P0108: 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 P0108 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

7 complaints filed with NHTSA mention P0108, 4 of them since 2015, across 7 different models. The component owners most often filed it under: electrical system.

Manufacturer service bulletins that name P0108

47 technical service bulletins and manufacturer communications filed with NHTSA mention P0108, from 10 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CADILLAC ESCALADE NA (2021), bulletin 10190418: This Preliminary information communicatesSome customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Senso…
  • CHEVROLET EXPRESS (2021), bulletin 10190418: This Preliminary information communicatesSome customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Senso…
  • GMC SAVANA (2021), bulletin 10190418: This Preliminary information communicatesSome customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Senso…
  • CHEVROLET SILVERADO 1500 (2021), bulletin 10190408: This Preliminary information communicatesSome customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Senso…
  • GMC SIERRA 1500 (2021), bulletin 10190408: This Preliminary information communicatesSome customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Senso…
  • CADILLAC ESCALADE ESV (2021), bulletin 10197321: Service Update Bulletin. Certain vehicles may have an erratic signal coming from the engine manifold absolute pressure (MAP) sensor. Customers may notice the service engine soon (SES) lamp illuminate or was illuminated a…

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.