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Chevrolet P249D

The technician should follow SI diagnostics. If no cause for the concern is found or during diagnosis a leak check is required, power smoke diagnostic leakdetector GE-52250 can be

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Chevrolet/GM-qualified service provider for diagnosis under the applicable GM Service Information procedures. Promptness of service is not established by the supplied evidence.
Confidence95%

Quick answer

For Chevrolet, verified NHTSA-posted manufacturer communications list P249D among codes that may occur with a charge-air-cooler/induction-system leak concern. The documented direction is to follow GM Service Information (SI) diagnostics; if needed, a technician may use GE-52250 smoke-leak detection equipment to help locate leaks.

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

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DTC Chevrolet P249D Short ExplanationMaxidot Chevrolet

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1. What does P249D mean?

For Chevrolet, verified NHTSA-posted manufacturer communications list P249D among codes that may occur with a charge-air-cooler/induction-system leak concern. The documented direction is to follow GM Service Information (SI) diagnostics; if needed, a technician may use GE-52250 smoke-leak detection equipment to help locate leaks.

2. Technical explanation

The supplied diagnostic record does not provide a component-level definition of P249D beyond the stated SI diagnostic instruction. However, four NHTSA-posted GM manufacturer communications—PIP5684, PIP5684A, PIP5684B, and PIP5684C—list P249D in a group of possible current or history codes. Those communications state that the concern may be due to a leak in the charge air cooler or induction systems. They direct technicians to follow SI diagnostics and note that the GE-52250 power smoke diagnostic leak detector can be helpful when a leak check is required or no cause is initially found.

3. What system is affected?

Charge air cooler / induction systems, as described in the verified manufacturer communications.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The verified communications state that P249D may be present as a current or history diagnostic trouble code.
  • Specific driver-observable symptoms for P249D are not yet established by verified evidence.

6. Possible causes

  • A leak in the charge air cooler / induction systems may be a cause of the concern, according to GM communications PIP5684 through PIP5684C.
  • No other specific causes are established by the supplied verified evidence.

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 diagnosis using the applicable GM Service Information procedures.
  • Do not attempt high-voltage or other hazardous repairs based on this code page.
  • Record whether P249D is current or history and provide that information to the servicing technician.

10. Step-by-step troubleshooting

  1. A technician should follow SI diagnostics, per the verified GM communications.
  2. If no cause is found or SI diagnosis requires a leak check, the communications state that GE-52250 power smoke diagnostic leak-detection equipment can help locate leaks.
  3. Further diagnostic steps are not yet established by verified evidence.

11. When to contact service

Contact a Chevrolet/GM-qualified service provider for diagnosis under the applicable GM Service Information procedures. Promptness of service is not established by the supplied evidence.

12. What the service center may check

  • Confirm whether P249D is current or history.
  • Follow applicable GM SI diagnostics.
  • Evaluate for a charge-air-cooler or induction-system leak as directed by SI.
  • When required by diagnosis, use GE-52250 smoke-leak detection equipment to help locate leaks.

13. Possible repair or resolution

  • The verified evidence does not specify a particular repair.
  • Resolution should follow the cause identified through GM SI diagnostics.

14. Affected vehicles

15. Related TSBs / service bulletins

  • GM PIP5684, posted by NHTSA as Manufacturer Communication 10167455 on 2019-10-22: lists P249D among possible codes and states the concern may be due to a charge air cooler / induction-system leak. https://static.nhtsa.gov/odi/tsbs/2019/MC-10167455-9999.pdf
  • GM PIP5684A, posted by NHTSA as Manufacturer Communication 10176300 on 2020-05-05: same diagnostic direction. https://static.nhtsa.gov/odi/tsbs/2020/MC-10176300-9999.pdf
  • GM PIP5684B, posted by NHTSA as Manufacturer Communication 10178370 on 2020-07-13: same diagnostic direction. https://static.nhtsa.gov/odi/tsbs/2020/MC-10178370-9999.pdf
  • GM PIP5684C, posted by NHTSA as Manufacturer Communication 10182564 on 2020-10-22: same diagnostic direction. https://static.nhtsa.gov/odi/tsbs/2020/MC-10182564-9999.pdf

16. Recall information

  • No recall information was supplied as verified evidence.

17. Official manufacturer information

Verified applicability data identifies Chevrolet Bolt EV, Spark, and Volt vehicles in the United States for model years 2011–2018. The supplied evidence does not establish exact trim, powertrain, or VIN applicability. Official manufacturer communications are available through the listed NHTSA links.

19. Frequently asked questions

What does P249D mean in the supplied Chevrolet data?

The supplied record’s canonical text says to follow SI diagnostics. The verified GM communications list P249D among codes that may accompany a charge-air-cooler/induction-system leak concern.

What should a technician do?

Follow GM SI diagnostics. If no cause is found or a leak check is required during diagnosis, the communications state that GE-52250 smoke-leak detection equipment can be helpful in locating leaks.

Is it safe to drive or charge?

Not yet established by verified evidence.

Does P249D identify a specific failed part?

No. The supplied evidence identifies a possible charge-air-cooler/induction-system leak concern, but does not establish a specific failed part.

20. Sources & verification

ReferenceVerified
Chevrolet P249D: The technician should follow SI diagnostics. If no… | EV Diagnostics