Heated and Cooled front seats

Product Overview (JLR OEM‑Spec All‑Season Cabin‑Comfort Retrofit)

Heated and Cooled front seats delivers OEM dual‑mode climate seating for DOIP‑based JLR Defender L663. Many mid‑trim Defender models only offer basic seat heating. They lack ventilated cooling capability for hot summer driving. Occupants can experience seat sweat and discomfort during warm‑weather road trips. If you build an all‑year‑round comfort package, pair this retrofit with our Three‑zone Climate Control. It creates a fully balanced cabin temperature setup. This kit fits genuine OEM peltier heating‑cooling matrices and seat blower hardware. It unlocks multi‑level heating plus ventilated cooling controls inside the Pivi Pro climate menu.

First, combined heating and cooling functions will not work from hardware fit‑out alone. Technicians fit peltier matrix assemblies inside seat foam cushions and backrests. They install seat blower units and dedicated seat‑module wiring looms. Next, our jlrcoding team runs a full DOIP diagnostic scan. We enable heated‑and‑cooled‑front‑seats feature flags inside the CCF file. We also complete parameter adaptation for DSM, PSM, SAM and HVAC modules. After coding finishes, the system supports independent driver‑passenger heating‑cooling adjustment. It also enables climate‑menu selection for each operating mode. For extra cabin air‑quality improvements, check our Cabin Air Ionisation with PM2.5 filter.

Hardware & Operating Logic

This retrofit supplies OEM peltier heating‑cooling matrices, seat blower assemblies, vehicle‑specific wiring pigtails and all required mounting fasteners. The DSM and PSM monitor blower speed, matrix current draw and seat‑surface temperature sensor readings. Status and fault signals travel over LIN‑bus to SAM and HVAC across the CAN‑FD bus. Users toggle between heating and cooling modes and select intensity levels via Pivi Pro climate screens. Peltier‑element technology delivers gentle warming in cold conditions and active ventilated cooling in hot weather. Built‑in thermal‑limit protection cuts power to avoid overheating. This safety behaviour fully matches original JLR factory specifications. Even after full mechanical fitment, cooling‑mode operation and dual‑mode menu entries stay inactive. They only work after approved DOIP multi‑module programming and temperature‑sensor calibration. You can combine this premium seating upgrade with Heated steering wheel for complete cold‑weather driver comfort.

Vehicle Eligibility & Technical Pre‑Conditions

This Heated and Cooled front seats retrofit suits 2020+ Defender L663 90, 110 and 130 models. The vehicle must support peltier‑matrix compatible seat base architecture. Send us your VIN first. We check firmware versions on DSM, PSM, SAM and HVAC before teardown work starts.

Local work includes full front‑seat removal and seat‑cover disassembly. Technicians embed peltier matrices and mount blower hardware inside seat foam. They route and lock in new seat‑module wiring harnesses. Some base vehicles need extra wiring upgrades to meet JLR climate‑seat electrical requirements. Once hardware is fitted, we save a backup copy of your original CCF. We activate the heated‑and‑cooled‑front‑seats feature flags. Then we calibrate seat‑surface temperature‑sensor offset values. Finally, we clear all interior‑comfort‑related DTC fault codes.

You can pair local fitting with our worldwide remote coding service. Remote sessions require a DOIP‑VCI or Enet Type‑C cable. Follow the standard jlrcoding remote‑service workflow.

Key Technical & Practical Benefits

• OEM Dual‑Mode Peltier Heated & Cooled Seating: Genuine matrix‑blower hardware delivers multi‑level heating for winter and active ventilated cooling for hot‑climate journeys.
• Native Pivi Pro Climate‑Menu Integration: Separate driver‑passenger mode and intensity controls within infotainment; no aftermarket seat‑controller boxes needed.
• Native CAN‑FD / LIN‑Bus Module Integration: DSM, PSM, SAM and HVAC communicate using factory logic with integrated thermal‑safety cut‑off protection.
• Professional DOIP Calibration: CCF activation plus seat‑temperature‑sensor calibration removes comfort‑system DTC faults and keeps bus communication stable between modules.

Quality Assurance & Service Notes

Every retrofit starts with a pre‑install health check and CCF backup. After coding, we verify heating‑cooling mode switching, blower‑speed response and Pivi Pro climate‑menu visibility. Hardware‑only matrix‑blower fitment cannot enable fully compliant factory heated‑and‑cooled‑front‑seats functionality.

Incomplete adaptation causes missing cooling‑mode function or hidden menu entries. It may also trigger incorrect seat‑temperature DTC fault codes. Once calibrated, this OEM upgrade improves year‑round seating comfort. It works well for family users, hot‑climate drivers and Defender overland‑focused owners.