There are a few essentials everyone should have in their vehicle, and while a phone charger and a flashlight are two of the most obvious picks, one product that isn't found in enough vehicles these days is an OBD2 Scanner. These make it easy to diagnose any issues your vehicle may be having so you don't need to take it to the auto parts store or a mechanic just to figure out what's going on.

A Bluetooth OBD2 Scanner like the Thinkcar 1S Bluetooth OBD2 Scanner is easy to use and can tell you all about any notification lights or warnings that are appearing on your vehicle's dash. While it normally costs $40, today you can pick one up on sale for only $19.99 at Amazon when you clip the coupon on its product page and then use promo code L3GPF5QG during checkout.

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Thinkcar 1S Bluetooth OBD2 Scanner

Tired of seeing that pesky Check Engine light on your car's dash? This OBD2 scanner makes it easy to figure out what it's actually saying so you can fix the problem yourself. Clip the on-page coupon and use the following promo code to save 50% today.

$19.99 $39.99 $20 off

With coupon: L3GPF5QG

OBD2 Scanners can be used in practically any car built in 1996 or later. Simply plug in the Thinkcar 1S to the OBD2 port in your car and then you can use an app on your phone to read or clear codes, reset monitors, and get real-time data regarding your vehicle from ignition time to vehicle speed, engine RPM, absolute throttle position, and more. It will also display your vehicle's information including the VIN number for an accurate diagnosis.

This OBD2 scanner supports 10 modes of OBD2 tests including advanced Mode5, O2 Sensor Test, On-board Monitor Test, and more. Plus, Thinkcar includes a one-year warranty with its purchase.

Amazon offers free shipping on orders totaling $25 or more, or with an Amazon Prime membership. If you've never been a Prime member before, you can start a free 30-day trial to score free two-day shipping with no order minimum. You'll also gain access to the Prime Video streaming service, exclusive members-only discounts, and more with your membership.

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