We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

Why are There Computers in Cars?

By Sherry Holetzky
Updated May 17, 2024
Our promise to you
WiseGEEK is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGEEK, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The more skeptical vehicle owner may be inclined to think that manufacturers install computers in cars in order to ensure that the vehicle must be brought into the dealership for maintenance or repair. While computerized information in cars does make it more difficult for many people to work on their own vehicles, it actually makes service simpler and more efficient when you bring your car to a mechanic or technician.

Because cars today can basically tell the mechanic what is wrong with them in many areas, much of the guesswork has been removed. This could mean fewer repairs and lower bills, especially if vehicle owners act quickly when computers in cars warn of potential problems. When you bring your car in, there are codes the mechanic can review to determine what needs to be done.

Today, computers in cars are standard features. Every modern car has at least one and many have several. Computers in cars include on-board diagnosis, which can warn of issues before they become serious problems and they can also be used to indicate when a car needs maintenance. It is mandatory for computers in cars to give certain emissions information.

The downside to having computers in cars is that often times when they break down they can be very expensive to repair. There are also expense issues with computerized keys. You can’t simply stop at the hardware store to have a new key made for a just few dollars if you need an extra one. Computerized keys tend to be costly, and they can only be obtained from dealers or from someone who specializes in making them.

On the other hand, there are some convenient aspects of having computers in cars. If your car needs an oil change, it can probably alert you to that fact. Instead of just an oil light that does not explain the problem, computers in cars can indicate that it’s time for an oil change or that your pressure is low and the oil needs to be checked or filled.

Many high-end vehicles are computerized to the hilt. Many monitor nearly every aspect of the vehicle and report on everything from the door being unlocked to the transmission needing service. Computers in cars are also responsible for the operation of the brakes, electric windows and door locks, heated mirrors or seats, air bags, keyless entry, keyless ignition, and much more. Even the stereo may have its own computer system.

WiseGEEK is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Discussion Comments

By anon116281 — On Oct 06, 2010

I change the oil at the recommended interval why do I need a computer to tell me that? All the problems diagnosed by the computer are ones caused by it in the first place!and incidentally servicing is not cheaper.

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.