OBDSTAR X300 PRO4 Key Master 5 – Full Version Auto Key Programmer

The OBDSTAR X300 PRO4 is a purpose-built immobilizer programming device developed by OBDSTAR specifically for professional locksmiths. Drawing on OBDSTAR's extensive experience in automotive immobilizer technology, the X300 PRO4 delivers early vehicle coverage, broad model compatibility, fast programming speeds, and a strong set of specialized functions. Built around an all-in-one hardware structure with fully optimized components, the device offers a more stable, responsive, and efficient user experience.

X300 PRO4 IMMO Car List 2025-06-15

X300 PRO4 MOTO IMMO List 2025-06-15

OBDSTAR X300 PRO4 – Key Highlights

• Delivers IMMO function coverage comparable to the OBDSTAR X300 DP Plus.
• Receives frequent software updates every 2 to 3 days to maintain current vehicle coverage.
• Includes one year of free online updates. Once the update period expires, the device remains fully functional — it will not be locked or restricted in any way.
• Highly competitive feature set with proven advantages within the automotive key programming industry.
• Supports select 2019 and 2020 vehicle models, including GM, Mazda, Renault, and Ford.
• Introduces a new built-in Help function for applicable models, with research and development content continuing to be updated.

Please Note:

• Device registration is required before first use.
• Certain PIN code retrievals require purchasing credits through the OBDSTAR App, while others may require the use of a separate compatible tool.
• The device interface is available in English only and does not support language changes.

OBDSTAR X300 PRO4 – Function List

• Key Programming
• Key Erasing
• Remote Programming
• Read Number of Keys
• PIN Code Reading
• EEPROM Chip Read/Write
• OBD2 Diagnostics

OBDSTAR X300 PRO4 – Latest Update Highlights

GM Group (Requires CANFD Adapter)

• Buick: Envision 2021 Proximity
• Chevrolet: Trax/Tracker 2020 Blade & Proximity, Tahoe 2021 Proximity, Silverado 2021 Proximity, Suburban 2021 Proximity
• Cadillac: CT4 2021 Proximity, CT5 2020 Proximity, Escalade 2021 Proximity
• GMC: Denali 2021 Proximity, Sierra 2021 Proximity, Yukon 2021 Proximity

Ford / Lincoln / Mustang – Major IMMO Upgrade (Requires P002 Adapter & Ford Cable) ALK alarm active support — no need to repeatedly disconnect and reconnect the battery.

Supported Models: Escape 2020, Escort 2018, Expedition 2020, Everest 2017, Explorer 2017, F-150 2017, F-250 2017, Focus 2018, Mustang 2017, Taurus 2017, Mondeo 2017, Fusion 2017, Ranger 2017, Aviator 2020, Continental 2016, Corsair 2020, MKC 2015, MKT 2020, MKX 2015, MKZ 2015, Nautilus 2018, Navigator 2018

Chrysler – Major IMMO Upgrade (Requires FCA Adapter) OBD pin code reading and OBD start key programming now supported.

Supported Models: Jeep Wrangler 2018–2020, Gladiator 2020, Renegade 2018–2019, Grand Cherokee 2018–2020, Compass 2019+, Ram Pickup 2020–2021, Journey 2018–2019, Durango 2018–2020, 300C 2018+, and more — all Proximity Key.

Land Rover / Jaguar – IMMO Upgrade (Requires P001 Programmer) Land Rover / Jaguar 2015–2018: OBD start key programming now supported without disassembly.

Renault – Major IMMO Upgrade (Requires Converter & P001 Programmer) OBD pin code reading now supported without disassembly.

Supported Models: Alaskan Blade 2016, Captur 2016, Clio 2016–2019, Duster 2014–2018, Kadjar Blade/Proximity 2016, Koleos Blade/Proximity 2016, Scenic Blade/Proximity 2016, Symbol 2013–2018, Trafic 2014, Tribber 2014–2018, Twingo 2014

Renault IMMO v30.95 Update (November 19, 2020): Fluence 2015–2016, Latitude 2015–2016, Megane 2015–2016, Megane Scenic 2015–2016, Zoe, Trafic 2014 All Keys Lost, Twingo 2014 All Keys Lost, Kwid Type 1 All Keys Lost, Lodgy Type 2 All Keys Lost, Logan 2013+ Type 2 All Keys Lost

OBDSTAR X300 PRO4 – Supported Vehicle Coverage

• Europe: BMW, Mercedes-Benz, Borgward, Peugeot, Citroën, DS, Dacia, Fiat, Jaguar, Lancia, Land Rover, Opel, Porsche, Renault, Smart, Volvo, Iveco, VW / Audi / Skoda / Seat
• Japan: Honda, Isuzu, Mazda, Mitsubishi, Nissan, Subaru, Suzuki, Toyota, Lexus
• Korea: Hyundai, KIA, SsangYong
• USA: Ford, Chrysler, GM
• China: Baic, Besturn, Bisu, Brilliance, BYD, Changan, Changhe, Chery, Cowin, DFFengshen, DFFG, Dfliuzhou, Enranger, Foton, Geely, Greatwall, Hafei, Hanteng, Hawtai, Himiko, Hongqi, Huanghai, JAC, Jiabao, JMC, Lifan, Lufeng, Luxgen, Maxus, Qnlotus, Qoros, Roewe, SGMW, SWN, SoUEAST, TJFAW, Traum, Trumpchi, Xenia, Yema, ZD, Zhongxing, Zotye, Changfeng

OBDSTAR X300 PRO4 – Full Software Brand List

OBDSTAR X300 DP Plus vs. X300 PRO4 – Full Comparison

Software Functions

Hardware Specifications

OBDSTAR X300 Pro4 Overview

① Power/ Lock
② Main Cable Port
③ Charging Port
④ TYPE-C Interface
⑤ USB Interface
⑥ TF Card Slot
⑦ Touchscreen/ Display Screen
⑧ Speaker
⑨ Serial Number Sticker

How to Register, Activate & Update

Power On Press and hold the power button for 5 seconds to turn on the device.

Device Registration & Activation From the main screen, navigate to: VCI Function → User Information → Register — then complete the required registration fields to activate the device.

OBDSTAR X300 PRO4 – Technical Specifications