U1110
1 owner report and 44 manufacturer filings across 21 model years from Chrysler, Mercedes-Benz, Toyota.
Where U1110 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2017 Toyota RAV4 | Equipment | 5 | — | |
| 2017 Toyota Camry | Equipment | 4 | — | |
| 2016 Toyota Camry | Equipment | 4 | — | |
| 2018 Toyota Corolla | Equipment | 3 | — | |
| 2017 Toyota Corolla | Equipment | 3 | — | |
| 2016 Toyota Corolla | Equipment | 3 | — | |
| 2024 Chrysler Pacifica | Electrical System | 2 | — | Battery → |
| 2024 Chrysler Voyager | Electrical System | 2 | — | Battery → |
| 2018 Toyota Prius | Equipment | 2 | — | |
| 2018 Toyota Prius c | Equipment | 2 | — | |
| 2017 Toyota Prius c | Equipment | 2 | — | |
| 2016 Toyota Prius c | Equipment | 2 | — | |
| 2018 Toyota RAV4 | Equipment | 2 | — | |
| 2016 Toyota RAV4 | Equipment | 2 | — | |
| 2017 Mercedes-Benz C-Class | Electrical System | — | 1 | Battery → |
| 2019 Toyota Corolla | Equipment | 1 | — | |
| 2019 Toyota Prius | Electrical System | 1 | — | Battery → |
| 2017 Toyota Prius | Equipment | 1 | — | |
| 2016 Toyota Prius | Equipment Adaptive/Mobility | 1 | — | |
| 2017 Toyota Prius v | Equipment | 1 | — | |
| 2016 Toyota Prius v | Equipment | 1 | — |
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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U1110 by make
The same record, one make at a time: the model years, bulletins and owner reports that name U1110 on that maker’s vehicles.
What it gets filed under
44 manufacturer filings name U1110. 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 U1110.
- 08-043-26 Service bulletin2026-02-05 · Electrical System
- Flash: Anti-Lock Brakes (ABS) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● U0121-00 - Lost Communication With Anti-lock Brake System (ABS) Control Module. ● U1110 - Lost Vehicle Speed Message. ● U120C - Lost Brake Booster Signal. Customers may also comment
- S2523000041 Service bulletin2025-05-19 · Electrical System
- Vehicle Will Not Shift From Park. Antilock Brake System (ABS) Light On In Cluster. U0121, U1110, U120C Diagnostic Trouble Codes (DTCs) Set. Discussion: If a vehicle has a complaint of will not shift from park and the below DTCs are set, follow the steps below prior to making any repairs. U0121-00-LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) U1110-LOST VEHICLE SPEED MESSAGE U120C-LOST BRAKE
- T-SB-0024-20 Service bulletin2020-03-10 · Equipment
- TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0003-19. ?The Introduction and Software Update Information sections have been updated. Service Bulletin No. T-SB-0003-19 is obsolete and any printed versions should be discarded. Some 2016 model year vehicles equipped with Entune? Audio (version UU.11.13), Entune? Audio Plus (version EU.2
- T-SB-0003-19_Rev Service bulletin2019-10-23 · Equipment
- TSB:REVISION NOTICE October 23, 2019 Rev1: ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0234-17. ? The Introduction and Software Update Procedure sections have been updated. Service Bulletin No. T-SB-0234-17 is obsolete and any printed
- T-SB-0003-19 Service bulletin2019-01-04 · Equipment
- TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0234-17. ? The Introduction and Software Update Procedure sections have been updated. Service Bulletin No. T-SB-0234-17 is obsolete and any printed versions should be discarded. Some 2016 model year vehicles equipped with Entune? Audio (version UU.11.13), Entune? Audio Plus (version EU.20.21) o
What U1110 means
Source: SAE J2012 / OBD-IIU1110 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 U1110
Source: NHTSA files and the OBD-II standardWhy does this page not define U1110?
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 U1110 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.