Ford Expedition 2022 Owner's Manual page 308

Lane Keeping System
Why does the vehicle not come back toward the middle of the lane, as expected, in the
Aid, or Aid + Alert mode?
High cross winds are present.
There is a large road crown.
Rough roads, grooves or shoulder drop-offs.
Heavy, uneven loading of the vehicle or improper tire inflation pressure.
You changed the tires or modified the suspension.
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2022 Expedition (TB8) Canada/United States of America, enUSA, Edition date: 202109, First-Printing