P0570 Buick Cruise Control Accel Signal Malfunction

P0571 Buick Brake Light Switch Plausibility

Possible causes
– Faulty Brake Switch
– Misadjusted brake switch
– Brake Switch harness is open or shorted
– Brake Switch circuit poor electrical connection
What about the obd code?
The P0571 Buick codes is set when the stop light switch does not turn off even once the vehicle is driven.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Stop light inoperative
– Cruise control system inoperative
P0571 Buick Description

When the brake pedal is depressed, the stop light switch sends a signal to the Engine Control Module (ECM). When the ECM receives this signal, it cancels the cruise control.

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