Understanding Your Situation

Key fobs commonly fail after being dropped, crushed, exposed to water (rain, washer, pool), or when the internal battery contacts or circuit board are damaged. Sometimes the shell is broken but the electronics still work; other times the fob transmits weakly or not at all due to internal cracks, corrosion, or a displaced battery.

🚀 Immediate Steps to Take

  1. Confirm the car can still be accessed/started: use the mechanical emergency key inside the fob (if equipped) to unlock the driver door; if you have push-button start, hold the fob directly against/near the START/STOP button and try starting (many Kia systems can read a weak fob at close range).
  2. Inspect and stabilize the fob: check for a cracked case, loose battery, missing buttons, or rattling parts; if the battery is loose, reseat it and ensure correct polarity. If the fob got wet, remove the battery immediately and let the fob air-dry thoroughly before testing again.
  3. Try a known-good battery and basic reset: replace with a quality coin cell (match the battery type printed on the old cell), clean visible battery contacts gently with a dry cotton swab, then test lock/unlock from close range.

Your Options

Replace the coin-cell battery (first-line fix)

Cost: $5-$15 Time: Same day

Open the fob, install a new battery of the correct type, and ensure the battery clips/contacts are tight. This is most effective when the fob is intermittent or has reduced range after a drop.

âś“ Pros:
  • Fast and inexpensive
  • Often restores range and reliability
âś— Cons:
  • Won’t fix water-damaged circuit boards or broken buttons
  • Improper installation can bend contacts or crack the case

Replace the key fob shell/case (keep original electronics)

Cost: $10-$40 Time: Same day

Move the internal circuit board and battery into a new shell when the outer case, button pads, or key ring area is broken but the fob still works electronically.

âś“ Pros:
  • Cheaper than a full fob replacement
  • No programming needed if you reuse the original circuit board
âś— Cons:
  • Not a solution if the circuit board is cracked/corroded
  • Aftermarket shells may fit poorly or have mushy buttons

Professional cleaning/inspection after water exposure

Cost: $30-$120 Time: Same day / 1-3 days

A locksmith or electronics repair shop opens the fob, checks for corrosion, cleans the board (often with proper electronics cleaner/isopropyl), and verifies button and battery-contact integrity.

âś“ Pros:
  • May save the original fob and avoid reprogramming
  • Best chance of recovery after moisture exposure if done quickly
âś— Cons:
  • Not always successful if corrosion has progressed
  • Cost can approach replacement if extensive damage

Replace and program a new OEM key fob (dealer or qualified locksmith)

Cost: $250-$600 Time: Same day / 1-3 days

Purchase a new OEM transmitter and have it programmed to your 2024 Kia Forte. If your Forte uses a smart key (push-button start), programming typically requires diagnostic equipment and proof of ownership.

âś“ Pros:
  • Most reliable and fully compatible option
  • Can restore full functionality if the old fob is internally damaged
âś— Cons:
  • Higher cost
  • May require appointment, vehicle present, and ID/registration

Add a spare key now (prevent future lockouts)

Cost: $180-$450 Time: Same day / 1-3 days

If you still have one working key, get a second key/fob made and programmed before the damaged one fails completely. This reduces the risk of towing and higher all-keys-lost costs.

âś“ Pros:
  • Avoids emergencies and downtime
  • Often cheaper than an all-keys-lost situation
âś— Cons:
  • Upfront expense
  • Requires time to source and program the spare

⚠️ What to Avoid

✕ Don’t keep pressing buttons repeatedly on a wet fob—powering a wet circuit board can speed up corrosion and short damage.

✕ Don’t use a high-heat source (hair dryer on hot, oven, microwave) to dry the fob; excessive heat can warp the case and damage the battery or electronics.

✕ Don’t buy the cheapest “universal” or wrong-part-number fob online and assume it will program; mismatched frequency/ID style can be non-programmable for your vehicle.

⚠️ Common Mistakes to Avoid

  • Throwing away damaged key
  • Not salvaging electronics
  • Buying OEM when aftermarket works
  • Not considering case-only replacement

Frequently Asked Questions

Can I start my 2024 Kia Forte if the key fob is damaged?

Often, yes—if it’s a push-button start model and the fob is weak, holding the fob directly against/near the START/STOP button may allow the vehicle to read it. If the fob is completely dead or the chip/electronics are damaged, you may not be able to start until a working fob is available. If you have a physical key ignition, a damaged remote may still allow starting with the key blade.

If I swap the shell, will I need programming?

Usually no. If you reuse your original circuit board (the electronics) and just replace the outer case/buttons, the vehicle still recognizes the same fob identity. Programming is typically needed only when you introduce a different fob/transmitter.

How much does it cost to replace a 2024 Kia Forte key fob in the US?

A typical OEM fob replacement with programming commonly runs about $250-$600 depending on whether it’s a smart key vs. standard remote key, local labor rates, and whether you need cutting/programming for an emergency key blade.

What should I do if the fob went through the washing machine?

Remove the battery immediately, blot dry, and let it air-dry thoroughly before testing. If it still acts erratically (short range, random locking/unlocking, no response), have it professionally cleaned/inspected or replace it—water exposure can cause delayed failure from corrosion.

⏱️ Urgency Note: If this is your only working key/fob, treat it as time-sensitive: a damaged fob can fail without warning. Getting a spare made while the vehicle can still be accessed/started is usually faster and less expensive than an all-keys-lost situation (which may require towing and more involved programming).

Need Detailed Information?

Get vehicle-specific key fob compatibility, part numbers, and a complete price comparison for your 2024 Kia Forte.

View Forte Key Fob Guide →

Last updated: 2026-01-04