2023 Hyundai Tucson Key Fob Guide (US): Types, Batteries, Costs & Programming

The 2023 Hyundai Tucson (US) commonly uses a proximity “Smart Key” remote for push-button start trims, while some trims may use a traditional flip key remote with an immobilizer transponder. Replacement and programming requirements vary by trim level, ignition type (push-button vs. turn-key), and the exact part/FCC ID on the back of the remote. Consumers generally find the safest approach is to match the original remote’s FCC ID and frequency, then confirm compatibility by VIN before purchasing. Battery replacement is usually simple, but programming a replacement fob typically requires specialized equipment.

2 Key Types
$200-$600 Dealer Range
$30-$200 Aftermarket Range

Compatible Key Fob Types

The following key types are typically compatible with the 2023 Hyundai Tucson. Compatibility varies by trim and options.

Proximity Smart Key (Push-Button Start)

A proximity remote (often called a Smart Key) that allows keyless entry and push-button start when the fob is nearby. This is the most common setup on higher Tucson trims and packages with push-button ignition.

Features

  • Passive keyless entry (touch/approach unlock on equipped trims)
  • Push-button start/stop authorization
  • Panic alarm (most configurations)

Buttons

lockunlockpanicrear hatch

Battery

CR2032

3-5 years typical lifespan

Dealer OEM $250-$550 Programming included
Aftermarket $60-$200 Programming separate

Programming

🏢 Dealer Required

Programming typically requires an automotive locksmith or dealer with Hyundai-capable diagnostic/programming tools. Many Tucson Smart Keys cannot be fully programmed DIY; some shops require all existing keys/fobs present during programming. If all keys are lost, additional steps (and towing in some cases) may be required to register new fobs to the vehicle.

⚠️ Common Issues

  • Wrong FCC ID/part number purchased (remote won’t program or functions won’t match)
  • CR2032 battery weak causing intermittent detection or reduced range
  • Water damage or cracked shell leading to button failure

Flip Key Remote with Transponder (Turn-Key Ignition on some trims)

A combined remote and folding mechanical key blade. It includes an immobilizer transponder chip that must be programmed to start the vehicle, plus remote buttons for locks and (on some versions) the rear hatch/panic.

Features

  • Remote lock/unlock (typical)
  • Immobilizer transponder for anti-theft start authorization
  • Folding (flip) mechanical key blade

Buttons

lockunlockpanic

Battery

CR2032

3-5 years typical lifespan

Dealer OEM $180-$450 Programming included
Aftermarket $30-$120 Programming separate

Programming

🏢 Dealer Required

The remote portion and the transponder chip may require programming. Many consumers find that even if the remote buttons can be synced, the immobilizer transponder still must be registered with the vehicle using professional tools. The key blade also must be cut to match the vehicle’s lock (typically by code or by duplicating an existing key).

⚠️ Common Issues

  • Key blade cut incorrectly or wrong keyway profile
  • Aftermarket shell/board mismatch causing poor button response
  • Transponder not programmed (engine cranks but won’t start, or security light remains on)

Cost Comparison: Your Options

🏢

Dealership

$200-$600
  • ✓ OEM quality guaranteed
  • ✓ Programming included
  • ✓ Warranty coverage
  • ✗ Higher cost
  • ✗ May require appointment

Best for: Warranty coverage, guaranteed compatibility

🔧

Locksmith

$120-$350
  • ✓ Often same-day service
  • ✓ Mobile options available
  • ✓ Programming included
  • ✓ Often OEM parts
  • △ Verify credentials

Best for: Speed, convenience, moderate savings

📦

Aftermarket Online

$30-$200
  • ✓ Lowest cost option
  • ✓ Wide selection
  • ✗ Programming not included
  • ✗ Compatibility varies
  • △ Check return policy

Best for: DIY-capable owners, budget-conscious

Prices vary by trim (Smart Key vs flip key), number of keys being added, all-keys-lost situations, and whether towing is needed. Dealers typically charge more but may provide OEM parts and warranty support; locksmiths often cost less and may be more convenient. Aftermarket fobs can reduce parts cost, but programming and compatibility risk are higher—consumers generally find matching FCC ID and buying from sellers with strong return policies reduces risk.

🛒 Buyer's Checklist

Before purchasing a replacement key fob for your 2023 Hyundai Tucson, verify these points:

1 Match the FCC ID and/or part number from your original fob (printed on the back/inside) before buying a replacement
2 Confirm your ignition type: push-button start uses a proximity Smart Key; turn-key ignition typically uses a transponder flip key
3 Verify frequency and region (US-market remotes may differ from Canada/other markets even if they look identical)
4 Prefer OEM or high-quality aftermarket with clear return terms; avoid listings that won’t confirm compatibility by FCC ID/VIN
5 Plan for programming and blade cutting costs (if applicable) before purchasing the remote

⚠️ Common Mistakes to Avoid

✗

Buying by year/make/model only without matching FCC ID/part number (most common cause of incompatibility)

✗

Assuming a “remote sync” procedure will program the immobilizer (it often won’t)

✗

Replacing the fob battery without checking orientation/contact tabs, leading to a no-power condition

Related Model Years

Key fob compatibility often spans multiple model years. These years typically share similar key systems:

2022 2023 2024

Frequently Asked Questions

What battery does a 2023 Hyundai Tucson key fob use?

Most 2023 Hyundai Tucson remotes (Smart Key and many flip-key remotes) use a CR2032 coin-cell battery. Confirm by opening the fob carefully and checking the marking on the battery.

Can I program a 2023 Tucson key fob myself?

DIY programming is not typical for 2023 Tucson Smart Keys and many transponder keys. Options typically include programming through a Hyundai dealer or an automotive locksmith with Hyundai-capable tools; the immobilizer portion generally requires professional equipment.

Do I need to replace the whole fob if only the buttons or case are damaged?

Sometimes only the shell/case can be replaced if the circuit board and (for flip keys) the transponder components are intact. However, consumers generally find it’s important to ensure the replacement shell matches the original board layout and button positions to avoid poor fit or non-working buttons.

Need Help With a Specific Situation?

🚨 Lost All Keys What to do when you've lost your only key ➕ Get a Spare Add a backup key before emergencies 🔋 Dead Battery Replace your key fob battery ⚖️ Compare Options Full comparison of all options

Related Hyundai Models

Hyundai Santa Fe (2023) Hyundai Kona (2023)

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Last updated: 2026-01-04