GMC Yukon XL back hatch door not opening issue inquiry on GMC Yukon XL

Some GMC Yukon XL owners report experiencing issues with the back hatch door not opening due to several potential causes. These include a loose cable or broken clip that may prevent the door from functioning properly, as well as a faulty lock relay that can lead to unlocking problems. Additionally, some owners find that the engine managing the fuel door opening may be burnt out, necessitating replacement. Low battery voltage can also result in a malfunctioning rear lock actuator, hindering the unlocking process. Furthermore, issues with the power liftgate buttons may arise from a blown fuse or wiring problems. To address these concerns, owners may need to remove the interior panel to access the latch, replace the faulty lock relay, or check battery voltage and wiring to resolve the issues effectively.