Chevy Silverado 1500 Push-to-Start Key & Keyless Relearn in Granbury, TX
"Key Fob Not Detected" on the driver information center is the single most-reported message we get from late-model Silverado owners in Hood County — and the fix is often far cheaper than the message implies. Call or text (817) 214-2934.
Quick Answer
Yes, a mobile automotive locksmith can program a proximity smart key and run a keyless-system relearn on a 2019–2024 Chevrolet Silverado 1500 at your Granbury location. As of August 2026, adding a spare smart fob here generally runs $150–$350, push-button smart-key service $200–$500, and keyless or module programming $120–$500 depending on scope — all quoted by VIN before dispatch. Before you spend any of that, replace the fob's coin cell; a meaningful share of these calls end there.
What the Body Control Module Actually Does With Your Fob
On a push-button Silverado 1500, there is no key cylinder in the column doing the authentication. Instead, the truck's body control module maintains a stored list of the fobs it recognizes. Antennas around the cab detect a recognized fob inside the vehicle, and only then does the START button do anything.
Two practical consequences fall out of that design.
Fobs are software entries, not just hardware. A new fob is a physical object that also has to be written into the module's list. Buying a fob online does nothing on its own — it is an unprogrammed transmitter until it is paired to your truck.
The module can be relearned. A keyless relearn rewrites which fobs the truck accepts. That is how a lost fob gets removed from service, and it is why a truck can accept a brand-new fob without any original present.
This is a different job from the engine-side computer work covered on our Duramax ECM and TCM programming page, which deals with drivetrain modules rather than the keyless system. Owners frequently conflate the two; they use different equipment and different procedures.
The Coin Cell Test — Do This First
We would rather you fix this yourself for the price of a battery than pay us for a diagnosis.
Symptom: intermittent "Key Fob Not Detected," worse in cold weather or when the fob is in a back pocket. Weak coin cell. The transmitter is running at reduced range and the antennas lose it depending on where it sits in the cab.
Symptom: the truck starts only when you hold the fob against the designated backup location on the column or console. This is the truck's designed fallback for a dead fob battery. It working is proof that the truck's keyless system is healthy. Replace the coin cell.
Symptom: one fob works perfectly, the other is unreliable. The truck is fine. The unreliable fob has a weak battery or a failing transmitter.
Symptom: both fobs stopped at the same time. Now it is worth calling. Two fobs rarely fail simultaneously; that pattern points at the truck side.
A coin cell costs a few dollars at any store on the square. Try it before anything else — and if it fixes the problem, you have learned something useful about your truck for almost nothing.
What This Work Costs in Granbury
| Service | Typical Granbury range (August 2026) | Truck drivable during? |
|---|---|---|
| Fob coin-cell replacement | Nominal, often folded into another service | Yes |
| Spare proximity smart fob added while one works | $150–$350 | Yes |
| Push-button smart key service, general | $200–$500 | Varies |
| Keyless system relearn / module programming | $120–$500 | During work, no |
| All keys lost, push-button Silverado 1500 | Quoted per truck, materially higher | No |
| Emergency blade cut, door access only | Low end of the range | Yes |
| On-site diagnosis of a no-detect condition | Quoted per truck | — |
The dealer alternative starts higher and requires the truck at their service drive. Mobile pricing here typically runs 40–60% below dealer for equivalent work, and the gap is widest when the truck cannot be driven — a tow out of Hood County is a line item before the dealer has touched anything. The smart key programming comparison covers this case directly.
When It Is Genuinely the Truck
Some no-detect conditions are not the fob at all, and it is worth knowing what those look like.
Both fobs stopped working at once. As above — the common cause is on the truck side, not two simultaneous battery failures.
The condition appeared right after other electrical work. A battery replacement, a jump start, an accessory install, or aftermarket remote start can all leave the keyless system unhappy. Say so when you call; it changes what we check first.
Water intrusion. A fob that got wet is a fob problem. A truck that sat through a hard storm with a compromised seal is potentially a module problem — that failure mode is covered in our water-damaged fob and BCM guide.
Intermittent no-detect only in one seating position. Antenna or wiring related rather than fob related.
The truck is completely dead. Check the 12-volt battery first. A flat battery on a push-button truck presents as a total keyless failure and fools almost everybody.
Why We Come to the Truck
A push-button truck that will not detect a fob is, functionally, a parked truck. That is a manageable problem in a driveway and a serious one anywhere else in this county.
Hood County call locations are not parking lots. They are ramps on Lake Granbury, gates off FM roads, hay fields near Tolar, job sites around Cresson and Acton, and turnouts on 377. Several of those have no street number at all, and a fair number have a trailer attached to the truck that will not move without it.
Mobile service exists for exactly that geography. What actually delays an arrival here is rural addressing rather than distance — send a dropped map pin, not a description. Realistic drive expectations by community are in the Hood County response-time guide, and if this is happening after dark, see emergency car key replacement in Granbury.
What We Need Before Dispatch
Proof of ownership. Title, registration, or insurance in your name plus a matching photo ID. Programming a fob to a truck means enabling someone to start it, so this gets verified every time.
The VIN. Driver's door jamb or the base of the windshield on the driver's side.
Model year and trim. Speak the trim as words when you call — say "fifteen hundred," not the numeral — phone audio mangles digits more often than people expect.
How many fobs exist and what each one does. "One works, one does not" and "neither works" are different jobs.
Any recent electrical work. Battery, jump start, accessory install, remote start.
Whether a fob was lost or stolen. If a fob is gone for good, a relearn removes it from the accepted list so it can never start the truck again. That is usually the goal.
The Spare Argument, Briefly
Adding a second fob while the first one works is a scheduled appointment, costs materially less than originating from nothing, and leaves the truck drivable throughout. Losing the only fob on a push-button truck is the expensive version of the same event, and it happens on a day you did not pick.
Every Silverado 1500 we service that is running on one fob is a future all-keys-lost call with an unset date. Options are on our key fob replacement page and the push-to-start key page.
The Honest Boundary
Two limits stated up front. First, the newest Silverado builds get a VIN check before we commit to a firm number, because keyless access rules shift by model year. Second, if the body control module has failed at the hardware level rather than simply lost its fob list, that is a larger repair and may belong at a dealer — we will tell you when we find it rather than billing toward a wall. Related module-level work is described on our immobilizer programming page, and the all-makes GM decision guide is here.
About Fobs Bought Online
This comes up often enough to deserve its own section, because it is where owners most commonly lose money before calling anyone.
A proximity fob purchased from an online marketplace is a transmitter in a shell. On its own it does nothing at all — it has never been introduced to your truck, and no amount of button-pressing will change that. The programming step is what turns it into a key, and that step requires the truck, the equipment, and the security access.
That is not the argument against buying one. The argument is about which ones are worth buying.
Check the part compatibility against your VIN, not against your model year. Trim and build date both matter on these trucks, and "fits 2019–2024 Silverado" on a listing is a marketing claim rather than a specification.
Understand that a non-functioning aftermarket fob is not refundable time. If you bring us a fob that turns out to be the wrong variant, we have made a trip and you still do not have a key. We will tell you honestly whether the one in your hand is usable.
Used fobs carry history. A fob previously paired to another vehicle can sometimes be reused and sometimes cannot, depending on how it was locked to that vehicle. It is worth asking before buying.
Factor the total, not the part. A cheap fob plus a programming visit frequently lands close to a supplied-and-programmed price, without the risk of the part being wrong.
If you already bought one, bring it out when we come. We would rather program the fob you own than sell you another one — and if it will not work, you will hear that reason plainly instead of a vague "it's not compatible."
Frequently Asked Questions
Can a locksmith program a Silverado 1500 smart key, or does it need a Chevy dealer? A locksmith can. Independent automotive locksmiths program GM proximity fobs and run keyless relearns routinely, with security data access through the NASTF Vehicle Security Professional program. Mobile service also avoids towing a truck that will not start.
How much does Silverado smart-key programming cost in Granbury? As of August 2026, adding a spare proximity fob generally runs $150–$350, push-button smart-key service $200–$500, and keyless or module programming $120–$500 depending on scope. Everything is quoted by VIN before dispatch.
My truck says "Key Fob Not Detected." Do I need a new fob? Often not. Replace the coin cell first — a weak battery is the most common cause by a wide margin, especially if the message is intermittent or the truck starts when you hold the fob in the backup position.
Both of my fobs quit at the same time. What does that mean? That pattern points at the truck rather than the fobs, since two batteries rarely fail together. It is worth an on-site diagnosis, and recent electrical work is a strong clue.
Can you remove a lost fob so it stops working? Yes. A keyless relearn rewrites the accepted list, which takes a lost or stolen fob permanently out of service. Tell us up front so we run that procedure.
Will you come to a ramp, a gate, or a job site? Yes. Ramps, pasture gates, lease roads, and job sites are routine calls here. Send a map pin while you still have signal.
How long does the work take? Typically 45 to 90 minutes on site depending on scope, plus drive time. Adding a spare fob while one still works is at the faster end.
Get the Truck Reading Its Key Again
If your Silverado 1500 is not detecting a fob, call or text (817) 214-2934 with the VIN, model year, how many fobs you have, and any recent electrical work. Serving Granbury, Acton, DeCordova, Pecan Plantation, Tolar, Lipan, Cresson, Nemo, Bluff Dale, Glen Rose, and 25 miles out. 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 or see Chevy key replacement in Granbury.
Sources
- National Automotive Service Task Force — Vehicle Security Professional Program
- Texas Department of Public Safety — Private Security Program
- Associated Locksmiths of America
- National Highway Traffic Safety Administration — Vehicle Theft Prevention
- National Insurance Crime Bureau
- Federal Trade Commission — How to Find a Good Auto Repair Shop