P20E8
1 owner report and 170 manufacturer filings across 43 model years from Cadillac, Chevrolet, GMC, Jeep and others.
Where P20E8 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2018 Jeep Grand Cherokee | Engine And Engine Cooling | 9 | 1 |
| 2017 Jeep Grand Cherokee | Engine And Engine Cooling | 9 | — |
| 2020 Ram 1500 | Fuel System, Gasoline | 9 | — |
| 2019 Ram 1500 | Engine And Engine Cooling | 9 | — |
| 2018 Ram 1500 | Fuel System, Gasoline | 9 | — |
| 2017 Ram 1500 | Engine And Engine Cooling | 9 | — |
| 2021 Jeep Wrangler | Exterior Lighting | 8 | — |
| 2020 Jeep Wrangler | Engine And Engine Cooling | 8 | — |
| 2021 Cadillac Escalade | Engine And Engine Cooling | 6 | — |
| 2023 GMC Yukon | Engine And Engine Cooling | 6 | — |
| 2021 Jeep Gladiator | Electrical System | 6 | — |
| 2019 Jeep Grand Cherokee | Fuel System, Gasoline | 6 | — |
| 2021 Ram 1500 | Power Train | 6 | — |
| 2023 Cadillac Escalade | Electrical System | 4 | — |
| 2024 Chevrolet Suburban | Engine And Engine Cooling | 4 | — |
| 2023 Chevrolet Suburban | Engine And Engine Cooling | 4 | — |
| 2024 GMC Yukon | Engine And Engine Cooling | 4 | — |
| 2026 Ram 2500 | Electrical System | 3 | — |
| 2025 Ram 2500 | Electrical System | 3 | — |
| 2026 Ram 3500 | Electrical System | 3 | — |
| 2025 Ram 3500 | Electrical System | 3 | — |
| 2024 Cadillac Escalade | Engine And Engine Cooling | 2 | — |
| 2024 Chevrolet Silverado 2500HD | Electrical System | 2 | — |
| 2023 Chevrolet Silverado 2500HD | Engine And Engine Cooling | 2 | — |
| 2022 Chevrolet Silverado 2500HD | Electrical System | 2 | — |
| 2021 Chevrolet Silverado 2500HD | Engine And Engine Cooling | 2 | — |
| 2024 Chevrolet Silverado 3500HD | Electrical System | 2 | — |
| 2023 Chevrolet Silverado 3500HD | Electrical System | 2 | — |
| 2022 Chevrolet Silverado 3500HD | Electrical System | 2 | — |
| 2021 Chevrolet Silverado 3500HD | Electrical System | 2 | — |
| 2024 Chevrolet Tahoe | Electrical System | 2 | — |
| 2023 Chevrolet Tahoe | Engine And Engine Cooling | 2 | — |
| 2023 GMC Sierra | Electrical System | 2 | — |
| 2024 GMC Sierra 2500HD | Electrical System | 2 | — |
| 2023 GMC Sierra 2500HD | Engine And Engine Cooling | 2 | — |
| 2022 GMC Sierra 2500HD | Electrical System | 2 | — |
| 2021 GMC Sierra 2500HD | Engine And Engine Cooling | 2 | — |
| 2024 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2023 GMC Sierra 3500HD | Engine And Engine Cooling | 2 | — |
| 2022 GMC Sierra 3500HD | Engine And Engine Cooling | 2 | — |
| 2021 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2020 Jeep Gladiator | Engine And Engine Cooling | 1 | — |
| 2026 Ram 1500 | Electrical System | 1 | — |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
We live in galveston county so when it turned on we took it to autozone for the free code check - the code read was P20E8 and it just said emissions code
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P20E8. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- S2625000001 REV. A2026-03-05 · Electrical System
- Active/Pending Diagnostic Trouble Code (DTC) P208B And/or P20E8 Setting In The Powertrain Control Module (PCM)
- S26250000022026-02-26 · Electrical System
- Malfunction Indicator Lamp (MIL) Illuminated, Diagnostic Trouble Codes (DTCs) P208B, P2D1F, P218F, P202E, P2048, P20E8, Setting In The Powertrain Control Module (PCM)
- S26250000012026-02-17 · Electrical System
- Active/Pending Diagnostic Trouble Code (DTC) P208B And/or P20E8 Setting In The Powertrain Control Module (PCM)
- 24-NA-0202024-02-23 · Engine And Engine Cooling
- This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.
- 24-NA-0202024-02-12 · Engine And Engine Cooling
- This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.
- S19250000082022-05-06 · Electrical System
- Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
What P20E8 means
Source: SAE J2012 / OBD-IIP20E8 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. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P20E8
Source: NHTSA files and the OBD-II standardCan I keep driving with P20E8 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.