2007 Chrysler 300
Key Replacement - Save vs Dealer in San Diego

Q: How do I know you are not a scam locksmith?

Scam operations follow a pattern. A low number gets quoted on the phone -- sometimes under two hundred dollars -- and by the time the tech is done, separate charges for cutting, programming, and "emergency fees" have stacked the bill past eight hundred. Owners of Chrysler 300s have posted about exactly this on forums: fob barely works, emergency blade never cut properly, and no recourse because the company is a shell.

Q: Will the replacement key work exactly like my original?

Yes. Once programmed, the replacement remote head key communicates with your 2007 Chrysler 300's immobilizer and body electronics the same way the factory key does. Engine starts, all remote buttons function, and the transponder is recognized every time you turn the key. We test everything on site before leaving -- every button, engine start confirmed, trunk release confirmed.

Q: My 2007 Chrysler 300 cranks but won't start, then starts fine an hour later. Could this be a key or immobilizer problem?

That intermittent pattern -- cranks, no start, then works later on its own -- is a known behavior on this generation when the immobilizer module starts having communication issues, not necessarily the key itself. Owners have reported that cycling the ignition a few times or even disconnecting the battery briefly brings the car back, which points away from the transponder in the key and toward the module or the wiring feeding it.

Q: I bought a replacement fob for my 2007 Chrysler 300 online. Can I program it myself, or do I need a locksmith?

You need someone with the right equipment. The 2007 Chrysler 300 remote head key requires diagnostic programming through the OBD port to enroll the transponder into the immobilizer. There is no ignition-turn sequence or button combo that adds a new key on this vehicle.

All Keys Lost? | No Problem

Available

Remote Head Key

All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

CA BSIS LICENSE LCO#6792

All Keys Lost? Easy No Tow Required New Key On-Site

Fast Response15-25

min arrival

200+reviews

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Rapid response 2007 Chrysler 300 key details from EZ Car Keyz Del Mar CA

All Keys Lost?

We make new keys from scratch - no existing key needed

No Tow Required

We come to wherever the car is sitting

Emergency Service

Available 7 days a week, 6 AM to 11:30 PM

619 Special

10% OFFCODE:EZ-619-2026

🔥 Lost your key? Save 10% today 🔥

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2007 Chrysler 300
Key Options

Dealer-grade key for a fair, honest price

Remote Head Key

All Chrysler 300 Keys Lost? Compare Options

Lost all your keys? Compare your options

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

EZ Car Keyz wins 5 out of 6

All keys lost is no problem for us

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2007 Chrysler 300 Remote Head Key Replacement - Fast, Affordable & Professional

A college student home in Carmel Valley for winter break called the dealer on a Monday morning. His 2007 Chrysler 300 needed a replacement key -- he'd lost his only one -- and they told him Wednesday at the earliest, possibly later if they had to order the part. He was home for ten days. Burning two of them waiting on a dealership wasn't going to work.

He found me online and called a couple hours after the dealer call. I was at his parents' place in Del Mar that same afternoon.

The 300 is an all-keys-lost situation when you're down to zero. That means the old key data gets wiped from the immobilizer memory and a fresh key gets enrolled. I ran the programming sequence through the diagnostic port, cut the blade to his vehicle, and went through the full checklist: engine start, lock, unlock, trunk release, every button on the fob confirmed working before I packed up.

Start to finish, Monday afternoon. He didn't lose two days of his break. The dealer comparison came up naturally when he mentioned the quote they'd given him over the phone -- he saved a good chunk, and he didn't have to arrange a tow or sit in a waiting room.

Save vs the Dealer on Your Chrysler 300 Key

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

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BSIS Licensed

LCO#6792

CA Bureau of Security & Investigative Services

NASTF Certified

National Automotive Service Task Force

Fully Insured

Liability & vehicle damage coverage

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Also serving: Carmel Valley · Del Mar Heights · Del Mar Village · Torrey Pines

Chrysler 300 Rapid Response, Done Right

Rapid response in the field

2007 Chrysler 300

Remote Head Key | Rescue Key

Priority ETA

Rapid Arrival

Available Today

Del Mar

Help Is Close

619 Area

Same-Day Keys (619) 876-1271

Chrysler Owners Rescued and Reviewed

From lost keys to happy customers

J

Javier A.

Oct 2026

★★★★★

“Fast and very affordable they work late night was able to come quickly and make a new smart key for my Chrysler 200 much appreciated Marco”

Google Review

D

Damon C.

Aug 2026

★★★★★

“I texted Marco at 8am with a picture of my key that needed duplicated and he got right back to me. Great price and immediate service. I would highly recommend !”

Google Review

E

Edelson E.

Dec 2025

★★★★★

“I just got locked out of my vehicle also lost the key for my toyota camry and Marco came and made a key for me. He was nice and professional. Great guy and a great key.”

Google Review

Quick response locksmith review for 2007 Chrysler 300 key - EZ Car Keyz Del Mar CA

★ 5.0 out of 5 - Based on Over 200 five-star Google reviews

Best Price (619) 876-1271

Chrysler 300 Mobile Service FAQ

Real costs, no dealer surprises

Are you licensed and insured to work on Chrysler vehicles?▼

Yes. EZ Car Keyz holds a California Bureau of Security and Investigative Services locksmith license (LCO#6792) and carries full insurance. For the 2007 Chrysler 300 specifically, key programming involves the vehicle's immobilizer system, so you want someone who has both the credentials and the right equipment. Not every locksmith advertising Chrysler work actually has the tools to handle immobilizer enrollment on these.