Chevrolet C047A
Software Update (Over the Air) for Adaptive Forward Lighting System Reprogram the Headlamp Control Module. Replace the Headlamp Control Module. PI1078 2013- 2014 ATS - Intermittent
Quick answer
Chevrolet C047A: Software Update (Over the Air) for Adaptive Forward Lighting System Reprogram the Headlamp Control Module. Replace the Headlamp Control Module. PI1078 2013- 2014 ATS - Intermittent
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does C047A mean?
Chevrolet C047A: Software Update (Over the Air) for Adaptive Forward Lighting System Reprogram the Headlamp Control Module. Replace the Headlamp Control Module. PI1078 2013- 2014 ATS - Intermittent
2. Technical explanation
The identity of C047A is verified for Chevrolet. Available evidence does not yet establish a narrower subsystem or component-level failure.
3. What system is affected?
Not yet established by verified evidence.
4. How serious is this code?
Not yet established by verified evidence. Urgency must be based on the exact vehicle warning and official guidance.
5. Symptoms you may notice
Not yet established by verified evidence.
6. Possible causes
Not yet established by verified evidence. A diagnostic identifier alone is not proof that a specific component has failed.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Preserve the exact diagnostic code and any accompanying vehicle warning before clearing anything.
- Follow the manufacturer instructions shown in the vehicle or owner/service documentation.
- Do not open or work on high-voltage components unless you are qualified and equipped for high-voltage service.
10. Step-by-step troubleshooting
- Record the exact code, warning text, vehicle model, model year, and operating condition when it appeared.
- Check the verified manufacturer or regulator source linked on this page for code-specific instructions.
- Avoid replacing parts based only on the code; code-specific component tests are not inferred when evidence does not provide them.
- Escalate to qualified service when the warning persists, affects driving/charging, or manufacturer guidance requires service.
11. When to contact service
Qualified service should be contacted if the warning persists, returns after a normal manufacturer-permitted restart, or affects driving or charging.
12. What the service center may check
Not yet established by verified evidence.
13. Possible repair or resolution
Not yet established by verified evidence.
14. Affected vehicles
- Chevrolet Spark · 2011–2014 · US
- Chevrolet Volt · 2011–2014 · US
15. Related TSBs / service bulletins
- NHTSA: NHTSA Manufacturer Communication PDF 10118880: 13-00-89-004D
16. Recall information
No recall relationship is established by verified evidence.
17. Official manufacturer information
erator Control Module. Replace the Generator Control & Battery Module. 13142 2012- 2014 Sonic - Shifter Handle Knob Cracked and/or Will Not Operate While Shifting Out of Park Replace Shifter Handle. Replace Shifter Assembly. PI1086 2014 ATS - Engineering Information - Increased Steering Effort, Service Power Steering Message Displayed on DIC, DTCs C047A, C056D, C056E, C0544 or C0475 Set Contact Engineering as Requested. Replace the Steering Gear. PIE0271 1 2013 ATS - Software Update (Over the Air) for Adaptive Forward Lighting System Reprogram the Headlamp Control Module. Replace the Headlamp Control Module. PI1078 2013- 2014 ATS - Intermittent Service Power Steering Message on Vehicle Start Up C
19. Frequently asked questions
What does C047A mean?
Chevrolet C047A: Software Update (Over the Air) for Adaptive Forward Lighting System Reprogram the Headlamp Control Module. Replace the Headlamp Control Module. PI1078 2013- 2014 ATS - Intermittent
Can I drive with C047A?
Not yet established by verified evidence.
Can I charge with C047A?
Not yet established by verified evidence.
Does C047A require service?
Qualified service should be contacted if the warning persists, returns after a normal manufacturer-permitted restart, or affects driving or charging.