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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Smart Access System (For Start) - Symptom Tests (2 Of 2)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function, Gasoline Model) >> Additional Key cannot be Registered [11/2021 - 03/2023] >> Description

Additional Key cannot be Registered [11/2021 - 03/2023]: Description

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If additional registration is not possible, a malfunction of the electrical key transmitter sub-assembly, certification ECU (smart key ECU assembly), engine switch, No. 1 indoor electrical key antenna assembly (front floor), steering lock ECU (steering lock actuator with ECU assembly) or electrical key and tire pressure monitoring system receiver assembly is suspected.

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