1-888-628-1730 • Mini Maxx Installation Manual 43
trucks have a 98 MPH speed limiter from the factory. The limiter can be adjusted from 50
MPH to 95 MPH or removed completely. This option can only be adjusted during the Install
Download process.
Tire size calibration
This option allows for the re-calibration of the factory speedometer to adjust for non-stock
sized tires. For the most accurate speedometer reading when using non-stock sized tires, it
is best to measure the diameter of the tire using a tape measure rather than going by the
printed tire size. In addition, using a GPS is a great way to dial in your factory speedometer.
Entering a larger tire size will cause the factory speedometer to read higher while entering
a smaller tire size will cause the factory speedometer to read lower. The tire size can be ad-
justed from 25” to 60”. This option can only be adjusted during the Install Download process.
noTe:
On some vehicles, entering a tire size larger than 35” may cause the ABS light to illuminate.
Transmission reset / relearn
The automatic transmission on the 2007.5 - 2010 6.6L LMM Duramax has what is called
adaptive Memory
and is constantly learning and adapting to different horsepower levels,
temperatures, driving habits, etc. We highly recommend performing a Transmission Reset
/ Relearn procedure after installing H&S tuning to help the transmission perform correctly
with the added horsepower. The transmission will eventually learn over time on its own, but
the relearn procedure gives a good baseline for the adaptive learning and helps to speed up
the learning process. To perform the relearn procedure, please follow these instructions:
When re-training the transmission, ALWAYS follow posted speed limits. Do NOT at-
tempt runs in adverse weather conditions such as snow, ice, rain, wind, or any other
conditions that may affect your vehicles traction or impair your visibility!
1. After you have installed the H&S tuning, turn the key to the
on
position. From the Main
Menu, scroll down until you see the
reset Transmission option.
Select
reset Trans-
mission
and follow the on-screen instructions to reset the transmission adaptive memory.
2. After the transmission reset is complete, it is recommended to perform each of the follow-
ing 0-80 MPH runs while in the
Performance
power level:
•
0-80 MPH @ 25% throttle position, then slow down and come to a complete stop.
•
0-80 MPH @ 50% throttle position, then slow down and come to a complete stop.
•
0-80 MPH @ 100% throttle position, then slow down and come to a complete stop.
The Transmission relearn procedure is complete.
noTe:
On any vehicle using 3” or larger lift blocks under the rear leaf pack, it is HIGHLY RECOMMENDED to install
