P1098
49 owner reports and 69 manufacturer filings across 20 model years from Buick, Cadillac, Chevrolet, GMC.
Where P1098 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2021 GMC Sierra | Engine | — | 11 | |
| 2021 Chevrolet Silverado | Engine | — | 9 | |
| 2021 Cadillac Escalade | Engine | 6 | 2 | |
| 2020 Cadillac XT4 | Electrical System | 8 | — | Battery → |
| 2020 Chevrolet Silverado | Electrical System | 6 | 1 | Battery → |
| 2020 Cadillac CT4 | Electrical System | 6 | — | Battery → |
| 2020 Cadillac CT5 | Electrical System | 6 | — | Battery → |
| 2019 Cadillac XT4 | Electrical System | 6 | — | Battery → |
| 2020 Cadillac XT5 | Electrical System | 6 | — | Battery → |
| 2020 Chevrolet Blazer | Electrical System | 6 | — | Battery → |
| 2022 Chevrolet Silverado | Power Train | — | 6 | |
| 2020 GMC Acadia | Electrical System | 6 | — | Battery → |
| 2023 GMC Sierra | Engine | — | 6 | |
| 2022 GMC Sierra | Power Train | — | 6 | |
| 2020 Buick Encore | Electrical System | 5 | — | Battery → |
| 2020 GMC Sierra | Electrical System | 5 | — | Battery → |
| 2022 Chevrolet Tahoe | Engine | — | 4 | |
| 2023 Chevrolet Silverado | Engine | — | 3 | |
| 2021 Chevrolet Trailblazer | Electrical System | 3 | — | Battery → |
| 2023 Chevrolet Trailblazer | Engine | — | 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.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
P1098 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P1098 on that maker’s vehicles.
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.
Check engine code P1098, Running Fans Loud cooling fans running at full blast shortly after turning off the engine
On May 24, 2026, while driving on the highway, the vehicle suddenly overheated, displayed fault code P1098, and entered reduced power ("limp mode")
In early February, 2026, a check engine light produced code P1098, engine coolant control valve position sensor performance
Had p1098 code come up on car at 67000 issue coolant control valve assembly went bad
The vehicle was taken to O'Reilly Auto Parts, where DTC: P1098 for the coolant control valve (CCV) assembly was retrieved
69 manufacturer filings name P1098. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P1098.
- 22-NA-082 Service bulletin2022-06-30 · Electrical System
- This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
- 22-NA-082 Service bulletin2022-04-14 · Electrical System
- This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
- PIP5675F Service bulletin2020-10-14 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675E Service bulletin2020-06-25 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675D Service bulletin2020-05-20 · Air Bags
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675B Service bulletin2020-03-16 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
What P1098 means
Source: SAE J2012 / OBD-IIP1098 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. 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 P1098
Source: NHTSA files and the OBD-II standardWhy does this page not define P1098?
Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.
Can I keep driving with P1098 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. 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.