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RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz AMG CLA35 2019–2026 — technical service bulletin

Bulletin LI54.21-P-080326 · NHTSA communication 11035217 · issued Jul 24, 2026

Technical service bulletin
communication type
Electrical System
component
2019–2026
model years
60
vehicle entries

Official summary

Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465: SW has been released. Update the FSAM to the latest SW version. 290, 118, 243, 247: Software is still in development. This fault code does not cause a drivability concern and will clear itself within 2-3 key cycles. The vehicle can be released back to the customer.

Vehicles covered

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.