Toyota Tacoma 1996–1999 — technical service bulletin
Bulletin EG00699 · NHTSA communication 606186 · issued Jun 18, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1996–1999
model years
4
vehicle entries
Official summary
Subject regarding 5vz oxygen sensor improvement for vehicles built before certain vin ranges. *tt
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.