
Yes, you can absolutely add heat to non-heated car seats. The most effective and reliable method is a professional installation of an aftermarket seat heater kit. These kits use heating elements that are installed beneath the seat upholstery and are controlled by a dashboard or seat-mounted switch. While DIY kits are available, professional installation is strongly recommended to ensure safety, proper function, and to avoid damaging airbags or seat sensors.
The process typically involves carefully removing the seat upholstery, placing the flexible heating pads in the seat back and bottom cushions, routing the wiring under the carpet to the fuse box for power, and installing a discreet switch. The total cost is usually far less than opting for a factory heated seat package on a new car. Expect to pay $200 to $600 per seat for a professional installation, depending on your vehicle's make and model and the quality of the kit. High-end kits from brands like Rostra or Gentex can rival OEM performance with multiple heat settings.
| Installation Method | Estimated Cost (Per Seat) | Professional Skill Required | Key Consideration |
|---|---|---|---|
| Professional Installation | $300 - $600 | No | Safest option; preserves upholstery; warranty often included. |
| DIY Kit (Self-Install) | $50 - $150 | Yes (Moderate to High) | Risk of damaging seat upholstery, airbag components, or electrical system. |
| Replacement Heated Seats | $500 - $1,500+ | Yes (High) | Sourcing used seats from a salvage yard; requires compatibility with your car's electronics. |
| Heated Seat Covers | $80 - $200 | No (Low) | Least invasive; plugs into 12V outlet; heat is less direct and effective. |
Before proceeding, consider heated seat covers as a simpler, non-permanent alternative. These plug into your car's 12-volt power outlet (cigarette lighter) and lay over your existing seats. However, the heat transfer is not as efficient or consistent as an integrated system, and they can look bulky and feel uncomfortable. For a seamless, factory-like result, a professionally installed aftermarket kit is the superior choice.

I did it myself in my old truck. Bought a kit online for about a hundred bucks. It was a weekend project—you have to be real careful pulling the seat fabric off without tearing it. The wiring was the trickiest part, connecting to the fuse box. It works great now, but I’d only recommend DIY if you’re comfortable with car interiors and basic wiring. Messing it up could cause a short.

I just use a heated seat cover from an auto parts store. It slips on like a regular seat cover and plugs into the power outlet. It gets the job done for my morning commute, especially since my new car didn't have the heated seats package. It's not as nice or as even-heating as the built-in ones in my wife's car, but for under a hundred dollars, it’s a decent temporary fix until I upgrade.


