1. Introduction
This manual provides essential information for the setup, operation, and maintenance of your KEYDIY NB Series Remote Car Key. These keys are designed for use with KEYDIY programming devices such as KD-X2, KD900, URG200, and KD-MAX, offering a versatile solution for various vehicle models.

2. Setup and Compatibility
The KEYDIY NB Series Remote Car Keys are universal remotes that can be programmed to function as various car keys using compatible KEYDIY devices. Each NB series key integrates five primary functions:
- NB-ATT-36: Compatible with Peugeot, Citroen, older Honda models (pre-2013), and other brands using NB-36 default keys.
- NB-ATT-46: Compatible with Touareg, Bentley, most Renault, Fiat, and other keys utilizing PCF7946 Chips.
- NB-ATT-for Chrysler: Designed for Chrysler, Dodge, and Jeep car keys.
- NB-ETT-for GM: Suitable for newer Buick, Chevrolet, and Opel cars.
- NB-XTT-new for Honda: For 2014 and 2015 Honda car keys.
To select the correct key type, refer to the visual guide below. The keys are categorized by rows (A, B, C) and columns (01-08) representing different physical designs and internal configurations.

Compatible Programming Devices:
- KD900
- KD900+
- URG200
- KD-X2
- KD-MAX
Programming of the key must be performed by a qualified professional using one of the supported KEYDIY devices. This process typically involves generating the correct remote data for your specific vehicle and then pairing the key with the vehicle's immobilizer system.
3. Operating Instructions
Once successfully programmed, your KEYDIY NB Series Remote Car Key will function like your original car remote. It includes standard remote control (R/C) functions for locking and unlocking your vehicle. Specific button functions (e.g., trunk release, panic alarm) will depend on the vehicle model and the programmed configuration.
Ensure the key is within range of your vehicle for reliable operation. Obstructions or interference may affect signal strength.
4. Maintenance
To ensure the longevity and proper functioning of your remote car key, follow these maintenance guidelines:
- Battery Replacement: The remote key contains a small battery that will eventually need replacement. When the remote's range decreases or it stops responding, it's likely time for a new battery. Carefully open the key casing to access the circuit board and battery compartment. Note the battery type and polarity before replacing.
- Cleaning: Keep the key clean and free from dirt, dust, and moisture. Use a soft, dry cloth for cleaning. Avoid harsh chemicals or abrasive materials.
- Physical Protection: The key is constructed from durable plastic and metal. However, avoid dropping it or subjecting it to excessive force, which could damage the internal electronics or casing.

5. Troubleshooting
If your remote car key is not functioning as expected, consider the following:
- Check Battery: A weak or dead battery is a common cause of remote malfunction. Replace the battery as described in the Maintenance section.
- Reprogramming: If the battery is new and the key still doesn't work, it might have lost its programming. This requires reprogramming by a professional locksmith or car dealer using a compatible KEYDIY device.
- Physical Damage: Inspect the key for any visible damage to the casing or buttons. Significant impact can damage internal components.
- Interference: Strong radio frequency interference can temporarily disrupt remote key signals. Try operating the key in a different location.
- Professional Assistance: For persistent issues, consult a professional locksmith or automotive technician specializing in key programming.
6. Specifications
| Feature | Detail |
|---|---|
| Brand Name | ecusells (KEYDIY) |
| Material | Plastic+Metal |
| R/C Function | WITH |
| Customization | Yes |
| Origin | Mainland China |
| Manufacturer Part Number | NB15 NB18 NB21-3 NB21-4 NB22-3 NB22-4 NB Series Remote Car Key |
| Interchange Part Number | NB33 NB34 NB Series Remote Car Key |
| Other Part Number | NB25 NB27-3 NB27-4 NB28 NB29 NB30 KEYDIY Key |
| OEM NO. | NB04 NB11 NB11-2 NB08-3 NB08-4 NB10-3 NB10-4 NB12-3 NB12-4 KD Remote |
| Package Dimensions (approx.) | Length: 14 cm, Width: 16 cm, Height: 3 cm |
| Package Weight (approx.) | 0.057 kg |
7. User Tips
- Verify Compatibility: Always compare the product details and images carefully with your existing key or vehicle requirements before purchasing to ensure compatibility.
- Professional Programming: These keys require professional programming. Attempting to program them yourself without the correct equipment and expertise may result in damage or non-functionality.
- Handle with Care: While durable, avoid unnecessary stress or impact to the key fob to protect its internal electronics.
8. Warranty and Support
Your KEYDIY NB Series Remote Car Key comes with certain service commitments:
- Free Returns: Enjoy free returns within 90 days of purchase.
- Fast Delivery Guarantee: In case of delayed delivery, a coupon code may be provided. Refunds are available if the package is lost or items are damaged during transit, or if delivery is not completed within 30 days.
- Security & Privacy: Your personal details are protected, and payment information is handled securely.
For any support inquiries, troubleshooting assistance beyond this manual, or to claim warranty services, please contact the seller directly through your purchase platform. Provide your order details and a clear description of the issue for prompt assistance.





