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Buzz Service Bulletins

Buzz Service Bulletins are designed to provide you with important service and warranty information you need to keep your buses on the road. Here you’ll find useful and helpful service and maintenance tips, step-by-step repair procedures, and warranty information to help make your service and maintenance job easier.

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Issue No.   Title   Date
231   Testing Diesel Exhaust Fluid (DEF) – Thomas Built Saf-T-Liner C2   July 11, 2017
223   Changing Warning Lights – Thomas Built Saf-T-Liner C2   May 15, 2017
222   Carolina Thomas Seat Cover & Foam Quick-Reference Chart   May 10, 2017
221   Easy Air Disc Brake Pad Replacement – Thomas Saf-T-Liner C2   May 8, 2017
220   Carolina Thomas Service Training Center: Preparing for the Future of Bus Technology   May 2, 2017
218   Interior Dome Light Replacement – Thomas Saf-T-Liner C2   Apr. 24, 2017
217   Nitrite Free OAT Extended Life Coolant Now Standard in Thomas Saf-T-Liner C2 Buses   Apr. 18, 2017
207   Need Help Converting Your Yellow Bus Into A Local Activity Bus? Carolina Thomas Body Shop Is Here To Help!   Feb. 1, 2017
204   Worried About Road Salt On Your Buses? Wash Bot Can Help!   Jan. 11, 2017
200   Replace Your IC VT365 Engine with Cummins Repower Package    Nov. 3, 2016
195   The Wash Bot: The Efficient Way to Clean Your Buses   Oct. 7, 2016
194   Thomas Built Buses Exclusive Free 7-Year Allison Extended Warranty for 2017 Saf-T-Liner C2s   Sep. 26, 2016
179   Important Service Notice – Saf-T-Liner C2 Rear Axle Vent   May 23, 2016
177   Nexiq USB-Link Upgrade and Diagnostic Connector for 2016 Emission Buses   May 2, 2016
167   Winter Service & Maintenance Tip: Saf-T-Liner C2 – Wait To Start   Feb. 16, 2016
163   Carolina Thomas is the Insta-Chain Distributor and Authorized Installer for North Carolina   Jan. 29, 2016
162   Newly Expanded Parts Resources   Jan. 21, 2016
136   Thomas Saf-T-Liner C2 Bus Seat Improvements for NC DPI State Contract Buses   May 6, 2015
134   Training Video – Saf-T-Liner C2 Window Frame Cover Repair Procedure   March 12, 2015
130   Adjusting Tilt/Telescope Steering Wheel on Thomas FS65 and C2 Buses   Sept. 17, 2014
127   Torque Tips for Meritor 7.17:1 Rear Axle Ratio   July 10, 2014
126   NOW AVAILABLE! Carolina Thomas Custom C2 Electrical Terminal Repair Kit (Part No. 561T)   June 27, 2014
123   Training Video – C2 Fuel Fill Cup Replacement   April 4, 2014
118   Carolina Thomas Proudly Introduces Our New Training Video Service   Jan. 7, 2014
118   Training Video – C2 Storage Box Repair   Jan. 7, 2014
105   Retrieving & Managing Fuel Economy Data on Thomas Saf-T-Liner C2   Feb. 6, 2013
101   Changing Road Speed on Saf-T-Liner C2 with Cummins   Jan. 3, 2013
97   Oil Analysis Update – Reiterating DPI Message #608   Oct. 8, 2012
95   Service Tips and Access to Information   Aug. 7, 2012
94   UPDATE- C2 PDM Service Bulletin-PDM Harness Bulletin (See Buzz 90)   July 30, 2012
93   Replacing 50A Relay with 70A Relay in AC Electrical Box   July 30, 2012
90   PDM Chassis Harness Service Bulletin   June 17, 2012
88   A/C Service Reminder – DPI Message #590   June 8, 2012
87   C2 Headlight Moisture – Service Bulletin 54-14   May 30, 2012
81B   C2 Dome Light – Correct Bulb   April 24, 2012
79   Additional Copy of SF249A – Proper Wiring Securement   March 1, 2012
78   FS 65 Caterpillar Grid Heater Wire Connection   Feb. 28, 2012
70   Fault Codes Retrieved Out of Dash   Oct. 31, 2011
67   Turn Signal Switch – Unintended Wiper Activation   Sept. 6, 2011
62   A/C Repairs on Non-Warranty Buses Available   May 10, 2011
59   Cummins – Good News for CPWA Counties   April 28, 2011
58   Certified Letter to all Directors – Warranty Instructions   March 3, 2011
57   Diesel Exhaust Filter Lights and Regeneration Process   Feb. 23, 2011
54   Three C’s for Thomas Bus Warranty   Feb. 10, 2011
48   Rear Tag Light Information Update   Nov. 11, 2010
46   Stop Arm Troubleshooting Guide   Oct. 1, 2010
45B   Switch Hub Module Troubleshooting Spreadsheet   Sept. 24, 2010
45A   Switch Hub Module Troubleshooting Guide   Sept. 24, 2010
44   Battery Box Tray Slides- Notified to Watch   Sept. 23, 2010
43   Crossmember Update-Expand to Include MBE- Loose Bolts   Sept. 23, 2010
42   Stop Arm -Cross Arm Pressure Regulator Troubleshooting   Sept.15, 2010
41   Roof Strobe Light Troubleshooting Procedures   Sept. 14, 2010
40   TBB Online and Access Freightliner Info   Sept. 3, 2010
37   Storage Box Bracket Repair   Aug. 20, 2010
36   Coolant Surge Tank Splitting – Repair Procedure   Aug. 11, 2010
34   FS 65 Wear Plate for Accelerator Pedal   Aug. 5, 2010
30   Service Link Access Information and Instructions   May 27, 2010
28   Warranty Information Update   March 24, 2010
27   Chassis Service Bulletin 27 and 27A – Crossmembers on C2s   March 19, 2010
25   Fuel Leak on Cummins Fuel Pump   Feb. 11, 2010
21   Crossmember Replacement Program   Jan. 21, 2010
20   Thomas Bus will Troubleshoot Itself PLUS Diagnostic Code Cheat Sheets   Jan. 14, 2010
18   LED Warning Lights   Dec. 23, 2009
13   Warranty – Additional Tip Light Positions   Oct. 23, 2009
12   Warranty Training Procedures   Oct. 14, 2009
8   MBE Fan Hub Bearing Repair   June 26, 2009
4   Diesel Exhaust Filter Lights and Regeneration Process   June 9, 2009
3   Cummins EGR Battery Drain   June 3, 2009
1   Introducing The Bus Buzz   March 1, 2009