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2005 Infiniti Q45
Key Replacement - Save vs Dealer in San Diego

Fast Response | 15-25 Min Arrival

Available
2005 Infiniti Q45 Remote Head Key
Remote Head Key

Don't wait 3-5 business days at the dealership. EZ Car Keyz gets you back on the road fast. We arrive quickly and have your new key working before your coffee gets cold.

CA BSIS LICENSE LCO#6792
15-25 Min Arrival Key Done Fast No Waiting Days
Fast Response15-25
min arrival
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2005 Infiniti Q45 key replacement info - no tow needed - EZ Car Keyz La Mesa CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
2005 Infiniti Q45 key replacement info - no tow needed - EZ Car Keyz La Mesa CA
Key specialists
15-25 Min Arrival
Our mobile unit is dispatched immediately
Fixed pricing
No Appointment Needed
Walk-up service available 7 days a week
Fast mobile service
Quick Turnaround
Most keys completed in under 45 minutes on-site
619 Special
10% OFFCODE:EZ-619-2026

🔥 Same-day key and a discount 🔥

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2005 Infiniti Q45
Key Options

Dealer-grade key for a fair, honest price

Remote Head Key
Most popular Infiniti key typeMost Popular
2005 Infiniti Q45 Remote Head Key CWTWB1U751
FCC IDCWTWB1U751Part #H0561-3AA0BButtons4BatteryCR1616Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote Head Key
2005 Infiniti Q45 Remote Head Key CWTWB1U751
FCC IDCWTWB1U751Part #H0561-3AA0BButtons4BatteryCR1616Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Metal Key
2005 Infiniti Q45 Metal Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2005 Infiniti Q45 key fob cut and delivered to you in La Mesa CA
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Professional key, honest rate
2005 Infiniti Q45 key fob cut and delivered to you in La Mesa CA
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The 2005 Q45 uses a remote head key, meaning the transponder and the remote are built into the same unit. The CR1616 is a thin cell and it drains faster than owners expect, but a dead battery in the fob only kills the remote functions. The transponder side still needs to communicate with the immobilizer every time you crank the engine. If the battery goes fully dead and the key sits unused for a long stretch, some owners report the fob buttons coming back after a fresh CR1616 but the car still hesitating on start. That points to the transponder needing to be re-registered, not just a battery issue. Also worth knowing: Infiniti's key programming on this generation works by erasing all registered keys first, then re-learning them all in a single session. You can register multiple fobs, but every fob you want to keep has to be physically present during that one window. Bring all your keys to the appointment.
Related services: Ignition Repair · Smart Key

One Hour vs One Week

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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
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2005 Infiniti Q45 Remote Head Key Replacement - Fast, Affordable & Professional

Sunday morning, Grossmont Area in La Mesa, outside a yoga studio off the main stretch. The owner came out after teaching her first class of the day and her remote head key was completely dead. No lock, no unlock, nothing. Just a 2005 Infiniti Q45 sitting there not responding to anything she tried.

The Infiniti dealer was closed until Monday. She had a second class starting in two hours and a car she couldn't get into.

My number was the one that picked up.

I pulled into the studio lot about 40 minutes after she called. Tested the fob first. The CR1616 was completely shot, which explained the dead buttons. Swapped the battery, and the remote functions came back, but the engine was still hesitating on start. That told me the transponder registration had drifted after the battery went fully flat. This is a known behavior on this generation of Infiniti, where the immobilizer loses confidence in the key after prolonged communication dropout.

I pulled up the vehicle through the OBD port, cleared the key memory, and ran the re-registration sequence with her existing fob present. Tested lock, unlock, trunk release, and confirmed the engine started cleanly with no hesitation. Then walked the range across the parking lot to make sure everything was solid before I packed up.

She made it back inside with time to spare before her second class. The dealer would have had her waiting until Monday just to get an appointment, and then probably ordering parts on top of that. Same-day, on-site, done before noon.

Save vs the Dealer on Your Infiniti Q45 Key

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

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Also serving: Casa de Oro · Downtown La Mesa · Grossmont Area · La Mesa Village

Infiniti Q45 Rapid Response, Done Right

Rapid response in the field

2005 Infiniti Q45 key replaced in your driveway in La Mesa CA
Remote Head Key | Rapid On-Site Service
2005 Infiniti Q45 | San Diego
2005 Infiniti Q45 key replaced in your driveway in La Mesa CA
2005 Infiniti Q45 Remote Head Key
2005 Infiniti Q45
Remote Head Key | Done in Minutes
Estimated arrival time to La Mesa
Fast Dispatch
Rapid Arrival
Available Today
Service location La Mesa
La Mesa
Rapid Service Zone
619 Area
Same-Day Keys (619) 876-1271

Five Stars for Speed

Fast keys, happy customers

D
Diya M.
Jan 2025
★★★★★

“Fast, affordable, and a great price. Marco did an amazing job and made a key for our Nissan Kicks quickly and professionally. Everything worked perfectly.”

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Edelson E.
Oct 2025
★★★★★

“I got locked out of my vehicle and also lost my key. Marco came out, made a new key for my Toyota, and got me back on the road. He was professional, friendly, and clearly knows what he is doing.”

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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.”

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Locksmith came to me for 2005 Infiniti Q45 key - EZ Car Keyz La Mesa CA review
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5.0 out of 5 - Based on Over 100 five-star Google reviews
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Infiniti Q45 Mobile Service FAQ

Real costs, no dealer surprises

How long does a 2005 Infiniti Q45 key replacement take?
For an add-a-key job where you still have at least one working key, plan on 30 to 45 minutes on site. That covers cutting the blade to your vehicle, programming the transponder through the OBD port, and testing all four remote functions. All-keys-lost is a longer process. On this generation, the system requires PIN extraction and a full key memory reset before any new key can be registered. That brings total on-site time to roughly 60 to 90 minutes depending on how the vehicle responds to the reset sequence. Either way, it all happens at your location in the Grossmont Area. You are not dropping it off and waiting.
How fast can you get to me in La Mesa?
Can I get a replacement key made today, without going to the dealer?
I bought a replacement fob online. Can you just program it, or do I need a specific blank?
My key starts the car fine but the remote buttons stopped working. Is the transponder going bad?
Questions? Call (619) 876-1271

Infiniti Q45 Key Service Areas

Same-day dispatch across the region

📍San Diego County
San Diego County service area map
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San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
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