Most people are aware that automakers have felt the brunt of the worldwide microchip shortage, resulting in understocked dealerships at a time when consumer demand is high. But there’s another less well-known trend that can further complicate the process of buying a new vehicle.

In an effort to expedite production, some automakers are limiting, or have stopped offering, certain popular features they can’t produce because of the microchip shortage.

These missing features, which range from heated seats to touch screens to USB ports, might slip past shoppers’ notice until it’s too late and they’ve already made a purchase. In this article, Edmunds’ experts take a deeper dive into why this is happening, what features might be missing and what you need to know before taking delivery of your next vehicle.

Why is this happening?

Semiconductor chips are the brains of electronics. They control features such as infotainment systems, advanced driver aids and even heated seats. Passenger vehicles can have anywhere from a few dozen microchips in average cars to more than 100 in high-end luxury vehicles that come equipped with more technology.

When you multiply that by the tens of millions of vehicles produced annually around the world, you’re talking billions of microchips for a single industry.

How manufacturers handled the COVID-19 pandemic is largely the main reason for the microchip shortage. Orders for chips were canceled when automakers temporarily shut down factories at the height of the pandemic. On top of that, the demand for chips increased at the same time in other industries because people were staying at home and needed additional electronics for work and play.

The surge of microchip demand started when automakers restarted production, leaving chip manufacturers unable to keep up. Furthermore, there have been supply chain issues with automakers unable to source certain parts or materials, compounded by a lack of shipping containers and overloaded shipping ports.

Items being removed

The missing features vary depending on the brand, although some fortunate automakers have been less affected by the chip shortage and aren’t eliminating features. Others are cutting vehicle production numbers on certain models to avoid deleting features on more popular models.

General Motors, for example, has been hit hard by the shortage, resulting in a number of missing features on several models.

Automotive News reported in November that most GM SUVs and trucks will come with heated seats and steering wheels that are not heated. This will obviously upset buyers in cold climates. Ventilated seats are also affected.

Fortunately, GM says it can retrofit heated and ventilated seats to vehicles missing them at no cost starting in mid-2022, a Reuters report states.

Another large automaker, BMW, has removed a popular feature from several models: Touch screen functionality on the infotainment screens. The iDrive infotainment system can still be controlled with the iDrive controller, however.

Earlier this year, Tesla removed rear USB-C charging ports and wireless charging pad functionality from its list of features in Model 3s and Ys.

Mercedes-Benz has been forced to delete some features, as well. There have been reports of certain models missing features such as particular audio systems, massaging seats, head-up displays and wireless charging pads.

Nissan also has felt the effect of the chip shortage, and the automaker didn’t install navigation systems on thousands of vehicles earlier this year.

Charged for missing features?

The good news is buyers shouldn’t be charged for features missing from their new vehicles. Instead, manufacturers are issuing credits to buyers of vehicles with missing features. BMW, for example, will give buyers missing touch screen functionality a credit of $500 to spend on other options.

GM is offering a credit of $150 to $500 for vehicles without heated steering wheels and heated and ventilated seats. It’s not clear if other automakers are also issuing credits, but there will likely be some sort of compensation or retrofitting when supply is available again.

Know what’s missing

Dealerships and their sales staff should be aware of vehicles they receive with missing features and should be informing buyers accordingly. But it’s not a sure thing. Therefore, you’ll need to do some research before taking delivery of the vehicle you bought.

Check dealership and manufacturer websites and even the window sticker for the full list of features your vehicle should have and confirm it in person or with a salesperson before signing off.

Edmunds says

It is difficult to predict when the parts shortage will end, but in the meantime, make sure to identify your must-have features when shopping for a new car and double-check that they are on the vehicle at the time of purchase.

Michael Cantu is a contributor at Edmunds.