U0100 on the 2015 Chevrolet City Express
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 15169B | 2023-12-18. Service bulletin. Crank / No Start ? DTC U0100, U1000, B2193 Stored |
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| PIT5369 | 2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have an engine will crank or turn over but will not start and/or once the engine is running the Service Engine Soon Malfunction Indicator Lamp will illuminate. Technician may find Diagnostic Trouble Codes U0100 and U1000 in multiple high speed modules and the Body Control Module may have B2190 or B2193 as well. Please assure the customer this concern will not cause a walk home. At this time engineering is aware of the concern and working towards a resolution. |
| GCUS-3-423 | 2016-09-14. Service bulletin. 15169B - CUSTOMER SATISFACTION PROGRAM (REVISED SERVICE PROCEDURE). VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE VEHICLE ENGINE WILL CRANK BUT NOT START. A REVERSED WIRE IN THE ENGINE EGI HARNESS CAN LEAD TO AN IGNITION SNEAK CIRCUIT, WHICH CAN PREVENT THE ENGINE CONTROL MODULE FROM COMMANDING A SPARK AT START-UP. DURING THE CRANK / NO START EVENT, A MALFUNCTION INDICATOR LAMP WILL BE ILLUMINATED, AND THE VEHICLE WILL STORE THE FOLLOWING CODE: U0100, U1000, AND B2193. DEALERS ARE TO REVISE THE ENGINE EGI HARNESS. |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.