Electrical reliability in modern vehicles has traditionally meant designing for the absence of failure — and reacting with recalls when that design assumption breaks. This presentation argues that over-the-air updates are rewriting that model entirely: low-voltage electronics and ECU faults affecting autonomous vehicle systems can increasingly be mitigated and contained through firmware updates instead of physical recalls. The presenter explores the general considerations that separate a hardware-bound fault from one that can be addressed in software, the validation challenges that come with software-based containment, and how OTA is shifting field reliability from a slow, recall-driven process to a faster, more scalable solution.

• Why electrical reliability has historically been a recall-driven discipline, and what's structurally changing that model in software-defined vehicles
• How low-voltage electronics and ECU faults can affect functions supporting autonomous vehicle operation
• The general considerations that determine whether a fault is hardware-bound or can be addressed through software
• The open challenges in proving a software fix actually resolves a hardware-originated fault.
• How over-the-air updates are shifting field reliability from a slow, recall-driven process to a faster, scalable one.