P0576 Buick Cruise Control Input Circuit Low

P0577 Buick Cruise Control Input Circuit High

Possible causes
– Faulty Cruise Control Function Switch
– Cruise Control Function Switch harness is open or shorted
– Cruise Control Function Switch circuit poor electrical connection
What about the obd code?
The P0577 Buick codes is set when there is a malfunction with the cruise control system.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Cruise control system inoperative
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera