P026D on Jeep vehicles
P026D is named on 5 Jeep model years (2016–2023): 5 manufacturer filings and 0 owner reports in NHTSA’s files, across Gladiator, Grand Cherokee.
Which Jeep model years name P026D
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2023 Jeep Gladiator | Fuel/Propulsion System | 1 | — |
| 2019 Jeep Grand Cherokee | Electrical System | 1 | — |
| 2018 Jeep Grand Cherokee | Electrical System | 1 | — |
| 2017 Jeep Grand Cherokee | Electrical System | 1 | — |
| 2016 Jeep Grand Cherokee | 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.
Jeep filings that name P026D
Source: NHTSA manufacturer communicationsBulletins and campaigns Jeep filed with NHTSA whose summary names P026D. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 25-002-24 REV. A Service bulletin2024-07-09 · Fuel/Propulsion System
- "Malfunction Indicator Light (MIL) Due To Possible Faulty O2 Sensor **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P026D - Fuel Injection Quantity Higher Than Expected. ● P0133 - O2 Sensor 1/1 Slow Response.** ● P2297 - O2 Sensor Out of Range During Deceleration Bank 1
- S2218000022 Service bulletin2022-12-09 · Electrical System
- Perceived Low Power/Acceleration Lag, And/Or Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P0299 Turbocharger Underboost And/Or P026D ? Fuel Injection Quantity Higher Than Expected, Set.
What P026D means
Source: SAE J2012 / OBD-IIP026D 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 Jeep 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 P026D a known problem on Jeep vehicles?
It is a documented one: NHTSA's files hold 5 manufacturer filings and 0 owner reports naming P026D on 5 Jeep 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 Jeep models does P026D appear on most?
2023 Gladiator (1 document), 2019 Grand Cherokee (1 document), 2018 Grand Cherokee (1 document).
Does P026D on a Jeep 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.