MERCEDES-BENZ, MERCEDES-MAYBACH
LI91.29-P-080554
Communications du constructeur
- Date de publication
- 2026-05-15
- Reçu par la NHTSA
- 2026-05-15
- Identifiants NHTSA
- 11032704
Résumé du constructeur
Texte original en anglais
Complaint One or more seat functions are restricted or inoperative. This may include:
• Seat memory
• Automatic seat adjustment
• Easy Entry/Exit
• Head restraint presetting
• Collision avoidance with bench seat at rear
• Actuation by other vehicle systems Seat normalization is missing, and fault code B228678 – “The control unit calibration has been lost or was not performed. Adaptation or adjustment is not correct.” is stored in the seat control unit. Additional fault codes may also be present. Cause The condition is currently under investigation. Remedy Process any additional faults first.
• If a clear cause is found (for example, a failed component, wiring issue, or connector concern), repair that issue as required. If no root cause can be determined:
• Do NOT perform Initial Start-up, Software Update, or Normalization of the Control Unit
• Create a control unit log for the affected seat control unit.
• Open a TIPS case to the Body/Chassis/Entertainment inboxand attach the control unit log for further analysis.
• Seat memory
• Automatic seat adjustment
• Easy Entry/Exit
• Head restraint presetting
• Collision avoidance with bench seat at rear
• Actuation by other vehicle systems Seat normalization is missing, and fault code B228678 – “The control unit calibration has been lost or was not performed. Adaptation or adjustment is not correct.” is stored in the seat control unit. Additional fault codes may also be present. Cause The condition is currently under investigation. Remedy Process any additional faults first.
• If a clear cause is found (for example, a failed component, wiring issue, or connector concern), repair that issue as required. If no root cause can be determined:
• Do NOT perform Initial Start-up, Software Update, or Normalization of the Control Unit
• Create a control unit log for the affected seat control unit.
• Open a TIPS case to the Body/Chassis/Entertainment inboxand attach the control unit log for further analysis.
Codes dans le document
Libellé du constructeur
Le libellé varie selon véhicule et suffixe ; ce n’est pas un diagnostic universel.
Mercedes-Benz
B228678“The control unit calibration has been lost or was not performedMercedes-Maybach
B228678“The control unit calibration has been lost or was not performedVérifier les véhicules concernés
Un véhicule répertorié est une piste. Vérifiez moteur, période de production et logiciel dans les informations du constructeur.
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