The Kia Telluride does not have a locking differential in the same sense as conventional 4x4 vehicles. In fact, the Kia Telluride comes with a multi-plate center clutch that allows for distribution of power between the front and rear wheels. When the clutch is fully engaged, in most cases there should be no slippage which means that power is distributed evenly (50/50) between the front and rear. However, there's always the possibility that the clutch can slip given enough of a torque differential between the front and the back. It can offer improved traction in poor road conditions.
A proper locking differential found in most traditional 4x4 vehicles/trucks, when engaged, physically locks the axles together which means they cannot spin at different rates. This is essential for many more rigorous off-road applications when you may have to rely on traction from a single wheel to get you unstuck.
This is exactly the type of misleading marketing that is described in many other comments. A clutch pack cannot physically lock axles together in the same way as a locking diff.
A proper locking differential found in most traditional 4x4 vehicles/trucks, when engaged, physically locks the axles together which means they cannot spin at different rates. This is essential for many more rigorous off-road applications when you may have to rely on traction from a single wheel to get you unstuck.
This is exactly the type of misleading marketing that is described in many other comments. A clutch pack cannot physically lock axles together in the same way as a locking diff.