Paige’s Mother, Nancy, and her husband, Lance, say that when their daughter, Paige, left her then 18-month-old daughter with them and started living with her girlfriend in a vehicle that they own, they put a tracking device on it so they could monitor her whereabouts. The couple says they’re convinced she’s been using the car to deal drugs, which Paige denies.

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Nancy says Paige has told them since they won’t allow her girlfriend to move into their house with her, she’ll leave her daughter with them again to resume living with the woman in the car.

WATCH: Why Parents Say They Put A Tracking Device On Their 23-Year-Old Daughter’s Car

“What are you prepared to do if that’s her position?” Dr. Phil asks them in the video above.

“This ends now,” responds Lance, who says they’ll take the car away. “And we’re ready to file now for protective custody of our grandchild,” he adds.

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Woman Says She’d Move Back Into Her Car, ‘If It Meant Keeping My Girlfriend From Being Homeless’