Description: This 6 - position switch, part number H - M04 - 00, is a great fit for 2017 - 2022 GMC/Chevrolet trucks with the L5P 6.6L Duramax engine and E41 ECM. HP Tuners has developed this new switch for the L5P to work with the ECU. It offers one stock setting and five upgraded settings, allowing you to fully customize your truck's driving experience! Features include a 5’ OBDII pass - through cable, a knurled aluminum switch knob and position dial, and a six - position rotary switch. Click here to view the user guide.

Using this 6 - position switch is easy. First, connect the 5’ OBDII pass - through cable to your truck. Then, use the knurled aluminum switch knob and position dial to select the driving mode you want. You have one stock setting and five upgraded settings to choose from according to your driving needs. When using the switch, make sure your truck's engine is off to avoid any electrical issues. As for maintenance, keep the switch clean and dry. Avoid exposing it to extreme temperatures or moisture. If you have any problems with the switch, refer to the user guide or contact HP Tuners for support.