What is Tier-1 Supplier?
A direct supplier to the OEM. They deliver batteries, ADAS modules, interiors, and other integrated subsystems for the vehicle program.
tier 2 → tier 1 → carmaker
A Tier-1 supplier sells directly to...
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In real work
Tier-1 supplier integration call: ZF needs our CAN signal list frozen by Friday for their domain controller bring-up.
In the illustration
Loose chips and brackets drop into the tier-1 press, which seals one finished module and slides it directly onto the carmaker's line.
Draft the brief in your engineering tools for a tier-1 supplier bidding on the battery module: the interfaces, the test evidence they must deliver, and the change process.
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