EV Diagnostics
Verified EV diagnostic knowledge page

Chevrolet P0AE9

DTC P0BC3 Hybrid/EV Battery Temperature Sensor 5 Performance, DTC P0BC4 Hybrid/EV Battery Temperature Sensor 5 Circuit Low Vol

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService need is not established by the supplied evidence. If a diagnostic code is present, contact a qualified Chevrolet/EV service provider for code confirmation and diagnosis.
Confidence95%

Quick answer

For a 2013 Chevrolet Volt (US), the supplied verified GM/NHTSA bulletin evidence associates battery temperature sensor faults with DTC P0BC3 (Sensor 5 Performance) and P0BC4 (Sensor 5 Circuit Low Voltage). The supplied record is labeled P0AE9 but its canonical title contains P0BC3/P0BC4; this code mismatch is not resolved by the verified evidence.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does P0AE9 mean?

For a 2013 Chevrolet Volt (US), the supplied verified GM/NHTSA bulletin evidence associates battery temperature sensor faults with DTC P0BC3 (Sensor 5 Performance) and P0BC4 (Sensor 5 Circuit Low Voltage). The supplied record is labeled P0AE9 but its canonical title contains P0BC3/P0BC4; this code mismatch is not resolved by the verified evidence.

2. Technical explanation

Verified bulletin evidence identifies: P0BC3 — Hybrid/EV Battery Temperature Sensor 5 Performance; and P0BC4 — Hybrid/EV Battery Temperature Sensor 5 Circuit Low Voltage. The same evidence separately lists P0AE9 as Hybrid/EV Battery Temperature Sensor 4 Performance. Therefore, P0AE9 should not be represented as a Sensor 5 code based on this evidence.

3. What system is affected?

Hybrid/EV battery temperature sensing. The evidence distinguishes Battery Temperature Sensor 4 from Battery Temperature Sensor 5.

4. How serious is this code?

Not yet established by verified evidence.

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

  • Arrange professional diagnosis using applicable Chevrolet service information.
  • Do not attempt high-voltage battery or battery-sensor repair without qualified EV service training and procedures.

10. Step-by-step troubleshooting

  1. Confirm the exact stored DTC from the vehicle with an appropriate diagnostic scan tool.
  2. For this record, verify whether the actual DTC is P0AE9, P0BC3, or P0BC4, because the supplied diagnostic title and the verified bulletin evidence do not align.

11. When to contact service

Service need is not established by the supplied evidence. If a diagnostic code is present, contact a qualified Chevrolet/EV service provider for code confirmation and diagnosis.

12. What the service center may check

  • Confirm the exact DTC and any accompanying diagnostic information.
  • Use applicable Chevrolet service information for the confirmed code. Further specific checks are not established by verified evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 10155116, GM bulletin 18NA342, published November 19, 2018. The supplied evidence lists P0AE9 as Hybrid/EV Battery Temperature Sensor 4 Performance, and lists P0BC3/P0BC4 for Battery Temperature Sensor 5.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Applicable verified evidence: NHTSA manufacturer communication 10155116 (GM bulletin 18NA342): https://static.nhtsa.gov/odi/tsbs/2018/MC-10155116-9999.pdf. Supplied applicability: 2013 Chevrolet Volt, US.

19. Frequently asked questions

What does P0AE9 mean in the supplied verified bulletin evidence?

The supplied bulletin evidence lists P0AE9 as Hybrid/EV Battery Temperature Sensor 4 Performance.

What do P0BC3 and P0BC4 mean?

The supplied bulletin evidence lists P0BC3 as Hybrid/EV Battery Temperature Sensor 5 Performance and P0BC4 as Hybrid/EV Battery Temperature Sensor 5 Circuit Low Voltage.

Is this record applicable to a 2013 Chevrolet Volt in the United States?

Yes. The supplied applicability record identifies the 2013 Chevrolet Volt in the US.

Can I drive or charge the vehicle?

Not yet established by verified evidence.

20. Sources & verification

ReferenceVerified
Chevrolet P0AE9: DTC P0BC3 Hybrid/EV Battery Temperature Sensor 5… | EV Diagnostics