P129F on Cadillac vehicles
P129F is named on 13 Cadillac model years (2021–2024): 93 manufacturer filings and 0 owner reports in NHTSA’s files, across Escalade, XT4, XT5, XT6.
Which Cadillac model years name P129F
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2023 Cadillac Escalade | Electrical System | 10 | — |
| 2022 Cadillac Escalade | Fuel/Propulsion System | 10 | — |
| 2021 Cadillac Escalade | Fuel/Propulsion System | 9 | — |
| 2023 Cadillac XT4 | Electrical System | 7 | — |
| 2023 Cadillac XT5 | Electrical System | 7 | — |
| 2023 Cadillac XT6 | Electrical System | 7 | — |
| 2022 Cadillac XT4 | Fuel/Propulsion System | 7 | — |
| 2022 Cadillac XT5 | Electrical System | 7 | — |
| 2022 Cadillac XT6 | Electrical System | 7 | — |
| 2021 Cadillac XT4 | Fuel/Propulsion System | 7 | — |
| 2021 Cadillac XT5 | Fuel/Propulsion System | 7 | — |
| 2021 Cadillac XT6 | Fuel/Propulsion System | 7 | — |
| 2024 Cadillac XT4 | Engine | 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.
Cadillac filings that name P129F
Source: NHTSA manufacturer communicationsBulletins and campaigns Cadillac filed with NHTSA whose summary names P129F. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIP5964C Service bulletin2024-03-26 · Electrical System
- This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stored. Technicians are directed to replace the K111FPDCM if any of these conditions can be validated and code P023F or P129F is found.
- 24-NA-139 Service bulletin2024-07-23 · Engine
- This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL Illuminated - DTC P023F and/or P129F Set.
- 24-NA-139 Service bulletin2024-08-10 · Electrical System
- This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL Illuminated - DTC P023F and/or P129F Set.
- 24-NA-139 Service bulletin2024-08-23 · Fuel/Propulsion System
- This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL Illuminated - DTC P023F and/or P129F Set.
- PIP5964D Service bulletin2024-09-06 · Engine
- This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stored. Technicians are directed to replace the K111FPDCM if any of these conditions can be validated and code P023F or P129F is found.
- 24-NA-139 Service bulletin2025-04-12 · Engine
- This service bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Malfunction Indicator Lamp (MIL) Illuminated – DTC P023F or P129F Set.
What P129F means
Source: SAE J2012 / OBD-IIP129F 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. The record above is what Cadillac 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 P129F a known problem on Cadillac vehicles?
It is a documented one: NHTSA's files hold 93 manufacturer filings and 0 owner reports naming P129F on 13 Cadillac model years (2021–2024). 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 P129F appear on most?
2023 Escalade (10 documents), 2022 Escalade (10 documents), 2021 Escalade (9 documents).
Does P129F 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.