U05B2 code meaning
Invalid Data Received From Comfort and Convenience Display A
What U05B2 means
Stellantis calls its touch screens for climate, seat and similar comfort settings Comfort and Convenience Display Modules (CCDM); the Jeep Grand Wagoneer has one up front and a second one for rear passengers. U05B2 is logged when a receiver gets traffic from display A whose content is implausible. Which of the screens carries letter A is not published. Two field cases show what typically goes wrong: phantom touches that alter fan speed on their own, cured by a front or rear display with newer firmware (STAR S228A000013 Rev. A), and, on the 2025 Wagoneer S, massage graphics offered for seats without massage, fixed with a later part number and a proxi alignment (S2508000061). No manufacturer cites U05B2 itself; U02B1 is the lost-communication partner.
U05B2 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U05B2
- Climate or seat settings change without input
- Display shows functions the vehicle does not have
- Comfort controls on the screen respond late or not at all
Common causes of U05B2
- Most likelyDisplay firmware with known faults, newer part number available
- PossibleDisplay configuration not matching vehicle equipment, proxi alignment missing
- PossibleTouch panel or display electronics defective
- Less likelyLoose or corroded connector at the display
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Comfort display a
What each part of U05B2 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| B2 | The exact fault in that area. |
What to do next
- Note U05B2 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 U05B2
What does U05B2 mean?
U05B2 means "Invalid Data Received From Comfort and Convenience Display A". Stellantis calls its touch screens for climate, seat and similar comfort settings Comfort and Convenience Display Modules (CCDM); the Jeep Grand Wagoneer has one up front and a second one for rear passengers. It is a generic code, so it means the same on every make.
Is it safe to drive with U05B2?
U05B2 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U05B2 fail an emissions test?
U05B2 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 U05B2 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. This is a job for a workshop.
Will U05B2 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.