Heated and Cooled front seats

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

Heated and Cooled front seats delivers genuine OEM dual‑function climate seating for driver and front‑passenger positions on DOIP‑based JLR Defender L663 vehicles. However, most mid‑trim Defender models are only fitted with basic front‑seat heating and lack the factory ventilated blower assemblies, with related feature flags locked within the CCF configuration file. As a result, occupants miss active seat cooling for hot‑weather journeys, retaining only heating functionality for cold conditions. If you aim to build a premium all‑season cabin comfort setup, pair this retrofit with our Seats memory. It lets you store personalised heating‑cooling intensity presets together with seating‑position memory profiles. This kit supplies genuine OEM heating‑element mats plus seat‑integrated ventilation blower units and dedicated LIN‑bus wiring pigtails. In turn, it unlocks multi‑level heating and multi‑speed ventilated cooling, with dedicated climate‑control tiles within the Pivi Pro climate‑settings menu.

First of all, combined heated and cooled seat functions will never activate purely from physical blower‑and‑heating‑element hardware installation. Next, technicians partially remove front‑seat upholstery and cushion assemblies to fit OEM heating mats and ventilation blower modules beneath the seat covers. They route dedicated LIN‑bus communication wiring and complete verification of every seat‑module electrical connector locking. After that, our jlrcoding team completes a comprehensive DOIP diagnostic scan. We enable heated‑and‑cooled‑front‑seats feature flags inside the vehicle CCF file. Furthermore, we run multi‑parameter adaptation for DSM driver‑seat‑module, PSM passenger‑seat‑module, SAM seat‑adjustment‑module, BCM body‑control‑module and IAM infotainment‑master‑module. Once coding completes, the system modulates power for both heating‑elements and ventilation blowers. Meanwhile, the Pivi Pro interface exposes independent driver‑passenger heating‑cooling adjustment controls. For this reason, check our Heated steering wheel to complete your full cold‑weather driver‑comfort package.

Hardware & Operating Logic

This retrofit includes OEM seat‑cushion‑and‑backrest heating‑element mats, integrated ventilation blower assemblies, LIN‑bus wiring looms, vehicle‑specific pigtails and all mounting fasteners. The DSM and PSM read thermal‑sensor data and regulate output for heating circuits and ventilation blowers. Subsequently, seat‑climate‑status, thermal‑limit and diagnostic fault signals travel over LIN‑bus and CAN‑FD bus toward SAM, BCM and IAM modules. Users select low‑medium‑high heating levels or multiple ventilation‑cooling speeds via Pivi Pro touch‑screen controls. Once activated, heating‑elements deliver warmth in cold conditions, while blowers draw air through perforated seat upholstery for active cooling in high‑temperature environments. Built‑in thermal protection prevents element overheat and blower over‑load events. All heating‑ventilation sequencing, safety thresholds and menu‑mapping strictly follow original JLR factory L663 specifications. Notably, driver and passenger seat‑climate channels operate fully independently of each another. Even so, ventilated cooling functionality and full dual‑mode menu entries stay dormant after mechanical hardware fit‑out only. Rather, authorised DOIP multi‑module programming plus thermal‑ventilation relearn calibration is mandatory for correct operation. Finally, combine this all‑season comfort upgrade with Rear heated seats to extend comfort features to second‑row passengers.

Vehicle Eligibility & Technical Pre‑Conditions

This Heated and Cooled front seats retrofit applies for 2020+ Defender L663 90, 110 and 130 models. The vehicle must support DSM‑PSM managed LIN‑bus seat architecture and have physical mounting clearance for blower‑units inside the seat base plus perforated seat upholstery compatibility. Therefore, please submit your VIN number first. We validate existing DSM, PSM, SAM, BCM and IAM firmware revisions before starting seat‑trim disassembly work.

Local workshop work includes partial removal of driver‑and‑passenger‑seat cushion and backrest upholstery. Technicians fit heating‑element mats and ventilation blower hardware, then secure LIN‑bus harness connections. In some cases, base‑trim vehicles need supplementary wiring upgrades to meet JLR dual‑mode seat‑climate electrical requirements. After hardware installation is complete, we create a secure backup copy of your original CCF configuration. We activate the heated‑and‑cooled‑front‑seats feature flags. Then we execute thermal‑ventilation relearn calibration and heating‑blower‑output‑threshold parameter tuning. Last of all, we clear all seat‑climate‑comfort‑related DTC fault codes.

Local physical fitting can be combined with our worldwide remote coding service. Remote sessions require DOIP‑VCI or Enet Type‑C cable. In short, follow our standard jlrcoding remote‑service workflow.

Key Technical & Practical Benefits

• OEM Dual‑Mode Heated & Ventilated Cooling: Genuine JLR hardware delivers multi‑level heating for winter and active blower‑ventilation cooling for hot‑climate driving for both driver and front‑seat occupant.
• Pivi Pro Native Climate‑Menu Integration: Independent driver‑passenger heated‑cooled adjustment tiles within infotainment climate screen; no aftermarket add‑on switches or external controllers required.
• Native LIN‑bus / CAN‑FD Multi‑Module Integration: DSM and PSM communicate with SAM, BCM and IAM following factory JLR interior‑system logic, including built‑in thermal‑overheat and blower‑over‑load safety‑protection routines.
• Professional DOIP Seat‑Climate‑System Calibration: CCF feature‑flag activation plus thermal‑ventilation relearn removes seat‑comfort‑related DTC faults and guarantees stable cross‑module‑bus communication.

Quality Assurance & Service Notes

Every retrofit starts with pre‑install diagnostic health‑check plus secure original CCF backup. Once coding is finished, we validate multi‑level heating performance, ventilation‑blower speed‑step response, safety‑cut‑off triggers and Pivi Pro climate‑menu visibility. Importantly, hardware‑only fitment of heating‑and‑blower assemblies cannot achieve fully‑compliant factory Heated and Cooled front seats functionality.

Otherwise, incomplete module adaptation or mis‑calibrated thermal‑ventilation thresholds can lead to missing cooling function, uneven heating output or persistent seat‑comfort DTC fault codes. Ultimately, once fully calibrated, this OEM‑spec upgrade delivers year‑round front‑occupant comfort. It suits cold‑climate commuters, hot‑weather road‑trips, family‑shared vehicles and Defender overland‑focused owners.