NHTSA Office of Defects Investigation

Defect Petition DP83-017: REAR WHEEL LOCKUP INVOLVING AFTERMARKET

  • Closed

NHTSA's Office of Defects Investigation opened Defect Petition DP83-017 on September 1, 1983 and closed it on September 22, 1983. NHTSA's investigations file lists the Buick Skylark and Chevrolet Citation for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
DP83-017 (also written DP83017)
Investigation type
Defect Petition A petition asking NHTSA to open a defect investigation; NHTSA grants or denies it, and granting one opens an investigation.
Status
Closed September 22, 1983
Opened
Closed
Vehicle or equipment manufacturer
General Motors, LLC
Component
Service Brakes, Hydraulic
Vehicles and equipment
Buick Skylark and Chevrolet Citation

A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Defect Petition DP83-017.

REAR WHEEL LOCKUP INVOLVING AFTERMARKET REAR BRAKE LININGS

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Defect Petition DP83-017. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.

Buick

All Buick recalls

Chevrolet

  • Chevrolet Citation

    • 1980
All Chevrolet recalls

What an NHTSA investigation is

NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.

An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.

Free VIN check: decode a VIN to see its year, make and model.

Sources

NHTSA's investigation record for DP83-017

Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.