Mitsubishi Proximity Keys & Smart Keys

Shop Mitsubishi proximity keys for compatible cars, crossovers, and SUVs at Noble Key Supply. This collection includes new OEM, refurbished OEM, Paladin premium aftermarket, and standard aftermarket smart keys in multiple electronic configurations and button layouts.

Mitsubishi proximity keys can look nearly identical while using different FCC IDs, transponder chips, frequencies, circuit boards, and manufacturer part numbers. Compare every available specification with the original smart key and vehicle before ordering.

Mitsubishi Smart Key Replacements

A Mitsubishi proximity key communicates wirelessly with the vehicle’s keyless-access and immobilizer systems. When a correctly programmed key is detected, the driver may be able to unlock the doors and start the engine without inserting a traditional key into the ignition.

Depending on the vehicle, a Mitsubishi smart key may support:

• Passive door unlocking
• Push-button starting
• Remote locking and unlocking
• Panic alarm
• Power liftgate release
• Trunk release
• Other model-specific functions

The exact features depend on the vehicle and button configuration. Ordering a key with an additional button will not activate equipment that the vehicle does not have.

Mitsubishi Outlander Proximity Keys

The Mitsubishi Outlander has used several smart-key systems across different generations. Available keys may use three- or four-button layouts and different transponder technologies.

Outlander proximity keys represented in this collection may include part numbers such as:

• 8637C815
• 8637D007
• Other application-specific 8637-series numbers

Some newer Outlander keys use ID47 or HITAG 3 technology, while earlier applications may use ID46. Confirm the model year, FCC ID, chip, frequency, and original part number.

Mitsubishi Eclipse Cross Smart Keys

Mitsubishi Eclipse Cross proximity keys are available in several button configurations. Depending on the vehicle’s equipment, the key may include controls for lock, unlock, panic, and power liftgate functions.

Part numbers represented in the collection may include:

• 285E3-W600P
• 285E3-W650P
• 8637C135
• Other compatible references

Eclipse Cross applications may use ID47 or HITAG 3 transponder technology. Similar-looking keys intended for another Mitsubishi model may not be electronically compatible.

Other Mitsubishi Proximity-Key Applications

The collection may also include compatible smart keys for Mitsubishi vehicles such as:

• Lancer
• Lancer Evolution
• Outlander Sport
• Mirage
• Eclipse Cross
• Other push-to-start Mitsubishi models

Availability and coverage vary. Use the vehicle’s year, model, trim, production market, and original key specifications to identify the replacement.

Three-Button Mitsubishi Proximity Keys

Three-button Mitsubishi smart keys commonly provide lock, unlock, and panic controls. Some applications may use a different third function depending on the vehicle.

Available three-button products may be associated with part numbers such as:

• 8637A316
• 8637B153
• 8637B639
• 8637C253
• 8637C803
• 8637D007
• 285E3-W600P

Button count is only one compatibility factor. Two three-button keys may use entirely different transmitters, chips, frequencies, and programming systems.

Four-Button Mitsubishi Proximity Keys

Four-button smart keys add a vehicle-specific feature such as a power liftgate or trunk release. Available applications may include part numbers such as:

• 8637A228
• 8637A817
• 8637B424
• 8637C254
• 285E3-W650P

Match the button icons and their positions with the original key. A four-button Outlander key may not replace a four-button Eclipse Cross key, even when the housings appear similar.

Mitsubishi Proximity-Key FCC IDs

The FCC ID identifies the remote transmitter and is one of the most important specifications for choosing a Mitsubishi proximity key.

FCC IDs represented throughout the collection may include:

• OUC644M-KEY-N
• OUCGHR-M013
• OUCGHR-M015
• GHR-M013-NTB
• OUC003M
• KR5MTXN1

Compare the complete FCC ID. Small differences may indicate another frequency, circuit board, vehicle platform, or smart-key generation.

The FCC ID may be printed on the back of the original key, inside the housing, or on a product label.

IC and Circuit-Board Identifiers

Some Mitsubishi proximity-key listings include an IC number or additional board identifier. These references provide another way to distinguish between similar keys.

Examples represented in the collection may include:

• 850G-644MKEYN
• G8D-644M-KEY-N-3P
• G8D-644M-KEY-N-4T
• 850G-GHRM013
• 850G-GHRM015
• 850G-00003M
• 7812D-MTXN1

Use these numbers together with the FCC ID, part number, chip, frequency, and button layout.

ID46 Mitsubishi Smart Keys

Many Mitsubishi proximity keys use an ID46 transponder configuration. The chip must be correctly registered with the vehicle’s immobilizer before the key can authorize engine starting.

Keys associated with FCC ID OUC644M-KEY-N may use ID46 technology, depending on the specific part number and application.

An ID46 designation alone does not confirm compatibility. The remote frequency, circuit board, buttons, and vehicle system must also match.

ID47 and HITAG 3 Mitsubishi Keys

Newer Mitsubishi smart-key systems may use ID47 or HITAG 3 technology. Some listings identify the chip more specifically as HITAG 3 ID47 NCF29A1X.

These keys may be found in compatible Outlander and Eclipse Cross applications. They require programming equipment with appropriate coverage for the vehicle and immobilizer system.

Do not substitute an ID47 key for an ID46 key because the housing looks similar. The chip generation must match the vehicle.

Megamos AES Proximity Keys

Select Mitsubishi smart keys use Megamos AES transponder technology. Keys associated with FCC ID KR5MTXN1 and part numbers such as 8637C253 or 8637C254 may use this system.

Megamos AES keys have different programming requirements from Mitsubishi keys using ID46 or ID47 chips. Confirm that the programming device and current software support the exact vehicle before beginning the job.

315 MHz Mitsubishi Proximity Keys

Many Mitsubishi proximity keys in this collection operate at 315 MHz. This frequency is used by several smart-key generations, but it is not sufficient by itself to establish compatibility.

Two 315 MHz keys may have different:

• FCC IDs
• Chip types
• Circuit boards
• Button layouts
• Vehicle applications
• Manufacturer part numbers

Verify all available identifiers before cutting the emergency blade or attempting programming.

434 MHz Mitsubishi Proximity Keys

Select Mitsubishi smart keys operate at 434 MHz. These may include certain keys using FCC ID KR5MTXN1 and Megamos AES technology.

A 434 MHz proximity key will not replace a 315 MHz key, even if the cases and buttons are similar. Frequency must match the vehicle’s receiver and smart-key system.

New OEM Mitsubishi Proximity Keys

New OEM proximity keys use original-equipment components intended for their specified Mitsubishi applications. They are a suitable choice when a new factory smart key is preferred.

A new OEM key still requires programming before use. Its emergency insert blade may also require cutting.

Confirm whether the listing includes:

• Complete electronics
• Battery
• Emergency blade
• Factory logo
• Original packaging
• Any model-specific components

The included parts can vary between products.

Refurbished OEM Mitsubishi Smart Keys

Refurbished proximity keys reuse genuine OEM electronics and provide another option for professional key replacement. Available products may be offered in Grade A or Grade B condition.

Grade A keys generally show less cosmetic wear, while Grade B keys may display more visible signs of previous use. Grading primarily describes appearance and should be reviewed with the specific product listing.

A refurbished key may be:

• Cleaned and inspected
• Installed in a replacement shell
• Supplied with genuine OEM electronics
• Unlocked or reset for another vehicle
• Provided with or without an emergency blade
• Offered with or without a manufacturer logo

Confirm preparation status before programming. Some previously used keys cannot be added to another vehicle unless they have been correctly unlocked or reset.

Aftermarket Mitsubishi Proximity Keys

Aftermarket smart keys offer a cost-effective replacement for compatible Mitsubishi vehicles. A complete aftermarket key may include the housing, circuit board, transponder chip, buttons, battery, and an uncut emergency blade.

Included components vary by product. Review the listing instead of assuming every aftermarket key arrives with the same parts.

Compatibility must be confirmed using the FCC ID, part number, chip, frequency, and vehicle information.

Paladin Premium Aftermarket Keys

Select Mitsubishi proximity keys may be available from Paladin as premium aftermarket replacements. Paladin keys provide another professional replacement option for supported applications.

As with any smart key, verify the complete electronic configuration and button layout. A premium aftermarket designation does not make a key universal across Mitsubishi vehicles.

CR2032 Batteries

Many Mitsubishi proximity keys use a CR2032 lithium coin-cell battery. The battery powers the remote and proximity functions but does not replace immobilizer programming.

Symptoms of a weak battery may include:

• Reduced remote range
• Intermittent passive-entry operation
• Delayed button response
• A dashboard key-detection warning
• The need to hold the key close to the start button

Confirm the battery type and polarity before installation. If a fresh battery does not restore operation, inspect the key for damaged contacts, failed electronics, or lost programming.

Emergency Insert Blades

Most Mitsubishi proximity keys contain a removable mechanical insert blade. This blade provides manual door access when the remote battery is depleted or the vehicle’s electrical system is unavailable.

The replacement key may include an uncut blade, but this varies by product. Match the blade profile and attachment design with the original key.

The insert blade generally does not replace the proximity key’s immobilizer function. It provides mechanical access while the programmed electronics authorize starting.

Programming a Mitsubishi Proximity Key

A Mitsubishi smart key must be programmed to the vehicle before its proximity and starting functions will work. Programming requirements depend on the model, year, key system, chip type, and number of working keys.

A professional replacement process may include:

1. Confirming the vehicle and original key specifications
2. Verifying the replacement FCC ID and part number
3. Checking the chip type and frequency
4. Unlocking or resetting a refurbished key, when required
5. Registering the proximity key with the immobilizer
6. Pairing remote functions
7. Cutting the emergency insert blade
8. Testing passive entry, buttons, and engine starting

Some vehicles require security credentials, PIN information, or model-specific procedures. Confirm tool coverage before starting the job.

Adding a Spare Mitsubishi Smart Key

Adding a spare while a working proximity key remains available can reduce the difficulty and expense of a future all-keys-lost situation.

The spare must match the vehicle’s smart-key system. Do not purchase a key based only on its exterior design or button count.

After programming, test:

• Passive door entry
• Lock and unlock buttons
• Panic function
• Liftgate or trunk release
• Push-button starting
• Emergency blade operation
• Key-detection range

Mitsubishi All-Keys-Lost Situations

When every smart key is lost, a qualified automotive locksmith may be able to program a replacement using compatible diagnostic equipment. An all-keys-lost procedure may differ from adding an additional key.

The process can require immobilizer access, key registration, security data, and mechanical blade origination. Newer ID47 and Megamos AES systems may require different tools from earlier ID46 applications.

Verify that the replacement key and programming equipment support the exact vehicle before beginning service.

How to Choose the Correct Mitsubishi Proximity Key

Before ordering, verify:

1. Vehicle year, make, model, and trim
2. Push-to-start or ignition configuration
3. FCC ID
4. IC or circuit-board identifier
5. Manufacturer part number
6. Transponder-chip type
7. Operating frequency
8. Number of buttons
9. Button icons and functions
10. Emergency-blade profile
11. Battery type
12. New OEM, refurbished, or aftermarket condition
13. Programming-tool compatibility
14. Whether the key has been unlocked or reset

Checking every available specification helps reduce incorrect orders and failed programming attempts.

Shop Mitsubishi Proximity Keys at Noble Key Supply

Browse new OEM, refurbished OEM, Paladin premium aftermarket, and standard aftermarket Mitsubishi proximity keys. Noble Key Supply carries three- and four-button smart keys with application-specific FCC IDs, chip types, frequencies, and part numbers.

Compare the replacement with the original key and vehicle information to select the correct Mitsubishi smart key for the job.