P2118: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P2118 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

10 complaints filed with NHTSA mention P2118, 8 of them since 2015, across 10 different models. The component owners most often filed it under: vehicle speed control.

Manufacturer service bulletins that name P2118

9 technical service bulletins and manufacturer communications filed with NHTSA mention P2118, from 4 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • KIA CARNIVAL (2022, 2023, 2024), bulletin 10252112: TECHNICAL SERVICE BULLETIN: SERVICE ACTION: ECM LOGIC UPDATE FOR DTC P2118 AND THROTTLE BODY FREEZING (SA514) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are …
  • RAM 1500 (2013, 2014, 2015, 2016), bulletin 10248951: Throttle Blade Icing Service Fix Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DT…
  • HYUNDAI SANTA FE HYBRID (2022), bulletin 10215600: This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Hybrid (TM HEV) / Santa Fe Plug-In Hybrid (TM PHEV) and Tucson Hybrid (NX4 HEV) / Tucson Plug-In Hybrid (NX4 PHEV…
  • HYUNDAI TUCSON HYBRID (2022), bulletin 10232192: This bulletin provides information related to the Engine Control Module (ECM) / Hybrid Control Unit (HCU) software update for Tucson Hybrid (NX4 HEV) / Plug-in Hybrid (NX4 PHEV) vehicles to improve the following DTC and …
  • TOYOTA CAMRY (2010, 2011, 2012, 2013), bulletin 10111246: TT: Customer complaint of MIL (:Check Engine Light) ON Condition. Health Check retrieves DTC P2118 (Throttle Actuator Motor Current Range/Performance).

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.