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Diagnostic trouble code · Jeep

P2122 on Jeep vehicles

P2122 is named on 14 Jeep model years (2016–2020): 24 manufacturer filings and 3 owner reports in NHTSA’s files, across Renegade, Cherokee, Compass, Grand Cherokee, Patriot and 1 more.

Powertrain 14 model years 24 manufacturer filings 3 owner reports

Which Jeep model years name P2122

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2017 Jeep RenegadeVehicle Speed Control21
2017 Jeep CherokeeVehicle Speed Control2—
2017 Jeep CompassVehicle Speed Control2—
2017 Jeep Grand CherokeeVehicle Speed Control2—
2017 Jeep PatriotVehicle Speed Control2—
2017 Jeep WranglerVehicle Speed Control2—
2016 Jeep CherokeeVehicle Speed Control2—
2016 Jeep CompassVehicle Speed Control2—
2016 Jeep Grand CherokeeVehicle Speed Control2—
2016 Jeep PatriotVehicle Speed Control2—
2016 Jeep RenegadeVehicle Speed Control2—
2016 Jeep WranglerVehicle Speed Control2—
2020 Jeep RenegadeFuel/Propulsion System—1
2019 Jeep RenegadeElectrical 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.

Vehicle Speed Control 24 Electrical System 2 Fuel/Propulsion System 1
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What Jeep owners said

Source: NHTSA complaint database

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

I was in traffic and my car went into limp mode because of a code P2122 which is the throttle body sensor
2019 Jeep Renegade Dec 5, 2023 NHTSA owner report

Jeep filings that name P2122

Source: NHTSA manufacturer communications

Bulletins and campaigns Jeep filed with NHTSA whose summary names P2122. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P2122 means

Source: SAE J2012 / OBD-II

P2122 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 P2122 a known problem on Jeep vehicles?

It is a documented one: NHTSA's files hold 24 manufacturer filings and 3 owner reports naming P2122 on 14 Jeep model years (2016–2020). 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 P2122 appear on most?

2017 Renegade (3 documents), 2017 Cherokee (2 documents), 2016 Cherokee (2 documents).

Does P2122 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.