landing

Chrysler 300 Rapid Response, Done Right

Rapid response in the field

All keys lost service for 2012 Chrysler 300 by EZ Car Keyz Coronado CA
Smart Key | Rapid On-Site Service
2012 Chrysler 300 | San Diego
All keys lost service for 2012 Chrysler 300 by EZ Car Keyz Coronado CA
2012 Chrysler 300 Smart Key
2012 Chrysler 300
Smart Key | Programmed for Less
Estimated arrival time to Coronado
Quick & Affordable
Rapid Arrival
Available Today
Service location Coronado
Coronado
Best Rate Here
619 Area
Same-Day Keys (619) 876-1271

What Fair Chrysler Pricing Sounds Like

Happy customers who saved hundreds

T
Tommy M.
Dec 2023
★★★★★

“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”

Yelp Review
A
Alexx C.
Dec 2025
★★★★★

“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”

Google Review
M
Mark F.
Feb 2024
★★★★★

“Needed a spare car key made and chose EZ Car Keyz based on their reviews. The reviews were right. They gave me the best price, responded quickly to all my questions, came to my workplace, cut the keys on site, and finished fast.”

Yelp Review
Watch real savings, real jobs62KFollowers
Locked out rescue review for 2012 Chrysler 300 - EZ Car Keyz Coronado CA
“Real savings, real reviews.”
Locked out rescue review for 2012 Chrysler 300 - EZ Car Keyz Coronado CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Chrysler 300 Mobile Service FAQ

Real costs, no dealer surprises

How much does a 2012 Chrysler 300 smart key replacement cost?
Call us for exact pricing, but the short version is it will be way less than the dealer. Chrysler dealers typically break the job into separate charges: the fob part, a cutting fee, and programming labor billed by the service department as its own line item. Those stack up fast. With EZ Car Keyz, one price covers everything: the fob, cutting the emergency blade, programming through the diagnostic port, and a full function test before I leave your location in Coronado. No tow required, no waiting days for a parts order.
Is going with a mobile locksmith actually cheaper than the Chrysler dealer for this?
Does your price include cutting the key blade and programming, or are those separate?
The key-not-detected warning keeps coming up even with a good battery. What is actually going on?
I bought a replacement fob online. Can you just program it, or is there more to it?
Questions? Call (619) 876-1271

Chrysler 300 Key Service Areas

Save vs the dealer in your neighborhood

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
need a key? 🔑
San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Lockout rescue coverage for 2012 Chrysler 300 in San Diego County CA
Emergency dispatch throughout San Diego County

Don’t see your city? Call us - we likely cover your area too!

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Chrysler 300 car key replacement video
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Chrysler 300 Key at a Fair Price

Same dealer-quality key at a fraction of the cost. Fixed pricing, no hidden charges.

Locked out of your 2012 Chrysler 300? Get help from EZ Car Keyz Coronado CA
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