NHTSA safety investigation
NHTSA Investigation EA87009
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 BRAKES
ANALYSIS: THE PROPOSED GM CHANGES SHOULD REDUCE THE FRONT-BIAS IN THEREAR BRAKE SYSTEM.HOWEVER THERE IS NO INDICATION THAT GM WILL RETROFITTHE 1985 AND 1986 MODEL YEAR VEHICLES.REPORTS INDICATE THAT THE PROBLEMMAY NOT LIE IN THE BRAKE BIASING SYSTEM, BUT RATHER IN MALFUNCTIONINGOR IMPROPERLY DESIGNED REAR BRAKE ADJUSTERS.STATUS: ANALYZING RESPONSE FROM GM DATED 5/12/87.AWAITING REPLY FROM NHTSA'S LEGAL STAFF CONCERNING GM'S RESPONSE.TOLD TO SIT ON IT A WHILE BY MR. PARKER AT 8/20/87 BRIEFING.AFTER LEGAL'S REPLY, THE DATA WILL BE UPDATED AND AN ACTIONDECISION WILL BE FORWARDED FOR SUPERVISOR'S REVIEW.===
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
- EA87009
- Investigation type
- Engineering Analysis (EA)
- Status
- Closed
- Manufacturer
- General Motors, LLC
- Component
- SERVICE BRAKES, HYDRAULIC
- Opened
- Jan 21, 1987
- Closed
- Aug 16, 1988
- Associated recall campaign
- None recorded
Vehicles named in this investigation
4 model years across 2 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.