Lexus RX 2nd (XU30) (2004–2009) — Key Programming Reference

Key fobs & transponder keys (2 variants)

Photo	Key	Years	Market	FCC ID	P/N	Chip	Freq	Battery	Blade
	314.35 MHz · HYQ12BBT	2004–2009 NA (RX330 2004-2006, RX350 2007-2009, RX400h 2006-2008)	Americas · Other	HYQ12BBT	89070-48821	Texas ID 4D68	314.35 MHz	CR2016	TOY48 (LXP90)
	433 MHz · 89070-48830	2004–2009 export (Taiwan / Korea / Singapore / Europe; RX300/RX330/RX350/RX400h)	Asia-Pacific · Europe	n/a	89070-48830	Texas ID 4D68	433.92 MHz	CR2016	TOY48 (LXP90)

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 — Lexus RX (XU30) 4D68 smart/remote key requires professional OBD tool — no self-programming procedure for this transponder family.
• 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 · Autel IM508S · Autel KM100 · Xhorse Key Tool Plus · Xhorse Key Tool Max Pro · Lonsdor K518 Pro / K519 · 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 Lexus RX (XU30) uses Texas 4D68 pre-G transponder (2004-2009). 4D68 is an older fixed-code Texas chip — most modern aftermarket programmers cover it via OBD2 with the "Toyota/Lexus → Older Texas (4D68/4D67)" path. Autel KM100 and Lonsdor K518 USA both confirm 4D68 support. No XP400 PRO bench, no APB112 simulator needed for OBD enrolment.
• Smart proximity key: ensure existing key fob battery is functional before starting.
• Verify chip before booking: H-chip vs G-chip vs 4A AES generations share a fob shell but use different cryptosystems — confirm transponder ID from a working key with Lonsdor K518 reader before quoting.
• Autel APB112 simulator and Autel G-Box bench EEPROM are NOT required for OBD-only add-key on this Toyota family. XP400 PRO only needed for damaged ECU EEPROM dump fallback.
• All existing keys erased. Bring ALL replacement keys before starting — minimum 2.
• No manual AKL for Lexus RX (XU30) 4D68 smart key — professional tool mandatory.
• AKL for Toyota/Lexus 4D68 typically needs dealer-issued PIN or seed-code cloud calc — confirm OBD AKL path before quoting.
• Keep all existing/lost key fobs at least 10 metres from vehicle during AKL.
• AKL accessory needs: Lonsdor LKE Smart Key Emulator for K518 simulated-key AKL path. APB112 simulator and Autel G-Box bench EEPROM are NOT mandatory for standard AKL on this Toyota family — only XP400 PRO is needed if the ECU EEPROM is corrupted (rare).

Lockout

Door pick / decode: Lishi TOY48 (CW).

27 verified sources · Last verified: 2026-08-10

Step-by-step tool menu paths, the full source list and video guides for this case are in the KeyAssist app — free to start, works offline.

Quick answers

What FCC ID does the Lexus RX 2004–2009 key use?

HYQ12BBT — remote head key.

What transponder chip does the Lexus RX 2004–2009 key use?

Texas ID 4D68 — remote head key.

What key blade and Lishi tool fit the Lexus RX 2004–2009?

Key blade: TOY48 (LXP90). Lishi: TOY48.

What OEM part number does the Lexus RX 2004–2009 key use?

89070-48821 — remote head key; 89070-48830 — remote head key.

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