If You're looking for a gas cap on Your GMC Acadia, then I've got some news for You. Your GMC Acadia does not have a gas cap. You actually just open the gas fuel door and push the fuel pump into the gas tank and that's how You refuel Your vehicle. If You don't know how to open the gas tank door, then first, unlock Your vehicle. Second, You're going to want to walk toward Your gas tank. Go ahead and push on the lower left side of the door. The door should now open and You should be ready to fuel up.
Leonard M
July 30, 2020
To open the gas cap on a 2018 GMC acadia, push on the outer edge of the fuel door to release it and open the cap.
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