The KEYDIY B35-4 is a Toyota-style, 4-button universal remote head key from the KEYDIY B-Series. It gives automotive locksmiths a programmable remote for supported applications, with clearly marked Lock, Unlock, Trunk and Panic buttons. The black housing has a textured finish, a keyring loop and KEYDIY branding on the back.
Supplied as one unprogrammed remote with electronics. A CR2032 battery, compatible key blade and any required immobilizer transponder chip are sold separately. This is a KEYDIY aftermarket product with Toyota-style housing.
Product Highlights
- Model B35-4 / SKU KD-B35-4: four-button B-Series remote for professional key generation.
- Programmable frequency: supports B-Series remote generation within 300–500 MHz, including common 315 MHz and 433 MHz applications, subject to the selected KEYDIY profile.
- Flexible transponder setup: no integrated immobilizer chip; select a separate compatible chip when the vehicle requires one.
- KEYDIY tool support: generate supported remote profiles using KD-X2, KD-MAX, KD-X4, Mini KD, KD900 or KD900+.
- Clear purchasing requirements: remote generation, vehicle pairing, blade cutting and transponder programming are separate steps as applicable.
Product Details
| Brand / manufacturer | KEYDIY (KD) |
|---|---|
| Manufacturer model | B35-4 |
| KeysRUs SKU | KD-B35-4 |
| Series / type | B-Series universal remote head key; wired remote generation |
| Housing style / colour | Toyota style / black textured plastic |
| Buttons | 4: Lock, Unlock, Trunk and Panic |
| Frequency | Programmable 300–500 MHz; the supported profile determines the operating frequency |
| Battery / power source | 1 × CR2032 coin-cell battery, sold separately |
| Transponder chip | Not included; separate compatible chip required for immobilizer-equipped applications |
| Key blade | Not included; select a blade compatible with this housing and the vehicle |
| Proximity / passive keyless start | No |
| Programming | KEYDIY remote generation and vehicle-specific pairing required |
| Condition / quantity | New / 1 remote |
Vehicle Compatibility for KEYDIY B35-4
Toyota style describes the housing design; it does not establish make, model or year fitment. Select this remote only when the current KEYDIY database lists a suitable B-Series profile for the vehicle and market. Check the original remote's part number or FCC ID where applicable, operating frequency, button functions and immobilizer requirements.
Remote generation prepares the remote; the vehicle still needs the correct pairing procedure. For a complete ignition key, confirm the blade and transponder separately. Available trunk and panic functions depend on the vehicle and the generated profile. This B-Series model does not provide proximity entry or push-button-start smart-key functionality.
What You Need to Complete the Key
- A supported KEYDIY remote generator and its appropriate remote-generation connection.
- A CR2032 battery.
- A compatible key blade, cut to the vehicle, when using it as an ignition key.
- A suitable transponder chip and immobilizer programming or cloning, when required.
- The vehicle-specific remote-pairing procedure or compatible programming equipment.
Frequently Asked Questions
Is the B35-4 only an empty shell?
No. This listing is for the unprogrammed KEYDIY remote with its circuit board and housing.
Does it work as soon as the battery is fitted?
No. It must first be generated for a supported application and paired with the vehicle.
Can I buy it based on its Toyota appearance?
Confirm the KEYDIY application first. Matching the housing or button count alone does not confirm compatibility.
Are the battery, blade and chip included?
No. These are selected separately to suit the application.
Browse KEYDIY remotes and tools, or contact KeysRUs with the vehicle year, model, market and original remote details for help identifying the right product.
