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GM Flashcal For Truck - 2545

Suggested retail: $240.00
Your Price: $215.95
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    Please note: Flashpaq PN 2545 covers up to the 2016 model year GM only.For2017+ GM coverage please refer to PN 2547.If you are a GM truck owner who is looking for a device to help calibrate for your large aftermarket tires, read/clear trouble codes, adjust your speed limiter and more, then look no further. The Flashcal for Truck is a product designed to give features and calibration tools to truck owners at a great price. The days of clunky, outdated calibration tools are over. Flashcal has trucks covered and the market cornered with quality and pricing that can't be matched. Covers 1999-2018 GMC/Chevy gas trucks and 2001-2016 GMC/Chevy diesel trucks.


    Corrects speedometer for tire upgrades between 26 - 38 *
    Speedometer recalibration for gear /axle swaps *
    Speed/Rev Limiter Options *
    TPMS Options *
    Reads and clears diagnostic trouble codes
    Digital Battery Voltage Display
    Real-time Data Logging
    Real-time Data Monitoring
    Upgradeable to Flashpaq Tuning


    Please note: Flashpaq PN 2545 covers up to the 2016 model year GM only.For2017+ GM coverage please refer to PN 2547.


    *Features may vary based on year, make, & model.


    *E-assist and hybrid vehicles not supported*

    Corrects speedometer for tire upgrades between 26 - 38 *
    Speedometer recalibration for gear /axle swaps *
    Speed/Rev Limiter Options *
    TPMS Options *
    Reads and clears diagnostic trouble codes
    Digital Battery Voltage Display
    Real time Data Logging
    Real Time Data Monitoring
    Upgradeable to Flashpaq Tuning

    *Features may vary based on year, make, & model.

    You must configure your vehicle to view Product Features

    Questions about buying this product? Our experts are available from 8 AM – 5 PM MT. Call today at 888-227-2447. Our sales team would be happy to answer any questions you have.

    This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

    GM Flashcal For Truck is rated 4.4 out of 5 by 27.
    Rated 5 out of 5 by from Worth the money I bought this to turn off the afm 4 cyl mode and it did the trick with no complication. Now I can calibrate my tire size when I get bigger tires and clear codes for the same price as the competiors that just turn off afm. I am very happy with this purchase. Wasn’t wanting to tune or add power just couldnt stand the helicopter noise that my exhaust made in 4 cyl mode. This is worth every cent.
    Date published: 2018-08-02
    Rated 5 out of 5 by from Works as described and really easy and reliable I use this on my Hummer H2 and it works great!! Instant results you can feel and see. Easy to upgrade and lots of options for your vehicle. Thanks!!
    Date published: 2017-05-02
    Rated 5 out of 5 by from Works great I bought the flashcal to correct my speedometer after getting bigger tires. In less than 10 minutes it was corrected and I was back on the road. Definitely going to upgrade it to the flashpaq.
    Date published: 2017-07-18
    Rated 5 out of 5 by from Great product I bought to recalibrate tire size and disable AFM. Did a great job and plan to upgrade to tuner in the near future!!
    Date published: 2018-02-13
    Rated 5 out of 5 by from Works Well Thus tool does exactly what I need it to do. I recommend it.
    Date published: 2017-12-24
    Rated 3 out of 5 by from It works but needs more I am not completely new to the superchips family. This is my 2nd superchips programer. I also have a older version for my 2000 K2500. Let me say that I’ve had no issues with then older version I could adjust performance, transmission shifts, gear ratio, tire size just to mention a few. I guess I was comparing apples to oranges when I purchased the flashcal. It doesn’t have half the features my old superchips programer has but it works as advertised. I think I should have spent the money and got a full featured superchips product.
    Date published: 2020-07-26
    Rated 5 out of 5 by from Exactly what I wanted – Bye Bye AFM! I have a 2008 5.3 Tahoe and loved everything about it other than the AFM that's a ticking timebomb for the motor. I did a ton of research of various methods to delete the AFM/DOD and finally found the FlashCal. A 2008 Tahoe was not listed as an application for the Chevy FlashCal but seeing as though it's basically the same thing as a 2008 Silverado I figured it'd work so I called Superchips to be sure and they said it would work. Sure enough I plugged it in after it arrived and a few minutes later AFM/DOD was no longer active! I've now put 1,000 miles on it in V8 mode only and I'm really happy with the results and how smooth the truck is now. It was well worth the $200 for the peace of mind in deleting AFM/DOD and the issues it can cause to the motor. Also it's worth mentioning I'm a longtime automotive DIY'r but this was the first time I've ever used any kind of programmer device and it was very easy and intuitive to use.
    Date published: 2021-01-25
    Rated 5 out of 5 by from GM 2545 Flash Cal I bought this Flash Cal to update the tire size on my 2015 GMC Sierra 1500 Denali. Worked as described and very easy and quick to install. Got lucky and had a local police department who had a speed limit sign up giving you your speed. It corrected the speedometer to within 1 mph in reference to their speed device. Great product. Will be looking into upgrading to the FlashPaq at some point.
    Date published: 2018-10-18
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    I have been looking at this product. Do I have to buy another program to use it or is it ready to go. On amazon one customer said he had to buy the program after paying for the device.

    Asked by: Nickleo0430
    Our Flashcal device is not a tuning device, it's used strictly for calibrating factory settings, like adjusting your speedometer for different tire sizes or disabling your speed limiter or Active Fuel Management system. If you're looking to tune your truck, checkout our Flashpaq device which comes pre-loaded with tunes specific to your application.
    Answered by: Jacob W
    Date published: 2021-04-05

    I have 2000 GMC Sierra Z71. Running 35's and contemplating 5.13 ring /pinion swap. Will the flashcal handle up to the 5.13 ring and pinion or is it limited to 4.88?

    Asked by: Ahawk
    Our device will only support up to 4.88 in that application
    Answered by: Jacob W
    Date published: 2021-03-29

    If I used this to disable the afm only, will cause any issues with the cruise control? Thanks

    Asked by: Abe1
    It should have no effect on your cruise control at all
    Answered by: Jacob W
    Date published: 2021-03-24

    This work for Cheyenne 5.3 2002 I have 37 tires this work with my truck

    Asked by: Cheyene
    Yes, we support the 2002 5.3L
    Answered by: Jacob W
    Date published: 2021-03-22

    Im adding 35 inch tires in my 16 silverado. How difficult is it and do instructions come with this to re-calibrate my speedometer?

    Asked by: NickZ
    Our device is very straight forward and will walk you through the process. Just be sure to measure your tires with a tape measure. Don't input the number printed on the side of the tire, very rarely will that height be accurate.
    Answered by: Jacob W
    Date published: 2021-03-21

    i have a 2008 gmc sierra 1500 just got the afm turned off can i still use this to set my spedometer when l put bigger tires on it later

    Asked by: sam88
    Yes, you should be able to
    Answered by: Jacob W
    Date published: 2021-03-21

    With this tuner can I reset the rev limiter?

    Asked by: Graft6
    Depending on the application, yes, we do offer some adjustability to the rev limiter.
    Answered by: Jacob W
    Date published: 2021-02-01

    Can work with a 1998 GMC K3500, 6.5 TurboDiesel 4x4 SLT???

    Asked by: Djac
    Unfortunately, we only support back to the 1999 model year.
    Answered by: Jacob W
    Date published: 2021-01-29
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