On a 2026 Sierra EV with MultiPro Midgate, fold the rear seats and support the midgate from outside; with the glass installed, a short switch press opens the larger pass-through door and a three-second press opens both doors.
Check that your vehicle has it.
Verified for 2026 Sierra EV models fitted with the available MultiPro Midgate. GMC lists the feature as available across the Elevation, AT4 and Denali lineup; confirm the truck's package.
- Required equipment / service
- Sierra EV Elevation, AT4 or Denali equipped with the available MultiPro Midgate
Does the documented scope match your car?
This check combines the verified year, any source-supported powertrain scope, source-named trim/package and required equipment. It does not read a VIN or factory build record.
Published availability and qualifications
Verified for 2026 Sierra EV models fitted with the available MultiPro Midgate. GMC lists the feature as available across the Elevation, AT4 and Denali lineup; confirm the truck's package.
Know what kind of control to look for.
This original category diagram is an orientation aid, not a picture of your exact trim. Use the written labels and your vehicle manual to identify the real control.
Step by step.
- 01
Park, unlock the vehicle, clear the cargo path and fold the rear seats; temporarily secure the second-row belt buckles in the door-trim slots if needed.
- 02
Stand outside, hold the midgate securely and press a midgate switch for less than two seconds to open the larger pass-through door with the glass and crossbar installed.
- 03
For both pass-through doors, press and hold either switch for at least three seconds; with the glass stowed, use the manual's short-press rule unless the rear defogger is active.
- 04
To close, secure the belt buckle out of the path and swing the midgate upward firmly until both latches engage.
- 05
Release the belt buckle from the trim slot and verify the midgate is fully latched before raising the seats or driving.
Important limits
- The midgate is heavier when the rear glass is stowed and the crossbar lowers with it; support its weight and never let it fall.
- Water drips can enter when the pass-through doors or full midgate are opened because the system routes water through gutters.
Quick checks.
- ✓If only one section opens, check press duration and whether the larger door is already open before requesting the smaller door.
- ✓If a latch will not engage, inspect the belt buckles and cargo path, then use a firm upward swinging motion as directed in the manual.
What happened on your vehicle?
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2026 GMC Sierra EV Owner's Manual — Midgate Operation
Relevant section or page: 21-25. We use the written official source to determine the steps and applicability shown above.
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Reviewed with a visible trail.
Scope and steps were checked by Car Cheat Codes Editorial Review. A guide is narrowed or corrected when the source does not support a broader claim.
- Published
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Guide change history
- Initial verified publication.