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VENTURA COUNTY
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Oldsmobile Alero Key Replacement in Ventura County (1999-2004)

1999 - 2004

Used Alero with one key in Ventura County? Mobile cut and program your replacement for half the dealer price, 1,000+ five-star reviews from drivers who made the same call. Call now.

On-Site Service OEM-Quality Parts
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How Alero Keys Changed Over the Years

Early 1st Gen: PK3 Transponder

1999-2001

A mechanical key paired with GM's Passlock II security system. There is no transponder chip in the key; instead, a resistance-based sensor inside the ignition cylinder verifies the key when you turn it. No remote built into the key on these early models, just a separate fob. A Passlock relearn after any key or cylinder service is required, which we handle with a scan tool.

Mid 1st Gen: PK3+ Transition

2002

A mechanical key, same as 1999-2001, running on the same Passlock II resistance sensor in the ignition cylinder. Same blade, same separate 3-button remote fob with a CR2032 battery. After replacing the cylinder or adding a new key, the BCM needs the 10-minute Passlock relearn we perform on-site.

Late 1st Gen: Remote Head Key

2003-2004

A remote head key that combines the mechanical key and the 3-button remote into one unit. Still uses the Passlock II resistance sensor in the ignition cylinder (no transponder chip in the key). Fewer things to carry, same Passlock relearn after service.

Which Key Does Your Alero Use?

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Transponder Key (PK3)
1999-2001

A standard metal key with a Passlock-compatible blade. Your remote is a separate fob you carry alongside the key.

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Transponder Key (PK3+)
2002

Identical to the 1999-2001 key. The Passlock II sensor and procedure stayed the same. Still a separate key and fob setup.

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Remote Head Key (PK3+)
2003-2004

Your remote buttons are built into the key head. One piece to carry instead of two. Same Passlock II security as the earlier years.

Alero Key Cost Breakdown

Every price includes the key blank, blade cutting, transponder chip programming, and remote sync, all done at your location.

Key Type
EZ Car Keyz
Oldsmobile Dealer
1999-2001 (PK3 Transponder)
Transponder Key
$150-$225
$250-$400
2002 (PK3+ Transponder)
Transponder Key
$175-$250
$275-$450
2003-2004 (PK3+ Remote Head)
Remote Head Key
$175-$275
$300-$500
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EZ Car Keyz vs. the Dealer

The dealer orders your Alero key and tells you to come back next week. We show up today with the part in hand.

EZ Car Keyz
Oldsmobile Dealer
Typical Cost
$150-$275
$250-$500
Parts Wait Time
We stock GM blanks on the truck
3-7 day parts order common
Location
Your driveway, parking lot, wherever you are
Their service bay
Tow Required
Never
Yes, if all keys lost
Time on Site
20-45 minutes
Half day minimum
Available
6 AM to 11:30 PM, 7 days
Weekday service hours only
Skip the Dealer - Call (805) 790-8162

Common Alero Key Problems

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Transponder Chip Failure

You turn the key and the security light flashes. Engine cranks but will not fire. After 20 years of heat cycles in a Simi Valley lot, the Passlock sensor in the cylinder loses its ability to read resistance. We test on-site and replace or bypass the cylinder.

🔧

Ignition Cylinder Wear

The N-body ignition cylinder is one of the most-replaced lock parts. Tumblers get sloppy, the key jiggles without catching, then will not turn. We extract the old cylinder, install a new one, and rekey to match your existing key, no whole new set needed.

🔋

Remote Fob Battery Drain

First check on a 2003-2004 remote head key that stopped locking: the CR2032. Seals on these one-piece fobs are not great, and moisture gets in. A fresh battery fixes it. If the circuit board has corrosion, we replace the whole remote head key on-site.

⚠️

BCM Programming Lockout

On 2003-2004 Aleros, disconnecting the battery or jump-starting can cause the BCM to reject all keys until a relearn. Not a key problem. We connect our scan tool, run the PK3+ relearn with the correct PIN, and your existing keys work again.

Can You Program an Alero Key Yourself?

1999-2004 (Transponder Key)
No - Pro Required

No DIY self-programming for transponder keys on any Alero. Passlock II requires a 10-minute relearn procedure with a scan tool after any key, cylinder, or BCM service. This is a locksmith or dealer job, no shortcuts.

1999-2004 (Remote Fob Only)
Yes - DIY Possible

You can pair the remote buttons yourself using a door cylinder switch and ignition key cycle procedure. This only programs the lock, unlock, and trunk buttons. It does not touch the transponder chip, so your key still needs professional programming to start the car.

How It Works

Oldsmobile service call in Ventura County
01

Call or Text Us

Reach us at (805) 790-8162. Tell us your Alero's exact year and whether you have any working keys.

Oldsmobile locksmith arrived in Ventura County
02

We Drive to You

Wherever you are in Ventura County, from Oxnard to Moorpark, we come to your location.

Oldsmobile key registered in Ventura County
03

Cut, Program, Test, Done

We cut the blade to your Alero's locks, run the Passlock relearn through OBD-II, sync the remote buttons, and test everything.

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Alero Key Questions We Hear All the Time

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💡

Did You Know?

You would not guess it, but the Oldsmobile Alero was the very last vehicle produced under the Oldsmobile name before GM discontinued the brand in 2004. That final Alero rolled off the line and closed the book on 107 years of Oldsmobile production. One of the longest runs in American automotive history, ended quietly with a compact sedan.

Service Area

KEY REPLACEMENT ACROSS ALL OF VENTURA COUNTY

We come to you, anywhere in Ventura County. No shop visit, no towing. Our mobile locksmith arrives at your home, office, or roadside.

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
Alero key replacement service area in Ventura County
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Need a Oldsmobile Key? Call Now

Mobile locksmith serving all of Ventura County. We come to you.

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