Investigations
RISK OF ROLLOVER
NHTSA Defect Petition DP96011 — closed, opened 1996-08-20 and involving the ISUZU TROOPER.
NHTSA investigation DP96011 is a Defect Petition opened on 1996-08-20 and currently closed. The subject of record is ISUZU TROOPER, which places this file inside the Office of Defects Investigation queue for ISUZU. Latest activity on this investigation was logged on 1997-07-24 — NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
A Defect Petition like DP96011 starts when a person or group formally asks NHTSA to investigate a specific alleged defect. Petitioners submit evidence, NHTSA reviews it within 120 days, and either grants the petition (opening a PE) or denies it with a written explanation in the Federal Register.
Investigators summarized the matter as follows: "CU ATTORNEY (NANCY PERKINS, ARNOLD & PORTER) AND ODI AGREED THAT AN EXTENSION IN THE PETITION REVIEW PROCESS WILL BE NECESSARY TO ALLOW ODI TIME TO CONDUCT A PROPER REVIEW OF THE NEW MATERIAL SUBMITTED BY CU ON DECEMBER..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time. Related ISUZU files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.
Investigation Summary
CU ATTORNEY (NANCY PERKINS, ARNOLD & PORTER) AND ODI AGREED THAT AN EXTENSION IN THE PETITION REVIEW PROCESS WILL BE NECESSARY TO ALLOW ODI TIME TO CONDUCT A PROPER REVIEW OF THE NEW MATERIAL SUBMITTED BY CU ON DECEMBER 23, 1996. THEREFORE, THE NEW DUE DATE WILL BE APRIL 21, 1997. CONSUMERS UNION (CU) PETITIONED THE AGENCY TO OPEN AN INVESTIGATION TO DETERMINE WHETHER THE 1995 AND 1996 MODEL ISUZU TROOPER AND ACURA SLX VEHICLES ARE DEFECTIVE WITHIN THE MEANING OF 49 U.S. C. CHAPTER 301. SPECIFICALLY, CU ALLEGED THAT TESTING DEMONSTRATED A DANGEROUS PROPENSITY OF THE SUBJECT VEHICLES TO ROLL OVER WHILE PERFORMING A DYNAMIC STEERING MANEUVER TO AVOID EMERGANCY SITUATIONS.
About This Investigation Type
A Defect Petition (DP) is initiated when an individual or organization formally petitions NHTSA to investigate a potential safety defect. NHTSA reviews the petition and decides whether to open an investigation.
Other ISUZU Investigations
Unintended Movement
Wheel bearing failure
Loss of brake warning lights
REAR SUSPENSION LOWER LINK FAILURE
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. Learn more.
Read our methodology — how this data is sourced, computed, and verified.