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NHTSA safety investigation

NHTSA Investigation EA02036

Engineering Analysis · FREIGHTLINER LLC · SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

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.
9
2 models
Opened
Dec 11, 2002
Engineering Analysis
Closed
Jan 26, 2004
No associated recall recorded

What NHTSA is examining

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

ABS CORROSION EXTENDS STOPPING DIST

THE TONE RING TOOTH PROFILE OF AN UNCOATED HYDRAULIC DISC BRAKE DEGRADES AFTER EXPOSURE TO CORROSIVE ENVIRONMENTS.WHEN THE TONE RING TOOTH PROFILE HAS DEGRADED IN FREIGHTLINER VEHICLES, THE ABS WARNING LIGHT ILLUMINATES RELIABLY TO WARN THE OPERATOR TO HAVE THE ABS SYSTEM SERVICED.IN RESPONSE TO ODI'S INQUIRY, FREIGHTLINER HAS ISSUED INFORMATION TO ALL AFFECTED OWNERS THAT ALERTS OWNERS TO THE IMPORTANCE OF RESPONDING TO THE ILLUMINATED ABS WARNING LIGHT.FREIGHTLINER ADOPTED COATED ROTORS DURING 2002 (DATE VARIES BY MODEL). SINCE NEITHER ODI NOR FREIGHTLINER HAVE ACCURATE DATA TO FORECAST THE CORROSION RESISTANCE OF COATED ROTORS, ODI PLANS TO CONDUCT A FUTURE SURVEY AT FREIGHTLINER (IN 18-24 MONTHS) TO EVALUATE THE DURABILITY OF THE COATED ROTORS.

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
EA02036
Investigation type
Engineering Analysis (EA)
Status
Closed
Manufacturer
FREIGHTLINER LLC
Component
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
Opened
Dec 11, 2002
Closed
Jan 26, 2004
Associated recall campaign
None recorded

Vehicles named in this investigation

9 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.