C1A16: owner reports and bulletins

Chassis. We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got C1A16 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

11 complaints filed with NHTSA mention C1A16, 11 of them since 2015, across 5 different models. The component owners most often filed it under: service brakes.

Most-reported models

VehicleComplaintsModel years reported
NISSAN ROGUE52017, 2018

Manufacturer service bulletins that name C1A16

10 technical service bulletins and manufacturer communications filed with NHTSA mention C1A16, from 2 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • NISSAN NISSAN, bulletin 10179568: INTELLIGENT CRUISE CONTROL INOPERATIVE AND AEB/FEB WARNING LIGHT ON OR RADAR OBSTRUCTION MESSAGE DISPLAYED WITH DTC C1A16 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous ve…
  • INFINITI INFINITI, bulletin 10240535: AEB WARNING LIGHT IS ON WITH WARNING MESSAGES DISPLAYED ON COMBINATION METER SERVICE INFORMATION The AEB system is designed to turn itself OFF during driving conditions (e.g. rain, snow, fog, etc.) that obstruct its sens…
  • NISSAN ALTIMA (2016, 2015), bulletin 10192015: SERVICE INFORMATION FOR DTCS C1A12 AND C1A16 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.

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.