ECRI Calibration Module - Fits 2007-17 Jeep Wrangler JK - Requires in-APP Purchase PER Vehicle

Absolute great product that works as described. I used this on a 2025 Rubicon so it is up to date and user friendly. Hats off to Kevin in customer service as well for any questions I had. There is a $50 charge that is well noted in the description that you have to purchase, but it is a one time purchase and you will have it as long as you have your vehicle. All in all a great product for a great price!

The ECRI is easy to use. If you have a Jeep JL, be sure to buy the one with the security bypass. The box comes with clear and easy to follow instructions and is easy to install. You do have to download and app and pay a licensing fee to use on your vehicle. Mine was around $45, which is WAY cheaper than the dealership. I was able to calibrate my tire size since I upgraded to 35s (though the app shows I’m running closer to 33.5” with the geo calibration tool). I was also able to calibrate my head lights, fog lights, and turn signals to show I am running LED bulbs, so I am no longer getting the “turn signals out” indicator light (AKA: hyperflashing). This is not for tuning, but perfect for calibrating in your driveway instead of paying 10x at the dealership.

This thing is great and affordable. I recalibrated my Jeeps tire size and it already feels way less sluggish. My odometer should be correct now. I love that it also can set your tire size based on how fast you’re going the gps part of the app. I expect to get better gas mileage but too soon to tell.Another plus is it reads error codes a normal OBD scanner wouldn’t pick up. For example my regular OBD scanner only shows codes when the check engine light is on. My check engine light is currently off, but the scanner is showing me that I need a new battery soon. So now I can get a battery before this one leaves me stranded. Very cool! Giving my old one to a family member and keeping this one.

Fairly easy to navigate, it can be a little buggy at times but a reseat of the unit seems to get you back on track. Great price, well worth the price and convenience to have.

So easy to use and works perfectly. Used the gps option to calibrate my speedometer.

Grand total for everything is around $100 so it's super affordable. App runs great on Android and the the dongle is quick and works as it should. ERCI has awesome customer service. Highly recommend for Jk owners !!! Thanks again guys ✌️

Changed my tire pressure threshold and my tire size by inputting the measurements. Then I noticed the GPS on my radar detector was showing a slightly higher speed still, so I used the ECRI GPS feature to "zoom in" on my actual speed. It took constant averages over a couple of miles and really nailed calculating a true tire size. Now my speedo is perfect for my tires.I also changed my amber halogen turn signals (2018 JL) to be daytime running lights. Looks super cool. In my opinion, Amber is on the way in and white DRLs are on the way out anyway. (After selecting what lights you want as DRL You also have to set the DRL region to US, which is blank by default, to get them to actually activate).This thing has tons of features, unless you need something (I don't know what that would be) that the more than 2x more expensive brands have, you'd have to be a dope or just hate your money to not buy this.Oh, and of course you can share amongst jeeps. (Just get your friends to pay the extra $50 in app purchase for their Jeep! They'll save tons of money though!)

Simple enough. Watched a video and was able to figure out this fairly quickly for my JLU after installing 35’sI also was able to program it to leave on the fog lights when my brights are on. And tweak some TPMS settings. Worth it and then some. You WILL have to pay for the $50 app license. Keep that in mind.Improved my gas mileage and quality of ride immediately after calibration.