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2023 Chrysler 300
Key Replacement - Save vs Dealer in Ventura County

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Available
2023 Chrysler 300 Smart Key
Smart Key

Not all locksmiths are created equal. EZ Car Keyz is BBB A+ rated, fully licensed and insured, and trusted by thousands of customers across the area. Your vehicle is in good hands.

CA BSIS LICENSE LCO#6792
Certified Pros Insured Service Proven Record
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Professional 2023 Chrysler 300 locksmith quote from EZ Car Keyz Ventura CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Professional 2023 Chrysler 300 locksmith quote from EZ Car Keyz Ventura CA
Key specialists
BSIS Licensed
Licensed by the California Bureau of Security
Fixed pricing
NASTF Certified
National Automotive Service Task Force approved
Fast mobile service
1,000+ Reviews
Five-star rated on Google, Yelp, and BBB A+
805 Special
10% OFFCODE:EZ-805-2026

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2023 Chrysler 300
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Chrysler key typeMost Popular
2023 Chrysler 300 Smart Key M3M-40821302
FCC IDM3M-40821302Part #68155687Buttons5BatteryCR2032Frequency433 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2023 Chrysler 300 Smart Key M3N-40821302
FCC IDM3N-40821302Part #68155686ABButtons4BatteryCR2032Frequency433 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Professional 2023 Chrysler 300 key programming by EZ Car Keyz Ventura CA
Skip the Dealer Markup
Professional key, honest rate
Professional 2023 Chrysler 300 key programming by EZ Car Keyz Ventura CA
🔧 PRO TIP
The 2023 Chrysler 300 sits behind a secure gateway module on the OBD port. Any key programming tool has to authenticate through that gateway before it can even talk to the immobilizer. That authentication step adds a few minutes to the job before a single key gets registered. If a tech skips mentioning it, they either don't know it's there or they're using a workaround that may not fully complete the job. Also worth knowing: the fob takes a CR2032, and a weak one can mimic a programming failure or cause intermittent no-start behavior before it dies completely. Swap the battery first if you're troubleshooting range or detection issues. Fresh battery, proper gateway auth, then diagnose.
Related services: Ignition Repair · Smart Key

Chrysler Key Credentials Side by Side

Who has the better track record?

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
BSIS licensed with OEM quality guaranteed
Book Service (805) 790-8162

2023 Chrysler 300 Smart Key Replacement - Fast, Affordable & Professional

I got a call from a guy over in the College neighborhood of Ventura. He'd been storing his 2023 Chrysler 300 while he was out of state for a few months, and when he came back to it, the fob was acting dead. No door response, no start. Just a key-not-detected warning on the dash every time he tried.

He found me on YouTube before he ever needed a locksmith. Watched a Chrysler fob job, saw the tools, saw the process, and saved the number. When it finally happened to him, he already knew what to expect. That part always makes the job easier.

I got to the storage lot with the car sitting under a shade structure, battery tender still plugged in. First thing I did was crack open the fob. The CR2032 inside wasn't totally dead but it was reading low enough to cause problems. Swapped it out on the spot.

That alone didn't fix it. The fob was pairing intermittently, then dropping. The vehicle wasn't holding the signal reliably. Based on what I was seeing, the fob itself needed to be re-registered to the system. That's where the gateway authentication comes in on these newer 300s. Took a few minutes to get through that step, then the programming ran clean.

Three starts. Walked both doors. Tested every button on the fob. Everything came back solid.

He mentioned what the dealer had quoted him for a replacement fob plus the programming visit. I won't put a number to it, but he made it clear I saved him a good chunk. More importantly, he wasn't waiting three days for a dealer appointment in a storage lot.

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 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
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Also serving: Casitas Springs · College · Downtown Ventura · East Ventura

Chrysler 300 Rapid Response, Done Right

Rapid response in the field

Certified auto locksmith servicing 2023 Chrysler 300 in Ventura CA
Smart Key | Rapid On-Site Service
2023 Chrysler 300 | Ventura County
Certified auto locksmith servicing 2023 Chrysler 300 in Ventura CA
2023 Chrysler 300 Smart Key
2023 Chrysler 300
Smart Key | Pro Grade Service
Estimated arrival time to Ventura
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Rapid Arrival
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Service location Ventura
Ventura
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Proven by 1,000+ Chrysler Customers

Proven by reviews, backed by licenses

M
Miston
Dec 2025
★★★★★

“My ignition would not turn in La Jolla and I thought I needed a tow. EZ Car Keyz repaired the ignition on the spot and also made a spare key for safety. The technician worked carefully and confidently.”

Google Review
R
Rick R.
Apr 2021
★★★★★

“Niv showed up, did his thing, and just like that I had two new keys for a fraction of what the dealership quoted. I have zero reservations recommending him to anyone who needs car keys replaced.”

Google Review
f
frankborja25
Dec 2019
★★★★★

“We had one broken key for our Honda Civic and one working key for our Lexus. Tim came out and cut three remote car keys at a great price. All keys worked perfectly. Professional, courteous, and highly recommended.”

Google Review
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Certified locksmith review for 2023 Chrysler 300 service by EZ Car Keyz Ventura CA
“Real savings, real reviews.”
Certified locksmith review for 2023 Chrysler 300 service by EZ Car Keyz Ventura CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Chrysler 300 Mobile Service FAQ

Real costs, no dealer surprises

My fob shell is cracked or broken. Can you fix it without reprogramming everything?
In most cases, yes. If the internal electronics are still intact, the circuit board and battery can be transferred into a new shell without touching the programming. The immobilizer is paired to the electronics, not the plastic housing, so a clean shell swap doesn't require re-registration. That said, I always verify the fob is responding correctly after any disassembly, because a cracked shell sometimes means the board took some stress too. If the internals are damaged, a full cut and program is the path. Either way, both options are done on site.
What exactly is a smart key and how is it different from a regular key?
My 2023 Chrysler 300 is showing a key-not-detected warning. Where do I start?
I bought a replacement fob online for my 2023 Chrysler 300. Can I program it myself?
Does adding a second fob erase my existing working key?
Questions? Call (805) 790-8162

Chrysler 300 Key Service Areas

Verified and rated across the county

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
Certified 2023 Chrysler 300 locksmith coverage in Ventura County CA
Certified 2023 Chrysler 300 locksmith coverage in Ventura County CA
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Guaranteed 2023 Chrysler 300 key service by EZ Car Keyz Ventura CA
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