By Jacob, licensed and insured locksmith and owner of Jacob Lock and Key, serving Gary and Northwest Indiana.
Mobile Car Key Replacement Across Northwest Indiana
Losing or breaking a car key does not have to mean a tow and a long dealership wait. Jacob Lock and Key is a fully mobile auto locksmith, so we come to your driveway, workplace, or a parking lot anywhere across Northwest Indiana, from Gary and Hammond to Merrillville, Crown Point, Portage, and the rest of the Region. We cut and program keys for most cars, trucks, and SUVs right at the curb, and we usually reach you within 10 to 15 minutes. Whether you lost every copy or simply want a backup, we handle it on the spot, and we give you an upfront quote before any work begins.
Lost Car Keys and New Keys Made
When every key is gone, we can still get you back on the road. First, we confirm the make, model, and year, and then we generate a fresh key from the vehicle itself, even if nothing is left to copy. Because we carry key blanks, cutting machines, and programming tools in the van, we finish most lost-key jobs in one visit. For most vehicles, that means cutting the key blade and pairing a transponder chip or smart fob to the car, so it starts normally. As a result, a total key loss is far less of an emergency than it used to be.
Spare Keys, Key Duplication, and Laser-Cut Keys
A single car key is a gamble, so a spare is one of the smartest and cheapest things you can carry. We duplicate and cut car keys of nearly every type, from basic metal keys to laser-cut (sidewinder) keys with their thicker, center-milled blade. Rather than wait until you are stranded, ask us to make a spare while we are already on-site for another job. We also program a second smart fob or remote, so your household has a backup that actually starts the car, not just a blade that opens the door. In short, if a key opens or starts a vehicle, we can almost always make you another one.
Key Fob and Remote Replacement and Programming
Most modern keys are really small computers, so we program them, not just cut them. We replace and program key fobs, remote head keys, and push-to-start smart fobs, and we sync remotes for locking, unlocking, and trunk release. If your fob still works but the buttons are cracked or the case is falling apart, we can often repair or re-shell it instead of selling you a whole new unit. We also fit quality aftermarket fobs alongside dealer parts, so you usually have a lower-cost option. Either way, we tell you which route makes sense before you spend a dime. If your remote has started acting up, our guide on what to check when a key fob stops working is a good first read.
Transponder and Chip Keys
Since the late 1990s, most vehicles use a transponder, a tiny chip in the key that the car must recognize before it will start. When that chip is missing or unprogrammed, the engine simply will not turn over, even when the metal blade fits the lock. We cut the blade and program the transponder to your specific car, so the key both unlocks the door and starts the engine. Moreover, we handle the encrypted, rolling-code systems on many newer models, which the copy kiosks at the store cannot touch. To see how this compares with the dealer, our guide on transponder keys versus traditional keys breaks it down.
Car Keys by Make: Modern Systems We Program
Every automaker locks down its keys a little differently, and knowing the system saves you a trip to the dealer. Since the early 2000s, nearly every car ties its key to an immobilizer, so the chip has to match the vehicle before the engine will crank. Here is how we handle the brands we see most around Northwest Indiana, all on modern vehicles.
Ford and Lincoln run the PATS immobilizer, which Ford also calls SecuriLock, and newer models add Intelligent Access proximity fobs for push-button start. We cut the blade, flash the transponder, and pair the remote, so lock, unlock, and start all work together. GM vehicles, meaning Chevrolet, GMC, Buick, and Cadillac, moved through Passlock and PK3 transponders into today’s keyless-access fobs, and we program each generation to the car.
On the Mopar side, Chrysler, Dodge, Jeep, and Ram rely on the Sentry Key immobilizer, the all-in-one FOBIK fob-key, and Keyless Enter-N-Go proximity systems, and we build and register keys for every one of them. Toyota and Lexus pair either a chipped key or a Smart Key proximity fob to the vehicle, while Honda and Acura lean on their HISS immobilizer and Smart Entry push-to-start, and we handle both makes at your location.
The import lineup rounds things out. Nissan and Infiniti use NATS security with the Intelligent Key for keyless start, whereas Hyundai and Kia blend immobilizer chips with proximity smart keys. Finally, Subaru, Mazda, and Mitsubishi each run their own immobilizer and keyless setups. Whatever badge sits on the hood, we match the exact chip and fob your car expects and program it right there in your driveway.
Ignition Keys and Broken Key Repair
Car keys and ignitions often fail together. If a worn key snaps off in the ignition or the door, we extract the broken piece and cut you a clean replacement on the spot. We also make keys when the ignition itself is worn, and we can match a new cylinder to your existing key, so you still carry one key for everything. For a deeper look at ignition trouble and cylinder work, our car lockout and ignition service covers those repairs in detail.
Car Key FAQ
Can you make a car key if I lost all of them?
Yes. We confirm your make, model, and year, then generate and program a brand-new key from the vehicle itself, even when there is no original left to copy. Most all-keys-lost jobs are done on-site in a single visit.
Do you program key fobs and push-to-start remotes?
We do. We supply and program key fobs, remote head keys, and push-to-start smart fobs, and we sync the lock, unlock, and trunk functions. We fit quality aftermarket fobs as well as dealer parts, so you usually have a lower-cost choice.
How long does it take to get a new car key?
We usually reach you within 10 to 15 minutes anywhere in our Northwest Indiana service area, and most cut-and-program jobs finish on the spot. Timing depends on the make and whether the key is mechanical, transponder, or a smart fob.
Are aftermarket key fobs as reliable as dealer fobs?
Quality aftermarket fobs work well for most vehicles and cost noticeably less. We tell you honestly when a car really needs a dealer part, so you never pay for more than the job requires.
Which car makes can you cut and program keys for?
We handle most domestic and import cars, trucks, and SUVs. The fastest way to be sure is to call (219) 342-5595 with your make, model, and year, and we will confirm we can cover your vehicle before we head out.
Last updated: 07/27/2026