VENTURA COUNTY
6AM - 11:30PM • MOBILE SERVICE •
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Fast Response Locksmith

2004 Honda Civic
Key Replacement - Save vs Dealer in Ventura County

Stranded? | We Come to You Now

Available
2004 Honda Civic Transponder Key
Transponder 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
Stolen Key? Covered No Key Required Same-Day Fix
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
Verified locksmith 2004 Honda Civic key specs from EZ Car Keyz Thousand Oaks CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Verified locksmith 2004 Honda Civic key specs from EZ Car Keyz Thousand Oaks CA
Key specialists
All Keys Lost?
We make new keys from scratch - no existing key needed
Fixed pricing
No Tow Required
We come to wherever the car is sitting
Fast mobile service
Emergency Service
Available 7 days a week, 6 AM to 11:30 PM
805 Special
10% OFFCODE:EZ-805-2026

🔥 No key, no stress, plus savings 🔥

Lost your only key? Still valid
REDEEM (805) 790-8162

2004 Honda Civic
Key Options

Dealer-grade key for a fair, honest price

Transponder Key
Most popular Honda key typeMost Popular
2004 Honda Civic Transponder Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2004 Honda Civic Remote NHVWB1U523
FCC IDNHVWB1U523Part #72147-S5A-A01Buttons4BatteryCR2025Frequency433 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote
2004 Honda Civic Remote NHVWB1U523
FCC IDNHVWB1U523Part #08E61-S5D-1M001Buttons3BatteryCR2025Frequency433 MHzRemote StartNo
✓ In Stock · Programmed On-Site
MECHANICAL-KEY
2004 Honda Civic MECHANICAL-KEY
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Dealer grade 2004 Honda Civic key fob from EZ Car Keyz Thousand Oaks CA
Skip the Dealer Markup
Professional key, honest rate
Dealer grade 2004 Honda Civic key fob from EZ Car Keyz Thousand Oaks CA
🔧 PRO TIP
The 2004 Civic runs Honda's second-gen immobilizer system, sometimes called IMMO2 or Honda ISS (Immobilizer Sub System). The PCM and immobilizer unit talk through a rolling code handshake. Here's the thing most people miss: a failed transponder still lets the starter crank. The engine fires for about two seconds, then the immobilizer cuts fuel injection. That looks like a fuel pump or relay problem, but it's not. It's the T5 transponder chip not authenticating with the immobilizer control unit on the 38385-S5A-A01 board.
Related services: Ignition Repair · Smart Key

Locked Out? Compare the Solutions

All keys lost - two very different solutions

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
All keys lost is no problem for us
Book Service (805) 790-8162

2004 Honda Civic Transponder Key Replacement - Fast, Affordable & Professional

Over in the Conejo Oaks neighborhood in Thousand Oaks, a woman flagged me down in a parking lot on a Saturday. She volunteers at a nearby temple and told me she'd already been burned once. Another locksmith had cut her a new key for her 2004 Honda Civic, charged full price, and left when it didn't work. The car would crank, run for two seconds, then die. Classic failed immobilizer learn.

The other tech told her the module was bad. It wasn't.

What happened was simpler and more frustrating. Honda's IMMO2 system requires the full timed registration sequence to write key data permanently. If you rush it or skip the security countdown, the PCM accepts the transponder data temporarily but never commits it. The key looks learned. Then it isn't.

I used my HON66 Lishi to confirm the mechanical cut was correct, at least that part was fine. Then I connected through OBD-II with my IM608, cleared the ghost key data from the failed attempt, and ran a clean IMMO learn with the full security timer. Watched the T5 chip register, watched the PCM confirm the write.

Clean start. No two-second fuel cutoff. I showed her the confirmation screen so she could see the key was fully stored this time.

She'd already paid the first guy, and I couldn't fix that part. But I could make sure the car actually started when she turned the key.

Save vs the Dealer on Your Honda Civic Key

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

Get Pricing (805) 790-8162 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: Botanic Garden · Casa Conejo · Conejo Oaks · Dos Vientos

Honda Civic Rapid Response, Done Right

Rapid response in the field

Insured mobile locksmith working on 2004 Honda Civic in Thousand Oaks CA
Transponder Key | Rapid On-Site Service
2004 Honda Civic | Ventura County
Insured mobile locksmith working on 2004 Honda Civic in Thousand Oaks CA
2004 Honda Civic Transponder Key
2004 Honda Civic
Transponder Key | Rescue Key
Estimated arrival time to Thousand Oaks
Priority ETA
Rapid Arrival
Available Today
Service location Thousand Oaks
Thousand Oaks
Help Is Close
805 Area
Same-Day Keys (805) 790-8162

Five Stars From Rescued Honda Drivers

Reviews from customers we rescued

A
Alan C.
Jan 2025
★★★★★

“My Sprinter van key broke and I was stranded. Marco was very friendly and helped me get three new keys quickly. I will definitely be using them again.”

Google Review
G
Gordon H.
Dec 2020
★★★★★

“My son had an issue opening the driver door on his Honda Civic. I called on New Year's Day and expected a nightmare, but they arrived quickly and fixed the problem in about half an hour.”

Google Review
T
T Klein
May 2020
★★★★★

“I needed a second key made for my 2012 Nissan Altima. They arrived quickly, finished in about 15 minutes, and gave me the best price I could find.”

Google Review
Watch real savings, real jobs62KFollowers
Google Guaranteed locksmith review for 2004 Honda Civic - EZ Car Keyz Thousand Oaks CA
“Real savings, real reviews.”
Google Guaranteed locksmith review for 2004 Honda Civic - EZ Car Keyz Thousand Oaks CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Honda Civic Mobile Service FAQ

Real costs, no dealer surprises

I lost all my keys for my 2004 Honda Civic. Can you still make one?
Yep. All-keys-lost on the 2004 Civic is a standard job for us. I connect through OBD-II, reset the immobilizer module, cut a new key by code using the HON66 profile, and program a fresh T5 transponder chip to the PCM. The old missing keys get erased from the system so they can't start the car. The whole thing takes about 30 to 45 minutes on site, no tow to the dealer. If you want to save yourself from ever being in this spot again, get a spare cut and programmed in the same session.
Can you erase lost or stolen keys so they no longer start my 2004 Civic?
Does my 2004 Honda Civic have a smart key with a hidden emergency blade?
My 2004 Civic cranks but dies after two seconds. Is that the immobilizer?
Can I program a new transponder key for my 2004 Civic myself?
Questions? Call (805) 790-8162

Honda Civic Key Service Areas

Emergency dispatch to your location

📍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
Guaranteed 2004 Honda Civic locksmith service area in Ventura County CA
Guaranteed 2004 Honda Civic locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

Emergency service available in all listed cities

SOS Call (805) 790-8162
Filmed on Location
Honda Civic car key replacement video
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Stranded Without a Honda Civic Key?

Emergency all-keys-lost service available 7 days a week. We bring everything to your location.

Rated number one 2004 Honda Civic locksmith - EZ Car Keyz Thousand Oaks CA
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Ventura County