U11E9
3 owner reports and 185 manufacturer filings across 43 model years from Chrysler, Dodge, Jeep, Ram.
Where U11E9 shows up
Source: NHTSA manufacturer communications and complaintsShowing the 25 model years where U11E9 appears most; it is on file for 43 in total.
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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U11E9 by make
The same record, one make at a time: the model years, bulletins and owner reports that name U11E9 on that maker’s vehicles.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
Active grill shutters code u11e9 we replaced wire harness and actuator and still getting code that’s causing an engine light .Brought to dealer and they did a recall on the air dam
185 manufacturer filings name U11E9. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names U11E9.
- S2008000132 Service bulletin2023-08-25 · Equipment — Electrical
- Malfunction Indicator Lamp Illuminated. U11E9 Lost Communication With AGS. Ambient Air Temp Incorrectly Displayed. P0070 And P0073 Set for Ambient Air Temp Senso
- S2008000132 Service bulletin2023-04-26 · Electrical System
- Malfunction Indicator Lamp Illuminated. U11E9 Lost Communication With AGS. Ambient Air Temp Incorrectly Displayed. P0070 And P0073 Set For Ambient Air Temp Sensor
- S2008000131 Rev. Service bulletin2022-12-06 · Exterior Lighting
- U11E9 Lost Communication with AGS (Active Grille Shutter), Malfunction Indicator Lamp (MIL) Illuminated
- S2208000151 Service bulletin2022-08-20 · Structure — Body — Bumpers — Active Shutters/Grill
- Check Engine Lamp (CEL) On, Diagnostic Trouble Code (DTC) U11E9 Lost Communication with Active Grill Shutter (AGS)
- S2208000151 Service bulletin2022-08-20 · Structure — Body — Bumpers — Active Shutters/Grill
- Check Engine Lamp (CEL) On, Diagnostic Trouble Code (DTC) U11E9 Lost Communication with Active Grill Shutter (AGS)
- S2208000151 Service bulletin2022-08-20 · Equipment
- Check Engine Lamp (CEL) On, Diagnostic Trouble Code (DTC) U11E9 Lost Communication with Active Grill Shutter (AGS)
What U11E9 means
Source: SAE J2012 / OBD-IIU11E9 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about U11E9
Source: NHTSA files and the OBD-II standardWhy does this page not define U11E9?
Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.
Can I keep driving with U11E9 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.