Making sure your vehicle is well taken care of is much easier with the right tools. One essential that everyone should have in their glove box or garage is an OBD2 scanner like the TopDon TD309 Car Code Reader. It's on sale for just $9.99 at Amazon when you use promo code UNW7UAJQ during checkout, making it affordable enough where there's no excuse not to own one.

This car code reader is extremely versatile and works with most vehicles manufactured after 1996 in the US or 2000 in Europe. Simply plug it into your vehicle's OBD-II port (usually found somewhere beneath the steering wheel) and you'll be able to check on its diagnostics and clear any trouble codes showing on your vehicle's dashboard. It can read and display I/M monitor status, determine the Malfunction Indicator Lamp status, and more, and its large display makes it easy to read too.

VPN Deals: Lifetime license for $16, monthly plans at $1 & more

Now you won't have to take your vehicle to a mechanic for every little thing, and you won't have to just trust that the mechanic is telling you the truth when it is time for a repair. Having one of these could even help guide you to fixing an issue all on your own so you can save time and cash. It supports various languages, including French, German, Dutch, Spanish, and English. TopDon includes a 1-year warranty with its purchase.

Shipping at Amazon is free on orders totaling $25 or more, or with an Amazon Prime membership. If you've never been a member before, you can start a free 30-day trial to score free two-day shipping with no order minimum, along with access to the Prime Video streaming service, exclusive members-only discounts, and more. Black Friday is only a week away and that quick, free shipping on thousands of items at Amazon will really come in handy.

We may earn a commission for purchases using our links. Learn more.