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2021 Infiniti Q50
Key Replacement - Save vs Dealer in San Diego

Real Keys | Real Savings

Available
2021 Infiniti Q50 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
Budget Friendly Pro Equipment Fixed Quote
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
2021 Infiniti Q50 key replacement info - no tow needed - EZ Car Keyz Encinitas CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
2021 Infiniti Q50 key replacement info - no tow needed - EZ Car Keyz Encinitas CA
Key specialists
Best Price Guaranteed
Specialized in keys only - no overhead markups
Fixed pricing
No Hidden Fees
Key + cutting + programming all included in one price
Fast mobile service
We Come to You
Mobile service at no extra charge, 15-25 min
619 Special
10% OFFCODE:EZ-619-2026

🔥 Why overpay? Use this code 🔥

Covers all key & remote services
REDEEM (619) 876-1271

2021 Infiniti Q50
Key Options

Dealer-grade key for a fair, honest price

Push To Start
Most popular Infiniti key typeMost Popular
2021 Infiniti Q50 Smart Key KR5TXN7
FCC IDKR5TXN7Part #285E3-6HE6AButtons5BatteryCR2032Frequency434 MHzRemote StartYes
✓ In Stock · Programmed On-Site
Push To Start
2021 Infiniti Q50 Smart Key KR5TXN7
FCC IDKR5TXN7Part #285E3-6HE1AButtons4BatteryCR2032Frequency434 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Emergency Key
2021 Infiniti Q50 Emergency Key
FCC IDPart #H0564-9NR0AButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Metal Key
2021 Infiniti Q50 Metal Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2021 Infiniti Q50 key fob cut and delivered to you in Encinitas CA
Skip the Dealer Markup
Professional key, honest rate
2021 Infiniti Q50 key fob cut and delivered to you in Encinitas CA
🔧 PRO TIP
The 2021 Q50 smart key runs a newer-generation transponder chip compared to older Infiniti fobs, and programming requires a proper Infiniti-capable diagnostic tool through the OBD port. No ignition-turn sequence, no button trick on the dash. The fob takes a CR2032, and a weak one can mimic a dead fob: the push-button start gets inconsistent, the door handle sensors go flaky, and the dash throws a key-not-detected warning even when the fob is right in your hand. Before you assume the fob is toast, seat a fresh CR2032 and make sure the contacts inside the housing are clean and flat. If the warning clears and range comes back, you're done. If the car still won't see it after a good battery swap, the fob itself needs to be diagnosed, not just replaced. Also worth knowing: the emergency insert blade lives inside the fob. If the push-button side fails completely, that blade still gets you in the door manually so you're not locked out while you wait for a tech.
Related services: Ignition Repair · Smart Key

Infiniti Q50 OEM Quality Without the Markup

Same quality key, completely different price

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

2021 Infiniti Q50 Smart Key Replacement - Fast, Affordable & Professional

Down near Moonlight Beach in Encinitas, the parking situation after dark is quiet in a way that makes a dead smart key feel more urgent than it should. That's where I got the call.

An occupational therapist had wrapped a late session at an outpatient clinic and walked out to her 2021 Q50 around nine in the evening. Push-button start gave her nothing. No response from the door handles. The dash was showing a key-not-detected warning. She'd already tried holding the fob closer to the start button, which is the thing everyone tries. Still nothing.

She called the dealer first. Earliest available appointment was Thursday. It was Monday.

I was in the area and got to her within the hour. The fob battery was the first thing I checked. It was the original, and it measured low enough that it was borderline for powering the transponder reliably. Swapped in a fresh CR2032, reseated it properly, and the car still wouldn't recognize the fob. At that point the fob itself had failed, not just the battery.

I pulled out the programming tool, connected to the OBD port, and ran the Infiniti smart key registration procedure. New fob paired and confirmed. Then I walked every function with her watching: door handles, start button, remote lock and unlock, the emergency insert blade seated back in place. Everything came back clean.

She drove home about 35 minutes after I arrived. She didn't leave her Q50 in a dark lot overnight, didn't take a rideshare home, and didn't move patients around on her Thursday schedule. The dealer would have gotten to it eventually. I got to it that night.

Save vs the Dealer on Your Infiniti Q50 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
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: Cardiff-by-the-Sea · Downtown Encinitas · Leucadia · Moonlight Beach

Infiniti Q50 Rapid Response, Done Right

Rapid response in the field

2021 Infiniti Q50 key replaced in your driveway in Encinitas CA
Smart Key | Rapid On-Site Service
2021 Infiniti Q50 | San Diego
2021 Infiniti Q50 key replaced in your driveway in Encinitas CA
2021 Infiniti Q50 Smart Key
2021 Infiniti Q50
Smart Key | Programmed for Less
Estimated arrival time to Encinitas
Quick & Affordable
Rapid Arrival
Available Today
Service location Encinitas
Encinitas
Best Rate Here
619 Area
Same-Day Keys (619) 876-1271

Savings That Speak for Themselves

Five-star reviews from budget-smart drivers

I
Incognitomlo88
Jul 2025
★★★★★

“Tim was GREAT. I honestly swear he must have had my keys made before he even showed up. The entire process was insanely fast, from the initial phone call to having the keys in my hand. No one will beat the pricing, efficiency, or outstanding service.”

Google Review
K
Kim S.
Jul 2025
★★★★★

“This is the only locksmith anyone should ever call. I am still shocked at how fast he arrived and the price was hundreds less than other quotes I received. Honest, professional, and extremely efficient.”

Google Review
B
Bradley B.
May 2024
★★★★★

“Locked out on a weekend night and everyone else wanted $300+. EZ Car Keyz sent Roman late at night for much less. He worked for over an hour and did not give up until the door opened. They even made a new key on the spot.”

Yelp Review
Watch real savings, real jobs62KFollowers
Locksmith came to me for 2021 Infiniti Q50 key - EZ Car Keyz Encinitas CA review
“Real savings, real reviews.”
Locksmith came to me for 2021 Infiniti Q50 key - EZ Car Keyz Encinitas CA review
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Infiniti Q50 Mobile Service FAQ

Real costs, no dealer surprises

How long does a 2021 Infiniti Q50 smart key replacement take?
For a standard add-a-key job, plan on 30 to 45 minutes once I'm on site. That covers the OBD programming session, confirming the fob registers to the vehicle, and testing every function including the door handles and the emergency insert blade. All-keys-lost is a longer job. When there are no working keys left, the process involves PIN extraction and a full security re-registration, which adds time. That typically runs 60 to 90 minutes depending on how the vehicle security system responds during the reset sequence. Either way, it's done in one visit with no dealer appointment needed.
How fast can you get to Moonlight Beach in Encinitas?
Can I get a replacement smart key made today, same day?
I bought a replacement fob online. Can you just program it for me?
My Q50 shows a key warning on the dash but the fob battery is new. What else could cause that?
Questions? Call (619) 876-1271

Infiniti Q50 Key Service Areas

Great rates across the county

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
need a key? 🔑
San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Doorstep 2021 Infiniti Q50 locksmith coverage across San Diego County CA
Emergency dispatch throughout San Diego County

Free mobile service to all listed cities - no trip fees

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Infiniti Q50 car key replacement video
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Best Price on 2021 Infiniti Q50 Keys

Honest pricing from a licensed locksmith. No dealer markup, no trip fees, no nonsense.

Skip the dealer for 2021 Infiniti Q50 car key - EZ Car Keyz Encinitas CA
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