Automotive locksmith
Chrysler Concorde Key Replacement
Short answer: The second-generation Concorde (1998–2004) was Chrysler's full-size front-drive sedan on the LH platform, sharing its body structure with the 300M, LHS and Dodge Intrepid. Across our 2000–2004 coverage, every car uses a turn key with Chrysler's 4D64 Sentry Key chip, and most have a separate keyless entry fob. Keys, transponders and remotes cross over with those sister cars, which keeps replacements simple to source. We make Concorde keys for model years 2000–2004. Call (951) 903-3193.

Keys tend to vanish far from home: a gym locker, a freeway rest stop, a jobsite across the Inland Empire. When the vehicle is a 2004 Chrysler Concorde and no spare is within reach, the practical fix is a locksmith who comes to the car. Julian's Locksmith serves Southern California from our base in San Bernardino with a mobile van set up for automotive key work. Tell us where the car is parked and what kind of key it used, and we'll give you an honest ETA and a quote. Once we're there and ownership is confirmed, we make the key from the car itself, using the VIN, lock decoding, or both, and program it before you drive off.
Chrysler Concorde keys by year
Concorde keys by generation
| Generation | LH (2nd generation), 2000–2004 |
|---|---|
| Ignition | Turn-key ignition |
| Key types | Transponder (chip) key; Key with separate remote fob |
| Chip | TI 4D64 |
| Key battery | CR2016 (remote) |
| Locksmith support | Full |
The Concorde's ignition key is a Y159-keyway blade with a 4D64 transponder in the head, sold as the Ilco Y160-PT blank. Keyless entry uses a separate four-button fob: FCC ID GQ43VT9T for 2000 and GQ43VT17T for 2001–2004, both powered by CR2016 batteries and both with lock, unlock, trunk and panic buttons. If your Concorde never had a fob, only the transponder key is needed to drive it. Programming runs through the immobilizer module via the OBD-II port and needs the 4-digit PIN, which current tools can usually pull on this platform. The 2001–2004 remote supports an on-board learning sequence when you already have one working fob. Without any working key, we cut a blade by code or from the door lock and program it on site.
Chrysler key security
Chrysler began fitting its Sentry Key Immobilizer System (SKIS) in the late 1990s, and by the 2001 model year most Chryslers in our range used it. The first wave of keys carried a Texas Instruments 4D64 chip in a head cut for the Y159-family keyway, sold as the Ilco Y160-PT blank. From about 2004 the chip changed to a Philips ID46, and most cars paired it with a remote-head key that put the transponder and the keyless entry buttons in one piece. For 2008 the 300 and Town & Country moved to the fobik, a blade-less remote that turns inside a wireless ignition node (WIN), with a proximity version for push-button start. The 2011 redesign of the 300 added a proximity smart key, and the Pacifica minivan, the 2015–2017 200 and the 2019–2023 300 use fobs with Hitag AES encryption. Vehicles from 2018 on also carry a secure gateway module that limits what aftermarket tools can write. Two models break the pattern: the Mitsubishi-built Sebring coupe uses a 4D61 chip and a Mitsubishi blade, and the Mercedes-based Crossfire uses an HU64 flip key with Mercedes immobilizer electronics.
Most Chrysler key work runs through the OBD-II port and a 4-digit security PIN tied to the vehicle. Current programmers can read that PIN from the immobilizer on many older models; on others it comes from the dealer by VIN, which requires proof of ownership. Many cars through about 2010 also have an owner-level key-learn routine, but it needs two working keys already in hand, so it is no help once you are down to one or none. A remote-head key can need the chip and the buttons learned in separate steps, so a key that starts the engine may still need its remote side set up. Most 2011 and newer remotes need a programming tool. On 2018 and newer vehicles, the secure gateway module adds a bypass cable or authenticated login to every job. Before we cut or program anything we verify your ID and ownership, and we quote the whole job, including key, cutting and programming, before starting.
All Concorde keys lost
Losing every key is usually recoverable on a Chrysler without towing it to a dealer. For bladed keys, we decode a door lock or cut by code from the VIN record after confirming you own the vehicle, then program a new transponder or remote-head key through the OBD-II port. Fobik-equipped vans and sedans need no ignition cut, so that work is mostly electronic plus a new emergency insert for the door. The harder cases are the AES-encrypted smart keys on the Pacifica, Voyager, 2015–2017 200 and 2019–2023 300, where some vehicles need the radio frequency hub handled directly or a dealer visit, and the Crossfire, whose Mercedes-derived keys are normally ordered pre-coded. We tell you which case applies before we drive out.
- Gather your documents and the VIN. Call with the year, make, model and VIN if you can read it through the windshield, plus where the car is parked. Those details let us confirm whether your Chrysler Concorde can be done on-site and bring the right key, so the first trip is the only trip.
- Get into the vehicle without damage. If the car is locked, we open it with non-destructive tools such as an inflatable wedge and a long-reach rod, or by picking the door lock. Some vehicles need a careful approach to avoid triggering the alarm, which can interfere with programming later.
- Originate a new key from the car. Originating a key means building it without a sample. The door lock usually reveals most of the cuts; any it doesn't are worked out by test-cutting and trying the ignition or a second lock. The finished blade should feel like a factory key, not a forced fit.
- Program the key to the immobilizer. All-keys-lost programming often takes longer than adding a key, because the car has no trusted key to authorize the change. We follow the procedure your Chrysler Concorde requires, then confirm the engine starts and keeps running and the remote or keyless functions respond.
- Erase missing keys and add a spare. Once the car starts, we remove the lost keys from memory wherever the system allows, so they can't start the engine if someone finds them. Making a second key during the same visit costs much less than a repeat all-keys-lost call down the road.
Dealer or mobile locksmith?
The biggest difference between a dealership and a mobile locksmith is where the work happens. A dealer programs keys in its service bay, so if every key is lost, the car usually has to be towed there, and you work around the service department's schedule and the time it takes to order a key by VIN. Julian's Locksmith brings the cutting machine, key blanks and programming equipment to the car, whether it sits in your driveway, a workplace lot or a parking structure. For a 2004 Chrysler Concorde we can program on-site, that means no tow and no shuttle rides back and forth. The trade-off is real, though: on vehicles where only the dealer can program keys, a tow or appointment may still be necessary, and we'll say so before you spend anything on our visit.
How the job works
- Identify the exact key your Concorde uses. Every job starts with the VIN, the trim and a look at any key you still have. From those we confirm the keyway, the transponder or smart-key chip, the remote frequency, the FCC ID and the button layout. Two Chrysler Concorde keys that look identical can carry different electronics, so this step keeps the wrong part from ever reaching the car.
- Verify ownership before any work. California holds licensed locksmiths responsible for knowing whose car they're making keys for. We record your name, the VIN and the plate on a work order. If you aren't the registered owner, you'll need the owner's written authorization along with your own photo ID before we begin.
- Get the key code or decode the lock. If you still have a working key, we can read its cuts directly and check them against the factory depths for the Chrysler keyway. A worn key gets corrected back to spec during this step, so the new key turns crisply instead of reproducing years of wear in a fresh piece of metal.
- Cut the blade on-site. Our van carries a code-cutting machine that handles both traditional edge-cut blades and the laser-cut, side-milled profiles common on newer keys. The blade is cut to the code, then test-fitted in a door lock and the ignition or emergency keyhole to confirm smooth operation before any programming begins.
- Program the chip, remote or smart key. Programming tells the car's computers that the new key belongs to the vehicle. Transponder chips are added to the immobilizer, remote buttons to the body control module, and proximity fobs to the keyless system. If a step requires dealer-only access on your Concorde, you'll have heard that before we arrived, not halfway through the job.
- Test everything and clear out old keys. Before we leave, every function gets checked: doors, trunk or liftgate, panic button, remote range, engine start, and the emergency blade in the driver's door. If keys are missing, we delete them from the car's memory where the system allows, so a lost key can no longer start the engine.
What affects the price of a Concorde key
- The type of key. The biggest factor is technology. A plain mechanical key is a cutting job only. A transponder key adds a chip and programming. Remote-head and flip keys add a circuit board, and a proximity fob for a push-button Chrysler Concorde is the most involved of all, both in the part itself and in the programming.
- Factory or aftermarket parts. Factory keys and fobs carry the manufacturer's part number and usually the highest parts cost. Quality aftermarket keys use compatible electronics at a lower price and work well on many vehicles. We tell you which options we trust for your car, and where an aftermarket version has known range or fit issues, we steer you to OEM.
- All keys lost or adding a key. On some vehicles, losing the last key changes the programming entirely, from a quick add-key procedure to a full immobilizer reset or a module read on the bench. That extra labor shows up in the price, and it's the strongest argument for keeping a spare in the house.
- Programming complexity and security access. Two cars with similar-looking keys can program very differently. Newer platforms often guard key programming behind encrypted access or paid credentials, while older systems allow straightforward OBD-II pairing. We check the exact procedure for your VIN before quoting, so the number reflects the real work involved.
Concorde key types explained
- Transponder (chip) key. There are two ways to give a new transponder key the right identity. Cloning reads the chip in a working key and writes that same ID onto a special cloneable chip, so the car can't tell the two apart. Programming adds a brand-new key ID to the immobilizer's memory through the OBD-II port, sometimes after entering a security PIN tied to the VIN. Cloning is handy when you have a working key and the chip family supports it. Programming is the better choice when keys are lost, because it also lets us remove keys you no longer control from the car's memory. For your Chrysler Concorde, we'll explain which method fits and why.
- Key with separate remote fob. Separate remotes are easy to find online, which is exactly why they cause trouble. A listing can show the same shell as your Chrysler Concorde remote while hiding a different FCC ID, frequency or internal chip, and some used remotes are locked to the first vehicle they were paired with. We're glad to look at one you've already bought, and we'll tell you honestly whether it can be paired before charging you to try. If the remote side of your setup has become unreliable, it's also worth asking whether a fresh remote and a newly cut key, matched together, would cost less than chasing repairs on aging parts.
Why a spare key pays for itself
- Some vehicles make it hard to add a key once you're down to one. Certain immobilizer systems let an owner program an extra key on-board only when two working keys are present, so a second key preserves the easy options for later and avoids a full reset.
- A spare stored safely at home rescues you from a locked car with the fob sitting on the seat, a key dropped somewhere along a hiking trail, or a fob that stops responding on a busy morning. Keep it indoors, never in a magnetic box under the bumper.
- Electronics fail without warning. A fob dropped on concrete, run through the washing machine or soaked at the pool can quit for good. With a second programmed key, that's an annoyance you fix on your own schedule, not a stranded car that needs attention today.
Tips from a mobile locksmith
- Every so often, use the mechanical blade in the driver's door lock. Cylinders that go years without a key can seize from dust and dried grease, and you won't find out until the day the fob dies and the blade is your only way in. A small shot of dry lubricant keeps the lock ready.
- Learn your car's dead-fob start method now, in the driveway, rather than in a dark parking lot later. Depending on the make, you hold the fob against the start button or place it in a marked pocket in the console. Also find the hidden keyhole on the driver's door handle and practice using the emergency blade.
- Never hide a spare key or fob on the outside of the car. Magnetic boxes in wheel wells and under bumpers are the first places a thief checks, and with a proximity fob, a hidden key can let anyone open the doors and drive away. Keep the spare at home or with someone you trust.
- On any vehicle with a turn-key ignition, keep the key ring light. A heavy cluster of keys, tools and charms swings with every bump and slowly wears the ignition wafers and the key itself. When the key starts to stick or needs a wiggle to turn, deal with it early, before it stops turning entirely.
Common Chrysler key problems
- Worn Y159 ignition keys on older minivans, PT Cruisers and LH sedans can stop turning smoothly or bind in the cylinder. Copying a worn key copies the wear, so we cut replacements to the original code rather than tracing the old blade.
- On 2008–2016 Town & Country vans and 2008–2010 300s, a fobik that will not turn or is not recognized may be a worn fob or a failing wireless ignition node. We test with a known-good fob before anyone replaces parts.
- Remote-head keys from the 2004–2014 era often crack where the blade meets the plastic head. A new shell can save the electronics, but the transponder chip has to move with them or the car will not stay running.
- A remote that only works from a few feet away usually needs a fresh battery. Fobs from 1999–2006 use CR2016 coin cells, while most later remote-head keys, fobiks and smart keys take a single CR2032. Inland summer heat is hard on these cells, so the battery is the first check.
- Remotes bought online for 2004 and later Chryslers still have to be paired to the car. Some cars through about 2010 can learn one at home if you hold two working keys; otherwise it takes a programming tool, and used fobs must be unlocked first.
- On 2018 and newer Chryslers, the secure gateway module blocks many aftermarket scan tools. Key programming still works with a bypass cable or authenticated access, which is why a shop without that setup may tell you only the dealer can help.
- The 2018 and 2019 Chrysler 300 smart keys look identical but carry different transponder chips and different FCC IDs, M3N-40821302 versus M3M-40821302. Ordering by appearance alone leads to a fob that will not program, so match the model year and part number.
- Sebring orders get mixed up often: the sedan and convertible use Chrysler keys and fobs, while the 2001–2005 Sebring coupe uses Mitsubishi-based keys and remotes that fit none of the other Sebrings.
Proof of ownership
Before we cut or program a key for any vehicle, we verify that you have the right to it. Please have two things ready: the current registration or the title, and a government-issued photo ID with a matching name. We also check that the VIN on those documents matches the VIN plate on the dashboard. If the registration is locked inside the car, that's fine; we open the vehicle first, check the paperwork in the glove box, and only then make the key. If something doesn't line up, we stop and sort it out before any key is made.
Frequently asked questions
How long does it take to make a new Chrysler Concorde key?
Adding a key to a car that already has a working one is usually a single short visit, often finished within an hour once we're on-site. All-keys-lost jobs take longer because we may need to open the car, decode a lock and run a longer programming routine. Some security systems also impose their own waiting periods during programming. We'll give you a realistic time estimate for your specific vehicle when you call.
Why does my Concorde crank but not start with a newly cut key?
That pattern points to the immobilizer, not the engine. The blade is cut correctly, so the ignition turns, but the car doesn't recognize the chip and blocks fuel or spark. A flashing security light usually confirms it. The key either wasn't programmed, carries the wrong chip type, or is an unprogrammed copy from a hardware store. Programming a correct key to your 2004 Chrysler Concorde resolves it.
Do you come to Southern California to make car keys, or do I bring the car to you?
We come to you. Julian's Locksmith is a mobile-only service, so the van drives to wherever the car is parked in Southern California: your driveway, an apartment lot, a workplace or a shopping center. That matters most when every key is lost, because it saves you a tow. Just make sure we'll have room to work beside the driver's door and that the vehicle is accessible when we arrive.
What do I need to show before you make a key for my Concorde?
A current registration or title and a government-issued photo ID in the same name. We match the VIN on the paperwork with the one on the dashboard before any cutting or programming. If you're not the registered owner, bring the owner's written authorization and a copy of their ID. If the documents are locked in the car, we'll open it first and check them there.
Can you make a key for my Concorde if I've lost every key?
In most cases, yes. We verify ownership, open the car without damage if needed, originate a key from the key code or by decoding a door lock, and program it to the immobilizer on-site. A few platforms restrict all-keys-lost programming to the dealer, and some need a module read on the bench before a new key is accepted. We'll tell you which applies to your 2004 Chrysler Concorde when you call.
