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Diagnostic trouble code · Cadillac

P0747 on Cadillac vehicles

P0747 is named on 26 Cadillac model years (2017–2024): 118 manufacturer filings and 4 owner reports in NHTSA’s files, across Escalade, XT4, CT6, CT4, CT5 and 3 more.

Powertrain 26 model years 118 manufacturer filings 4 owner reports

Which Cadillac model years name P0747

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2022 Cadillac EscaladePower Train12—
2021 Cadillac EscaladePower Train10—
2019 Cadillac XT4Power Train8—
2023 Cadillac EscaladePower Train61
2020 Cadillac XT4Power Train7—
2019 Cadillac CT6Power Train52
2024 Cadillac XT4Power Train5—
2024 Cadillac XT5Power Train5—
2024 Cadillac XT6Power Train5—
2021 Cadillac CT4Power Train5—
2021 Cadillac CT5Power Train41
2020 Cadillac CT4Power Train5—
2020 Cadillac CT6Power Train5—
2020 Cadillac XT5Power Train5—
2020 Cadillac XT6Power Train5—
2021 Cadillac XT4Exterior Lighting4—
2020 Cadillac CT5Power Train4—
2023 Cadillac CT4Power Train3—
2023 Cadillac CT5Power Train3—
2024 Cadillac EscaladePower Train2—
2021 Cadillac XT5Power Train2—
2021 Cadillac XT6Power Train2—
2017 Cadillac ATSElectrical System2—
2017 Cadillac CT6Electrical System2—
2024 Cadillac CT4Power Train1—
2024 Cadillac CT5Power Train1—

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.

Power Train 91 Not specified 12 Electrical System 5 Wheels 4
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What Cadillac owners said

Source: NHTSA complaint database

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

They have denied coverage solely on the grounds that electronic fault code P0747 has not yet been registered by the computer, despite total mechanical failure of the component and a severe safety risk to the vehicle occupants
2021 Cadillac CT5 Sep 24, 2026 NHTSA owner report
I contacted OnStar, which reported transmission control module-related diagnostic codes P0747 and P0700 and indicated reduced power/transmission malfunction
2023 Cadillac Escalade Aug 31, 2026 NHTSA owner report

Cadillac filings that name P0747

Source: NHTSA manufacturer communications

Bulletins and campaigns Cadillac filed with NHTSA whose summary names P0747. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P0747 means

Source: SAE J2012 / OBD-II

P0747 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 Cadillac and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is P0747 a known problem on Cadillac vehicles?

It is a documented one: NHTSA's files hold 118 manufacturer filings and 4 owner reports naming P0747 on 26 Cadillac model years (2017–2024). 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 Cadillac models does P0747 appear on most?

2022 Escalade (12 documents), 2021 Escalade (10 documents), 2019 XT4 (8 documents).

Does P0747 on a Cadillac 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.