Cadillac U2B7E
U3620, U3622, U3624, U3626, U3628, U362A, U362C, U362E, U3630, U3632, U3634
Quick answer
For 2023–2024 Cadillac LYRIQ vehicles in the US, U2B7E appears in official GM/NHTSA manufacturer communications PIE0788B and PIE0788C. The verified material identifies it in a list of DTCs removed from the communication; it does not establish a fault meaning, symptoms, cause, driving or charging safety, or a repair.
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 U2B7E mean?
For 2023–2024 Cadillac LYRIQ vehicles in the US, U2B7E appears in official GM/NHTSA manufacturer communications PIE0788B and PIE0788C. The verified material identifies it in a list of DTCs removed from the communication; it does not establish a fault meaning, symptoms, cause, driving or charging safety, or a repair.
2. Technical explanation
The supplied diagnostic record labels U2B7E with the canonical title and meaning: “U3620, U3622, U3624, U3626, U3628, U362A, U362C, U362E, U3630, U3632, U3634.” No system name or severity is provided. NHTSA-hosted manufacturer communications PIE0788B (June 10, 2024) and revised PIE0788C (June 28, 2024) state that U2B7E was among DTCs removed from the communication. PIE0788C also states that the need to gather further information from the field had ended. The supplied evidence does not provide diagnostic criteria, a subsystem interpretation, or a repair procedure for U2B7E.
3. What system is affected?
Not yet established by verified evidence.
4. How serious is this code?
Unknown. The supplied diagnostic record lists severity as unknown.
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?
Unknown. The supplied diagnostic record lists safe-to-drive status as unknown.
8. Can I charge the vehicle?
Unknown. The supplied diagnostic record lists safe-to-charge status as unknown.
9. What you can safely do
- Use the vehicle information and current warning messages as applicable.
- Have a qualified Cadillac/GM service provider evaluate the vehicle if the code is present or warnings occur.
- Do not attempt high-voltage diagnosis or repair based on the supplied evidence.
10. Step-by-step troubleshooting
- No evidence-backed troubleshooting procedure is supplied for U2B7E.
- A service provider can confirm the stored DTCs and assess the vehicle using manufacturer diagnostic information.
11. When to contact service
Service requirement is unknown in the supplied diagnostic record. Contact a Cadillac/GM service provider for vehicle-specific assessment if U2B7E is present.
12. What the service center may check
- Confirm whether U2B7E is currently stored and review accompanying diagnostic information. Further specific checks are not established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Cadillac LYRIQ · 2023–2024 · US
15. Related TSBs / service bulletins
- PIE0788B, published June 10, 2024 and hosted by NHTSA as manufacturer communication 11004345, lists U2B7E among DTCs removed from the communication. It also lists U3620, U3622, U3624, U3626, U3628, U362A, U362C, U362E, U3630, U3632, and U3634 as additional keywords.
- PIE0788C, revised June 26, 2024 and published June 28, 2024, hosted by NHTSA as manufacturer communication 11004943, lists U2B7E among DTCs removed from the communication and states that the need to gather further information from the field had ended.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Applicable verified evidence: NHTSA manufacturer communication PIE0788B: https://static.nhtsa.gov/odi/tsbs/2024/MC-11004345-0001.pdf ; NHTSA manufacturer communication PIE0788C: https://static.nhtsa.gov/odi/tsbs/2024/MC-11004943-0001.pdf
19. Frequently asked questions
What does U2B7E mean on a Cadillac LYRIQ?
The supplied diagnostic record associates U2B7E with “U3620, U3622, U3624, U3626, U3628, U362A, U362C, U362E, U3630, U3632, U3634.” A specific fault meaning is not yet established by the verified evidence.
Which vehicles are covered by the verified evidence?
The supplied applicability record identifies US-market 2023–2024 Cadillac LYRIQ vehicles.
Is U2B7E covered by a service bulletin?
U2B7E is listed in NHTSA-hosted manufacturer communications PIE0788B and PIE0788C as a DTC removed from those communications. The supplied evidence does not establish a repair or corrective action for this code.
Can I drive or charge with U2B7E?
Not yet established by verified evidence. Both safe-to-drive and safe-to-charge status are recorded as unknown.