The 2022 Chevrolet Silverado's Lane Keep Assist (LKA) with Lane Departure Warning provides steering guidance to help keep the truck in its lane. When LKA stops working, understanding the system's requirements and limitations helps identify whether conditions or a fault is responsible.
Silverado Lane Keep Assist Operation
LKA uses the forward-facing camera behind the windshield to monitor lane markings. When the system detects unintentional drift toward a lane line without turn signal activation, it provides gentle steering torque to guide the truck back. The feature can be enabled or disabled via the steering wheel button or settings.
Conditions Preventing LKA Operation
Multiple factors can prevent LKA from working. Speed must be within operating range (typically above 35-40 mph). Lane markings must be visible to the camera. The system must be enabled in settings. The camera must have clear visibility—dirt, fog, and direct sunlight can impair detection.
Truck-Specific Considerations
The Silverado's LKA may behave differently under load or when towing. The system may reduce assistance or availability when payload or trailer dynamics require different steering response. This is intentional behavior, not a malfunction.
When Diagnosis Is Needed
If LKA never works despite meeting all conditions—highway speed, clear markings, system enabled, clean camera, no trailer—diagnosis is warranted. Warning lights or messages accompanying non-operation indicate detected faults requiring attention.