Chevrolet Lumina 1994–1995 — technical service bulletin
Bulletin 576201 · NHTSA communication 45851 · issued Jun 1, 1995
Technical service bulletin
communication type
Engine and Engine Cooling
component
1994–1995
model years
7
vehicle entries
Official summary
Coolant leak at the front cover outlet to heater inlet nipple (new torque specification). *sd
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.