2003 Acura MDX
Affordable Same-Day Key Service in Ventura County

Q: Once you are at my MDX, how long does a spare key take?

If you still have one working key, an add-a-key job is quicker because I can cut the blade and either clone the Megamos ID13 chip data or register a new transponder directly to the vehicle. All-keys-lost takes longer. I have to originate the mechanical cuts and then perform an immobilizer registration from scratch. For the remote, bring every transmitter you want working. This system learns them in a batch. If one is not present during programming, it often gets erased from memory.

Q: Can EZ Car Keyz beat the dealer timeline for a 2003 MDX key?

Yes, because the slow part at a dealer is rarely the actual key registration. Owners talk about the programming itself being a short task, but the visit turns into a service write-up, parts counter time, and waiting for a tech. If the MDX cannot be driven in, towing becomes its own problem. I cut and program at your vehicle in Oxnard, so you skip the shop workflow and get back on the road the same day instead of planning your schedule around a service lane.

Q: Green key light is blinking and my MDX cranks but will not start. Why?

Yep. That blinking green key icon is the immobilizer saying it does not recognize the key’s code, and the fuel system is disabled. Quick checks that actually help on a 2003 MDX: * Pull the key off the keyring. Other chip keys or large metal tags can interfere. * Turn to LOCK, remove the key, reinsert it, then try again. * Try your spare key if you have one. If it keeps happening, the issue can be a failing immobilizer ring or control unit around the ignition, commonly referenced as immobilizer unit 39730-S3V-A01, or a damaged chip head.

Q: My key comes out with the shifter not in Park. Is that normal?

No. Acura issued a safety recall for certain 2003 to 2006 MDX models under campaign S74, tied to Service Bulletin 13-005 which replaced 12-044. The failure allows the ignition key to be removed even when the shift lever is out of Park. That creates a rollaway risk if the parking brake is not set. The dealer repair involves inspecting the shift interlock system and installing an updated shift interlock lever, and some vehicles also receive ignition switch related parts during the fix.

Professional Keys | Honest Pricing

Available Thursday

Transponder

Remote

Skip the trip to the dealer. Our mobile locksmith brings professional-grade equipment right to your door anywhere in the area. Your new key is cut and programmed while you wait.

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2003 Acura MDX key replacement cost - EZ Car Keyz Oxnard CA

No Hidden Fees

Key + cutting + programming all included in one price

Mobile Service

Our van carries everything, no shop visit needed

15-25 Min Arrival

Our mobile unit is dispatched immediately

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2003 Acura MDX
Key Options

Professional keys without the professional markup

Remote

Pairs With Key

FCC IDE4EG8D-444H-APart #72147-S3V-A02Buttons3BatteryCR2025Frequency308 MHzRemote StartNo

✓ In Stock · Programmed On-Site

Transponder Key

Cheaper

Key BlankHD106-PTPart #BHD106-PT

✓ In Stock · Programmed On-Site

Mechanical Key

Budget

Surf Key

Key BlankHD103TypeEmergency Blade

✓ In Stock · Cut On-Site

Budget 2003 Acura MDX key fob options from EZ Car Keyz Oxnard CA

🔧 PRO TIP

2003 MDX is first-gen YD1 and it is not a smart key setup. Ignition uses an HD106 transponder key with a Megamos ID13 chip, so a plain hardware-store copy will unlock doors but never start the engine. The common blank family is BHD106-PT, same lineage as Strattec 692246. The remote is separate, FCC ID E4EG8D-444H-A with a CR2025 battery, and Touring trims use Memory 1 or Memory 2 transmitters.

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Your Acura MDX Key at Your Location

Your driveway vs their service bay

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

Your driveway beats their waiting room

Schedule Now (805) 790-8162

2003 Acura MDX Transponder Key Replacement - Fast, Affordable & Professional

In Oxnard at Five Points Shopping Center, a 2003 Acura MDX owner flagged me down with one gray valet key and a tired look.

The valet would start the SUV, but it would not open the glove box, and she had no working remote. Every lock and unlock meant walking around and using the door cylinder like it was 2003 all over again.

I set up behind the van and cut a fresh master key to match her existing one. On these first-gen MDX trucks, the transponder has to be accepted by the immobilizer or the green key icon on the dash will blink and the fuel gets shut off. So I always do the slow, boring checks: key in, key on, start, shut down, repeat. Watch the indicator. Make sure it behaves.

Once the master was registered, I paired a replacement transmitter and cycled every door and the tailgate from the buttons.

When the new black master opened the glove box on the first turn, that was the moment. No tow, no service line, no leaving the MDX somewhere all day. It stayed parked at Five Points, and she drove home with a proper set again for way less than the dealer route.

Acura MDX Key at a Fair Price

Same dealer-quality key at a fraction of the cost. Fixed pricing, no hidden charges.

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Fully Insured

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On-site and on time

2003 Acura MDX

Transponder Key | Quick Turnaround

10-15 min

En Route

Available Today

Oxnard

Same-Day Here

805 Area

Rapid Service (805) 790-8162

What Fair Acura Pricing Sounds Like

Happy customers who saved hundreds

A

Antoine M.

Dec 2025

★★★★★

“I am very pleased with the value of the service I received from Marco at EZ Car Keyz. They arrived extremely fast, opened my door in no time, and the price was right on point.”

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T

TJ P.

Jun 2025

★★★★★

“About 15 minutes after calling, he was already at my home. I had lost my original Ford key and he made and programmed a new one on the spot. Very fast, very professional.”

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M

Marianne S.

Dec 2022

★★★★★

“I had two Subaru key fobs made and Marco provided excellent service. He stayed persistent through multiple part orders to make sure everything was correct. Very thorough, punctual, and great communication throughout.”

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Customer review showing savings on 2003 Acura MDX key by EZ Car Keyz Oxnard CA

★ 5.0 out of 5 - Based on 1,000+ Google Reviews

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Acura MDX Key Fob Battery and Service Questions

Real costs, no dealer surprises

Lost your only 2003 MDX chip key after hours. What can you do?▼

With this MDX, you need a transponder key that is registered to the immobilizer. A cut-only metal copy will turn the ignition but the engine will not run. Dealers can handle it, but they operate on business hours and typically require the vehicle present for programming. If you are stuck in Oxnard, including at Five Points Shopping Center, I come to the SUV, cut the correct key, register it to the immobilizer, and test start it on site. No waiting for Monday and no guessing with a hardware-store duplicate.

Once you are at my MDX, how long does a spare key take?▼

Can EZ Car Keyz beat the dealer timeline for a 2003 MDX key?▼

Green key light is blinking and my MDX cranks but will not start. Why?▼

My key comes out with the shifter not in Park. Is that normal?▼

Questions? Call (805) 790-8162