AI DamageC1A16 code in owner complaints
Code C1A16 is named in 11 US owner complaints. Models: 5, model years 2017–2019.
There is little data for this code or its meaning is ambiguous, so this page is not indexed.
What the code means
This is a manufacturer-specific code: the meaning depends on the make and sometimes on the year.
How to read C1A16: the letter C means chassis (brakes, ABS, steering, suspension); the second digit 1 marks a manufacturer code whose meaning is set by the make; the last three characters A16 identify the specific fault.
Codes for cameras, radars, blind spot and parking sensors. These units sit in bumpers, grilles and mirrors, so even a light impact shifts them or breaks mounts. After bumper or windshield work they need calibration on a rig, which is a separate and noticeable cost.
Key figures
- Complaints with this code
- 11
- Models
- 5
- Model years
- 2017–2019
Which models and years
Models whose owners name this code (5). Years link to the model year problems page.
Components named together with the code
Component as the owner filed it (one complaint can list several).
Complaints by model year
What to do if an auction car has this code
- Locate cameras and radars in the bumper, grille, windshield and mirrors in the photos and check their mounts.
- Budget ADAS calibration after bumper repair or glass replacement.
What owners report
Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.
They could not duplicate my concern. They found past trouble codes of C1A16 & C1A17 on the vehicle's history. They recommended calibrating the distance sensor and road tests but were not confident this would fix the problem and stated a new sensor may need to be purchased.
I immediately scheduled to get the vehicle into have it looked at. They found codes C1A16-97 & B2724-23 and it was determined that the vehicle had a faulty sonar control unit, which had to be ordered and was eventually replaced on 03/04/20. The aeb system worked for about an hour, then it stopped working again!
Dealership noted it was a forward collision malfunction warning. Dealership stored code C1A16-97. Dealership noted to keep the grill sensor clean of debris and bugs.
Related codes
Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.