2011-2013 6.6L Lml Duramax - H&S XRT Pro Installation & Operation Manual

2007.5 - 2010 6.6L LMM Duramax Specific Features Continued >>
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!
After you have installed the H&S tuning, turn the key to the on position. From the Main
1.
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
traction bars when adding additional horsepower.

2011-2013 6.6l lMl DUraMaX

Power levels
Power levels are not currently shift-on-the-fly for the
2011 - 2013 6.6L LML Duramax. To adjust the Power Level,
select change Power level from the Main Menu and follow
the on-screen instructions
www.hsperformance.com for product updates)
noTe:
The Power Level ratings listed may not be exact for your particular
vehicle. The listed ratings apply to the out-of-the-box tuning that H&S tuning devices are shipped with. Any custom
downloads may result in different ratings and can be found at www.hsperformance.com/update-instructions.
speed limiter
This option allows for the removal of the factory speed limiter. Most 6.6L LML Duramax
trucks have a 98 MPH speed limiter from the factory. The limiter may be removed complete-
ly but WILL result in a loss of cruise control and exhaust brake function.
sure to visit www.hsperformance.com for product updates)
Install Download process.
Tire size calibration
(Not currently available for the 2011 - 2013 6.6L LML Duramax. This may change so be sure to visit
www.hsperformance.com for product updates).
factory speedometer to adjust for non-stock sized tires. For the most accurate speedometer
26 XRT Pro Installation Manual • www.hsperformance.com
(this may change so be sure to visit
.
This option allows for the re-calibration of the
Usa / UlsD caliBraTion
Power LeveLs
Tow
Street
. This option can only be changed during the
40 HP
. . . . . . . . . . . . . . . . . . . .
80 HP
. . . . . . . . . . . . . . . . .
(this may change so be