C41 Factory-verified

Buick · Regular Production Option

Heater and defroster without air conditioning

Years 1989–90, 1998 Models 2 Factory citations 1
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Also described as HVAC, heater only

Also documented for ChevroletOldsmobilePontiacSaturn

Documented applications

This page aggregates every documented appearance of C41 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.