U026A code meaning
Lost Communication With Image Processing Sensor F
What U026A means
At GM letter F belongs to the frontview camera module (K109, later B174W) on the windshield, which serves forward collision alert, IntelliBeam and the lane departure and lane keeping functions. On 2016–2017 Chevrolet, GMC and Cadillac models such as Malibu, Silverado, Tahoe and Escalade, early camera software made the cluster or body module store a history U026A or U023A while the Service Front Camera message came and went; later software could hang the camera at power-down, keep it warm and drain the battery within 30 days. GM prescribes reprogramming and no new part (16-NA-389, PIT5482A). On 2022–2023 XT5, XT6, Equinox, Acadia and Terrain, camera pins that are pushed back or absent can set U026A, and then the camera is replaced (PIT6046). Lane and collision warnings drop out; no MIL.
U026A at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U026A
- Intermittent Service Front Camera message
- Lane departure warning, lane keep assist, collision alert or automatic high beam inoperative
- Weak battery after standing for days, camera warm with ignition off
Common causes of U026A
- Most likelyCamera software sets false history codes or locks up, cured by reprogramming
- PossiblePushed-in or missing terminals in the camera connector
- PossibleSupply or bus wiring to the windshield camera interrupted
- Less likelyFront camera module internally faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Image processing sensor fVehicle bus wiring
What each part of U026A means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 6A | The exact fault in that area. |
What to do next
- Note U026A and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U026A
What does U026A mean?
U026A means "Lost Communication With Image Processing Sensor F". At GM letter F belongs to the frontview camera module (K109, later B174W) on the windshield, which serves forward collision alert, IntelliBeam and the lane departure and lane keeping functions. It is a generic code, so it means the same on every make.
Is it safe to drive with U026A?
U026A does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U026A fail an emissions test?
U026A is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U026A to fix?
Difficulty: medium. A typical repair takes 0.3 to 3 hours of work. This is a job for a workshop.
Will U026A clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.