Question 1

What is Rear Motor Cable Corrosion ("Cablegate") on the Lexus Lexus RX (Mk5)?

Accepted Answer

The latest RX models continue to use an exposed high-voltage connector for the rear motor that can suffer from corrosion in harsh UK winters, potentially leading to expensive electrical repairs.

Question 2

What is 12V Battery Parasitic Drain on the Lexus Lexus RX (Mk5)?

Accepted Answer

Similar to the NX, the latest RX can struggle to maintain 12V charge if the car is not used for several days.

Question 3

What is CAN-Bus Security Vulnerability on the Lexus Lexus RX (Mk5)?

Accepted Answer

While improved over the previous generation, high-end SUVs like the RX are targets for CAN-bus injection theft in the UK. Lexus has released plates and software to mitigate this.

Question 4

What should I check when buying a used Lexus Lexus RX (Mk5)?

Accepted Answer

The RX 500h uses a different 6-speed automatic instead of an e-CVT; test it for smooth shifts under hard acceleration.

Question 5

What should I check when buying a used Lexus Lexus RX (Mk5)?

Accepted Answer

Verify that any security software patches for CAN-bus theft have been applied by a Lexus dealer.

Question 6

What should I check when buying a used Lexus Lexus RX (Mk5)?

Accepted Answer

Test the ambient lighting and infotainment profiles for stability.

Question 7

What years was the Lexus Lexus RX (Mk5) made?

Accepted Answer

The Lexus Lexus RX (Mk5) was produced from 2022 to 2025.

Lexus Lexus RX (Mk5)

Lexus RX (Mk5) Reliability & Common Faults

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