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Jeep B1BA8

00 Diagnostic Trouble Code (DTC) will set for loss of calibration. The liftgate module will be set with the max full travel position This d

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService is appropriate, particularly when B1BA8-00 follows Power Liftgate Module replacement. The supplied evidence does not state whether service is mandatory.
Confidence95%

Quick answer

B1BA8-00 is documented by Jeep/NHTSA material as a power liftgate module calibration-related DTC. The verified bulletin states it can set for loss of calibration if Power Liftgate Module (PLGM) calibration is not performed after PLGM replacement.

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 B1BA8 mean?

B1BA8-00 is documented by Jeep/NHTSA material as a power liftgate module calibration-related DTC. The verified bulletin states it can set for loss of calibration if Power Liftgate Module (PLGM) calibration is not performed after PLGM replacement.

2. Technical explanation

The supplied official manufacturer communication says: “Perform the Power Liftgate Module calibration after a PLGM module replacement, otherwise the B1BA8-00 Diagnostic Trouble Code (DTC) will set for loss of calibration.” It also states that the liftgate module will be set with the maximum full-travel position. The supplied evidence does not establish other causes or a complete diagnostic procedure.

3. What system is affected?

Power liftgate / Power Liftgate Module (PLGM).

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • Loss of Power Liftgate Module calibration after PLGM replacement when the required PLGM calibration has not been performed.

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 or service by a qualified Jeep service provider if B1BA8-00 is present.
  • Do not assume that the code itself establishes a driving or charging restriction; those statuses are not established by the supplied evidence.

10. Step-by-step troubleshooting

  1. Verify whether the Power Liftgate Module was replaced.
  2. If the PLGM was replaced, verify that Power Liftgate Module calibration was performed after replacement.
  3. Use the applicable manufacturer service information for calibration and diagnosis.

11. When to contact service

Service is appropriate, particularly when B1BA8-00 follows Power Liftgate Module replacement. The supplied evidence does not state whether service is mandatory.

12. What the service center may check

  • Confirm B1BA8-00 is stored.
  • Confirm whether the PLGM has been replaced.
  • Check whether PLGM calibration was completed after replacement.
  • Perform the applicable Power Liftgate Module calibration procedure using manufacturer service information.

13. Possible repair or resolution

  • Perform Power Liftgate Module calibration after PLGM replacement. The supplied evidence identifies this as necessary to prevent B1BA8-00 from setting for loss of calibration.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 11033899: S2608000026, published June 5, 2026. It states that PLGM calibration must be performed after PLGM replacement or B1BA8-00 will set for loss of calibration.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official source: NHTSA Manufacturer Communication PDF 11033899: S2608000026, https://static.nhtsa.gov/odi/tsbs/2026/MC-11033899-0001.pdf

19. Frequently asked questions

What does B1BA8-00 mean?

The supplied Jeep/NHTSA communication identifies B1BA8-00 as setting for loss of calibration when required Power Liftgate Module calibration is not performed after PLGM replacement.

What should be done after replacing the Power Liftgate Module?

The verified communication says to perform Power Liftgate Module calibration after replacement.

Can I drive with B1BA8-00?

Not yet established by verified evidence.

Does B1BA8-00 affect EV charging?

Not yet established by verified evidence.

20. Sources & verification

Verified
Jeep B1BA8: 00 Diagnostic Trouble Code (DTC) will set for loss of… | EV Diagnostics