Contradiction with Genesis 10:15-18
These verses identify the Canaanite settlements and families, showing a spread that was conquered in Joshua. The description of territory and conquests can seem different from Joshua 15:53.
Genesis 10:15-18: And Canaan begat Sidon his firstborn, and Heth, [Sidon: Heb. Tzidon]
Contradiction with Deuteronomy 7:1-2
God's command to destroy the Canaanite nations can contradict the survival or persistence of certain cities or peoples described in Joshua 15:53.
Deuteronomy 7:1-2: When the LORD thy God shall bring thee into the land whither thou goest to possess it, and hath cast out many nations before thee, the Hittites, and the Girgashites, and the Amorites, and the Canaanites, and the Perizzites, and the Hivites, and the Jebusites, seven nations greater and mightier than thou;
Contradiction with Judges 1:19
Describes Judah's inability to drive out the inhabitants of the valley, which contradicts the complete conquests often implied in Joshua, including in 15:53.
Judges 1:19: And the LORD was with Judah; and he drave out [the inhabitants of] the mountain; but could not drive out the inhabitants of the valley, because they had chariots of iron. [drave...: or, possessed the mountain]