Batteries Plus does not program key fobs—they replace batteries in them

Batteries Plus Bulbs sells and installs replacement batteries for key fobs, but they do not reprogram them. If your key fob stops working, the store can swap out the battery inside, which fixes most problems. If the fob still does not work after a new battery, the issue is usually with the fob itself or your car's receiver, not something the store can repair.

Key fob programming—the process that links a fob to your specific vehicle—requires either a dealership or a professional locksmith with the right equipment. Batteries Plus staff are trained to handle battery replacement only, which is a straightforward swap that takes a few minutes.

Key Takeaways

  • Batteries Plus replaces key fob batteries but does not reprogram fobs to work with your vehicle.
  • A dead battery is the most common reason a key fob stops working, and Batteries Plus can fix that on the spot.
  • If your fob still does not work after a new battery, you will need a dealership or locksmith to diagnose the real problem.
  • Dealerships charge more for programming but have direct access to your vehicle's system; locksmiths are usually cheaper and faster.

What Batteries Plus can do for your key fob

When you bring a key fob to Batteries Plus, the staff will open it, identify the battery type, and install a fresh one. The store stocks common fob batteries like CR2032, CR2025, and CR2016 in multiple brands. The whole process takes five to ten minutes, and you walk out with a working fob in most cases.

The store can also test whether the new battery fixed the problem before you leave. If the fob lights up or the buttons respond, the battery was the culprit. If nothing changes, the fob itself may be damaged, or your car's receiver may have failed.

When you need a dealership or locksmith instead

Key fob programming is the step that teaches your fob to communicate with your specific car. This requires access to your vehicle's onboard computer and specialized equipment that only dealerships and professional locksmiths have. Batteries Plus does not stock this equipment and does not train staff to do this work.

If your fob is physically broken—cracked casing, water damage, or unresponsive buttons—Batteries Plus cannot repair it. You would need to buy a replacement fob and have it programmed. A dealership can usually do both, though at a higher cost. A locksmith can often program a fob you buy elsewhere, which may save you money.

How to tell if your fob needs a battery or programming

Start by replacing the battery yourself or having Batteries Plus do it. This is the cheapest and fastest test. Open the fob (most have a small slot or button on the side), note the battery type printed inside, and swap it for a new one of the same size. If the fob works after that, you are done.

If a new battery does not fix it, the problem is not a dead cell. Your fob may have water damage, a broken circuit board, or a faulty transmitter. Your car's receiver may also be broken, which would require a dealership visit to diagnose. In either case, Batteries Plus cannot help further, and you will need to contact your car's manufacturer or a locksmith.

Cost and timing at Batteries Plus versus other options

A battery replacement at Batteries Plus usually costs between three and eight dollars, depending on the battery type. Installation is free. You can walk in without an appointment at most locations, and the job is done in minutes.

Programming a new fob at a dealership typically costs fifty to one hundred fifty dollars, plus the cost of the fob itself (usually one hundred to three hundred dollars). A locksmith usually charges thirty to one hundred dollars for programming alone. Both options require an appointment and may take a few days. If you buy a fob online and bring it to a locksmith, you may pay only for programming, which is the cheapest route if your fob is broken beyond repair.

What to bring when you visit Batteries Plus

Bring your key fob and your car keys. The staff will open the fob to see what battery it uses. You do not need your vehicle or any paperwork—battery replacement is a straightforward swap that does not require proof of ownership.

If you are not sure what battery type your fob uses, the staff can figure it out by opening it. If you want to replace the battery yourself at home, ask the staff to tell you the battery type and size, and they can sell you a replacement without installing it.

Frequently Asked Questions

Can Batteries Plus reprogram my key fob if I lost one?

No. Batteries Plus replaces batteries only. If you lost a fob, you need a dealership or locksmith to program a replacement fob to your car. The dealership has your vehicle's records and can do this directly. A locksmith can also program a new fob but may charge a service fee to access your car's system.

My key fob battery is dead, but I only have one fob. Can I still drive my car?

Yes. A dead fob battery does not disable your car. You can unlock and start your car with the physical key inside the fob (most fobs have a hidden key blade). Get the battery replaced at Batteries Plus or anywhere else when you have time. This is not an emergency.

What if my fob worked after Batteries Plus replaced the battery, but it stopped working again a week later?

The new battery may be defective, or the fob may have a deeper problem. Return to Batteries Plus and ask them to test the battery and fob again. If the battery tests good but the fob still does not work, the fob's circuit board or transmitter is likely broken, and you will need a replacement fob and programming from a dealership or locksmith.

Is it cheaper to buy a key fob online and have Batteries Plus install the battery?

Batteries Plus will install a battery in a fob you bring in, but they will not program it to your car. You would still need a dealership or locksmith for programming. Buying a fob online and paying for programming separately may or may not be cheaper than buying a fob directly from your dealership—compare prices before you decide.