Chevrolet Suburban: Powertrain

Affects Chevrolet Suburban · 1988–1990 — about 12K vehicles.

The hazard

NOTE: R/V SUBURBAN TRUCKS - 2 WHEEL AND 4 WHEEL DRIVE VEHICLES WITH AUTOMATIC TRANSMISSIONS. 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, NEW OWNER MANUAL INSTRUCTIONS, GRAPHICS FOR CHECKING THE AUTOMATIC TRANSMISSION FLUID LEVEL AND UPDATED INFORMATION ON TOWING WITH AN OVERDRIVE EQUIPPED AUTOMATIC TRANSMISSION.

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