| Bulletin Number | Vehicle Make | Vehicle Model | Model Year | Summary |
|---|---|---|---|---|
| IK2501419 | IC BUS | CE | 2022 | CE Bus Radio PA not switching to external / internal speakers; only models with feature codes 49CLM or 49CLN<br /> |
| IK1900263 | IC BUS | CE | 2022 | Bus with Cummins B6.7 engine and Dual A/C - Cylinder Head Failures<br /> |
| 20903 | IC BUS | CE | 2021 | The electrical harness to the air dryer heater may have been assembled without the ground circuit for the heater element to function. School bus only; |
| IK1500103 | IC BUS | CE | 2020 | Acceptable Propane Fill Adapter for Refueling<br /> |
| IK1201452 | IC BUS | CE | 2020 | CPA RCT (relative compression test) for PSI propane or gasoline V8 8.8L engines; School bus models<br /> |
| IK2200149 | IC BUS | TC | 2021 | This article is for adding additional protection to the driver's area of the bus to help mitigate the transmission of germs.<br /> |
| IK2200088 | IC BUS | CE | 2021 | Factory Installed Air Conditioning, EC4.0 System operating instructions and the service manual<br /> |
| 20110 | IC BUS | CE | 2021 | Certain school buses equipped with PSI gasoline or propane engines may have engine blocks without the counterbore machined where the oil pressure sens |
| IK2200150 | IC BUS | CE | 2021 | This document will guide the user through determining if there is a sealing issue with the rear emergency door on a CE Bus.<br /> |
| IK0300073 | IC BUS | RE | 2020 | Front Suspension Spring Rattle on RE Bus; only models with feature codes 03ADC or 03ADD mechanical springs<br /> |
| IK2600185 | IC BUS | CE | 2003 | Codes 141, 142, and 621 in a 2-box ECM/IDM; only models with 2-box ECM/IDM from 2003-2007<br /> |
| IK1400005 | IC BUS | CE | 2020 | Driveline Information Center and Troubleshooting Procedures<br /> |
| 20112 | IC BUS | CE | 2021 | Certain IC Bus® CE buses may be built with Webasto fuel lines routed incorrectly.<br /> |
| IK0800591 | IC BUS | CE | 2021 | CE Bus Cowl Panel Relay Kit<br /> |
| 20901 | IC BUS | CE | 2020 | To improve the Oxygen Sensor 2 (O2 sensor 2) On Board Diagnostics (OBD) monitor performance.<br /> |
| IK2200147 | IC BUS | CE | 2021 | CE Bus fuel sending access hole in wrong location; only models with feature 47AEU built between 5/7/19 and 2/19/20<br /> |
| IK2200001 | IC BUS | CESB | 2015 | Bus Air Conditioning Service Contacts for HVAC Information<br /> |
| IK0800411 | IC BUS | CE | 2009 | Body Controller Resource Center<br /> |
| IK0800370 | IC BUS | RE | 2010 | Gauges Drop out or Freeze Intermittently<br /> |
| REC13502 | IC BUS | RE | 2013 | The Injection Pressure Regulator (IPR) harness wire may possibly break due to vibrational damage at the crimp/wire interface.<br /> |
| REC13501 | IC BUS | RE | 2013 | The Injection Pressure Regulator (IPR) harness wire may possibly break due to vibrational damage at the crimp/wire interface.<br /> |
| IK0800417 | IC BUS | CE | 2009 | How to Reboot a Body Controller<br /> |
| IK0800411 | IC BUS | CE | 2009 | Body Controller Resource Center<br /> |
| 19514 | IC BUS | RE | 2020 | The emergency roof hatch external release handle may break and prevent the hatch release mechanism from being actuated from outside the vehicle. Howev |
| 19513 | IC BUS | CE | 2020 | The emergency roof hatch external release handle may break and prevent the hatch release mechanism from being actuated from outside the vehicle. Howev |
| IK1600174 | IC BUS | AC | 2013 | Updating Body Controller Software<br /> |
| IK1201398 | IC BUS | CE | 2020 | ISB 6.7 Frequent Regeneration<br /> |
| MIN13102 | IC BUS | RE | 2014 | To prevent premature steer axle wheel bearing failure.<br /> |
| IK0800374 | IC BUS | AE | 2012 | How To Get A Helios Capture; only 1939 and 1708 multiplexed buses and trucks<br /> |
| IK0800370 | IC BUS | RE | 2010 | Gauges Drop out or Freeze Intermittently<br /> |
| IK1300185 | IC BUS | CE | 2020 | Reduced ISB Engine Exhaust Brake Efficiency; Only vehicles with Allison 1000/2000 series transmissions<br /> |
| IK2200145 | IC BUS | RE | 2018 | Bus Strobe Light Replacements<br /> |
| IK0700097 | IC BUS | HC | 2015 | NEW Ultrasonic DEF Head Unit; All SCR vehicles<br /> |
| IK1201389 | IC BUS | CE | 2020 | Cummins ISB Fan Drive Belt Chirp; Cummins ISB and Cummins B6.7<br /> |
| K0500061 | IC BUS | CE | 2019 | CE Bus Steering Returnability Diagnostics. Only CE buses built during 1/29/2018 thru 6/11/2019 with Tilt Columns, ESP, and Steering Switch Controls. 2 |
| 19511 | IC BUS | CE | 2010 | Long term cycle fatigue (buckling and unbuckling the seat belt) may cause the plastic fingers on the male portion of the buckle to crack and break off |
| 19512 | IC BUS | CE | 2020 | An unintended engine start could occur when the ignition key is in the run position and the transmission is in the park or neutral position. Only mode |
| 19510 | IC BUS | BE | 2010 | Long term cycle fatigue (buckling and unbuckling the seat belt) may cause the plastic fingers on the male portion of the buckle to crack and break off |
| MIN13112 | IC BUS | HC | 2014 | Eaton Hybrid Software Improvement Release<br /> |
| IK2200088 | IC BUS | RE | 2007 | Factory Installed Air Conditioning, EC4.0 System operating instructions and service manual; only models built with feature code 48ADC, 48ADD, 48ADE, 4 |
| IK2200062 | IC BUS | RE | 2012 | Master Disconnect and Noise Kill Solenoid Replacement; only BE, CE Built Prior to April 2012, RE Built Prior to Jan 2010, All FE<br /> |
| IK2200061 | IC BUS | RE | 2006 | Ammeter gauge showing a negative reading at all times; only models built with option code 16HJB<br /> |
| IK2200031 | IC BUS | CE | 2002 | Bus Body Electrical Test Points<br /> |
| IK2200020 | IC BUS | CE | 2006 | Service and Support Information For The ESPAR Auxiliary Fuel Fired Heater Field Service Kit (P/N 2592385C91); only bus models equipped with VT365 or M |
| IK2200018 | IC BUS | CE | 2002 | Reinforcement of the Battery Box; only models built 03/09/1999 to 12/12/2006.<br /> |
| IK2200016 | IC BUS | IC BUS | 9999 | Post Trip Inspection System Wont Disarm or Does Not Operate Correctly; only models with sales codes 0047MYZ and 0047MAH.<br /> |
| IK2200015 | IC BUS | CE | 2006 | Driver's and Stepwell Heaters / Mist or Hazy Film on Windshield; Only BE and CE models built 02/01/2006 to 10/15/2006.<br /> |
| 19507 | IC BUS | CE | 2017 | The ADB22X caliper on the left (driver side) rear corner on school bus applications may experience an unintended reduction in running clearance during |
| 19506 | IC BUS | CE | 2020 | The ADB22X caliper on the left (driver side) rear corner on school bus applications may experience an unintended reduction in running clearance during |
| IK0800036 | IC BUS | RE | 2013 | Pyrometer/Ammeter Module (PAM) Not Reading AMPS Properly<br /> |
| IK0700065 | IC BUS | CE | 2013 | Ordering Parts for Selective Catalyst Reduction (SCR) Exhaust Systems; only models Equipped with SCR Aftertreatment In The United States and Canada.<b |
| IK0500007 | IC BUS | AE | 2012 | Adjustment Procedure for Tilt Only Steering Column; only models with Feature code 0005708<br /> |
| IK0400018 | IC BUS | CE | 2009 | Uneven Brake Pad Wear Between the Inner and Outer Pads on Hydraulic Brake /Pin Slide Vehicles; only models built after 1/2004<br /> |
| IK0500061 | IC BUS | CE | 2020 | CE Bus Steering Returnability Diagnostics. Only models with Tilt Columns, ESP, and Steering Switch Controls<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues<br /> |
| IK0800522 | IC BUS | BE | 2019 | Repair Information for Damaged Headlight Connector<br /> |
| REC18513 | IC BUS | RE | 2019 | The spring actuated parking brake chamber may have been improperly crimped to the service brake chamber section of the brake chamber assembly resultin |
| REC18V-563-18E-0 | IC BUS | CE | 2019 | The wheelchair lift positioning input cam may fail while the lift is in use resulting in a disabled cutoff switch.<br /> |
| IK2600007 | IC BUS | IC BUS | 9999 | How to Get from History and Program a BCM or ESC<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues<br /> |
| IK1201009 | IC BUS | IC BUS | 9999 | Winter Grille Cover<br /> |
| IK0500061 | IC BUS | CE | 2020 | This document will guide the user through diagnosing steering wheels not returning to center on IC CE Buses. Only models with feature code 0005708 (ti |
| 19101 | IC BUS | CE | 2020 | The required Evaporative Emission label may have been printed with an incorrect engine family and/or model year for the engine installed at time of ma |
| IK0800484 | IC BUS | BE | 2019 | Voltage gauge drops on cold engine start-up; Only models built with Cummins ISB, B6.7, ISL, or L9 engines<br /> |
| IK2600215 | IC BUS | BE | 2019 | Applying Advanced Logic Templates; only models equipped with a BCM or ESC<br /> |
| IK2600008 | IC BUS | BE | 2019 | How to Diagnose Electrical Problems with Diamond Logic Builder; only models equipped with a BCM or ESC<br /> |
| IK2600007 | IC BUS | BE | 2019 | How to Get from History and Program a BCM or ESC; only models equipped with a BCM or ESC<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues<br /> |
| IK1400023 | IC BUS | IC BUS | 9999 | Suspension Lean Diagnostics<br /> |
| IK0700097 | IC BUS | BE | 2019 | NEW Ultrasonic DEF Head Unit available; Only models equipped with SCR Aftertreatment.<br /> |
| IK0200013 | IC BUS | CESB | 2015 | Suggested alignment target values when performing a vehicle axle alignment<br /> |
| IK0400016 | IC BUS | CE | 2020 | Aggressive Brakes with Air Brake Foot Valve Leak on Bus; only models with feature code 04WEA - Parking Brake Interlock - With Air Brakes Only<br /> |
| REC18517 | IC BUS | CE | 2020 | The brake air line tube from the relay valve port to the left brake modulator valve may be improperly routed resulting in a kinked air line.<br /> |
| IK1500097 | IC BUS | CE | 2019 | Bus Fuel System Issues; only models with PSI 8.8L gasoline engine<br /> |
| IK1300169 | IC BUS | CE | 2019 | Bus Lacking Power Climbing a Hill; only models with PSI 8.8L gasoline engine<br /> |
| IK1201398 | IC BUS | IC BUS | 9999 | Guide the user through resolving Frequent Regen issues on IC Bus; only models with Cummins ISB 6.7.<br /> |
| IK0900132 | IC BUS | CE | 2019 | Bus coolant hose kink; only models with propane or gasoline engines<br /> |
| IK2200116 | IC BUS | BE | 2019 | Bus Door Adjustment procedure for Electric and Air<br /> |
| IK2200002 | IC BUS | IC BUS | 9999 | Child Reminder (CRS) Post Trip Inspection System; operation and troubleshooting information. Feature code 47BGR, 47DXR, or 47MZP<br /> |
| IK1500097 | IC BUS | CE | 2020 | Gasoline Engine Bus Fuel System Issues; only models built with PSI 8.8 Gasoline Engine<br /> |
| 18520 | IC BUS | CE | 2019 | The brake pressure switch on these buses may become stuck which results in a false fault code and brake warning light.<br /> |
| 18119 | IC BUS | RE | 2019 | Certain buses may have been built with the fan drive misaligned to the fan drive gearbox resulting in possible wear of the splines on the gearbox shaf |
| 18117 | IC BUS | CE | 2020 | Certain buses may have been built without a CH545 Key (matched key) Vandal Lock as ordered by the customer.<br /> |
| REC18509 | IC BUS | CE | 2018 | |
| REC18508 | IC BUS | CE | 2019 | |
| REC18506 | IC BUS | CE | 2019 | The roll stability valve air supply line may be incorrectly routed. This condition does not affect normal brake operation. However, during a stability |
| IK1900220 | IC BUS | CE | 2017 | Geotab with WYE Cable Installation; only models equipped with OnCommand Connection<br /> |
| IK1500096 | IC BUS | CE | 2019 | Gasoline Bus - 60gal Fuel Tank Baffles in Incorrect Locations; only models with gasoline engine<br /> |
| IK2200116 | IC BUS | BE | 2019 | Bus Door Adjustment procedure for Electric and Air; only models built 09/15/11 or later<br /> |
| IK0800522 | IC BUS | BE | 2019 | Repair Information for Damaged Headlight Connector<br /> |
| IK0800445 | IC BUS | 1300 FBC | 2018 | Body Controller Updates for 500k Baud data link<br /> |
| IK0900077 | IC BUS | AE | 2012 | Fuel Fired Engine Coolant Heaters<br /> |
| IK0700097 | IC BUS | BE | 2019 | NEW Ultrasonic DEF Head Unit; only models equipped with SCR Aftertreatment<br /> |
| AFC12949 | IC BUS | HC | 2014 | ECM Recalibration to prevent possible frequent DPF level 1, 2, or 3 excessive soot levels and dash warning lights between 1,000 and 1,500 miles; only |
| IK1201132 | IC BUS | IC BUS | 9999 | Navistar Diesel Particulate Filter Cleaning Service Procedure<br /> |
| IK1201010 | IC BUS | AC | 2013 | Service Interval and Maintenance Lamp information; when equipped with ISX and ISB Cummins<br /> |
| IK0800554 | IC BUS | CE | 2017 | Telematics Installation Guidelines; Only units built with 500K baud rate data link<br /> |
| IK0800060 | IC BUS | IC BUS | 9999 | J1708, 1587, ATA Datalink Troubleshooting<br /> |
| IK0700097 | IC BUS | IC BUS | 9999 | NEW Ultrasonic DEF Head Unit<br /> |
| IK0600020 | IC BUS | IC BUS | 9999 | Determine Wheel Speed or Driveline Vibration using a Smart Phone or tablet and a vibration analysis app.<br /> |
| FSC18105 | IC BUS | CE | 2019 | Certain CE Series school bus models may have been built with an incorrect slot location and size for the vandal lock door header.<br /> |
| IK2200137 | IC BUS | IC BUS | 9999 | Bus Passenger Window Troubleshooting<br /> |
| IK1600246 | IC BUS | CE | 2019 | Hood Cable replacement; only models with Gas or Propane engines<br /> |
| REC18505 | IC BUS | HC | 2019 | The seat belt assemblies may not satisfy the requirements of FMVSS 210 / CMVSS 213. In the event of a vehicle accident, there is an increased risk tha |
| IK1500097 | IC BUS | CE | 2019 | Known fueling issues for buses equipped with the PSI 8.8 Gasoline Engine<br /> |
| IK1201360 | IC BUS | HC | 2018 | Cylinder Performance Analyzer (CPA) Resource Center<br /> |
| IK2200143 | IC BUS | RE | 2019 | Diagnosis and repair of intermittent operation of the Child Checkmate reset button.<br /> |
| IK0900077 | IC BUS | BE | 2018 | Optional Fuel Fired Engine Coolant Heaters fuel fired engine coolant heaters may require the fuel system to be primed prior to use.<br /> |
| IK1201299 | IC BUS | AC | 2013 | Engine Oil Capacities All Electronic International Engines 1994 - Present. Cummins ISB, ISM & ISX<br /> |
| AFC15902 | IC BUS | CE | 2017 | The Body Control Module (BCM) may not go to sleep when the ignition is in the OFF position and could result in excessive battery drain when the vehicl |
| FSC18110 | IC BUS | CE | 2019 | The Cummins ISB engine may have been assembled with a modified fuel filter mounting bracket resulting in possible improperly routed engine grid heater |
| IK0800092 | IC BUS | FE | 2006 | First Check to make when Troubleshooting any Body Controller or ESC Issue<br /> |
| IK0800059 | IC BUS | FE | 2006 | Brake Lights Staying On<br /> |
| REC13511 | IC BUS | RE | 2006 | The occupant of the adjacent seat located to the rear of the flip seat could suffer a pinch point injury to their toes and/or foot as a result of this |
| IK2200129 | IC BUS | IC BUS | 9999 | Rosco Mirror Acrylic Lens Care and Cleaning Instructions<br /> |
| IK2200119 | IC BUS | IC BUS | 9999 | IC Bus Operator's Manuals<br /> |
| IK2200128 | IC BUS | BE | 2013 | Driver Heater Resistor; only with feature code 48GHB and 48GHC, produced 2011 through March 2013.<br /> |
| REC18502 | IC BUS | CE | 2018 | A fuel system relay for the propane booster pump and scavenge pump may experience intermittent continuity causing the fuel pump to stop running result |
| REC18501 | IC BUS | CE | 2019 | A fuel system relay for the propane booster pump and scavenge pump may experience intermittent continuity causing the fuel pump to stop running result |
| IK1600246 | IC BUS | CE | 2019 | Hood Cable replacement for Gas and Propane CE Bus only<br /> |
| IK0800351 | IC BUS | IC BUS | 9999 | J1939 Data Link Source Address Information<br /> |
| IK0700106 | IC BUS | AC | 2013 | DEF Tank Nozzle Insert; only models with SCR systems<br /> |
| IK1600202 | IC BUS | AC | 2013 | Water entry into the cab / Adding Cowl tray seal; models built prior to 11/11/2013<br /> |
| IK1201010 | IC BUS | IC BUS | 9999 | Service Interval and Maintenance Lamp information; Only models with Cummins ISX or ISB engines<br /> |
| IK1201009 | IC BUS | CE | 2002 | Medium duty cole weather operation / solid winter front; EXCLUDING High Cab DuraStar<br /> |
| IK1200168 | IC BUS | RE | 2009 | Hydraulic Cooling Fan Diagnostics<br /> |
| IK0800415 | IC BUS | FE | 2011 | Turn Signal Troubleshooting<br /> |
| IK2200139 | IC BUS | HC | 2018 | Driver?s seat belt tongue button; Only with Seat Belt Part numbers 4091405c1 thru 4091408c1<br /> |
| REC12526 | IC BUS | HC | 2010 | If there is a failure of one of the parking brake components which leads to loss of air pressure, it can lead to possible inadvertent partial/total pa |
| REC12525 | IC BUS | RCCB | 2009 | The engine high pressure oil line may develop a leak or possibly rupture.<br /> |
| REC12523 | IC BUS | RE | 2006 | The engine high pressure oil line may develop a leak or possibly rupture.<br /> |
| IK2200116 | IC BUS | RE | 2012 | Bus Door Adjustment procedure for Electric and Air; only models built on 9/15/2011 and later<br /> |
| IK2200123 | IC BUS | RE | 2010 | Hydraulic Hose and Alternator Area Maintenance<br /> |
| IK1201359 | IC BUS | BE | 2017 | Breather Filter and Crankcase Tube Freezing Issue in Below Freezing Temperatures; only models with Cummins ISB 6.7 and QSB 6.7<br /> |
| IK1200636 | IC BUS | AC | 2013 | EPA 2010 MaxxForce 7 Engine Calibration Releases<br /> |
| IK0800485 | IC BUS | CESB | 2015 | Cluster Software Update Instructions<br /> |
| AFC 14905 | IC BUS | CESB | 2015 | Lower radiator hose may chafe on the frame rail<br /> |
| REC17505 | IC BUS | CE | 2019 | The hydraulic brake drop hose to the brake calipers on the steer axle wheel ends may be improperly routed resulting in possible contact with the tire. |
| IK0800336 | IC BUS | IC BUS | 9999 | Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative<br /> |
| MIN14112 | IC BUS | CE | 2015 | Activate the PTO parameters; only on CE buses powered by a Cummins ISB 6.7<br /> |
| MIN14107 | IC BUS | CE | 2015 | Allison TCM Reprogramming; only with ISB engines and Allison 2500PTS transmissions<br /> |
| IK1300055 | IC BUS | BE | 2016 | Transmission Upshifting too Fast; Only with Allison Gen 4 LCT (1000 and 2000 series) Transmission<br /> |
| IK0700065 | IC BUS | CE | 2013 | Ordering Parts for Selective Catalyst Reduction (SCR) Exhaust Systems; Only 2013 models and forward with SCR<br /> |
| IK1300015 | IC BUS | IC BUS | 9999 | Shift Lever Interlock Solenoid for the Allison Transmission Won?t Unlock with Brake Pedal Depressed; only with Allison 2000 series transmission with p |
| IK0800478 | IC BUS | IC BUS | 9999 | Headlight Condensation or Frost; excludes sealed beam headlights such as on WorkStar, Paystar and 9900i)<br /> |
| REC13521 | IC BUS | RE | 2015 | Certain IMMI Driver seat belt assemblies with L9 end-release seat belt buckles may fail to conform to the requirements of Federal Motor Vehicle Safety |
| REC13520 | IC BUS | RE | 2015 | Certain IMMI Driver and/or passenger seat belt assemblies with L9 end-release seat belt buckles may fail to conform to the requirements of Federal Mot |
| REC13519 | IC BUS | RE | 2015 | Certain IMMI Driver seat belt assemblies with L9 end-release seat belt buckles may fail to conform to the requirements of Federal Motor Vehicle Safety |
| IK2200130 | IC BUS | IC BUS | 9999 | IC Bus Electric Entrance Door Fuse<br /> |
| IK1900158 | IC BUS | IC BUS | 9999 | 2010 Dash Cluster Lamp Operation with new DPF Lamp Locations , Functions and Regeneration Instructions<br /> |
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