B0ACC - Understanding the B0ACC Code in 2015-2020 Chevrolet and GMC Models

Quick Answer

B0ACC means: B0ACC indicates a malfunction in the Adaptive Cruise Control system.

Fix: Check and replace faulty components Cost: $300 - $600 Time: 90-180 minutes

Can I drive with B0ACC? Immediate attention is recommended to ensure safe driving.

Common Questions

What does B0ACC mean and how does it affect my car?

The B0ACC code indicates a malfunction in the Adaptive Cruise Control system, affecting its ability to maintain a safe distance from other vehicles. This can lead to manual speed control, increased driver fatigue, and potential safety hazards during highway driving.

What are the most common causes of B0ACC and how much does it cost to fix?

Common causes include faulty sensors, wiring issues, and control module errors. Repair costs can range from $150 for wiring repairs to $600 for sensor replacements, depending on the exact issue.

Can I drive my car with B0ACC or should I stop immediately?

While you can drive your car, it's recommended to avoid using cruise control until the issue is resolved. Ignoring the code may cause safety concerns, particularly during highway driving.

How can I diagnose B0ACC myself using GeekOBD APP?

With the GeekOBD APP, start by scanning your vehicle for OBD2 codes. Check for the B0ACC code and look at the freeze frame data for additional context. Follow the diagnostic steps outlined to troubleshoot the issue.

What vehicles are most commonly affected by B0ACC?

Commonly affected vehicles include the 2015-2020 Chevrolet Silverado and GMC Sierra models. It's also worth checking for any recalls or service bulletins related to your specific vehicle.

How can I prevent B0ACC from happening again?

Regular maintenance, including cleaning the sensors and checking wiring for wear, can help prevent the B0ACC code from reappearing. Additionally, keeping up with software updates for your vehicle's onboard systems is crucial.

What is B0ACC?

The Diagnostic Trouble Code (DTC) B0ACC signifies an issue with the Adaptive Cruise Control system in vehicles, particularly prevalent in models like the 2015-2020 Chevrolet Silverado and GMC Sierra. This code indicates that the vehicle's advanced driver-assistance systems (ADAS) have detected a malfunction related to the Adaptive Cruise Control feature. This system is designed to automatically adjust the vehicle's speed to maintain a safe distance from the car ahead. When the B0ACC code is triggered, it may lead to the Adaptive Cruise Control becoming inoperative, which can significantly affect driving comfort and safety. The root causes can range from sensor malfunctions to wiring issues or faults within the control module itself. Ignoring this code can lead to erratic vehicle behavior, potential safety hazards during highway driving, and increased wear on the vehicle's braking system. Addressing the B0ACC code promptly is crucial for maintaining the reliability of your vehicle’s cruise control functions.

System: B - Body (Airbags, Lighting, Security, Climate Control)

Symptoms

Common symptoms when B0ACC is present:

  • The Adaptive Cruise Control feature may stop functioning, leading to manual speed control requirements.
  • Warning lights on the dashboard related to cruise control may illuminate, causing concern.
  • The vehicle may feel unpredictable during highway driving, as the cruise control fails to maintain speed.
  • Increased driver fatigue due to lack of cruise control functionality on long trips.
  • Potential for sudden braking or acceleration issues if the system attempts to engage unexpectedly.

Possible Causes

Most common causes of B0ACC (ordered by frequency):

  1. The most common cause of B0ACC is a faulty radar or camera sensor, with an approximate likelihood of 60%. These sensors can be obstructed by dirt or debris or may fail due to age.
  2. Another frequent cause is wiring issues, accounting for about 25% of occurrences. Damaged wiring or poor connections can disrupt signals between the cruise control components.
  3. Control module errors can also lead to this code, with a 10% likelihood. Software glitches or module failure may require reprogramming or replacement.
  4. Less common but serious causes include problems with the vehicle's onboard computer systems, which may require a dealership diagnosis.
  5. A rare cause might be environmental factors affecting sensor performance, such as heavy rain or fog, which can temporarily disable adaptive systems.

B0ACC Repair Costs

Cost Breakdown by Repair Type

Sensor Replacement

Replacing a faulty radar or camera sensor, which is often the most common repair.

  • Total: $300 - $600
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring and connectors within the cruise control system.

  • Total: $150 - $400
  • Success rate: 75%
Control Module Reprogramming

Reprogramming or replacing the cruise control module if it is malfunctioning.

  • Total: $200 - $500
  • Success rate: 70%
Money-Saving Tips for B0ACC
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional B0ACC Diagnosis Process

Follow these systematic steps to accurately diagnose B0ACC. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Conduct a visual inspection for any visible damage, loose connections, or corrosion on wiring related to the cruise control system (5-10 minutes)

Step 1: Conduct a visual inspection for any visible damage, loose connections, or corrosion on wiring related to the cruise control system (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan

Step 2: Use the GeekOBD APP to perform an OBD2 scan. This will retrieve all stored codes and any freeze frame data to help contextualize the issue (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Test suspected components, such as the radar sensor or control module, using a multimeter or specialized diagnostic tools (20-30 minutes)

Step 3: Test suspected components, such as the radar sensor or control module, using a multimeter or specialized diagnostic tools (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: After repairs, conduct a system function test to ensure all components are operating correctly and clear any codes from the system (10-15 minutes)

Step 4: After repairs, conduct a system function test to ensure all components are operating correctly and clear any codes from the system (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Perform a road test under various conditions to confirm the repair's effectiveness and ensure the cruise control operates smoothly (15-20 minutes)

Step 5: Perform a road test under various conditions to confirm the repair's effectiveness and ensure the cruise control operates smoothly (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Adaptive Cruise Control Sensor Replacement in 2018 Chevrolet Silverado

Vehicle: 2018 Chevrolet Silverado, 50,000 miles

Problem: Customer reported that the Adaptive Cruise Control was non-functional after a recent storm.

Diagnosis: Diagnostic scan revealed B0ACC code along with a freeze frame indicating sensor failure.

Solution: Replaced the faulty radar sensor and recalibrated the system.

Cost: $450 (sensor $350, labor $100)

Result: Cruise control function restored, customer satisfied with timely repair.

Case Study 2: Wiring Repair for 2016 GMC Sierra

Vehicle: 2016 GMC Sierra, 75,000 miles

Problem: Customer noticed intermittent cruise control failures and dashboard warnings.

Diagnosis: Found damaged wiring in the cruise control harness causing signal loss.

Solution: Repaired and replaced the damaged wiring with new connectors.

Cost: $250 (labor $150, parts $100)

Result: Cruise control functionality improved, customer reported no further issues.

Diagnose B0ACC

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: B0ACC
System: Body (Airbags, Lighting, Security, Climate Control)
Severity: HIGH
Category: Body Codes