Pontiac Bonneville 1997 — technical service bulletin
Bulletin 638315 · NHTSA communication 51237 · issued Jan 1, 1997
Technical service bulletin
communication type
Electrical System
component
1997
model years
1
vehicle entries
Official summary
Check gages lamp illuminates with gage reading 1/4 tank of fuel left (replace ipc cluster). *tw
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.