NHTSA Office of Defects Investigation

Investigation C89001: THROTTLE NON-RETURN

Closed

NHTSA's Office of Defects Investigation opened investigation C89001 on March 6, 1989 and closed it on January 16, 1990. NHTSA's investigations file lists 14 models from 5 makes for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number: C89001
Investigation type: NHTSA investigation
Status: Closed January 16, 1990
Opened: March 6, 1989
Closed: January 16, 1990
Vehicle or equipment manufacturer: General Motors, LLC
Component: Vehicle Speed Control — Linkages
Vehicles and equipment: 14 models from 5 makes, including the Buick Lesabre and Buick Regal

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

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for investigation C89001. 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

Buick Lesabre
- 1984, 1985, 1986, 1987, 1988
Buick Regal
- 1984, 1985, 1986, 1987, 1988
Buick Riviera
- 1984, 1985, 1986, 1987, 1988

All Buick recalls

Cadillac

Cadillac Brougham
- 1984, 1985, 1986, 1987, 1988
Cadillac Eldorado
- 1984, 1985, 1986, 1987, 1988
Cadillac Seville
- 1984, 1985, 1986, 1987, 1988

All Cadillac recalls

Chevrolet

Chevrolet Caprice
- 1984, 1985, 1986, 1987, 1988
Chevrolet Monte Carlo
- 1984, 1985, 1986, 1987, 1988

All Chevrolet recalls

Oldsmobile

Oldsmobile 88
- 1984, 1985, 1986, 1987, 1988
Oldsmobile 98
- 1984, 1985, 1986, 1987, 1988
Oldsmobile Cutlass
- 1984, 1985, 1986, 1987, 1988
Oldsmobile Toronado
- 1984, 1985, 1986, 1987, 1988

All Oldsmobile recalls

Pontiac

Pontiac Grand Prix
- 1984, 1985, 1986, 1987, 1988
Pontiac Parisienne
- 1984, 1985, 1986, 1987, 1988

All Pontiac 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 C89001

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.