NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
80 reportsMileage unknown · May 16, 2024
Electrical SystemEngineEngine And Engine Cooling
Vehicle regularly stalls while driving, going down hills and any random time at highway speeds, while in traffic, while stopped at traffic controls. This problem happens repeatedly and is apparently related to the “pump mounted driver”, which is prone to failure due to inadequate design for the use and environment. It creates ra…
Read full complaint
Vehicle regularly stalls while driving, going down hills and any random time at highway speeds, while in traffic, while stopped at traffic controls. This problem happens repeatedly and is apparently related to the “pump mounted driver”, which is prone to failure due to inadequate design for the use and environment. It creates random failures Of the pump to deliver fuel.
NHTSA ODI #11589212
127,000 miles · Dec 26, 2016
Service BrakesSteering
DURING OPERATION OF VEHICLE, POWER BRAKING AND STEERING IS LOST. VEHICLE FAILS TO STOP OR STEER EASILY AND THEREFORE WILL NOT STOP IN SAFE DISTANCE. OCCURS USUALLY AT SLOW SPEEDS BUT INCREASES STOPPING DISTANCE AND REQUIRES EXTREME STRENGTH TO TURN. MAY HAPPEN SEVERAL TIMES DURING SHORT TRIP. VEHICLE HAS HYDRAULIC ASSIST (STEERI…
Read full complaint
DURING OPERATION OF VEHICLE, POWER BRAKING AND STEERING IS LOST. VEHICLE FAILS TO STOP OR STEER EASILY AND THEREFORE WILL NOT STOP IN SAFE DISTANCE. OCCURS USUALLY AT SLOW SPEEDS BUT INCREASES STOPPING DISTANCE AND REQUIRES EXTREME STRENGTH TO TURN. MAY HAPPEN SEVERAL TIMES DURING SHORT TRIP. VEHICLE HAS HYDRAULIC ASSIST (STEERING PUMP) BRAKE SYSTEM. DEFINITELY UNSAFE AND APPEARS CANADA HAS ALREADY ACTED ON.
NHTSA ODI #10937435
100,000 miles · Mar 31, 2016
Service Brakes
DEPRESSED BRAKE PEDAL AND BRAKE PEDAL WENT TO FLOOR, HAD VERY HARD TIME STOPPING VEHICLE
NHTSA ODI #10852712
79,000 miles · Aug 17, 2015
Electrical SystemExterior Lighting
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 3500. WHILE DRIVING AT VARIOUS SPEEDS, THE REAR PASSENGER SIDE TURN SIGNAL FAILED WITHOUT WARNING. THE FAILURE RECURRED FOUR TIMES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE REAR PASSENGER SIDE SOCKET FAILED AND NEEDED TO BE REPLACED. THE VEHI…
Read full complaint
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 3500. WHILE DRIVING AT VARIOUS SPEEDS, THE REAR PASSENGER SIDE TURN SIGNAL FAILED WITHOUT WARNING. THE FAILURE RECURRED FOUR TIMES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE REAR PASSENGER SIDE SOCKET FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED BUT THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 79,000. ...UPDATED 01/20/16 *BF *CN
NHTSA ODI #10749170
90,123 miles · Jan 25, 2014
Service Brakes
FIRST TIME THE BRAKE FAILURE OCCURRED WAS IN THE DRIVEWAY. MY SON, A NEWLY LICENSED DRIVER WAS TAKING THE VEHICLE TO SCHOOL WHEN HE CAME BACK INTO THE HOUSE AND SAID THE BRAKES ON THE TRUCK DON'T FEEL RIGHT AND THE PEDAL GOES TO THE FLOOR. HE STATED THAT AS HE WAS BACKING OUT OF THE DRIVEWAY, THE BRAKE PEDAL WENT TO THE FLOOR.…
Read full complaint
FIRST TIME THE BRAKE FAILURE OCCURRED WAS IN THE DRIVEWAY. MY SON, A NEWLY LICENSED DRIVER WAS TAKING THE VEHICLE TO SCHOOL WHEN HE CAME BACK INTO THE HOUSE AND SAID THE BRAKES ON THE TRUCK DON'T FEEL RIGHT AND THE PEDAL GOES TO THE FLOOR. HE STATED THAT AS HE WAS BACKING OUT OF THE DRIVEWAY, THE BRAKE PEDAL WENT TO THE FLOOR. AS A MECHANIC, I TOOK THE VEHICLE TO THE SHOP AND FOUND THE BRAKE LINE FROM THE MASTER CYLINDER TO THE REAR BRAKES HAD FAILED. I REPLACED THIS LINE. LESS THAN A MONTH LATER ANOTHER BRAKE LINE BURST WHEN I HAD MY FOOT ON THE BRAKE IN A PARKING LOT. THIS TIME IT WAS THE BRAKE LINE FROM THE TEE NEAR THE DIFFERENTIAL GOING TO THE LEFT REAR BRAKE. ALL BRAKE LINES WILL NOW BE REPLACED. MY PERSONAL OPINION IS THIS IS A DEFECTIVE PART. I KNOW I LIVE IN AN AREA WHERE DEICING CHEMICALS ARE USED ON THE ROADS IN WINTER, HOWEVER, TO AVOID RUST PROBLEMS ON THIS VEHICLE, THE UNDERSIDE OF THIS VEHICLE IS POWER WASHED WEEKLY DURING THE WINTER MONTHS TO REMOVE THESE CHEMICALS. FRANKLY, THE BRAKE LINES DO NOT LOOK THAT BAD. IT'S LIKE THEY JUST DEVELOP TINY "PIN HOLES" IN SPECIFIC AREAS. *TR
NHTSA ODI #10561481
117,000 miles · Aug 6, 2012
Power TrainSteering
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 3500. THE CONTACT STATED THAT THE VEHICLE WAS BEING REPAIRED FOR UNRELATED BODY DAMAGES WHEN HE WAS INFORMED THAT THE DRIVE SHAFT WAS BROKEN. THE CONTACT WAS INFORMED THAT THE POWER STEERING PUMP AND FILTER WOULD HAVE TO BE REPLACED. THE CONTACT WAS ALSO INFORMED THAT THE VEHICLE W…
Read full complaint
TL* THE CONTACT OWNS A 2000 CHEVROLET SILVERADO 3500. THE CONTACT STATED THAT THE VEHICLE WAS BEING REPAIRED FOR UNRELATED BODY DAMAGES WHEN HE WAS INFORMED THAT THE DRIVE SHAFT WAS BROKEN. THE CONTACT WAS INFORMED THAT THE POWER STEERING PUMP AND FILTER WOULD HAVE TO BE REPLACED. THE CONTACT WAS ALSO INFORMED THAT THE VEHICLE WAS NOT INCLUDED IN THE RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER 05V005000 (POWER TRAIN: DRIVE LINE: DRIVE SHAFT). THE FAILURE AND CURRENT MILEAGES WERE 117,000. UPDATED 9/10/12 *CN UPDATED 09/18/12
NHTSA ODI #10469366
34,250 miles · Jun 18, 2012
Service Brakes
WHILE TRAVELING WEST BOUND ON MD ROUTE 4, UPPER MARLBORO, MD, THE TRAFFIC LIGHT TURNED TO YELLOW AS I WAS APPROACHING DOWERHOUSE ROAD INTERSECTION. I APPLIED MY BRAKES TO STOP AND THE PEDAL SUDDENLY DROPPED A FEW INCHES. I APPLIED MORE PRESSURE AND THE BRAKE SUDDENLY DROPPED TO THE FLOOR AND I LOST ALL BRAKE PEDAL USE. I BLEW…
Read full complaint
WHILE TRAVELING WEST BOUND ON MD ROUTE 4, UPPER MARLBORO, MD, THE TRAFFIC LIGHT TURNED TO YELLOW AS I WAS APPROACHING DOWERHOUSE ROAD INTERSECTION. I APPLIED MY BRAKES TO STOP AND THE PEDAL SUDDENLY DROPPED A FEW INCHES. I APPLIED MORE PRESSURE AND THE BRAKE SUDDENLY DROPPED TO THE FLOOR AND I LOST ALL BRAKE PEDAL USE. I BLEW MY HORN AS I WENT THROUGH THE INTERSECTION AS THE LIGHT TURNED RED. I PUMPED THE BRAKES SEVERAL TIMES AND THERE WERE NO BRAKES. I APPLIED THE EMERGENCY BRAKE AND THAT SLOWED MY VEHICLE AND EVENTUALLY STOPPED IT. UPON RETURNING MY VEHICLE TO MY RESIDENCE, EXAMINATION REVEALED THAT THE REAR METALLIC BRAKE LINE ALONG THE LEFT FRAME RAIL HAD RUSTED OR CORRODED THROUGH WHERE THE PLASTIC ANTI CHAFFING CLIP ATTACHED TO THE BRAKE LINE. FURTHER EXAM REVEALED THE FRONT BRAKE LINE HAD ALSO FAILED. THE FRONT BRAKE LINE HAD RUSTED OR CORRODED AT THE FRONT CENTER PLASTIC CLIP ATTACHED TO THE LOWER CROSSMEMBER. THIS WAS A SIMULTANEOUS FAILURE OF BOTH BRAKE LINES FROM THE SAME BRAKING EVENT. ALTHOUGH MY VEHICLE IS A MODEL YEAR 2000, IT HAS ONLY 34,250 ORIGINAL MILES AND IS SELDOM USED IN THE WINTER TIME. IT IS PRIMARILY USED TO TOW MY BOAT AN AVERAGE OF 15 MILES ROUND TRIP TO THE BOAT RAMP. IT HAS NEVER BEEN IMMERSED. *TR
NHTSA ODI #10462177
56,000 miles · Feb 6, 2012
Service Brakes, HydraulicStructure
HAD MULTIPLE BRAKE LINE FAILURES IN THE LAST 2 MONTHS. FIRST BEING THE MAIN LINE TO THE REAR BRAKES, THEN BRAKE LINE TO THE RIGHT FRONT WHEEL, THEN LINE TO LEFT FRONT WHEEL. WHILE TRUCK WAS BEING WORKED ON IT WAS NOTICED THAT THE FRONT FRAME RAIL WAS STARTING TO RUST THROUGH NEAR WHERE THE FRONT BUMPER MOUNTS, ALSO NOTICED RUST…
Read full complaint
HAD MULTIPLE BRAKE LINE FAILURES IN THE LAST 2 MONTHS. FIRST BEING THE MAIN LINE TO THE REAR BRAKES, THEN BRAKE LINE TO THE RIGHT FRONT WHEEL, THEN LINE TO LEFT FRONT WHEEL. WHILE TRUCK WAS BEING WORKED ON IT WAS NOTICED THAT THE FRONT FRAME RAIL WAS STARTING TO RUST THROUGH NEAR WHERE THE FRONT BUMPER MOUNTS, ALSO NOTICED RUST ON THE FRAME AT FRONT OF CAB AREA, THIS IS NOT SURFACE RUST, THIS IS RUSTED THROUGH THE FRAME AND HAS LARGE RUST SCALES. IT IS PRIMARILY IN THE AREA OF THE CAB AND FORWARD. FRAME SEEMS TO BE OKAY FROM THE CAB BACK, PROBLEM IS WHERE THE FRAME IS ENCLOSED. *TR
NHTSA ODI #10446888
56,000 miles · Jan 24, 2012
Structure
TL* THE CONTACT OWNS A 2000 CHEVROLET K3500. THE CONTACT STATED THAT THERE WAS RUST ON THE FRAME OF THE VEHICLE. THE DEALER WAS CONTACTED BUT ADVISED THAT THEY WERE UNFAMILIAR WITH THE FAILURE AS THE CONTACT DESCRIBED. THE VEHICLE WAS NOT INSPECTED FOR THE FAILURE NOR REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 56,000.
NHTSA ODI #10445108
145,000 miles · Oct 9, 2011
Service Brakes, HydraulicCrashInjury
TIME 15:30. ROAD CONDITIONS: DRY. NO CLOUDS. INCIDENT: SLOWING TO A STOP AT PEDESTRIAN CROSSING, THE ABS SYSTEM ACTIVATED AT APPROXIMATELY 8 MPH. VEHICLE FAILED TO STOP AND LURCHED FORWARD INTO PEDESTRIANS. CONDITION REPLICATES THE ABS FAILURES IN SIMILAR VEHICLES THAT ARE UNDER RECALL; DEALER INDICATED THIS VEHICLE WAS NOT PAR…
Read full complaint
TIME 15:30. ROAD CONDITIONS: DRY. NO CLOUDS. INCIDENT: SLOWING TO A STOP AT PEDESTRIAN CROSSING, THE ABS SYSTEM ACTIVATED AT APPROXIMATELY 8 MPH. VEHICLE FAILED TO STOP AND LURCHED FORWARD INTO PEDESTRIANS. CONDITION REPLICATES THE ABS FAILURES IN SIMILAR VEHICLES THAT ARE UNDER RECALL; DEALER INDICATED THIS VEHICLE WAS NOT PART OF RECALL BUT HAS SAME ISSUE. *TR
NHTSA ODI #10429258
NHTSA investigations
2EA04012 · 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.
Illustration