Automotive locksmith
2019 Ram 4500 Key Replacement
Short answer: The 2019 Ram 4500 belongs to the 4500 5th-generation chassis cab and uses a smart proximity key with push-button start. Its immobilizer chip: Hitag AES (4A). We can usually add spare keys on site; some situations, such as all keys lost on certain trims, need extra steps or a dealer-supplied part. Julian's Locksmith cuts and programs 4500 keys on site; call (951) 903-3193 with your VIN for a quote.

A 2019 Ram 4500 key is more than a piece of cut metal. Depending on the trim, it carries a transponder chip that talks to the immobilizer, a remote that operates the door locks, or a proximity fob that lets the engine start with a push of a button. Each piece has to be matched and programmed, not just copied. Julian's Locksmith handles that work on-site in Southern California and the surrounding parts of the Inland Empire: we identify the exact key by VIN and part number, cut the blade by code, and pair the electronics through the car's diagnostic port. Below, you'll find the key types used on the 4500, what replacement involves, and what affects the cost.
2019 4500 key specs
| Generation | 5th-generation chassis cab, 2019–2024 |
|---|---|
| Ignition | Push-button start |
| Key types | Smart proximity key (push-to-start) |
| Transponder / chip | Hitag AES (4A) |
| Key blade | Emergency insert (Mopar 68399889AA) |
| Key battery | CR2032 |
| Locksmith support | Spares yes; some cases need extra steps |
From 2019 the 4500 uses push-button start and the Heavy Duty smart key, FCC ID GQ4-76T, with an emergency blade in the shell. Work trucks usually carry the three-button lock, unlock and panic fob, with remote start on some. Because the 2500, 3500, 4500 and 5500 share this fob family, a fleet can standardize on one style, but each fob is locked to its truck once programmed and needs unlocking before it can be reused.
What's specific to the 2019 4500
2019 was the first model year of the 4500 5th-generation chassis cab. Early-production cars sometimes use different part numbers than later ones, so for a 2019 Ram 4500 we confirm the exact key from the VIN or the old key's FCC ID before cutting anything. It also marks a change from the previous generation: the 2018 4500 used a remote head key, while the 2019 uses a smart proximity key with push-button start. Keys from the older car will not work in this one.
A 2019 Ram 4500 is about 7 years old now. Original fob batteries are near the end of their life at this age, so weak range or a "key not detected" message is often a battery before it is a failed fob. Cars this age are often on their second owner, which is when a single remaining key and a request for a spare tend to show up. Smart-key cars like the 2019 4500 can be targeted with relay attacks that extend the fob's signal from inside your home, so keep fobs away from exterior walls or in a signal-blocking pouch, and have any missing fob erased from the car.
Key options for the 2019 Ram 4500
- Smart proximity key (push-to-start). Proximity keys bring a security trade-off worth understanding. Because the fob is always listening, thieves with relay equipment can stretch its signal from inside your house to the car in the driveway. Keeping the fob away from exterior walls, or in a signal-blocking pouch, closes that gap, and some fobs offer a sleep mode described in the owner's manual. If a smart key for your 2019 Ram 4500 is lost or stolen, programming a replacement is the moment to delete the missing fob from the car's memory. And be wary of used fobs from online sellers: a lot of them are locked to the vehicle they came from and can't be reprogrammed to yours.
How the Ram immobilizer works on the 4500
Ram became a stand-alone brand for the 2011 model year, separating the pickups from Dodge, and the badge now also covers the C/V cargo van, the ProMaster vans and the 2011 Dakota. The full-size pickups of 2011 and 2012 start with a Fobik, a bladeless remote that plugs into an ignition node in the dash; the node reads a Philips ID46 transponder inside the fob before the engine is allowed to run. The 2013 update kept the Fobik on most trucks but moved to a new fob family, and Keyless Enter 'n Go, with a proximity fob and a start button, was available on many higher trims. The 1500 Classic carried that Fobik all the way to 2024. The redesigned 1500 and Heavy Duty trucks of 2019 switched to push-button smart keys with Hitag AES (4A) transponders, learned by a radio-frequency hub and shielded by a security gateway at the diagnostic port. The 2011 Dakota kept a traditional cut transponder key. The vans follow Fiat practice instead: the ProMaster and ProMaster City launched with SIP22 flip keys carrying an ID46 chip, and the full-size ProMaster moved to a push-button smart key for 2022.
- The 4500 shares the GQ4-76T smart key with the 2500, 3500 and 5500 of the same years.
- Heavy Duty smart fobs from these years take a CR2032 coin cell.
- A security gateway blocks key programming at the OBD-II port until the tool is authorized.
Programming a 2019 4500 key
Smart keys are added to the radio-frequency hub through the OBD-II port after we get past the security gateway. Adding fobs with a working key is routine, including several at once for a fleet. If every fob is lost, many trucks can still be handled on site, while some need the RF hub programmed on the bench or a dealer visit. We confirm which applies from the VIN.
Spares are routine. All-keys-lost may require RF hub bench programming or the dealer.
Lost every key to your 4500?
- 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 Ram 4500 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. With no key to copy, the cuts come from the vehicle itself. We retrieve the key code through manufacturer channels where possible, or decode a door lock with a pick-decoder tool. Then we cut the blade on our code machine and confirm it turns the lock smoothly.
- Program the key to the immobilizer. Next, the new key is introduced to the car's security system. Many vehicles allow this through the OBD-II port with a PIN or security procedure. Some all-keys-lost cases require reading a module on the bench, and a few platforms only allow dealer programming, which we'll tell you up front.
- 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.
Why a spare key pays for itself
- 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.
- A spare turns a future all-keys-lost emergency into a simple add-a-key job. With one working key in hand, programming is quicker, and the chip or fob can often be paired without decoding locks or reading modules, which keeps the cost of a lost key far lower.
- When you sell or trade in the vehicle, buyers and dealers expect two keys. A missing key can come up during an appraisal or a private-sale negotiation, so having both on hand keeps the conversation about the car, not about what it will cost the next owner to replace one.
Dealer or mobile locksmith?
Price and parts are the other half of the comparison. Dealers typically sell factory keys only and charge their posted service rates for programming. We offer factory keys where it matters and quality aftermarket alternatives where they perform well, and the quote covers cutting, programming and the trip, with nothing tacked on at the end. Timing differs too. Dealer service departments generally keep business hours, while we take automotive calls every day from 6:30 a.m. to 11:30 p.m., which covers early commutes and late evenings. We're closed overnight, and we'll be upfront if your timing means the dealer or a next-day visit is the better plan. Neither option is wrong; the right one depends on your 4500 and your schedule.
4500 key battery
Most fobs for a 2019 Ram 4500 open along a small slot in the seam; a coin or a plastic pry tool works better than a screwdriver, which chews up the housing. If the fob hides a mechanical blade, slide it out first, since the case often opens from that gap. Note which side of the old cell faces up, swap in a fresh CR2032, and press the halves together until they click all the way around. Handle the new battery by its edges, because skin oil on the faces can hurt contact. In most cases the fob keeps its programming through a battery change, so test lock, unlock and start, and you're done.
How the job works
- Identify the exact key your 4500 uses. We ask a few quick questions on the phone: the year, whether the car starts with a turn key or a button, how many keys you have left, and whether the remote still works the doors. Then we check the VIN against our programming references so the van arrives with the correct blank or fob, not a close guess.
- Verify ownership before any work. Before cutting or programming, we compare your government photo ID with the vehicle registration or title and check that the VIN on the paperwork matches the VIN on the dash. If the registration is locked inside, we open the car first, confirm the documents, and only then make the key.
- 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 Ram 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. With the blade done, we connect to the OBD-II port and register the new key with the immobilizer. Depending on the Ram system, this may involve a security PIN, a timed waiting period, or on-board button sequences for the remote. On some vehicles we clone a working key's chip instead, when that's the more reliable path.
- Test everything and clear out old keys. The last step is a short walkthrough. We show you how many keys the car now recognizes, point out the dead-fob start method for your vehicle, and hand you an itemized receipt. If a spare makes sense, it's simplest to add it during this same visit while the equipment is already connected.
What affects the price of a 4500 key
- The type of key. Price follows complexity. The more the key does, the more it costs to replace: brass blade, then chip, then remote buttons, then full keyless entry and push-button start. If your 4500 came with different key styles by trim, the one your car actually uses is the one that sets the quote.
- Factory or aftermarket parts. Some owners want an exact factory match; others just want a dependable key that starts the car. Both are reasonable choices. The part you pick changes the quote, so we lay out the options side by side, with the trade-offs in fit, button feel and long-term durability, before you decide.
- Programming complexity and security access. Some immobilizers accept a new key with a few on-board steps. Others need a PIN code, a timed security wait, manufacturer online access, or removing a module to read its data. Every extra layer of security on the Ram system adds equipment time and labor to the job.
- Travel, timing and extra repairs. Sometimes a key problem is really a lock problem: an ignition that won't turn even with the right key, or a door cylinder that has been jammed for years. Fixing those is separate work. We point them out, explain the options, and quote the whole job up front so the bill holds no surprises.
Call (951) 903-3193 with your VIN and the keys you still have, and we'll quote the job before any work starts.
Common Ram key problems
- Fob button layouts vary with options such as air suspension, power tailgate and remote start. A replacement with the wrong part number may start the truck but leave those buttons dead, so we match the label inside your old fob.
- A fob bought from a parts counter or online usually arrives with an uncut emergency key. Left uncut, it cannot open the door when the fob or the truck battery dies, so have it cut when the fob is programmed.
- Aftermarket remote starters are common on diesel Rams and usually rely on an immobilizer bypass module. After keys are reprogrammed, remote start may quit until the bypass is re-learned, even though the fob starts the truck normally.
Tips from a mobile locksmith
- When a key's head cracks or its blade bends, replace it before it fails. A transponder chip can slip out of a split head, and a bent blade can break off inside the ignition or door lock, turning a simple key replacement into an extraction and repair job. Small symptoms are the inexpensive time to act.
- If your vehicle has a proximity key, think about where it sleeps at night. A fob hanging by the front door can sit within range of relay equipment used to open and start cars from outside. A drawer deeper inside the house, a signal-blocking pouch, or the fob's own sleep mode reduces that risk considerably.
- Make the spare before you need it. Adding a key while one still works is quicker and less expensive than starting from nothing, and it keeps the simpler programming options available. Good moments are right after buying the car, or as soon as one of your two keys goes missing.
Proof of ownership
Not every situation fits the simple case, so here's how we handle the common exceptions. For a leased or financed vehicle, a registration that lists you as the registered owner or lessee works with your ID. If you just bought the car, bring the signed title or bill of sale along with your ID. For a company or fleet vehicle, we need written authorization from the business plus the driver's ID. If the car belongs to a family member, the registered owner should be present or provide signed permission and a copy of their ID. Rental vehicles go through the rental company.
Need a 2019 Ram 4500 key?
Locked out, keyless, or just tired of a fob that only works half the time? Julian's Locksmith can help with your 4500 in Southern California. Have your registration and photo ID ready, call (951) 903-3193, and we'll give you an honest answer about what we can do on-site and what it will cost before we head your way.
Frequently asked questions
Can a locksmith make a key for a 2019 Ram 4500?
We can usually add spare keys on site; some situations, such as all keys lost on certain trims, need extra steps or a dealer-supplied part. Spares are routine. All-keys-lost may require RF hub bench programming or the dealer. The 2019 4500 uses a smart proximity key with push-button start.
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.
Why does my 4500 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 2019 Ram 4500 resolves it.
Can you make a key for my 4500 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 2019 Ram 4500 when you call.
How long does it take to make a new Ram 4500 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.
Can you program a key fob I bought online for my 2019 4500?
Sometimes. The fob has to match your vehicle's FCC ID, frequency and chip type, and it can't already be locked to another car, which is common with used smart keys. Send us a photo of the fob, the listing and your VIN before the appointment. If it's compatible, we'll cut and program it. If it isn't, we'll tell you before charging for an attempt, and we can supply a part we know will work.
Is the 2019 Ram 4500 push-to-start?
Yes. The 2019 4500 uses push-button start with a smart proximity key, so a replacement has to be a programmed smart fob, not just a cut blade. The fob also hides a mechanical emergency blade for the doors.
What battery does a 2019 Ram 4500 key use?
Fobs for the 2019 4500 use a CR2032 coin cell. Replace it when range drops or the car shows a key-battery warning. If the fob still fails with a fresh battery, the board, buttons or programming may be the problem, which we can test on site.
