P0299 on Cadillac vehicles The turbocharger or supercharger is not making the boost the computer asked for
P0299 is named on 18 Cadillac model years (2016–2023): 34 manufacturer filings and 0 owner reports in NHTSA’s files, across XT4, CT4, CT5, CT6, XT5 and 1 more.
Which Cadillac model years name P0299
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2019 Cadillac XT4 | Engine | 5 | — |
| 2022 Cadillac CT4 | Equipment | 2 | — |
| 2022 Cadillac CT5 | Equipment | 2 | — |
| 2022 Cadillac XT4 | Equipment | 2 | — |
| 2022 Cadillac XT5 | Equipment | 2 | — |
| 2022 Cadillac XT6 | Equipment | 2 | — |
| 2021 Cadillac CT4 | Equipment | 2 | — |
| 2021 Cadillac CT5 | Equipment | 2 | — |
| 2021 Cadillac XT4 | Equipment | 2 | — |
| 2021 Cadillac XT5 | Equipment | 2 | — |
| 2021 Cadillac XT6 | Equipment | 2 | — |
| 2018 Cadillac CT6 | Power Train | 2 | — |
| 2016 Cadillac CT6 | Power Train | 2 | — |
| 2023 Cadillac CT4 | Engine | 1 | — |
| 2023 Cadillac CT5 | Engine | 1 | — |
| 2023 Cadillac XT4 | Engine | 1 | — |
| 2023 Cadillac XT5 | Engine | 1 | — |
| 2023 Cadillac XT6 | 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 P0299
Source: NHTSA manufacturer communicationsBulletins and campaigns Cadillac filed with NHTSA whose summary names P0299. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIE0503 Service bulletin2019-02-04 · Engine And Engine Cooling
- This engineering informational bulletin is requesting information from the field on reduced engine power, DTC P0299 set.
- PIE0503A Service bulletin2019-02-20 · Engine And Engine Cooling
- This engineering information PI ends the need for information from the field on reduced engine power, DTC P0299 set.
- PIE0503B Service bulletin2019-04-02 · Engine
- This engineering information PI ends the need for information from the field on reduced engine power, DTC P0299 set.
- PIP5889 Service bulletin2022-11-18 · Equipment — Other — Owners/Service/Other Manual
- This Preliminary information communicates the possibility of dtc p0299 due to a stuck open Charge Air Bypass Valve
- PIP5889A Service bulletin2023-01-06 · Engine And Engine Cooling
- This Preliminary information communicates the possibility of dtc p0299 due to a stuck open Charge Air Bypass Valve
- 17408 (Bulletin Service bulletin2017-11-03 · Power Train
- 17408 - Service Update - Potential turbo turbine wheel failure/MIL illuminated with DTC P0299 or P16E7. Dealers are to reprogram ECM with a new calibration.
- 17408 Service bulletin2017-11-01 · Engine And Engine Cooling — Engine — Gasoline — Turbo/Supercharger
- Potential turbo turbine wheel failure/MIL illuminated with DTC P0299 or P16E7. Correction Reprogram ECM with a new calibration.
What P0299 means
Source: SAE J2012 / OBD-IIThe turbocharger or supercharger is not making the boost the computer asked for.
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 P0299 a known problem on Cadillac vehicles?
It is a documented one: NHTSA's files hold 34 manufacturer filings and 0 owner reports naming P0299 on 18 Cadillac model years (2016–2023). 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 P0299 appear on most?
2019 XT4 (5 documents), 2022 CT4 (2 documents), 2021 CT4 (2 documents).
Does P0299 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.