← New search

2000 Chevrolet Silverado 3500

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2000 Chevrolet Silverado 3500 do not stand out strongly from the model-year median of 35.

About this comparison →

How this year compares

Owner complaints by model year

Other model years Selected year
Compare all Silverado 3500 years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

38 reports with mileage · 42 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.

  • Service Brakes, Hydraulic. Review the 33 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Tires. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Steering. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

6 crash reports1 fire reports2 injury reports

What owners actually said

80 reports
Mileage unknown · May 7, 2001
Tires

VEHICLE STARTED VIBRATING WHILE DRIVING ON INTERSTATE 10 ON MAY 3, 2001. AT FIRST WE COULD NOT SEE ANY VISIBLE PROBLEM SO WE SLOWED OUR SPEED TO WELL UNDER 50 MPH. WE TOOK VEHICLE TO FIRESTONE STORE AND THE TREAD SEPARATION IS NOW VERY OBVIOUS. THE FIRESTONE STORE SAID THEY WILL REPLACE TIRE WITH ANOTHER FIRESTONE TIRE BUT TH…

Read full complaint

VEHICLE STARTED VIBRATING WHILE DRIVING ON INTERSTATE 10 ON MAY 3, 2001. AT FIRST WE COULD NOT SEE ANY VISIBLE PROBLEM SO WE SLOWED OUR SPEED TO WELL UNDER 50 MPH. WE TOOK VEHICLE TO FIRESTONE STORE AND THE TREAD SEPARATION IS NOW VERY OBVIOUS. THE FIRESTONE STORE SAID THEY WILL REPLACE TIRE WITH ANOTHER FIRESTONE TIRE BUT THEY CLAIM THE STEELTEX TIRE IS SAFE AND DOES NOT HAVE TREAD SEPARATION PROBLEMS. THIS VEHICLE IS A GM CUTWAY, MADE INTO A CLASS B MOTOR HOME BY ROADTREK (HOME AND PARK OF CANADA). IT IS ONE YEAR OLD AND HAS ORIGINAL FIRESTONE TIRES. WE HAVE NOT DRIVEN IT OFFROAD, OVER MEDIANS, CURBS OR SHOULDERS (THIS IS WHAT FIRESTONE HAS PREVIOUSLY CLAIMED WAS PROBLEM WITH EMERGENCY VEHICLES USING STEELTEX TIRES). WE DID NOT HAVE AN ACCIDENT BUT THE TV IN THE MOTOR HOME QUIT WORKING AS A RESULT OF THE VIBRATING.*AK (DOT NUMBER: DN11BIA299 TIRESIZE: LT24575R16)

NHTSA ODI #745037

Mileage unknown · Apr 30, 2001
Tires

TIRE BLEW FOR NO APPARANT REASON AT APPROX 70MPH ON INTERSTATE WHILE TOWING AN EMPTY UTILITY TRAILER. TIRE LOOKS SEPARATED AND BLEW INTO 2 PIECES. LOST SOME CONTROL OF VEHICLE ALMOST CAUSING CATASTROPHIC CRASH. DAMAGED VEHICLE AND TRAILER. *AK (DOT NUMBER: 379 TIRESIZE: 245/75R16)

NHTSA ODI #744753

Mileage unknown · Apr 2, 2001
Service Brakes, HydraulicVehicle Speed Control

HAD APPLIED GAS TO SPEED UP AND IT WOULD GO BACK. ENGINE KEPT REVVING, BUT REMAINED AT SAME SPEED. ABS WOULD KICK IN ON ANY SLIPPERY SURFACE. RIGHT FRONT TIRE GRABBED, HARD, AND THEN LOCKED UP WHEN BRAKES WERE APPLIED. AT DEALERSHIP ALL BRAKE PARTS WERE REPAIRED OR REPLACED. *AK

NHTSA ODI #884876

Mileage unknown · Mar 29, 2001
Tires

ORIGINAL TIRES ON A CHEVROLET, K3500, 2000, DOT AD11DOA449, AMERI 500 TR LT245/7516M+S LOAD RANGE E. SIDEWALLS DEVELOPED LARGE BUBBLES ABOUT 5 INCHES IN DIAMETER ON TWO REAR TIRES.*AK CONSUMER STATES THAT FOUR OF THE ORIGINAL GENERAL TIRES ON VEHICLE HAVE FAILED. *SLC

NHTSA ODI #884539

Mileage unknown · Feb 23, 2001
Service Brakes, HydraulicStructure

THE VEHICLE WAS WEIGHED WITH A MEDIUM SIZED VEHICLE IN TOW AND THE WEIGHT WAS 12140, AS PER GM THE TRUCKS MAX GVW RATING IS 11,000, THE VEHICLE WAS BEING USED OVERWEIGHT OF SPECS WHICH CAUSED PREMATURE BRAKE WEAR, THE VEHICLE WAS SOLD TO THE CONSUMER WITH THE UNDERSTANDING THAT THE VEHICLE WOULD BE USED AS A TOW TRUCK, THE CONSU…

Read full complaint

THE VEHICLE WAS WEIGHED WITH A MEDIUM SIZED VEHICLE IN TOW AND THE WEIGHT WAS 12140, AS PER GM THE TRUCKS MAX GVW RATING IS 11,000, THE VEHICLE WAS BEING USED OVERWEIGHT OF SPECS WHICH CAUSED PREMATURE BRAKE WEAR, THE VEHICLE WAS SOLD TO THE CONSUMER WITH THE UNDERSTANDING THAT THE VEHICLE WOULD BE USED AS A TOW TRUCK, THE CONSUMER BELIEVES THAT GM IS SELLING TRUCKS WITH WRECKER PROVISIONS BUT ARE TOO LIGHT TO BE TOW TRUCKS OR THEY ARE SELLING TRUCKS WITH DEFECTIVE BRAKE SYSTEMS, ON ONE OCCASION THE VEHICLE BRAKE PEDAL WENT TO THE FLOOR WHILE THE DRIVER WAS BRAKING AND FAILED CAUSING THE TRUCK TO REAR END ANOTHER VEHICLE. NLM

NHTSA ODI #559915

Mileage unknown · Feb 22, 2001
Electrical System

AN ELECTRICAL SHORT WITHIN HEAD LIGHT AND TAIL LIGHT ASSEMBLY BURNED OUT INSTALLATION, CAUSING INSUFFICIENT LIGHTING. CONSUMER HAS CONTACTED DEALER. *AK WIRING FOR THE TAIL LIGHTS AND DASH LIGHTS IS TOO SMALL, WHEN TOWING A TRAILER, WIRING IS INADEQUATE TO HANDLE EXTRA LIGHTS, WIRES AT HARNESS LIGHT SWITCH ARE CHARGED FROM…

Read full complaint

AN ELECTRICAL SHORT WITHIN HEAD LIGHT AND TAIL LIGHT ASSEMBLY BURNED OUT INSTALLATION, CAUSING INSUFFICIENT LIGHTING. CONSUMER HAS CONTACTED DEALER. *AK WIRING FOR THE TAIL LIGHTS AND DASH LIGHTS IS TOO SMALL, WHEN TOWING A TRAILER, WIRING IS INADEQUATE TO HANDLE EXTRA LIGHTS, WIRES AT HARNESS LIGHT SWITCH ARE CHARGED FROM GETTING HOT, CONSUMER FEELS WIRING NEEDS TO BE HEAVIER OR USE RELAYS TO SUPPORT THE TRAILER LIGHTS. *SLC

NHTSA ODI #881079

Mileage unknown · Jan 10, 2001
Service Brakes, HydraulicCrashInjury

WHEN APPLYING BRAKES AT 30MPH PEDAL WENT TO FLOOR ,RESULTING IN EXTENDED STOPPING DISTANCE, AND CAUSING A COLLISION AND INJURY. DEALER AND MANUFACTURER HAS BEEN NOTIFIED.*AK

NHTSA ODI #877849

Mileage unknown · Dec 29, 2000
Service Brakes, HydraulicCrash

REAR BRAKES WERE EXCESSIVELY WEARING OUT EVERY 3-4,000 MILES. BRAKE PEDAL WOULD GO TO FLOOR. WOULD HAVE NO REAR BRAKES WHEN THEY WERE APPLIED. HAD AN ACCIDENT DUE TO LACK OF REAR BRAKES, ON ONE OCCASION DEALER STATED THAT THE REAR BRAKES WERE METAL TO METAL, THE BRAKE PADS WERE SCORCHED, MASTER CYLINDER WAS REPLACED, AND THE B…

Read full complaint

REAR BRAKES WERE EXCESSIVELY WEARING OUT EVERY 3-4,000 MILES. BRAKE PEDAL WOULD GO TO FLOOR. WOULD HAVE NO REAR BRAKES WHEN THEY WERE APPLIED. HAD AN ACCIDENT DUE TO LACK OF REAR BRAKES, ON ONE OCCASION DEALER STATED THAT THE REAR BRAKES WERE METAL TO METAL, THE BRAKE PADS WERE SCORCHED, MASTER CYLINDER WAS REPLACED, AND THE BRAKE PROPORTIONING VALVE WAS REPLACED. CONTACTED MANUFACTURER & INFORMED CONSUMER THAT VIN INDICATED A TOW TRUCK, BUT VEHICLE WAS NOT HEAVY ENOUGH TO BE TOW TRUCK. MANUFACTURER COULD NOT GIVE EXPLAINATION FOR LABELING OF TOW TRUCK. IT COULD NOT BE USED AS A TOW TRUCK.BRAKES WOULD CONTINUE TO WEAR OUT DUE TO NOT BEING HEAVY ENOUGH, ACCORDING TO MANUFACTURER'S EXPLANATION. *AK CONSUMER IS REQUESTING A FIX TO THIS DANGEROUS PROBLEM OR A PRO-RATED REPLACEMENT OF THE VEHICLE. *SLC

NHTSA ODI #877210

Mileage unknown · Dec 26, 2000
Service Brakes, Hydraulic

BACK BRAKES DO NOT WORK PROPERLY, FRONT TIRES WERE REPLACED DUE TO FAULTY RIGHT FRONT BRAKES, CONSUMER STATES THAT THERE HAVE BEEN MANY CLOSE CALLS DUE TO THE FAULTY BRAKES. *SLC

NHTSA ODI #876999

Mileage unknown · Nov 24, 2000
Service Brakes, Hydraulic

THE VEHICLE HAS EXPERIENCED MULTIPLE BRAKE FAILURES, SEVERAL REPAIRS COMPLETED HOWEVER THE BRAKES FAILED RESULTING IN THE DRIVER HITTING THE VEHICLE IN FRONT, THE BRAKE SYSTEM IS NOT DESIGNED SUFFICIENTLY FOR THE WEIGHT OF THE VEHICLE. *MJS

NHTSA ODI #557924

Official recalls

1

00V054000 · Steering:linkages:drag:link:connection

Feb 28, 2000

VEHICLE DESCRIPTION: CHASSIS CABS. THE TAPERED HOLE IN THE DRAG LINK END THAT ATTACHES TO THE PITMAN ARM TAPERED BALL STUD MAY BE MACHINED TOO DEEP CAUSING THE HOLE TO BE OVERSIZED. A DRAG LINK WITH AN OVERSIZED HOLE MAY NOT "SEAT" THE PITMAN ARM TAPERED BALL WHEN ASSEMBLED. THIS COULD CAUSE HIGHER THAN NORMAL FRICTION BETWEEN COMPONENTS DURING OPERATION, AND POSSIBLY RESULT IN JOINT SEPARATION OR A BROKEN BALL STUD.

Consequence & remedy

Consequence: IF THE JOINT SEPARATED OR THE BALL STUD BRAKE WHILE THE VEHICLE WAS MOVING, STEERING CONTROL WOULD BE LOST.

Remedy: DEALERS WILL INSPECT THE STEERING LINKAGE ASSEMBLY AND, IF NECESSARY, REPLACE THE DRAG LINK AND THE PITMAN ARM.

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

2

EA04012 · Hydraulic Pump Failres

Opened Apr 30, 2004 · Closed Feb 28, 2005

Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist; Steering:hydraulic Power Assist System

GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.

Additional source detail variants (2)

Service Brakes, Hydraulic:power Assist

GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.

Steering:hydraulic Power Assist System

GM IS CONDUCTING A RECALL ON ALL SUBJECT VEHICLES BUILD BETWEEN MAY 1999 AND OCTOBER 14, 1999.SIGNIFICANT CHANGES WERE INCORPORATED INTO PRODUCTION IN EARLY OCTOBER 1999, AND VEHICLES BUILT AFTER THAT DATE HAVE LOWER WARRANTY FAILURE RATES.THE COMPLAINT AND WARRANTY DATA APPEAR TO SUPPORT THE EFFECTIVENESS OF THESE CHANGES. GM MADE ADDITIONAL CHANGES IN NOVEMBER 1999, FEBRUARY 2000, MAY 2001, AND FEBRUARY 2004.ODI WILL CONTINUE TO MONITOR THIS PROBLEM AND WILL TAKE FURTHER ACTION, IF WARRANTED, IN THE FUTURE.FOR FURTHER TECHNICAL DETAILS SEE THE ATTACHED ENGINEERING ANALYSIS REPORT.

PE04004 · Hydraulic Pump Shaft Failures

Opened Jan 8, 2004 · Closed Apr 30, 2004

Status: closed (inferred from source dates) · Service Brakes, Hydraulic; Service Brakes, Hydraulic:power Assist; Service Brakes, Hydraulic:power Assist:hydraulic; Steering:hydraulic Power Assist System; Steering:hydraulic Power Assist:pump

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.

Additional source detail variants (5)

Service Brakes, Hydraulic

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.

Service Brakes, Hydraulic:power Assist

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.

Service Brakes, Hydraulic:power Assist:hydraulic

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.

Steering:hydraulic Power Assist:pump

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.

Steering:hydraulic Power Assist System

THE PRELIMINARY EVAULATION IS BEING UPGRADED.DURING THE EA ODI WILL LIMITITS INVESTIGATION TO ONLY THOSE VEHICLES EQUIPPED WITH A HYDRO-BOOST SYSTEM, WHICH PROVIDES POWER ASSIST TO THE BRAKING AND STEERING SYTEMS.VACCUUM BRAKE BOOSTER VEHICLES ARE EXCLUDED.ODI HASEXPANDED THE SCOPE OF THE EA TO INCLUDE MODEL YEARS2003 AND 2004, ASDURING THE PE, ODI LEARNED THAT THE HYDROBOAST PUMPS WERE MODIFIED IN FEBRAURY 2004.THEREFORE,ODI HAS EXPANDED THE SCOPE TO INCLUDE THE ADDITIONAL MODEL YEARS.ODI'S IS CONCERNED BECAUSE THISISA SUDDEN FAILURE THAT AFFECTS TWO CRITICAL SYSTEMS OF THE VEHICLE, BRAKES AND STEERING, AT THE SAME TIME.THE ABILITY OF THE OPERATOR TO HANDLE THE DUAL FAILURES IS A CONCERN. FURTHER, THESE VEHICLES TEND TO BE WORK VEHICLES, WITH SOME OVER 10,000 POUNDS GVWR AND MANY EQUIPPED TO PULL LARGE TRAILERS.DUAL FAILURES OF HEAVILY LOADED VEHICLES AND VEHICLES PULLING TRAILERS FURTHER INCREASES THE SAFETY RISK.ODI PLANS TO CONDUCT TESTING TO QUANTIFY THE BRAKING AND STEERING PERFORMANCE DEGRADATION AND THE IMPACT ON SAFE VEHICLE CONTROL, WHEN A HYDROBOAST PUMP FAILS.