The P0571 code on your 2023 Jeep Wrangler indicates a malfunction in the brake switch circuit. This circuit provides brake pedal status to multiple systems including cruise control and shift interlock.
Brake Switch Importance
The brake switch tells various modules when you're pressing the brake pedal. This signal disengages cruise control, illuminates brake lights, allows shifting from park, and triggers other safety functions. A malfunction affects multiple systems.
Wrangler Off-Road Considerations
The Wrangler's rugged nature exposes it to more environmental stress than typical vehicles. The brake switch and its wiring may be affected by water fording, mud, vibration from off-road use, and general environmental exposure.
Circuit Malfunction Causes
The brake switch may have failed due to wear or damage. Water intrusion from off-road use can affect the switch. Wiring damage from vibration or environmental exposure. Connector corrosion from moisture exposure. Misadjustment after pedal assembly service.
Diagnostic Steps
Use Stellantis wiTECH to monitor brake switch signal. Press and release the brake—signal should change states reliably. Check brake lights function—if they work, one switch circuit is okay. Inspect the switch and connector for moisture damage. Verify switch adjustment is correct.