Rear Parking Sensor Circuit
2016-2016 Chevrolet Impala 2.5L I4 Ecotec
The 2016 Chevrolet Impala is equipped with a 2.5L inline-4 engine. Below you'll find detailed b2201 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Malfunction in the rear parking/proximity sensor system.
Symptoms
- Rear parking sensors not working
- Constant false alarm beeping when reversing
- Parking display shows error
- Sensor reads incorrectly
Common Causes
- Faulty ultrasonic sensor
- Sensor obstructed by dirt or snow
- Wiring damage from trailer hitch installation
- Module failure
- Bumper replacement with incorrect sensor gaps
Diagnostic Steps
- Clean rear sensors thoroughly
- Test each sensor with scan tool
- Inspect wiring (especially if trailer hitch installed)
- Check sensor seating in bumper
- Test parking assist module
Repair Notes
Replace faulty sensor. Clean sensors. Check for wiring damage from aftermarket trailer hitch.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0005Driver Knee Airbag Deployment Circuit
B2201 on Other Vehicles
Chevrolet Astro
2005-2005 4.3L V6 Vortec
Chevrolet Avalanche
2005-2005 5.3L V8 Vortec
Chevrolet Avalanche
2005-2005 8.1L V8 Vortec
Chevrolet Avalanche
2006-2006 5.3L V8 Vortec
Chevrolet Avalanche
2006-2006 8.1L V8 Vortec
Chevrolet Avalanche
2007-2007 5.3L V8 Vortec
Chevrolet Avalanche
2007-2007 6.0L V8 Vortec
Chevrolet Avalanche
2008-2008 5.3L V8 Vortec
Common Questions
What does code B2201 mean on a 2016-2016 Chevrolet Impala?
B2201 stands for "Rear Parking Sensor Circuit". Malfunction in the rear parking/proximity sensor system.
What are the symptoms of B2201 on a Chevrolet Impala?
Common symptoms of B2201 include: Rear parking sensors not working, Constant false alarm beeping when reversing, Parking display shows error, Sensor reads incorrectly.
What causes B2201 on a 2016-2016 Chevrolet Impala?
Common causes of B2201 include: Faulty ultrasonic sensor, Sensor obstructed by dirt or snow, Wiring damage from trailer hitch installation, Module failure, Bumper replacement with incorrect sensor gaps.
Last updated: March 2026
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