← New search

2004 Hyundai Sonata

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2004 Hyundai Sonata do not stand out strongly from the model-year median of 161.

About this comparison →

When problems were reported

Mileage at the reported incident

155 reports with mileage · 47 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Suspension. Review the 56 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 47 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 46 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

22 crash reports2 fire reports23 injury reports

Engine And Engine Cooling complaints

5 reports
Clear category filter
140,000 miles · Jan 26, 2015
Engine And Engine CoolingSteeringStructure

TOOK CAR TO MECHANIC FOR FUEL PUMP WORK. HE INFORMED US THAT THE ENGINE CRADLE IS RUSTED BEYOND REPAIR AND IS UN-SAFE TO DRIVE. I FOUND THE RECALL ONLINE AND CALLED HYUNDAI. THEY INFORMED ME THAT REMEDIATION HAD BEEN DONE IN 2009. (A NEW HOLE FOR DRAINAGE HAD BEEN DRILLED IN THE ENGINE CRADLE FRAME AND A SEALANT APPLIED). EVIDEN…

Read full complaint

TOOK CAR TO MECHANIC FOR FUEL PUMP WORK. HE INFORMED US THAT THE ENGINE CRADLE IS RUSTED BEYOND REPAIR AND IS UN-SAFE TO DRIVE. I FOUND THE RECALL ONLINE AND CALLED HYUNDAI. THEY INFORMED ME THAT REMEDIATION HAD BEEN DONE IN 2009. (A NEW HOLE FOR DRAINAGE HAD BEEN DRILLED IN THE ENGINE CRADLE FRAME AND A SEALANT APPLIED). EVIDENTLY THIS DID NOT STOP THE CORROSION OF THE FRAME AND CAUSED A WEAKENING OF THE FRAME AND A CRACK IN THE STRUCTURAL AREA OF THE FRAME. IS HYUNDAI LIABLE TO REPAIR THIS DEFECT? I CAN SUPPLY PICTURES OF THE DEFECT AND CRACK IN FRAME IF NECESSARY. *TR

NHTSA ODI #10679022

85,000 miles · Aug 10, 2010
Engine And Engine Cooling

2004 HYUNDAI SONATA GLS DIES RANDOMLY WHEN STOPPED AT A RED LIGHT OR TURNING AT A LOW RATE OF SPEED, THEN STARTS RIGHT UP AND MAY NOT DO IT AGAIN FOR A MONTH OR A FEW DAYS. CHECK ENGINE LIGHT DOES NOT COME ON AND VEHICLE RUNS GREAT BESIDES DYING IN TRAFFIC WHICH COULD CAUSE A CRASH. *TR

NHTSA ODI #10348606

44,100 miles · Dec 18, 2008
Engine And Engine Cooling

WHILE DRIVING MY 2004 HYUNDAI SONATA AT LOW SPEED, THE ENGINE SUDDENLY DIED. THIS CAUSED ME TO LOSE POWER STEERING AND POWER BRAKES. FORTUNATELY THERE WAS SPACE FOR ME TO PULL TO THE CURB AND NO ONE WAS BEHIND ME. AFTER AN HOUR OR SO OF TRYING THE CAR STARTED UP AND I DROVE IT HOME. THREE DAYS LATER IT HAPPENED AGAIN ON A BUSY S…

Read full complaint

WHILE DRIVING MY 2004 HYUNDAI SONATA AT LOW SPEED, THE ENGINE SUDDENLY DIED. THIS CAUSED ME TO LOSE POWER STEERING AND POWER BRAKES. FORTUNATELY THERE WAS SPACE FOR ME TO PULL TO THE CURB AND NO ONE WAS BEHIND ME. AFTER AN HOUR OR SO OF TRYING THE CAR STARTED UP AND I DROVE IT HOME. THREE DAYS LATER IT HAPPENED AGAIN ON A BUSY STREET AT ABOUT 10 MPH. AGAIN I WAS FORTUNATE AND COULD PULL TO THE CURB. THIS TIME I COULD NOT START IT AND HAD IT TOWED TO A LOCAL REPAIR SHOP. THEY DIAGNOSED IT AS A "DEFECTIVE EVAP. SOLENOID THAT WAS CAUSING ENGINE FLOODING." THIS WAS A VERY SCARY OCCURRENCE--IF IT HAPPENED ON A HIGHWAY IT WOULD BE VERY DIFFICULT TO STEER (DUE TO LOSS OF POWER STEERING) AND MY SUDDEN SLOWING COULD CAUSE REAR-END CRASH. THE OLD PART IS NOT AVAILABLE. *TR

NHTSA ODI #10252206

120,000 miles · Oct 25, 2008
Engine And Engine Cooling

2004 HYNDAI SONATA STALLS ON HIGHWAY. *TR

NHTSA ODI #10246690

26,500 miles · Nov 28, 2005
Engine And Engine Cooling

DT: THE CONTACT EXPERIENCED PROBLEMS WITH STARTING THE VEHICLE ON TWO OCCASIONS. WHEN IT OCCURRED THE FIRST TIME HE ATTEMPTED THREE TIMES BEFORE THE ENGINE TURNED OVER. THE SECOND TIME THE KEY REMAINED IN THE IGNITION FOR FOUR MINUTES BEFORE THE VEHICLE WOULD START. ALSO, THE DEALER STATED THE PROBLEM WAS INTERMITTENT, AND …

Read full complaint

DT: THE CONTACT EXPERIENCED PROBLEMS WITH STARTING THE VEHICLE ON TWO OCCASIONS. WHEN IT OCCURRED THE FIRST TIME HE ATTEMPTED THREE TIMES BEFORE THE ENGINE TURNED OVER. THE SECOND TIME THE KEY REMAINED IN THE IGNITION FOR FOUR MINUTES BEFORE THE VEHICLE WOULD START. ALSO, THE DEALER STATED THE PROBLEM WAS INTERMITTENT, AND ONLY OCCURRED ONCE. BECAUSE THE DEALER WAS UNABLE TO DUPLICATE THE PROBLEM NO REPAIRS WERE DONE. *AK

NHTSA ODI #10143766

Official recalls

1

09V124000 · Suspension

Apr 16, 2009

HYUNDAI IS RECALLING 188,282 MY 2001-2004 SONATA AND MY 2001-2004 XG300 AND XG350 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA. ROAD SALT APPLIED IN THESE JURISDICTIONS DURING THE WINTER MONTHS MAY RESULT IN PROGRESSIVE, INTERNAL CORROSION OF THE FRONT SUB-FRAME ON THE VEHICLES, AND MAY RESULT IN THINNING OR PERFORATION OF THE SUB-FRAME STEEL. THE CORROSION IS FREQUENTLY VISIBLE AND OFTEN DISCOVERED DURING INSPECTION OR ROUTINE MAINTENANCE, AND OWNERS MAY ALSO HEAR NOISES OR NOTICE TIRE MISALIGNMENT AND STEERING PULL. IF THESE SIGNALS ARE UNDETECTED OR UNHEEDED, THE CORROSION MAY PROGRESS AND THE FORWARD MOUNTING OF THE LOWER CONTROL ARM MAY DETACH FROM THE SUB-FRAME.

Consequence & remedy

Consequence: IF THAT HAPPENS, THE VEHICLE MAY LOSE DRIVE POWER TO THE WHEELS, AND THE FRONT WHEEL MAY MAKE CONTACT WITH THE FENDER OR WHEEL WELL, THEREBY INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL MEASURE THE THICKNESS OF THE FRONT SUB-FRAME AND INSPECT THE FRONT SUB-FRAME FOR CORROSION DAMAGE AND, IF NECESSARY, THE FRONT SUB-FRAME WILL BE REPLACED WITH A NEW SUB-FRAME THAT INCORPORATES ADDITIONAL HOLES IN THE UPPER AND LOWER PANELS. IF THE FRONT SUB-FRAME DOES NOT REQUIRE REPLACEMENT, THE DEALER WILL ADD DRAINAGE HOLES TO THE SUB-FRAME AND WILL TREAT THE SUB-FRAME WITH RUST-PROOFING MATERIAL TO STOP THE CORROSION PROCESS. THIS PROCEDURE WILL BE PERFORMED FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING APRIL 2009. OWNERS MAY CONTACT THE HYUNDAI CUSTOMER ASSISTANCE CENTER AT 1-800-633-5151.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

EA08016 · Front SUB-FRAME Corrosion

Opened Aug 21, 2008 · Closed Apr 20, 2009

Status: closed (inferred from source dates) · Structure; Structure:frame And Members; Suspension; Suspension:front; Suspension:front:control Arm

IN A LETTER DATED APRIL 14, 2009, HYUNDAI-KIA AMERICA TECHNICAL CENTER, INC (HYUNDAI) NOTIFIED NHTSA THAT HYUNDAIIS CONDUCTING A SAFETY RECALL OF MODEL YEAR (MY) 1999 THROUGH 2004 HYUNDAI SONATA VEHICLES MANUFACTURED PRIOR TO NOVEMBER 20, 2003 THAT ARE REGISTERED AND OPERATED IN THE FOLLOWING SALT BELT STATES AND THE DISTRICT OF COLUMBIA: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, AND WISCONSIN.HYUNDAI IS RECALLING THE VEHICLES TO REMEDY A CONDITION WHERE INTERNAL CORROSION OF THE FRONT SUBFRAME MAY LEAD TO SEPARATION OF THE LOWER CONTROL ARM AT THE FORWARD MOUNTING POINT AND/OR SEPARATION OF THE AXLE FROM THE TRANSAXLE.THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND/OR VEHICLE DISABLEMENT. THE SUBFRAMES WILL BE INSPECTED IN THE RECALLED VEHICLES USING A PROCEDURE DEVELOPED BY HYUNDAI TO MEASURE METAL THICKNESS.PARTS WITH PERFORATIONS FROM CORROSION OR WITH METAL BELOW THE SPECIFIED THICKNESS WILL BE REPLACED WITH REDESIGNED SUBFRAMES.IF THE MINIMUM METAL THICKNESS IS MET, DRAINAGE HOLES AND RUST PROOFING MATERIAL WILL BE ADDED TO THE EXISTING SUBFRAME. ODI'S ANALYSIS OF COMPLAINT DATA REVEALED THAT 98% OF THE CONSUMER COMPLAINTS WERE FROM VEHICLES EITHER ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES. SIMILARLY 99.7% OF THE WARRANTY CLAIMS WERE FROM VEHICLES ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES.ODI IDENTIFIED 105 REPORTS OF LOWER CONTROL ARM DETACHMENT AND/OR AXLE SEPARATION FROM THE TRANSAXLE THROUGH ANALYSIS OF WARRANTY AND COMPLAINT INFORMATION AND CONSUMER INTERVIEWS.ONE HUNDRED THREE (103) OF THE 105 INCIDENTS INVOLVED VEHICLES IN STATES COVERED BY THE RECALL.IN ADDITION TO THE SUBJECT VEHICLES, HYUNDAI ALSO NOTED IN THE APRIL 14, 2009 LETTER THAT MY 2001 THROUGH 2004 XG300 AND XG350 WERE ALSO BEING RECALLED AS THEY WERE MANUFACTURED WITH SUBFRAMES SIMILAR IN DESIGN THE SUBJECT VEHICLES.BASED ON HYUNDAI'S DECISION TO CONDUCT A SAFETY RECALL THIS ENGINEERING ANALYSIS IS CLOSED.

Additional source detail variants (5)

Structure:frame And Members

IN A LETTER DATED APRIL 14, 2009, HYUNDAI-KIA AMERICA TECHNICAL CENTER, INC (HYUNDAI) NOTIFIED NHTSA THAT HYUNDAIIS CONDUCTING A SAFETY RECALL OF MODEL YEAR (MY) 1999 THROUGH 2004 HYUNDAI SONATA VEHICLES MANUFACTURED PRIOR TO NOVEMBER 20, 2003 THAT ARE REGISTERED AND OPERATED IN THE FOLLOWING SALT BELT STATES AND THE DISTRICT OF COLUMBIA: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, AND WISCONSIN.HYUNDAI IS RECALLING THE VEHICLES TO REMEDY A CONDITION WHERE INTERNAL CORROSION OF THE FRONT SUBFRAME MAY LEAD TO SEPARATION OF THE LOWER CONTROL ARM AT THE FORWARD MOUNTING POINT AND/OR SEPARATION OF THE AXLE FROM THE TRANSAXLE.THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND/OR VEHICLE DISABLEMENT. THE SUBFRAMES WILL BE INSPECTED IN THE RECALLED VEHICLES USING A PROCEDURE DEVELOPED BY HYUNDAI TO MEASURE METAL THICKNESS.PARTS WITH PERFORATIONS FROM CORROSION OR WITH METAL BELOW THE SPECIFIED THICKNESS WILL BE REPLACED WITH REDESIGNED SUBFRAMES.IF THE MINIMUM METAL THICKNESS IS MET, DRAINAGE HOLES AND RUST PROOFING MATERIAL WILL BE ADDED TO THE EXISTING SUBFRAME. ODI'S ANALYSIS OF COMPLAINT DATA REVEALED THAT 98% OF THE CONSUMER COMPLAINTS WERE FROM VEHICLES EITHER ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES. SIMILARLY 99.7% OF THE WARRANTY CLAIMS WERE FROM VEHICLES ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES.ODI IDENTIFIED 105 REPORTS OF LOWER CONTROL ARM DETACHMENT AND/OR AXLE SEPARATION FROM THE TRANSAXLE THROUGH ANALYSIS OF WARRANTY AND COMPLAINT INFORMATION AND CONSUMER INTERVIEWS.ONE HUNDRED THREE (103) OF THE 105 INCIDENTS INVOLVED VEHICLES IN STATES COVERED BY THE RECALL.IN ADDITION TO THE SUBJECT VEHICLES, HYUNDAI ALSO NOTED IN THE APRIL 14, 2009 LETTER THAT MY 2001 THROUGH 2004 XG300 AND XG350 WERE ALSO BEING RECALLED AS THEY WERE MANUFACTURED WITH SUBFRAMES SIMILAR IN DESIGN THE SUBJECT VEHICLES.BASED ON HYUNDAI'S DECISION TO CONDUCT A SAFETY RECALL THIS ENGINEERING ANALYSIS IS CLOSED.

Structure

IN A LETTER DATED APRIL 14, 2009, HYUNDAI-KIA AMERICA TECHNICAL CENTER, INC (HYUNDAI) NOTIFIED NHTSA THAT HYUNDAIIS CONDUCTING A SAFETY RECALL OF MODEL YEAR (MY) 1999 THROUGH 2004 HYUNDAI SONATA VEHICLES MANUFACTURED PRIOR TO NOVEMBER 20, 2003 THAT ARE REGISTERED AND OPERATED IN THE FOLLOWING SALT BELT STATES AND THE DISTRICT OF COLUMBIA: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, AND WISCONSIN.HYUNDAI IS RECALLING THE VEHICLES TO REMEDY A CONDITION WHERE INTERNAL CORROSION OF THE FRONT SUBFRAME MAY LEAD TO SEPARATION OF THE LOWER CONTROL ARM AT THE FORWARD MOUNTING POINT AND/OR SEPARATION OF THE AXLE FROM THE TRANSAXLE.THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND/OR VEHICLE DISABLEMENT. THE SUBFRAMES WILL BE INSPECTED IN THE RECALLED VEHICLES USING A PROCEDURE DEVELOPED BY HYUNDAI TO MEASURE METAL THICKNESS.PARTS WITH PERFORATIONS FROM CORROSION OR WITH METAL BELOW THE SPECIFIED THICKNESS WILL BE REPLACED WITH REDESIGNED SUBFRAMES.IF THE MINIMUM METAL THICKNESS IS MET, DRAINAGE HOLES AND RUST PROOFING MATERIAL WILL BE ADDED TO THE EXISTING SUBFRAME. ODI'S ANALYSIS OF COMPLAINT DATA REVEALED THAT 98% OF THE CONSUMER COMPLAINTS WERE FROM VEHICLES EITHER ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES. SIMILARLY 99.7% OF THE WARRANTY CLAIMS WERE FROM VEHICLES ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES.ODI IDENTIFIED 105 REPORTS OF LOWER CONTROL ARM DETACHMENT AND/OR AXLE SEPARATION FROM THE TRANSAXLE THROUGH ANALYSIS OF WARRANTY AND COMPLAINT INFORMATION AND CONSUMER INTERVIEWS.ONE HUNDRED THREE (103) OF THE 105 INCIDENTS INVOLVED VEHICLES IN STATES COVERED BY THE RECALL.IN ADDITION TO THE SUBJECT VEHICLES, HYUNDAI ALSO NOTED IN THE APRIL 14, 2009 LETTER THAT MY 2001 THROUGH 2004 XG300 AND XG350 WERE ALSO BEING RECALLED AS THEY WERE MANUFACTURED WITH SUBFRAMES SIMILAR IN DESIGN THE SUBJECT VEHICLES.BASED ON HYUNDAI'S DECISION TO CONDUCT A SAFETY RECALL THIS ENGINEERING ANALYSIS IS CLOSED.

Suspension:front:control Arm

IN A LETTER DATED APRIL 14, 2009, HYUNDAI-KIA AMERICA TECHNICAL CENTER, INC (HYUNDAI) NOTIFIED NHTSA THAT HYUNDAIIS CONDUCTING A SAFETY RECALL OF MODEL YEAR (MY) 1999 THROUGH 2004 HYUNDAI SONATA VEHICLES MANUFACTURED PRIOR TO NOVEMBER 20, 2003 THAT ARE REGISTERED AND OPERATED IN THE FOLLOWING SALT BELT STATES AND THE DISTRICT OF COLUMBIA: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, AND WISCONSIN.HYUNDAI IS RECALLING THE VEHICLES TO REMEDY A CONDITION WHERE INTERNAL CORROSION OF THE FRONT SUBFRAME MAY LEAD TO SEPARATION OF THE LOWER CONTROL ARM AT THE FORWARD MOUNTING POINT AND/OR SEPARATION OF THE AXLE FROM THE TRANSAXLE.THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND/OR VEHICLE DISABLEMENT. THE SUBFRAMES WILL BE INSPECTED IN THE RECALLED VEHICLES USING A PROCEDURE DEVELOPED BY HYUNDAI TO MEASURE METAL THICKNESS.PARTS WITH PERFORATIONS FROM CORROSION OR WITH METAL BELOW THE SPECIFIED THICKNESS WILL BE REPLACED WITH REDESIGNED SUBFRAMES.IF THE MINIMUM METAL THICKNESS IS MET, DRAINAGE HOLES AND RUST PROOFING MATERIAL WILL BE ADDED TO THE EXISTING SUBFRAME. ODI'S ANALYSIS OF COMPLAINT DATA REVEALED THAT 98% OF THE CONSUMER COMPLAINTS WERE FROM VEHICLES EITHER ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES. SIMILARLY 99.7% OF THE WARRANTY CLAIMS WERE FROM VEHICLES ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES.ODI IDENTIFIED 105 REPORTS OF LOWER CONTROL ARM DETACHMENT AND/OR AXLE SEPARATION FROM THE TRANSAXLE THROUGH ANALYSIS OF WARRANTY AND COMPLAINT INFORMATION AND CONSUMER INTERVIEWS.ONE HUNDRED THREE (103) OF THE 105 INCIDENTS INVOLVED VEHICLES IN STATES COVERED BY THE RECALL.IN ADDITION TO THE SUBJECT VEHICLES, HYUNDAI ALSO NOTED IN THE APRIL 14, 2009 LETTER THAT MY 2001 THROUGH 2004 XG300 AND XG350 WERE ALSO BEING RECALLED AS THEY WERE MANUFACTURED WITH SUBFRAMES SIMILAR IN DESIGN THE SUBJECT VEHICLES.BASED ON HYUNDAI'S DECISION TO CONDUCT A SAFETY RECALL THIS ENGINEERING ANALYSIS IS CLOSED.

Suspension:front

IN A LETTER DATED APRIL 14, 2009, HYUNDAI-KIA AMERICA TECHNICAL CENTER, INC (HYUNDAI) NOTIFIED NHTSA THAT HYUNDAIIS CONDUCTING A SAFETY RECALL OF MODEL YEAR (MY) 1999 THROUGH 2004 HYUNDAI SONATA VEHICLES MANUFACTURED PRIOR TO NOVEMBER 20, 2003 THAT ARE REGISTERED AND OPERATED IN THE FOLLOWING SALT BELT STATES AND THE DISTRICT OF COLUMBIA: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, AND WISCONSIN.HYUNDAI IS RECALLING THE VEHICLES TO REMEDY A CONDITION WHERE INTERNAL CORROSION OF THE FRONT SUBFRAME MAY LEAD TO SEPARATION OF THE LOWER CONTROL ARM AT THE FORWARD MOUNTING POINT AND/OR SEPARATION OF THE AXLE FROM THE TRANSAXLE.THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND/OR VEHICLE DISABLEMENT. THE SUBFRAMES WILL BE INSPECTED IN THE RECALLED VEHICLES USING A PROCEDURE DEVELOPED BY HYUNDAI TO MEASURE METAL THICKNESS.PARTS WITH PERFORATIONS FROM CORROSION OR WITH METAL BELOW THE SPECIFIED THICKNESS WILL BE REPLACED WITH REDESIGNED SUBFRAMES.IF THE MINIMUM METAL THICKNESS IS MET, DRAINAGE HOLES AND RUST PROOFING MATERIAL WILL BE ADDED TO THE EXISTING SUBFRAME. ODI'S ANALYSIS OF COMPLAINT DATA REVEALED THAT 98% OF THE CONSUMER COMPLAINTS WERE FROM VEHICLES EITHER ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES. SIMILARLY 99.7% OF THE WARRANTY CLAIMS WERE FROM VEHICLES ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES.ODI IDENTIFIED 105 REPORTS OF LOWER CONTROL ARM DETACHMENT AND/OR AXLE SEPARATION FROM THE TRANSAXLE THROUGH ANALYSIS OF WARRANTY AND COMPLAINT INFORMATION AND CONSUMER INTERVIEWS.ONE HUNDRED THREE (103) OF THE 105 INCIDENTS INVOLVED VEHICLES IN STATES COVERED BY THE RECALL.IN ADDITION TO THE SUBJECT VEHICLES, HYUNDAI ALSO NOTED IN THE APRIL 14, 2009 LETTER THAT MY 2001 THROUGH 2004 XG300 AND XG350 WERE ALSO BEING RECALLED AS THEY WERE MANUFACTURED WITH SUBFRAMES SIMILAR IN DESIGN THE SUBJECT VEHICLES.BASED ON HYUNDAI'S DECISION TO CONDUCT A SAFETY RECALL THIS ENGINEERING ANALYSIS IS CLOSED.

Suspension

IN A LETTER DATED APRIL 14, 2009, HYUNDAI-KIA AMERICA TECHNICAL CENTER, INC (HYUNDAI) NOTIFIED NHTSA THAT HYUNDAIIS CONDUCTING A SAFETY RECALL OF MODEL YEAR (MY) 1999 THROUGH 2004 HYUNDAI SONATA VEHICLES MANUFACTURED PRIOR TO NOVEMBER 20, 2003 THAT ARE REGISTERED AND OPERATED IN THE FOLLOWING SALT BELT STATES AND THE DISTRICT OF COLUMBIA: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, AND WISCONSIN.HYUNDAI IS RECALLING THE VEHICLES TO REMEDY A CONDITION WHERE INTERNAL CORROSION OF THE FRONT SUBFRAME MAY LEAD TO SEPARATION OF THE LOWER CONTROL ARM AT THE FORWARD MOUNTING POINT AND/OR SEPARATION OF THE AXLE FROM THE TRANSAXLE.THIS COULD RESULT IN A LOSS OF VEHICLE CONTROL AND/OR VEHICLE DISABLEMENT. THE SUBFRAMES WILL BE INSPECTED IN THE RECALLED VEHICLES USING A PROCEDURE DEVELOPED BY HYUNDAI TO MEASURE METAL THICKNESS.PARTS WITH PERFORATIONS FROM CORROSION OR WITH METAL BELOW THE SPECIFIED THICKNESS WILL BE REPLACED WITH REDESIGNED SUBFRAMES.IF THE MINIMUM METAL THICKNESS IS MET, DRAINAGE HOLES AND RUST PROOFING MATERIAL WILL BE ADDED TO THE EXISTING SUBFRAME. ODI'S ANALYSIS OF COMPLAINT DATA REVEALED THAT 98% OF THE CONSUMER COMPLAINTS WERE FROM VEHICLES EITHER ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES. SIMILARLY 99.7% OF THE WARRANTY CLAIMS WERE FROM VEHICLES ORIGINALLY SOLD OR OPERATED IN SALTBELT STATES.ODI IDENTIFIED 105 REPORTS OF LOWER CONTROL ARM DETACHMENT AND/OR AXLE SEPARATION FROM THE TRANSAXLE THROUGH ANALYSIS OF WARRANTY AND COMPLAINT INFORMATION AND CONSUMER INTERVIEWS.ONE HUNDRED THREE (103) OF THE 105 INCIDENTS INVOLVED VEHICLES IN STATES COVERED BY THE RECALL.IN ADDITION TO THE SUBJECT VEHICLES, HYUNDAI ALSO NOTED IN THE APRIL 14, 2009 LETTER THAT MY 2001 THROUGH 2004 XG300 AND XG350 WERE ALSO BEING RECALLED AS THEY WERE MANUFACTURED WITH SUBFRAMES SIMILAR IN DESIGN THE SUBJECT VEHICLES.BASED ON HYUNDAI'S DECISION TO CONDUCT A SAFETY RECALL THIS ENGINEERING ANALYSIS IS CLOSED.