2007 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Transmitter Battery
    GM1334720Courtesy of GENERAL MOTORS CORP.
  1. Install the battery with the positive (+) side down.

    Use one 3-volt, type CR2032 battery, or the equivalent.

  2. Ensure that the seal is in position.
  3. Align the two halves of the case together and squeeze the case closed until the tabs are fully seated.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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