Fiat Key Fob Replacement: Cost, Options, and Programming
A Fiat key fob replacement typically costs about $150-$350 for a Fiat 500, 500L or 500X flip key and $250-$450 for a proximity fob in 2026, cut and programmed. Stellantis (Chrysler, Dodge, Jeep, Ram) dealers and automotive locksmiths both handle them. Most Fiat flip keys use a CR2032 battery, so try a new one first.
Fiat has a small US lineup, and most of its standalone stores have closed, which leaves many owners unsure where to get a key. In practice, Fiat service and parts now run through Chrysler, Dodge, Jeep and Ram dealers, and locksmiths that work on Stellantis vehicles can usually make Fiat keys too.
Fiat Key Types by Model
| Model (US) | Typical years | Key type | Common battery |
|---|---|---|---|
| Fiat 500 / 500c / Abarth | 2012-2019 | Flip key with 3-button remote | Usually CR2032 |
| Fiat 500e (first generation) | 2013-2019 | Flip key similar to the 500 | Usually CR2032 |
| Fiat 500L | 2014-2020 | Flip key | Usually CR2032 |
| Fiat 500X | 2016-2023 | Flip key, or proximity fob with push-button start on some trims | Usually CR2032 |
| Fiat 124 Spider | 2017-2020 | Mazda MX-5-based key and smart key | Check the cell you remove |
| Fiat 500e (new generation) | 2024 onward | Proximity smart key | Check the cell you remove |
The 124 Spider is the odd one out: it was built alongside the Mazda MX-5, and its key system follows Mazda practice rather than other Fiats. Owners should read how to program a Mazda key fob for how that system is handled.
Start With the Battery
On the 500, 500L and 500X flip keys, the remote section separates from the blade housing with a small flat tool at the seam; inside is usually a CR2032. Match the cell you remove and install it with the same side up. Our CR2032 battery replacement guide covers the general process, and the key fob battery size chart lists other brands for comparison. If the buttons still fail with a fresh battery, see the key fob not working troubleshooting guide.
Fiat Key Fob Replacement Cost by Option
| Option | Best for | Programming | Trade-off |
|---|---|---|---|
| Stellantis dealer (Chrysler, Dodge, Jeep, Ram) | Newer 500e, 500X proximity fobs, warranty cars | Included, uses the dealer system | Highest price; part may need ordering |
| Automotive locksmith | 500, 500L and 500X flip keys, all keys lost | Included, usually needs the PIN | Coverage of the newest 500e varies |
| Aftermarket flip key online | Budget spares | Locksmith required | Fit and button feel vary |
| Flip key shell | Broken hinge, cracked case, worn buttons | Not needed | Transfer chip and board carefully |
Typical 2026 ranges: dealer flip key about $200-$350 programmed, dealer proximity fob about $300-$450, locksmith about $150-$300. A replacement shell for a Fiat 500 flip key often costs under $20. See how much a new key fob costs for other brands.
Dealer
Pros: genuine key, correct for proximity and newer models. Cons: highest price, and with few Fiat-only stores left, the nearest Stellantis dealer may need to order the key. Who: owners of the new 500e or a 500X with push-button start.
Locksmith
Pros: cheaper, mobile, and Fiat flip keys are well supported. Cons: may decline customer-supplied keys. Who: most owners of 2012-2020 Fiats.
Aftermarket
Pros: low parts cost. Cons: a used Fiat key that has already been programmed often can’t be reused, so buy new and match the part number and FCC ID. See are aftermarket key fobs any good.
How Fiat Keys Are Programmed
There is no general owner programming procedure for Fiat immobilizer keys. Dealers use the Stellantis diagnostic system; locksmiths use a programmer through the OBD2 port, normally with the vehicle’s PIN code. Programming a flip key typically takes 15-30 minutes once the blade is cut. Bring every key you have, since programming can affect keys that aren’t present.
For how OBD2 key programming works and what it costs, see how to program a key fob with an OBD2 scanner and key fob programming cost.
Fixing a Broken Fiat 500 Flip Key
The Fiat 500 flip key is known for worn button pads and loose hinges. If the remote still works when you press the contacts, a new shell is the cheapest fix. Move the circuit board, transponder chip and blade into the new case; if the blade is not transferable, the new blade must be cut to match your car. Our key fob shell replacement guide walks through the swap.
Fiat Car Key Replacement When All Keys Are Lost
- Gather registration, photo ID and VIN.
- Call a locksmith first; most can cut a Fiat blade by code and program on site.
- If going to a dealer, confirm which Stellantis store services Fiat near you and whether the car must be towed.
- Add a spare at the same visit. See lost car key replacement cost.
Fiat Flip Key Fob or Shell
Match the model (500, 500L or 500X), button count and FCC ID. For a worn case or broken hinge with working electronics, a shell is enough.
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Fiat Key Replacement Checklist
- Swap the battery (usually CR2032) first.
- Identify the model and key type.
- Decide between a new key and a shell.
- Get a locksmith quote and a Stellantis dealer quote.
- Bring all keys and proof of ownership. See how to get a spare key fob.
Frequently Asked Questions
In 2026, expect about $150-$350 for a 500, 500L or 500X flip key and $250-$450 for a proximity fob, cut and programmed.
Most Fiat 500, 500e (2013-2019), 500L and 500X flip keys use a CR2032. Match the battery you remove.
At a Chrysler, Dodge, Jeep or Ram dealer that services Fiat, or at an automotive locksmith that works on Stellantis vehicles.
Generally no. Fiat keys need a dealer system or locksmith programmer, usually with the vehicle PIN.
Yes. If the electronics work, move the board, chip and blade into a new flip key shell.