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NHTSA safety investigation

NHTSA Investigation EA86006

Engineering Analysis · General Motors, LLC · SERVICE BRAKES, HYDRAULIC

ClosedEngineering Analysis

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.

Model years namedModel years in our database that NHTSA associated with this inquiry. Being named in an investigation says nothing about whether an individual vehicle has any problem.
39
12 models
Opened
Nov 27, 1985
Engineering Analysis
Closed
Nov 28, 1988
No associated recall recorded

What NHTSA is examining

The agency's own description of the inquiry, quoted as published

BRAKE BACKING PLATE

SUMMARY:GM IS CONDUCTING A VOLUNTARY RECALL CAMPAIGN (85V-048)INVOLVING 2,136,826 VEHICLES. THE RECALL IS LIMITED TO VEHICLES BUILT ATCERTAIN ASSEMBLY PLANTS WHICH, ACCORDING TO GM, OVERTORQUED THE BRAKEPIPE NUT,THEREBY OVERSTRESSING THE WHEEL CYLINDER SUPPORT AREA OF THEBACKING PLATE.ANALYSIS:FRONT BRAKES PROVIDE SUFFICIENT BRAKING FOR PASSENGER CARSIN MOST NON-EMERGENCY SITUATIONS. ALL AFFECTED TRUCKS ARE INCLUDED INTHE CURRENT RECALL.IN MOST CASES THE PROBLEM IS DISCOVERED DURING BRAKEMAINTENANCE.THE RECALL APPEARS TO COVER THOSE GROUPS OF CARS WITH THEHIGHEST FAILURE RATES.STATUS:ANALYZING GM IR RESPONSE AND NEW COMPLAINT DATA. DRAFT CLOSINGREPORT BY 5/15/88.===

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
EA86006
Investigation type
Engineering Analysis (EA)
Status
Closed
Manufacturer
General Motors, LLC
Component
SERVICE BRAKES, HYDRAULIC
Opened
Nov 27, 1985
Closed
Nov 28, 1988
Associated recall campaign
None recorded

Vehicles named in this investigation

39 model years across 12 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.