Toyota Land Cruiser 250 Series (J250) — North America (2024–2026) — Key Programming Reference
- Difficulty
- hard
- Immobilizer
- H-8A/128-bit
- Lishi / lockout
- TOY48
- Platform
- TNGA-F (J250 / Prado)
Key fobs & transponder keys (1 variant)
| Key | Years | FCC ID | P/N | Chip | Freq | Battery | Blade |
|---|---|---|---|---|---|---|---|
| 315 MHz · HYQ14FBX | 2024–2026 | HYQ14FBX | 8990H-60790 | Texas H 8A (DST-AES, 128-bit AES) | 315 MHz (312.1 / 314.35 MHz dual-channel) | CR2450 | TOY48 emergency insert |
Programming procedures
What the job needs
- Add a key: 1 existing working key required.
- All keys lost: no existing working key needed.
- PIN / security code: Toyota cloud seed-code.
- Online / server access: not required (offline programming).
- On-board (no tool) sequence: not available — Toyota Land Cruiser J250 H-chip (DST-AES/ID8A) smart key requires a professional OBD tool — no self-programming procedure for the proximity key transponder.
- On site: engine off · Maintain 12V+ · Clear IMMO DTCs.
- Bring: Photo ID + vehicle registration. VIN cross-check before start.
Tool coverage
Documented for this case on: Autel IM608 Pro II · Lonsdor K518 Pro / K519 · Xhorse Key Tool Plus · Xhorse Key Tool Max Pro · Autel IM508S · Autel KM100 · OBDSTAR X300 DP Plus · AutoProPad G2/G3 · Advanced Diagnostics Smart Pro · Launch X431 IMMO Elite / IMMO Plus. Step-by-step menu paths for each tool are in the app.
Notes & cautions
- This chassis Toyota H-chip (Texas DST-AES Page1 H / ID8A) smart key. Land Cruiser J250 (2024-2026) — newest H-chip / 8A smart key. Newer-era H-chip/8A on Autel needs IMKPA token (~$5-15/session). Lonsdor K518 USA + Toyota AES module covers G/H/8A natively. Xhorse VVDI Key Tool Plus needs 2024+ firmware for H-chip. Standard 16-pin DLC OBD path; no XP400 PRO bench, no APB112 simulator needed for OBD enrolment.
- Smart proximity key: ensure existing key fob battery is functional before starting.
- Do NOT order the J300 433 MHz B3N2K2R key — the North-American J250 uses the 315 MHz HYQ14FBX / 8990H-60790 fob. Confirm the FCC label on the customer's existing key before ordering a blank.
- Post-2024 Autel US firmware: Toyota/Lexus add-key may be affected by TMNA restrictions — verify on current firmware.
- All existing keys erased. Bring ALL replacement keys before starting — minimum 2.
- No manual AKL for Toyota Land Cruiser J250 H-chip smart key — professional tool mandatory.
- AKL for Toyota H-chip typically needs a dealer-issued PIN or seed code — confirm the OBD AKL path before quoting.
- Keep all existing/lost key fobs at least 10 metres from vehicle during AKL.
- Post-2024 Autel US firmware: Toyota/Lexus AKL reportedly restricted per TMNA — verify capability before booking.
Lockout
Door pick / decode: Lishi TOY48 (CW).
7 verified sources · Last verified: 2026-08-06
Open full case in KeyAssist →Step-by-step tool menu paths, verified source links and video guides for this case are in the KeyAssist app — free to start, works offline.
Security-gateway / bypass-cable requirements for this vehicle are covered in the Gateway & Access reference — open it in the app.