The Lemon IndexP1098 is a manufacturer-specific code, so its exact meaning depends on the make. Full P1098 page
24 owner complaints · the #2 code GMC Sierra owners name · 12% of GMC Sierra complaints that name a code (every car: 0.3%)
2021–2023 GMC Sierra · most: 2021 (13), 2023 (6), 2022 (5)
GMC Sierra owners named P1098 in 24 complaints to the U.S. government (NHTSA), most often on the 2021, 2023 and 2022 model years. Complaints are owner reports, not proof of a defect.
GMC Sierra model years that report P1098
Owner complaints naming P1098, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
Symptoms owners describe with P1098
21% of these complaints say the check engine light came on.
- Loses power or goes into limp mode21%5 of 24 complaints
- Overheats12%3 of 24 complaints
Share of the complaints naming P1098 whose text also describes each problem. A complaint can describe more than one.
Recalls on these GMC Sierra years
- Transmission & drivetrain · 2021, 2022 · issued 2026
The transmission control valve may fail and cause the rear wheels to lock up. NHTSA 26V083000 - Engine · 2021, 2022, 2023 · issued 2025
The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure. NHTSA 25V274000 - Transmission & drivetrain · 2021, 2022 · issued 2024
The transmission control valve may fail and cause the rear wheels to lock-up. NHTSA 24V797000
3 recalls for the same systems (engine and powertrain) on the GMC Sierra model years above. A recall for the same system isn't proof it's behind P1098. Recall work is free at any dealer: check a VIN at nhtsa.gov/recalls or with our VIN check.
Keep going
- P1098: meaning, causes and every car that reports it
- GMC Sierra reliability by year
- 2021 GMC Sierra problems and recalls
Other codes GMC Sierra owners report
P1098 on other cars
Chevrolet Silverado (13)
The details
How we count
We read every owner complaint in the NHTSA file whose text names this trouble code, and count the ones filed about this model (matched by the make, model and model year on the complaint). Mileage is what the owner entered on the form.
Parts: a complaint counts for a part when one of the owner's own sentences names that part together with a cause word (failed, bad, diagnosed, caused by, leaking ...) or a repair word (replaced, repaired, new, reprogrammed ...). "Came back" means the same complaint also says the problem returned or the repair didn't fix it. These are counts of what owners wrote, not a diagnosis, and one complaint can name several parts.
Complaints are reports, not proof of a defect, and most owners never file one. Popular models get more complaints, so the counts are not a failure rate. The code meaning is the standard SAE J2012 definition in our own words, or the carmaker's meaning where we verified it for that make.
What P1098 means
P1098 is a manufacturer-specific code: each carmaker decides what it means, so the same code can point to different problems on different brands. We haven't verified its meaning for Gmc yet. A dealer or a scanner with the maker's software can tell you exactly.
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11774225, 11773648, 11766541, 11750814, 11748812, 11746243, 11742401, 11741078, 11740519, 11728316, 11721392, 11718353 and 12 more.
Quick answers
Which GMC Sierra years have the most P1098 complaints?
In complaints to NHTSA, owners of the 2021 (13), 2023 (6), 2022 (5) GMC Sierra named P1098 most (24 complaints in all, 2021–2023). Raw counts, not a failure rate.
Sources: NHTSA owner complaints that name P1098 on the GMC Sierra, counted by The Lemon Index; NHTSA recalls; repair bills owners named. Meanings: SAE J2012 in our own words. Owner reports, not a diagnosis or repair advice for your car.