NHTSA safety investigation
NHTSA Investigation EA89028
Engineering Analysis · General Motors, LLC · SERVICE BRAKES, HYDRAULIC
An investigation is not a finding that a defect exists.
NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
What NHTSA is examining
The agency's own description of the inquiry, quoted as published
REAR BRAKE PIN
SUMMARY:THESE VEHICLES HAVE REAR DRUM BRAKES.THE PARKING LEVER PIVOTPIN IS HELD BY AN E RING.WHEN THE RING FAILS, PARTS OF THE RING ANDPIN FALL LOOSE INTO THE DRUM AND MAY JAM THE BRAKE, LOCKING THE WHEEL.A STRONGER E RING IS USED IN 1988 AND NEWER CARS.THIS INVESTIGATIONHAS BEEN EXPANDED TO INCLUDE GMS C BODY CARS LISTED ABOVE (E RING COMMONTO ALL CARS SHOWN).===
An investigation is a separate record from a recall and from a manufacturer communication. A manufacturer campaign to repair a safety defect or a failure to meet a federal safety standard.
Investigation details
Identifiers, dates and outcome as recorded by NHTSA
- Action number
- EA89028
- Investigation type
- Engineering Analysis (EA)
- Status
- Closed
- Manufacturer
- General Motors, LLC
- Component
- SERVICE BRAKES, HYDRAULIC
- Opened
- Jul 28, 1989
- Closed
- Jul 27, 1990
- Associated recall campaign
- None recorded
Vehicles named in this investigation
12 model years across 6 models
Being named here means NHTSA included the vehicle in the scope of its inquiry. It is not a statement that these vehicles have a defect.