AccueilLI91.29-P-080554 · MERCEDES-BENZ, MERCEDES-MAYBACH
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.

Communications NHTSA ↗

Codes dans le document

Libellé du constructeur

Le libellé varie selon véhicule et suffixe ; ce n’est pas un diagnostic universel.

Mercedes-BenzB228678
“The control unit calibration has been lost or was not performed

NHTSA 11032704

Mercedes-MaybachB228678
“The control unit calibration has been lost or was not performed

NHTSA 11032704

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