Service bulletins for the 2018 Ford C-max
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
61 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| SSM 49821 | 2021-06-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK11 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. |
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| SSM 48598 | 2020-03-03. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 2013-2018 C-Max, 2013-2020 Fusion Hybrid/MKZ Hybrid vehicles may exhibit a MIL with Diagnostic Trouble Code (DTC) P0340 and/or P0344. This may occur due to excessive moisture build up in the engine oil. Excess moisture occurs when the vehicle is driven short distances and/or less than 6,000 combined miles per year. To correct the condition, replace the camshaft position sensor (CMP) and change the engine oil. Advise the customer to perform more frequent oil changes and allow the internal combustion engine to reach operating temperature when running to prevent reoccurrence. Refer to the owners guide - maintenance - engine oil check - operating in cold climates and short driving cycles. |
| TSB19-2158 | 2019-06-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Some 2017-2019 Fusion Hybrid/Fusion Energi/MKZ Hybrid and 2017-2018 C-Max vehicles built on or before 27-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P013A stored in the powertrain control module (PCM). This may be due to downstream oxygen sensor parameters in the PCM software. To correct the condition, follow the Service Procedure to update the PCM software. |
| SSM 47790 | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Some 2013-2019 Fusion/MKZ and 2013-2018 C-Max vehicles with 2.0L HEV/PHEV engine may exhibit multiple drivability or electrical concerns with one or more diagnostic trouble codes, being the most common P26C3, P26CA, P26D0, P2800, P2802, U019F and U0284. On Fusion/MKZ inspect connectors C146, C1651, C1812, C168C, C1717 and C134 for signs of water entry or corrosion. On C-Max, inspect connectors C134, C140, C144, C1651, C1717 and C1812 and service as necessary. NOTE: Connector C1717 is only equipped on PHEVs for both Fusion and C-Max. |
| SSM 47502 | 2018-09-24. Service bulletin. ENGINE AND ENGINE COOLING. Some 2017-2018 Fusion, MKZ and C-Max vehicles with 2.0L Gas/Electric engine may exhibit an illuminated MIL with DTC P013A in the Powertrain Control Module(PCM). This may be due to an exhaust system leak. Exhaust leak inspection should be conducted before performing Powertrain Control/Emissions Diagnostics PC/ED Manual diagnostic routines. Inspect for carbon soot/moisture witness marks at exhaust connections. Inspect welds including CMS Boss, flex pipe and flanges. Inspect Catalyst Monitor Sensor(CMS) threads and crush washer to confirm sensor is fully seated in pipe boss. Do not use Vacutec smoke machine to diagnose sensor leaks. Applying soapy water solution to exhaust connections including CMS threads, while exhaust flow is restricted at the tailpipe and exhaust system is pressurized at 5 PSI(do not exceed 5 PSI), will increase ability to identify and confirm leaks |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.