U3003 on Mazda vehicles
U3003 is named on 9 Mazda model years (2016–2021): 15 manufacturer filings and 2 owner reports in NHTSA’s files, across CX-9, CX-5, Mazda3.
Which Mazda model years name U3003
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 Mazda CX-9 | Structure | 5 | — |
| 2018 Mazda CX-9 | Structure | 2 | — |
| 2018 Mazda Mazda3 | Forward Collision Avoidance | — | 2 |
| 2017 Mazda CX-5 | Electrical System | 2 | — |
| 2017 Mazda CX-9 | Electrical System | 2 | — |
| 2021 Mazda CX-5 | Electrical System | 1 | — |
| 2021 Mazda CX-9 | Electrical System | 1 | — |
| 2020 Mazda CX-9 | Electrical System | 1 | — |
| 2019 Mazda CX-9 | Electrical System | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
What Mazda owners said
Source: NHTSA complaint databaseOwners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.
The contact had taken the vehicle to a non-manufacturer dealer who used a handheld scanner and retrieved the following codes: C1001 Type 97, U3003, and B13D3
Mazda filings that name U3003
Source: NHTSA manufacturer communicationsBulletins and campaigns Mazda filed with NHTSA whose summary names U3003. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- SA297 Service bulletin2016-07-21 · Structure — Body — Hatchback/Liftgate
- 2016 CX-9 TECH TIPS: - REAR SUNSHADE WILL NOT RETRACT - MAINTENANCE MONITOR ENGINE OIL DATA RESET
- SA297 Service bulletin2016-06-28 · Fuel System, Gasoline
- 2016 CX-9 TECH TIPS: - MAINTENANCE MONITOR ENGINE OIL DATA RESET - ENHANCED PDI STEP 1 - DO NOT UPDATE THE MAZDA CONNECT SOFTWARE - SPECIAL ATTENTION ITEMS TO REVIEW DURING PDI - DRIVEABILITY
- 1104M Service bulletin2016-05-27 · Electrical System
- SOME CUSTOMERS MAY COMPLAIN ABOUT AN INOPERATIVE POWER LIFTGATE (PLG). DTC U3003:16 (POWER LIFTGATE (PLG) CONTROL MODULE POWER SUPPLY VOLTAGE LOW INPUT) IS STORED IN MEMORY. THIS MAY BE CAUSED BY LOW BATTERY VOLTAGE.
- MT-006-18 Service bulletin2018-07-03 · Electrical System
- POWER LIFTGATE INOPERATIVE WITH DTC U3003:16: Some customers may complain about an inoperative power liftgate (PLG) with DTC U3003:16 (Power liftgate (PLG) control module power supply voltage low input) is stored in memory. This may be caused by low vehicle battery voltage.
- MT-003-20 Service bulletin2020-08-07 · Electrical System
- Some customers may complain about an inoperative power liftgate (PLG) and the any of the following DTC's stored in memory: ï· U3003:16 (Power liftgate (PLG) control module power supply voltage low input) ï· U3003:17 (Power liftgate (PLG) control module power supply voltage high input). This may be caused by low or high vehicle battery voltage.
What U3003 means
Source: SAE J2012 / OBD-IIU3003 is a manufacturer-specific code: the second character is a 3, 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. The record above is what Mazda and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs U3003 a known problem on Mazda vehicles?
It is a documented one: NHTSA's files hold 15 manufacturer filings and 2 owner reports naming U3003 on 9 Mazda model years (2016–2021). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Mazda models does U3003 appear on most?
2016 CX-9 (5 documents), 2017 CX-5 (2 documents), 2018 CX-9 (2 documents).
Does U3003 on a Mazda mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.