NHTSA Office of Defects Investigation

Engineering Analysis EA03-011: AUTO TRANS IGNITION-PARK INTERLOCK

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA03-011 on July 17, 2003 and closed it on January 30, 2004. NHTSA's investigations file lists 9 models from 4 makes for it and links recall 04V-021 to it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA03-011 (also written EA03011)
Investigation type
Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
Status
Closed January 30, 2004
Opened
Closed
Vehicle or equipment manufacturer
Chrysler (FCA US, LLC)
Components
Power Train — Automatic Transmission; Power Train — Automatic Transmission — Lever and Linkage — Floor Shift
Recall linked by NHTSA
  • 04V-021: DAIMLERCHRYSLER/FLOOR SHIFT IGNITION-PARK INTERLOC, reported
Vehicles and equipment
9 models from 4 makes, including the Chrysler Concorde and Chrysler LHS

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA03-011.

THE MANUFACTURER REPORTS ABOVE ARE BASED ON DAIMLERCHRYSLER?S (DC) ANALYSIS OF MODEL YEAR (MY) 1998 (POPULATION = 356,384) AND 1999 (POPULATION = 486,948) JA, JX AND LH FAMILY SUBJECT VEHICLE DATA (EARLIER MYS EXCLUDED).

THE POPULATION NUMBER INCLUDES ALL MYS.THE PRECISE NUMBER OF DUPLICATES BETWEEN ODI AND DC REPORTS CANNOT BE DETERMINED DUE TO MISSING OR INCOMPLETE INFORMATION.THE FATALITY INCIDENT INVOLVED AN ELDERLY PERSON WHO ATTEMPTED TO STOP A ROLL AWAY VEHICLE AND RECEIVED FATAL INJURIES.ODI ALSO GATHERED INFORMATION ON MY 1997-99 PROWLER VEHICLES IN THIS INVESTIGATION. THE PROWLER VEHICLES WERE MANUFACTURED WITH A DIFFERENT DESIGN SHIFTER MECHANISM (THE SHIFT LEVER IS SHORTER).

THERE ARE NO COMPLAINTS OF PROWLER INTERLOCK FAILURE IN ODI?S DATABASE, AND DC HAS RECEIVED NO REPORTS EITHER.THE PROWLER IS EXCLUDED FROM THE RECALL SCOPE.THE INVESTIGATION INVOLVED A CONDITION WHERE THE INTERLOCK SYSTEM COULD FAIL (OR BE MADE INOPERATIVE BY THE OPERATOR) DURING VEHICLE USE, POSSIBLY INADVERTENTLY.THE INTERLOCK SYSTEM IS REQUIRED UNDER FMVSS 114.

WITH THE TRANSMISSION IN THE PARK POSITION AND THE IGNITION KEY OFF, THE COMBINED ACTION OF PRESSING THE SHIFT BUTTON AND PULLING THE SHIFT LEVER REARWARD MAY RESULT IN THE OPERATOR OVERCOMING THE INTERLOCK SYSTEM AND CAUSE THE MECHANICAL LINKAGE OF THE SYSTEM TO DISCONNECT.WHEN THIS OCCURS, THERE IS NO OVERT INDICATION TO AN OPERATOR THAT THE SYSTEM IS DEFEATED, AND AN INCREASED RISK OF VEHICLE ROLL-AWAY EXISTS.UNDER RECALL 04V021, DC WILL REPLACE DAMAGED SHIFT MECHANISMS, AND WILL INSTALL ON ALL VEHICLES A DEVICE WHICH INHIBITS THE OPERATOR?S ABILITY TO OVERCOME THE INTERLOCK AND DEFEAT THE SYSTEM.BEGINNING WITH MY 2000, DC INCORPORATED A BRAKE AND TRANSMISSION SHIFTER INTERLOCK (BTSI) SYSTEM INTO THE SUBJECT VEHICLES.INTRODUCTION OF BTSI INVOLVED DESIGN CHANGES TO THE SHIFT MECHANISM, ONE OF WHICH RESULTED IN REDUCED MECHANICAL ADVANTAGE (RMA) OF THE SHIFT BUTTON.THE RMA SHIFTER REQUIRES INCREASED FORCES TO OVERCOME THE INTERLOCK SYSTEM, MAKING THE SHIFTER LESS SUSCEPTIBLE TO DAMAGE.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA03-011. 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.

Chrysler

All Chrysler recalls

Dodge

All Dodge recalls

Eagle

All Eagle recalls

Plymouth

All Plymouth 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 EA03-011

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.