Old Jeeps are the friendliest key job in Hood County and the one where the most people arrive with wrong information. The three generations in this article have three different ignitions, and a couple of them barely have door locks at all. Call or text (817) 214-2934 with the year and we will tell you which set of rules applies to yours.
Quick Answer
As of September 2026, a key for a CJ (1976–1986), YJ (1987–1995) or TJ (1997–2006) is mechanical work, not electronics work, on the overwhelming majority of these trucks. Cutting a key to a cylinder that still works runs $75–$125; originating a key with nothing working runs $100–$300; and an ignition lock cylinder or switch runs $150–$350 including a key cut to the new part. The two things that trip people up: the CJ's ignition is in the dash, not the steering column, and a minority of late TJ builds carry Chrysler's Sentry Key transponder immobilizer while most do not — so do not assume from the model year. Check the key head and the instrument cluster, or send us a photograph and we will tell you.
Three Generations, Three Different Ignitions
This is the part worth getting right before you call anyone, because it determines what the job even is.
CJ, 1976–1986 (CJ-5, CJ-7, CJ-8 Scrambler). AMC-era trucks with the ignition switch mounted in the dash panel rather than in the steering column. That single difference changes the work: there is no column lock to seize, no steering lock pin to jam, and access is generally from behind or under the dash rather than by tearing a column apart. The keys are simple double-sided wafer keys with no electronics whatsoever. If you have a CJ with a no-start that feels electrical, the dash switch is a far more likely culprit than anything about the key.
YJ, 1987–1995. The square-headlight Wrangler, and the first of the three built under Chrysler. The ignition moves to the steering column, which brings the familiar column lock behaviour: the steering can lock, the key can refuse to turn under wheel load, and the lock cylinder wears where the column collar meets it. Still purely mechanical keys — no transponder, no chip, no programming.
TJ, 1997–2006. Round headlights and coil springs, still a column ignition, and still overwhelmingly a mechanical key. This is where the confusion lives: some late-build and optioned TJs carry Chrysler's Sentry Key immobilizer system and most do not. People read a single forum post about a Wrangler needing a chipped key and assume every TJ does. It is not a safe assumption in either direction, which is why we check rather than guess.
How to check your own TJ in thirty seconds: look at the instrument cluster when you first turn the key on, and watch for a security or immobilizer telltale that illuminates and then goes out. Then look at the head of your key — a transponder key has a thicker plastic head housing a chip, while a plain mechanical key head is thin and hollow. A photograph of the key head and the cluster tells us what we need. It is also worth checking the difference between a transponder key, a smart key and a plain fob if you have never had to care before.
What This Costs in Granbury
| Job | Typical Granbury range (September 2026) | Notes |
|---|---|---|
| Cut a key to a cylinder that still works | $75–$125 | CJ, YJ, and most TJs |
| Duplicate a working key | $75–$125 | Do it the same visit for a spare |
| Originate a key with nothing working | $100–$300 | Cylinder decoded, key cut and tested |
| Ignition lock cylinder or switch replacement | $150–$350 | Includes a key cut to the new part |
| Broken key extracted from a lock or ignition | Low end of our $75–$350 range | Quoted once we see the break |
| Door, tailgate and glovebox locks keyed to match | Quoted per vehicle | Cheaper bundled into a visit already booked |
| Vehicle unlocked, keys visible inside | From $50–$75 | See car lockout service |
| Late TJ with a Sentry Key transponder | $80–$350 | Standard programming pricing applies |
| Mobile service inside our 25-mile radius | Included in the quote | No separate trip or call-out fee |
Those bands are the same ones published across this site, including on our Jeep key replacement page and our ignition repair service page. Multi-lock work is quoted per vehicle because a hardtop TJ with four cylinders and a doorless CJ with one are genuinely different jobs.
The Lockout Conversation Nobody Else Will Have With You
Here is something we tell Jeep owners on the phone, for free, that costs us the call.
If your soft-top Jeep has the windows zipped and your keys are visible inside, you may not need a locksmith. A soft top is fabric and a zip. Unzipping a rear or side window, reaching in and retrieving your keys is a legitimate route into your own vehicle, and if you can do that safely without cutting anything, you should — no charge from anyone.
The corollary is the honest one: a soft-top Jeep is not a secure vehicle and no lock changes that. The door locks on a YJ or TJ with a soft top are a convenience against casual hands, not protection. Anybody willing to use a blade is through the top in seconds. That is not a criticism of the design, it is just what an open vehicle is, and it is why the sensible security measures on an old Jeep are elsewhere: never leave anything in it, take the stereo face if it has one, a hidden battery disconnect or ignition cut-off if it lives outside, and a visible steering or wheel lock. The National Insurance Crime Bureau publishes owner resources on documentation and theft prevention, and photographs plus the VIN filed somewhere other than the glovebox are the part most owners skip.
Where a lockout does matter on these trucks is a hardtop TJ with the doors on and the windows up. Then it is a normal unlock, from $50–$75, and while we are there we would rather originate you a key than open the door and leave.
Doors That Are Not Always There
An oddity of the category that creates real confusion when you buy one used.
Wranglers and CJs are designed to have their doors removed, and thousands of them have spent years with half-doors, no doors, or doors from another truck entirely. Which means:
- Your door lock cylinders may not be original to the vehicle, or may not exist. A truck with a swapped door commonly has a door key that matches nothing else on it.
- Cylinders that have lived outdoors seize. A door lock that has been rained into and dusted for twenty Texas summers is a good candidate for service rather than a new key.
- The tailgate and glovebox are often the forgotten cylinders. Owners who ask us to bring "everything onto one key" frequently do not remember the tailgate has a lock until we point at it.
- A key that works the ignition and nothing else is completely normal here and is not a sign anything is wrong.
Bringing whatever cylinders you actually have onto a single key is the most-requested job we get on these trucks after lost keys. It is quoted per vehicle based on how many cylinders exist and what condition they are in.
Why These Ignitions Fail, and It Is Usually Not the Key
Sorted by how often we find it in Hood County.
A worn key. The cheapest and most common. These keys are thin, double-sided, and have been in pockets and on rings with everything else for decades. As the blade wears, wafers stop lifting to the right heights and the key starts needing a jiggle. If yours worked last year and needs coaxing now, the fix is very likely a fresh key cut to the original depths at $75–$125, not a lock.
Steering under load on a YJ or TJ. Same physics as any column-lock vehicle: if the front wheels are turned against a curb, a rut, or a caliche berm, the steering lock pin is loaded and the key cannot rotate. Rock the steering wheel gently left and right with light turning pressure on the key. This is not a fault, and it is the single most common "my Jeep key won't turn" call we get.
Water and grit in the column. Off-road use on Brazos River crossings, low-water bridges, and dusty ranch tracks pushes both water and fine dust into places a commuter car never sees. On an open-top truck, rain lands in the cabin. Corroded wafers and gritty cylinders follow.
A failed ignition switch, not the lock. Distinguish carefully: if the key turns normally and you get nothing, intermittent power, or accessories but no crank, the lock is fine and the electrical switch is not. On a CJ that switch is the dash unit. On a YJ or TJ it is the column assembly behind the lock cylinder.
A broken key inside the cylinder. Do not fish for it with a screwdriver — the fragment gets pushed deeper past the wafers and the extraction gets harder and more expensive.
Something that is not the key at all. A dead battery, a bad ground on a forty-year-old chassis, a neutral safety or clutch interlock, or a starter relay all present as "the key does nothing." A new key changes none of them, and we would rather tell you that while we are standing there than sell you one.
If Yours Is a Late TJ With a Transponder
Small group, but worth its own section so nobody gets a surprise.
If your TJ does carry Chrysler's Sentry Key system, the job gains a step: the replacement key has to be paired to the vehicle, not just cut. Practically:
- With one working key in hand, adding a second is routine on-site work at standard programming pricing, $80–$350.
- With no working key at all, it is a longer job that requires reading the immobilizer side rather than just the lock. It is still usually mobile work, and our Jeep Wrangler all-keys-lost guide walks through what that looks like on the Wrangler platform.
- The spare key rule matters more here than anywhere. On a purely mechanical CJ or YJ, having no spare costs you a $100–$300 origination. On a chipped truck, having no spare turns a routine add into the longest job in the category.
Background on how the chip side works is in our transponder key programming guide — the principles are the same across makes even though the procedures differ.
Proof of Ownership
We ask on every vehicle, before starting.
Old Jeeps are desirable, easy to load, and frequently bought and sold with paperwork in progress. Locksmiths working in Texas are regulated through the Texas Department of Public Safety Private Security Program, and verifying ownership is part of doing this properly. A title, registration, insurance card, bill of sale or dealer paperwork all work, and the Texas Department of Motor Vehicles is where the record lives if you need to confirm what you hold.
If you bought the truck three weeks ago from a private seller and the title is still in transit, say so on the phone. We can normally work with a bill of sale plus matching identification — we cannot work with nothing.
What We Need Before We Come Out
Photographs answer this faster than any description. Text these to (817) 214-2934:
- Year and model — CJ, YJ or TJ, and the year if you know it.
- A photograph of the ignition as it sits: dash-mounted on a CJ, column on a YJ or TJ.
- A photograph of every key you have, both faces, heads visible. Head thickness tells us about a chip; blade wear is visible in a photo.
- The instrument cluster with the key on, if you are checking for a security telltale on a TJ.
- Which locks exist and which still work — ignition, doors if fitted, tailgate, glovebox.
- What happens when you turn the key: nothing, clicks, cranks and dies, turns freely, will not rotate at all.
- Where the truck is, and whether the ground is passable. On a wet week in Hood County that decides whether the van comes to the truck or the truck comes to the gate.
How the Visit Runs
We identify the generation first, because the CJ and the Wrangler are different vehicles wearing a similar shape.
If the key is simply worn, a fresh one gets cut to the original depths and tested — often the whole visit. If nothing works, the cylinder comes out and gets decoded, which is where the quote firms to the $100–$300 band. If the ignition assembly itself is the fault, we show you what we found before replacing anything.
Then it gets tested properly: key in and out repeatedly, the engine started and shut down more than once, and on a YJ or TJ the steering lock engaged and released with the wheels turned, not just straight ahead. A lock that works on a level driveway and jams in a rut has not been tested.
Before we go, cut a spare. It is $75–$125 while the van is already there, against $100–$300 to originate one on the day you needed to be somewhere.
Frequently Asked Questions
Do Jeep CJ, YJ and TJ keys have chips in them? CJ (1976–1986) and YJ (1987–1995) keys are purely mechanical with no chip at all. Most TJs (1997–2006) are the same, but a minority of late-build and optioned trucks carry Chrysler's Sentry Key immobilizer. Do not assume from the model year — check for a security telltale in the cluster and look at the thickness of your key head, or send us a photograph.
Where is the ignition switch on a Jeep CJ? In the dash panel, not the steering column. That is the single biggest difference between a CJ and a YJ or TJ, and it means a CJ has no column lock to seize and no steering lock pin to jam. It also means a CJ no-start that feels electrical points at the dash switch rather than anything to do with the key.
My Jeep YJ key won't turn in the ignition. What now? Almost always the steering lock pin under load, because the front wheels are turned against a curb, a rut or a berm. Rock the steering wheel gently left and right while applying light turning pressure to the key. Never force it with pliers — that is how a thin double-sided key snaps off inside the cylinder.
How much does a Jeep TJ ignition cylinder replacement cost in Granbury? $150–$350, including cutting a key to the new part. If the real problem is only a worn key, a fresh key cut to the existing cylinder is $75–$125, which is why we diagnose before quoting a part. A key originated with nothing working sits at $100–$300.
I am locked out of my soft-top Jeep. Do I need a locksmith? Possibly not, and we will say so on the phone. If the keys are visible inside and you can unzip a window and reach them without cutting anything, do that — nobody should charge you for it. If it is a hardtop with the doors on and the windows up, a standard unlock starts at $50–$75 and we would rather originate a key while we are there.
Can you put my Jeep's doors, tailgate and ignition on one key? Often yes, and it is the most requested job on these trucks after lost keys. Be aware that swapped or removed doors mean the cylinders you have may not be original to the vehicle, and a key that works the ignition and nothing else is completely normal. It is quoted per vehicle on cylinder count and condition.
Are old Jeep door locks worth anything as security? Honestly, no. A soft top is fabric and a zip, so the locks are a convenience against casual hands rather than protection. The measures that matter on an open vehicle are leaving nothing inside, a hidden battery disconnect or ignition cut-off, a visible steering or wheel lock, and having the VIN and photographs filed somewhere other than the glovebox.
Do you come out to the Jeep, or does it need towing? We come to you, anywhere inside 25 miles of Granbury with no separate trip fee — Acton, DeCordova, Pecan Plantation, Tolar, Lipan, Cresson, Nemo, Bluff Dale, Glen Rose and out to the county lines. A truck that will not start is exactly the case mobile service exists for; tell us whether the ground will take a van.
Get the Right Answer for Your Generation
Send a photograph of the ignition and your keys with the year, and you will get a real answer instead of a range. Call or text (817) 214-2934, weekdays 8:00 AM to 7:00 PM, Saturdays 8:00 AM to 5:00 PM, with 24/7 emergency availability. You can also request service through our contact page, start at our Jeep key replacement page, or read the Wrangler all-keys-lost walkthrough if you are already down to zero keys.
Sources
- Texas Department of Public Safety — Private Security Program
- Texas Department of Motor Vehicles — titles and registration
- National Insurance Crime Bureau — vehicle theft prevention resources
- National Highway Traffic Safety Administration — Federal Motor Vehicle Safety Standards
- National Automotive Service Task Force — Vehicle Security Professional Program
- Associated Locksmiths of America