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Cadillac U222E

to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) fo

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact an authorized Cadillac/GM EV service facility, particularly if U222E returns after diagnostic clearing. The verified PIT6044 guidance directs the dealer to start a TAC case for a returning U222E.
Confidence95%

Quick answer

For 2023–2024 Cadillac LYRIQ vehicles in the United States, U222E is included in Cadillac/GM service communications PIT6044 and 23-NA-151. The supplied evidence does not establish a plain-language definition for U222E, drivability status, or charging status.

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 U222E mean?

For 2023–2024 Cadillac LYRIQ vehicles in the United States, U222E is included in Cadillac/GM service communications PIT6044 and 23-NA-151. The supplied evidence does not establish a plain-language definition for U222E, drivability status, or charging status.

2. Technical explanation

Verified NHTSA-posted GM communications list U222E among a group of DTCs addressed by PIT6044 revisions and bulletin 23-NA-151. PIT6044 directs technicians to use GDS2 to clear DTCs and, if U222E returns, open a Technical Assistance Center (TAC) case and reference the publication. For MY2023–2024 Cadillac LYRIQ, PIT6044 also references programming the K16 Battery Energy Control Module (BECM) according to Service Information, followed by a battery-negative-cable disconnection/connection procedure performed by trained service personnel. Bulletin 23-NA-151 includes U222E in a list of current or history DTCs for which technicians verify codes, inspect and document high-voltage-battery surge-tank coolant level, and record specified BECM parameters. The exact U222E fault definition is not established by the supplied verified evidence.

3. What system is affected?

Battery Energy Control Module (K16 BECM) and high-voltage-battery-related service procedures are referenced in the verified bulletins. The precise affected subsystem for U222E is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied evidence does not assign a severity level to U222E.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • Not yet established by 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 with an authorized Cadillac/GM EV service facility if U222E is present or returns.
  • Do not attempt high-voltage battery, BECM programming, or battery-cable service yourself; the cited bulletin specifies trained technicians and required tools/equipment.
  • Provide the service facility with the stored DTC status and reference PIT6044 and 23-NA-151.

10. Step-by-step troubleshooting

  1. A GM technician may verify whether U222E is current or history using the specified diagnostic equipment.
  2. The verified service information directs technicians to clear DTCs with GDS2; if U222E returns, open a TAC case and reference PIT6044.
  3. For MY2023–2024 LYRIQ, PIT6044 references K16 BECM programming in accordance with Service Information and a subsequent battery-negative-cable disconnection/connection procedure.
  4. Bulletin 23-NA-151 references documenting high-voltage-battery surge-tank coolant level and recording specified BECM parameters.

11. When to contact service

Contact an authorized Cadillac/GM EV service facility, particularly if U222E returns after diagnostic clearing. The verified PIT6044 guidance directs the dealer to start a TAC case for a returning U222E.

12. What the service center may check

  • Check whether U222E is current or history.
  • Use GDS2 to clear DTCs as directed in PIT6044.
  • If U222E returns, start a TAC case and reference PIT6044.
  • For the applicable 23-NA-151 procedure, document high-voltage-battery surge-tank coolant level and record the specified K16 BECM parameters.
  • For MY2023–2024 LYRIQ, follow Service Information for K16 BECM programming and the referenced post-programming battery-negative-cable procedure.

13. Possible repair or resolution

  • Not yet established by verified evidence for every U222E occurrence.
  • The verified PIT6044 service path includes BECM programming for MY2023–2024 LYRIQ, followed by the referenced service procedure. If listed DTCs, including U222E, return, GM directs the technician to open a TAC case.

14. Affected vehicles

15. Related TSBs / service bulletins

  • PIT6044F, NHTSA Manufacturer Communication 10249261, published December 1, 2023: Lists U222E; directs a TAC case if it returns after the outlined procedure. https://static.nhtsa.gov/odi/tsbs/2023/MC-10249261-9999.pdf
  • PIT6044E, NHTSA Manufacturer Communication 10246030, published October 30, 2023: Lists U222E and directs a TAC case if it returns. https://static.nhtsa.gov/odi/tsbs/2023/MC-10246030-9999.pdf
  • PIT6044D, NHTSA Manufacturer Communication 10246021, published October 26, 2023: Lists U222E and references BECM programming for MY2023–2024 LYRIQ. https://static.nhtsa.gov/odi/tsbs/2023/MC-10246021-9999.pdf
  • 23-NA-151, NHTSA Manufacturer Communication 10245234, published October 19, 2023: Includes U222E in the specified current/history DTC list and references high-voltage-battery coolant and BECM data checks. https://static.nhtsa.gov/odi/tsbs/2023/MC-10245234-0001.pdf
  • 23-NA-151, NHTSA Manufacturer Communication 10243714, published September 5, 2023: Includes U222E in the specified current DTC list and references high-voltage-battery coolant and BECM data checks. https://static.nhtsa.gov/odi/tsbs/2023/MC-10243714-0001.pdf
  • PIT6044A, NHTSA Manufacturer Communication 10242294, published August 9, 2023: Lists U222E and directs a TAC case if it returns. https://static.nhtsa.gov/odi/tsbs/2023/MC-10242294-9999.pdf
  • PIT6044, NHTSA Manufacturer Communication 10242284, published August 3, 2023: Lists U222E and directs a TAC case if it returns. https://static.nhtsa.gov/odi/tsbs/2023/MC-10242284-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified sources are NHTSA-hosted GM manufacturer communications. The supplied applicability data identifies Cadillac LYRIQ model years 2023–2024 in the US. Warranty eligibility is not determined by this page; PIT6044 instructs dealers to consult the Applicable Warranties section of Investigate Vehicle History (IVH).

19. Frequently asked questions

What does Cadillac U222E mean?

The exact plain-language definition is not established by the supplied verified evidence. U222E is listed in GM bulletins PIT6044 and 23-NA-151 for Cadillac LYRIQ service diagnosis.

Can I drive with U222E?

Not yet established by verified evidence.

Can I charge with U222E?

Not yet established by verified evidence.

What should happen if U222E returns after it is cleared?

PIT6044 directs the GM technician to start a TAC case and reference the publication.

Is there a service bulletin for U222E?

Yes. The supplied evidence includes PIT6044 revisions and bulletin 23-NA-151, both posted by NHTSA as GM manufacturer communications.

20. Sources & verification

Verified
Cadillac U222E: to-Bumper coverage (Canada Base Warranty coverage),… | EV Diagnostics