GMC · Canada · Crit
GMC K Series, C Series: Powertrain
Affects GMC K Series, C Series · 1988–1990 — about 120K vehicles.
The hazard
Certain vehicles may develop an abnormal pressure build-up in the transmission with the possibility of transmission fluid coming out of the filler tube onto hot engine parts resulting in a possible vehicle fire. Correction: Owners will be provided with a new dipstick with a lock-seal top and new owner manual instructions and graphics for checking the automatic transmission fluid level.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational