You press the button and nothing happens. A key fob not working feels like a car problem, but more often it is a small, fixable key problem — and knowing the difference can save you a trip to the dealership. Here is how Northwest Indiana drivers can sort it out.
Start With the Battery — Really
The humble coin battery inside the fob causes the majority of failures. They fade gradually, so the first symptom is usually shrinking range: you used to unlock the car from across the lot, now you have to stand beside it. Swapping the battery takes minutes, and it is always the first thing to rule out. Cold snaps off Lake Michigan are famous for finishing off a battery that was already weak.
Key Fob Not Working After a Battery Change?
If a fresh battery changes nothing, the fob may have lost its programming — it can happen after the car battery dies or is disconnected — or the fob’s internal board may be damaged from drops and pocket abuse. Worn buttons that feel mushy or need a hard press are another sign the hardware itself is failing rather than the battery.
The Hidden Key Most Drivers Forget
If you are locked out with a dead fob, check the fob itself: most models hide a mechanical blade key inside, released by a small latch. It opens the driver’s door even when the electronics are dead. Many drivers in Porter and around the Dunes area have stood stranded next to a car they could have opened in five seconds.
Reprogramming and Replacement Without the Dealer
Dealerships are not the only option for fob work. A qualified automotive locksmith can test whether the fob or the receiver is at fault, reprogram a fob that has lost its pairing, and supply and program replacements for most makes — and a mobile locksmith does it wherever the car is parked, which matters when the car will not start or unlock at all.
Fob acting up in Porter or anywhere in Northwest Indiana? Call Jacob’s Lock and Key at (219) 342-5595 — mobile service seven days a week, 7 AM to 11 PM.
Last updated: 08/18/2026