DEFECTIVE AIR BRAKE EQUIPMENT ON MCI D4500 BUSES.*MR IF THERE IS LESS THAN 90 PCI IN THE AIR SYSTEM THERE IS AN AUDIBLE BUZZER AND THE HAZARD LIGHT ILLUMINATES INDICATING LOW AIR. THE EMERGENCY BRAKE SYSTEM DOES NOT WORK UNTIL THE AIR PRESSURE IS ALMOST "0" ON THE MANOMETER ON THE DASHBOARD. *BF *NM
2002 Mci D4500
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all D4500 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.
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, Air. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Air complaints
1 reportsOfficial recalls
725V853000 · Structure:body:door ; Visibility:glass, Side/rear
Dec 10, 2025
Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E4500, D4000, 102D3ISTV, D4500, J4500, D4000ISTV, D4005, D4505, and J3500 transit buses. Please refer to MCI's recall report for specific model year information. The front door lower curb view glazing material is incorrect. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 205, "Glazing Materials."
Consequence & remedy
Consequence: The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash.
Remedy: MCI will replace the glass, free of charge. Owner notification letters were mailed February 4, 2026. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is 22-005.
Additional source detail variants (2)
Visibility:glass, Side/rear
Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E4500, D4000, 102D3ISTV, D4500, J4500, D4000ISTV, D4005, D4505, and J3500 transit buses. Please refer to MCI's recall report for specific model year information. The front door lower curb view glazing material is incorrect. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 205, "Glazing Materials."
Consequence: The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash.
Remedy: MCI will replace the glass, free of charge. Owner notification letters were mailed February 4, 2026. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is 22-005.
Structure:body:door
Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E4500, D4000, 102D3ISTV, D4500, J4500, D4000ISTV, D4005, D4505, and J3500 transit buses. Please refer to MCI's recall report for specific model year information. The front door lower curb view glazing material is incorrect. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 205, "Glazing Materials."
Consequence: The incorrect window glazing material may reduce the driver's visibility, increasing the risk of a crash.
Remedy: MCI will replace the glass, free of charge. Owner notification letters were mailed February 4, 2026. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is 22-005.
13V498000 · Electrical System
Oct 17, 2013
Motor Coach Industries (MCI) is recalling certain model year 2000-2012 D, E, G and J series coaches manufactured January 2000 through June 2011 and equipped with Sure Power battery equalizers containing a particular epoxy sealing, aka 'potting', compound. The specific potting compound used in the subject products for insulation was found to be capable of conducting electricity after being exposed to heat.
Consequence & remedy
Consequence: Once electrically conductive, the material is capable of melting and burning, increasing the risk of a fire.
Remedy: MCI will notify owners, and Sure Power will replace the equalizers, free of charge. Owners may contact MCI at 1-847-285-2000. This campaign is MCI service bulletin 401.
10V087000 · Equipment Adaptive/mobility
Mar 9, 2010
MCI IS RECALLING CERTAIN MODEL YEAR 2000-2009 D4000, MODEL YEAR 2001-2010 D4500 AND MODEL YEAR 2005-2007 D4505 COACHES EQUIPPED WITH RICON WHEELCHAIR LIFT (WCL) AND A CASSETTE-TYPE WCL COMPARTMENT DOOR. THE WHEELCHAIR LIFT MAY BECOME DISENGAGED FROM A LOCKED POSITION AND SLIDE UNRESTRAINED ON ITS ROLLERS IN THE STORAGE STRUCTURE, POTENTIALLY BREAKING THROUGH THE CASSETTE DOOR AND EXTENDING BEYOND THE OUTSIDE OF THE DOOR WHEN THE COACH IS IN MOTION, PARTICULARLY WHEN THE COACH IS MAKING A LEFT TURN.
Consequence & remedy
Consequence: IF THE COACH IS IN MOTION, POTENTIAL INJURY TO PERSONS AND/OR DAMAGE TO OTHER VEHICLES OR PROPERTY COULD OCCUR.
Remedy: MCI WILL PROVIDE PARTS AND LABOR TO INSTALL FREE OF CHARGE TO CUSTOMERS, A RICON DESIGNED RETROFIT KIT THAT INCLUDES A SPRING LOADED LOCK MECHANISM. THE SAFETY RECALL BEGAN ON MARCH 31, 2010. OWNERS MAY CONTACT MCI CUSTOMER SERVICE LINE AT 1-800-241-2947.
09V432000 · Interior Lighting
Nov 3, 2009
MCI IS RECALLING CERTAIN MODEL YEAR 2002-2009 D SERIES COACHES, EQUIPPED WITH LUMINATOR HORIZON LED SIDE DESTINATION SIGNS. THE CONNECTOR BOARD CAN CORRODE DUE TO AN ACCUMULATION OF MOISTURE UNDER THE CONNECTOR.
Consequence & remedy
Consequence: A SHORT COULD OCCUR, POSSIBLY CAUSING SMOKE AND FIRE.
Remedy: MCI WILL NOTIFY OWNERS AND LUMINATOR WILL REPAIR THE BUSES FREE OF CHARGE. PLEASE SEE LUMINATOR'S DEFECT REPORT 09E-054. THE SAFETY RECALL BEGAN ON NOVEMBER 9, 2009. OWNERS MAY CONTACT LUMINATOR AT 1-972-516-3033 OR MCI CUSTOMER SERVICE AT 1-800-241-2947.
06V481000 · Electrical SYSTEM:12V/24V/48V Battery
Dec 19, 2006
ON CERTAIN MOTOR COACHES, THE BOOST CONNECTOR HOUSING CAN FAIL OVER TIME, EXPOSING THE POSITIVE AND NEGATIVE TERMINALS.
Consequence & remedy
Consequence: THIS COULD RESULT IN THE GROUNDING OF AN UNPROTECTED CIRCUIT AND COULD LEAD TO A THERMAL EVENT IF NOT CORRECTED.
Remedy: CUSTOMERS ARE BEING ADVISED TO REMOVE THE BOOST CONNECTOR AND DISCARD IT. CUSTOMERS WILL BE OFFERED A NEW DESIGN BOOST CONNECTOR AS AN ALTERNATIVE AT NO COST. THE RECALL BEGAN ON JANUARY 2, 2007. OWNERS MAY CONTACT MCI AT 1-800-241-2947.
06V140000 · Engine And Engine Cooling:engine:diesel
Apr 27, 2006
ON CERTAIN MOTOR COACHES EQUIPPED WITH DETROIT DIESEL SERIES 60 ENGINES, THE TURBOCHARGER COMPRESSORS CAN FAIL.
Consequence & remedy
Consequence: A FIRE CAN RESULT SHOULD THE TURBOCHARGER FAIL.
Remedy: DETROIT DIESEL IS CONDUCTING THIS RECALL (PLEASE SEE 06E019000) AND WILL REMEDY THESE MOTOR COACHES. THE ENGINES WILL BE REPAIRED FREE OF CHARGE. OWNERS MAY CONTACT DETROIT DIESEL AT 313-592-3708 OR MOTOR COACH AT 866-624-2622.
02V103000 · Electrical System:wiring
Apr 4, 2002
ON CERTAIN MOTOR COACHES THAT HAVE MULTIPLEX SYSTEMS, WHEN THE COACH'S DEFROSTER MOTOR IS ACTIVATED, CERTAIN HIGH SPEED CELL NET CONTROLLERS (HCNC) MAY LOCK UP.
Consequence & remedy
Consequence: AS A CONSEQUENCE OF THIS LOCK UP, THE FUNCTIONS AND SYSTEMS THAT ARE PART OF THE MULTIPLEX SYSTEM WILL REMAIN AT THEIR STATUS IMMEDIATELY PRIOR TO THE LOCKUP. THIS COULD AFFECT THE ELECTRICAL OPERATION OF BRAKE LIGHTS, TURN SIGNALS, IGNITION, INSTRUMENTATION, ETC.
Remedy: OWNERS WILL BE PROVIDED WITH DEFROSTER MOTOR RELAYS EQUIPPED WITH SUPPRESSION RESISTORS AND INSTALLATION INSTRUCTIONS. DEALERS WILL ALSO REPLACE THE HCNC MODULES WITH UPGRADED MODULES. OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING APRIL 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MCI AT 1-800-241-2947.
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
2EA12007 · Mci Drive Shaft Safety Loop Failures
Opened Sep 13, 2012 · Closed Dec 3, 2015
Status: closed (inferred from source dates) · Power Train:driveline; Suspension:multiple Axle; SUSPENSION:REAR:AXLE:NON-POWERED Axle Assembly
In the fall of 2011, network contacts made ODI aware of four (4) incidents of drive shaft failure on the subject buses involving a loss of vehicle control.Two of the incidents were relatively low speed non-crash events; and two resulted in motor coach rollovers.All four events showed signs of a common failure mode.The incidents and crashes studied during this investigation all resulted from a series of complex events that began with the the yoke journal ears on the drive shafts fracturing.Once the drive shaft failed. it was not adequately contained by a drive shaft safety loop or structure.The spinning and unrestrained drive shaft caused severe damage to components on the steerable tag axle at the rear of the vehicle and created a forced steering condition.Once the rear of the bus was being forcibly steered by the tag axle, the driver lost control of the vehicle.These conclusions are based on the forensics evidence and testing conducted by the Vehicle Research and Test Center (VRTC).The VRTC test report is attached to this closing resume that provides details on how the test center was able to conclusively identify the defective components on the buses and demonstrate the sequence of events that caused the buses to crash.Prior to the drive shaft failure events, there were no indications of improper maintenance or that maintenance was required that would have prevented the incidents.Additionally, the U-joints on the incident vehicles were found to be in good working condition at the time of the failure. Finally, records of driver interviews indicated a sudden onset of the failure with no warning.Following the VRTC testing, MCI issued recall 14V-335 involving certain model year 1993-1995 102DL3 motor coaches manufactured November 1992 to January 1995, and 2006 and 2008 D4505 motor coaches manufactured June 2005 to April 2008.The affected buses are equipped with a drive shaft with a compressed length of 30 inches or less (allowing it to escape containment if it fails), a steerable trailing tag axle equipped with a system that changes the axle caster when the vehicle is in reverse travel and no electronic stability control (ESC).Recall 14V-335 addresses the concerns of this investigation.The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
Additional source detail variants (3)
Power Train:driveline
In the fall of 2011, network contacts made ODI aware of four (4) incidents of drive shaft failure on the subject buses involving a loss of vehicle control.Two of the incidents were relatively low speed non-crash events; and two resulted in motor coach rollovers.All four events showed signs of a common failure mode.The incidents and crashes studied during this investigation all resulted from a series of complex events that began with the the yoke journal ears on the drive shafts fracturing.Once the drive shaft failed. it was not adequately contained by a drive shaft safety loop or structure.The spinning and unrestrained drive shaft caused severe damage to components on the steerable tag axle at the rear of the vehicle and created a forced steering condition.Once the rear of the bus was being forcibly steered by the tag axle, the driver lost control of the vehicle.These conclusions are based on the forensics evidence and testing conducted by the Vehicle Research and Test Center (VRTC).The VRTC test report is attached to this closing resume that provides details on how the test center was able to conclusively identify the defective components on the buses and demonstrate the sequence of events that caused the buses to crash.Prior to the drive shaft failure events, there were no indications of improper maintenance or that maintenance was required that would have prevented the incidents.Additionally, the U-joints on the incident vehicles were found to be in good working condition at the time of the failure. Finally, records of driver interviews indicated a sudden onset of the failure with no warning.Following the VRTC testing, MCI issued recall 14V-335 involving certain model year 1993-1995 102DL3 motor coaches manufactured November 1992 to January 1995, and 2006 and 2008 D4505 motor coaches manufactured June 2005 to April 2008.The affected buses are equipped with a drive shaft with a compressed length of 30 inches or less (allowing it to escape containment if it fails), a steerable trailing tag axle equipped with a system that changes the axle caster when the vehicle is in reverse travel and no electronic stability control (ESC).Recall 14V-335 addresses the concerns of this investigation.The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
Suspension:multiple Axle
In the fall of 2011, network contacts made ODI aware of four (4) incidents of drive shaft failure on the subject buses involving a loss of vehicle control.Two of the incidents were relatively low speed non-crash events; and two resulted in motor coach rollovers.All four events showed signs of a common failure mode.The incidents and crashes studied during this investigation all resulted from a series of complex events that began with the the yoke journal ears on the drive shafts fracturing.Once the drive shaft failed. it was not adequately contained by a drive shaft safety loop or structure.The spinning and unrestrained drive shaft caused severe damage to components on the steerable tag axle at the rear of the vehicle and created a forced steering condition.Once the rear of the bus was being forcibly steered by the tag axle, the driver lost control of the vehicle.These conclusions are based on the forensics evidence and testing conducted by the Vehicle Research and Test Center (VRTC).The VRTC test report is attached to this closing resume that provides details on how the test center was able to conclusively identify the defective components on the buses and demonstrate the sequence of events that caused the buses to crash.Prior to the drive shaft failure events, there were no indications of improper maintenance or that maintenance was required that would have prevented the incidents.Additionally, the U-joints on the incident vehicles were found to be in good working condition at the time of the failure. Finally, records of driver interviews indicated a sudden onset of the failure with no warning.Following the VRTC testing, MCI issued recall 14V-335 involving certain model year 1993-1995 102DL3 motor coaches manufactured November 1992 to January 1995, and 2006 and 2008 D4505 motor coaches manufactured June 2005 to April 2008.The affected buses are equipped with a drive shaft with a compressed length of 30 inches or less (allowing it to escape containment if it fails), a steerable trailing tag axle equipped with a system that changes the axle caster when the vehicle is in reverse travel and no electronic stability control (ESC).Recall 14V-335 addresses the concerns of this investigation.The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
SUSPENSION:REAR:AXLE:NON-POWERED Axle Assembly
In the fall of 2011, network contacts made ODI aware of four (4) incidents of drive shaft failure on the subject buses involving a loss of vehicle control.Two of the incidents were relatively low speed non-crash events; and two resulted in motor coach rollovers.All four events showed signs of a common failure mode.The incidents and crashes studied during this investigation all resulted from a series of complex events that began with the the yoke journal ears on the drive shafts fracturing.Once the drive shaft failed. it was not adequately contained by a drive shaft safety loop or structure.The spinning and unrestrained drive shaft caused severe damage to components on the steerable tag axle at the rear of the vehicle and created a forced steering condition.Once the rear of the bus was being forcibly steered by the tag axle, the driver lost control of the vehicle.These conclusions are based on the forensics evidence and testing conducted by the Vehicle Research and Test Center (VRTC).The VRTC test report is attached to this closing resume that provides details on how the test center was able to conclusively identify the defective components on the buses and demonstrate the sequence of events that caused the buses to crash.Prior to the drive shaft failure events, there were no indications of improper maintenance or that maintenance was required that would have prevented the incidents.Additionally, the U-joints on the incident vehicles were found to be in good working condition at the time of the failure. Finally, records of driver interviews indicated a sudden onset of the failure with no warning.Following the VRTC testing, MCI issued recall 14V-335 involving certain model year 1993-1995 102DL3 motor coaches manufactured November 1992 to January 1995, and 2006 and 2008 D4505 motor coaches manufactured June 2005 to April 2008.The affected buses are equipped with a drive shaft with a compressed length of 30 inches or less (allowing it to escape containment if it fails), a steerable trailing tag axle equipped with a system that changes the axle caster when the vehicle is in reverse travel and no electronic stability control (ESC).Recall 14V-335 addresses the concerns of this investigation.The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
PE12007 · Mci Driveshaft Safety Loop Failures
Opened Mar 21, 2012 · Closed Sep 20, 2012
Status: closed (inferred from source dates) · Power Train:driveline; Suspension:multiple Axle; SUSPENSION:REAR:AXLE:NON-POWERED Axle Assembly
ODI has identified certain MCI coaches with powertrain configurations that may allow a driveshaft separated at the rearward universal joint to escape the guardian structure of the steerable tag axle and damage steering and braking components.The damaged components may increase the risk of a loss of vehicle control. The subject coaches include 806 model year 1992 through 2012 MCI D and E series motor coaches with steerable tag axles.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA12-007) to further study the alleged defect and to determine if a safety defect exists. The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
Additional source detail variants (3)
Power Train:driveline
ODI has identified certain MCI coaches with powertrain configurations that may allow a driveshaft separated at the rearward universal joint to escape the guardian structure of the steerable tag axle and damage steering and braking components.The damaged components may increase the risk of a loss of vehicle control. The subject coaches include 806 model year 1992 through 2012 MCI D and E series motor coaches with steerable tag axles.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA12-007) to further study the alleged defect and to determine if a safety defect exists. The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
Suspension:multiple Axle
ODI has identified certain MCI coaches with powertrain configurations that may allow a driveshaft separated at the rearward universal joint to escape the guardian structure of the steerable tag axle and damage steering and braking components.The damaged components may increase the risk of a loss of vehicle control. The subject coaches include 806 model year 1992 through 2012 MCI D and E series motor coaches with steerable tag axles.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA12-007) to further study the alleged defect and to determine if a safety defect exists. The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
SUSPENSION:REAR:AXLE:NON-POWERED Axle Assembly
ODI has identified certain MCI coaches with powertrain configurations that may allow a driveshaft separated at the rearward universal joint to escape the guardian structure of the steerable tag axle and damage steering and braking components.The damaged components may increase the risk of a loss of vehicle control. The subject coaches include 806 model year 1992 through 2012 MCI D and E series motor coaches with steerable tag axles.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA12-007) to further study the alleged defect and to determine if a safety defect exists. The ODI report cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID: ODI Number 10447575.
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