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Diagnostic trouble code · Jeep

B22A9 on Jeep vehicles

B22A9 is named on 36 Jeep model years (2020–2026): 54 manufacturer filings and 0 owner reports in NHTSA’s files, across Grand Cherokee, Wagoneer, Wrangler, Cherokee, Compass and 2 more.

Body 36 model years 54 manufacturer filings

Which Jeep model years name B22A9

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2026 Jeep Grand CherokeeElectrical System3—
2025 Jeep Grand CherokeeElectrical System3—
2024 Jeep Grand CherokeeElectrical System3—
2023 Jeep Grand CherokeeElectrical System3—
2022 Jeep Grand CherokeeElectrical System3—
2026 Jeep WagoneerElectrical System2—
2026 Jeep WranglerElectrical System2—
2025 Jeep WagoneerElectrical System2—
2025 Jeep WranglerElectrical System2—
2024 Jeep WagoneerElectrical System2—
2024 Jeep WranglerElectrical System2—
2023 Jeep WranglerElectrical System2—
2022 Jeep WranglerElectrical System2—
2026 Jeep CompassElectrical System1—
2026 Jeep GladiatorElectrical System1—
2026 Jeep Grand WagoneerElectrical System1—
2025 Jeep CompassElectrical System1—
2025 Jeep GladiatorElectrical System1—
2025 Jeep Grand WagoneerElectrical System1—
2024 Jeep CompassElectrical System1—
2024 Jeep GladiatorElectrical System1—
2024 Jeep Grand WagoneerElectrical System1—
2023 Jeep CherokeeElectrical System1—
2023 Jeep CompassElectrical System1—
2023 Jeep GladiatorElectrical System1—
2023 Jeep Grand WagoneerElectrical System1—
2023 Jeep WagoneerElectrical System1—
2022 Jeep CherokeeElectrical System1—
2022 Jeep CompassElectrical System1—
2022 Jeep GladiatorElectrical System1—
2022 Jeep Grand WagoneerElectrical System1—
2022 Jeep WagoneerElectrical System1—
2021 Jeep CherokeeElectrical System1—
2021 Jeep CompassElectrical System1—
2020 Jeep CherokeeElectrical System1—
2020 Jeep CompassElectrical System1—

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.

Electrical System 54
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Jeep filings that name B22A9

Source: NHTSA manufacturer communications

Bulletins and campaigns Jeep filed with NHTSA whose summary names B22A9. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What B22A9 means

Source: SAE J2012 / OBD-II

B22A9 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.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is B22A9 a known problem on Jeep vehicles?

It is a documented one: NHTSA's files hold 54 manufacturer filings and 0 owner reports naming B22A9 on 36 Jeep model years (2020–2026). 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 B22A9 appear on most?

2026 Grand Cherokee (3 documents), 2025 Grand Cherokee (3 documents), 2024 Grand Cherokee (3 documents).

Does B22A9 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.