GMC HUMMER EV 2023 Owner's Manual page 35

34 Keys, Doors, and Windows
3. Carefully attach the I-Bar to the roof and
make sure that it is properly oriented.
The front of the I-Bar has the word
FRONT on the I-Bar, it is on the
underside of the weatherstrip. The front
has black push pins and the back has red
push pins. The studs of the I-Bar should
easily drop through the attachment
holes in the roof. Ensure it is fully
seated.
4. Retrieve ratchet, extension, and bit from
tool storage and assemble.
5. Using the tools, install the four I-Bar
nuts. It is recommended that they are all
hand-tightened, and then firmly
tightened using the proper tool. To
ensure a proper seal, evenly tighten the
I-Bar nuts in the proper sequence shown.
6. Return the tools to tool storage.
Installing the Roof Panels
Warning
An improperly attached roof panel may
fall into or fly off the vehicle. You or
others could be injured. After installing
the roof panel, always check that it is
firmly attached by pushing up on the
underside of the panel. Check now and
then to be sure the roof panel is firmly
in place.
Caution
Installing the roof with the release
handles in the closed position could cause
damage. Always move handles to the
open position when installing the roof.
The front I-Bar must be installed and
secured before the front panels can be
installed. The individual roof panels can be
installed in any order.
To install:
1. Shift the vehicle into P (Park).
2. Turn the vehicle off and set the parking
brake.
3. Remove the roof panel from the eTrunk
and remove the panel from the bag. Use
the panel identification marking on the
frame to determine where the
panel goes.
4. Make sure that both release handles are
in the fully open position.
5. Carefully place the roof panel into its
designated location. Position the inboard
edge of the roof panel next to the