U2050 on Mazda vehicles

U2050 is named on 5 Mazda model years (2019–2021): 25 manufacturer filings and 0 owner reports in NHTSA’s files, across Mazda3, CX-30.

Network 5 model years 25 manufacturer filings

Which Mazda model years name U2050

Source: NHTSA manufacturer communications and complaints

Model year	Filed under	Bulletins	Owner reports
2019 Mazda Mazda3	Electrical System	13	—
2020 Mazda CX-30	Electrical System	5	—
2020 Mazda Mazda3	Equipment Adaptive/Mobility	5	—
2021 Mazda CX-30	Engine	1	—
2021 Mazda Mazda3	Equipment Adaptive/Mobility	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.

Electrical System 9 Equipment Adaptive/Mobility 8 Equipment 4 Engine 2

Mazda filings that name U2050

Source: NHTSA manufacturer communications

Bulletins and campaigns Mazda filed with NHTSA whose summary names U2050. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

SA-055-19 Service bulletin
2019-12-10 · Equipment Adaptive/Mobility
Some vehicles may store DTC U2050:55 (Activation of remote control not implemented) after a BCM software update. Follow the repair procedure when this issue occurs.
SA-003-20 Service bulletin
2020-01-09 · Electrical System
DTC U2050:55 STORED AFTER REPLACING OR REPROGRAMMING BCM:When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver.
SA-003-20a Service bulletin
2020-02-11 · Equipment
When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver. This is caused by a communication error between the telematics communication unit (TCU) and BCM when the control software in them are not
SA-003-20b Service bulletin
2020-02-28 · Electrical System
When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver. This is caused by a communication error between the telematics communication unit (TCU) and BCM when the control software in them are not
SA-003-20c Service bulletin
2020-03-23 · Electrical System
When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver. This is caused by a communication error between the telematics communication unit (TCU) and BCM when the control software in them are not
SA-003-20d Service bulletin
2020-09-29 · Equipment Adaptive/Mobility
When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver. This is caused by a communication error between the telematics communication unit (TCU) and BCM when the control software in them are not
SA-038-21 Service bulletin
2021-05-24 · Engine And Engine Cooling
When the body control module (BCM) has been replaced or reprogrammed and the software is updated to the file names shown below, DTC U2050:55-BCM (Activation of remote control not implemented) may be stored in memory without any warning indication for the driver.

What U2050 means

Source: SAE J2012 / OBD-II

U2050 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.

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.

From here

Get a model's new bulletins by email See what owners reported Look up a bulletin by its number Watch a VIN for new recalls

Common questions

Source: NHTSA files and the OBD-II standard

Is U2050 a known problem on Mazda vehicles?

It is a documented one: NHTSA's files hold 25 manufacturer filings and 0 owner reports naming U2050 on 5 Mazda model years (2019–2021). 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 U2050 appear on most?

2019 Mazda3 (13 documents), 2020 CX-30 (5 documents), 2020 Mazda3 (5 documents).

Does U2050 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.