DTC B142D-4B: Left Rear Cooled/Heated Seat Thermal Electric Device #1 - Over temperature: Action

Check the airflow to the rear left seat backrest climate assembly thermal electric device is not blocked
Using the JLR approved diagnostic equipment, clear the DTCs and retest. For further symptom driven diagnostic flow. Refer to the relevant Seating - Diagnosis and Testing - Vehicles With: Climate Controlled Seats, service information.