Jeep bulletin 0901623
What it saysIncorrect Coolant Mix (Low Temp System) Rising temperature gauge with dash warning light and possible engine overheating cluster message. NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Jul 28, 2023, received Sep 25, 2023, about the engine. It names 1 model year (2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationIncorrect Coolant Mix (Low Temp System) Rising temperature gauge with dash warning light and possible engine overheating cluster message. This bulletin involves draining the low temp coolant system and filling with new coolant.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 0901623 | Service bulletin | Jul 28, 2023 | 10242834 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 49 complaints with NHTSA since 2015. 7 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
My 23 Jeep Compass engine light came on and it started running rough. Dealer says part of the exhaust valve came off and damaged the piston. Now it needs a new motor. I just purchased it in April 2023. It is now 12/12/23 and I took it to the dealer 11/11/23. This potentially could have happened while I was driving.
2023 Jeep Compass · Engine · filed with NHTSA Dec 12, 2023 · ODI 11559730
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group51 other manufacturer communications filed against the Jeep Compass under the same component group (engine), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 07-008-26 | Service bulletin | Oct 22, 2026 | Not applicable to vehicles built for US market. Coolant Leak From Obstructed Reservoir Duct Customers may experience one or more of the foll… |
| 09-026-26 | Service bulletin | Oct 16, 2026 | Not applicable to vehicles built for US market. Low Oil Pressure Customers may experience a Malfunction Indicator Lamp (MIL) illumination. U… |
| 18-081-26 | Service bulletin | Oct 8, 2026 | Not applicable to vehicles built for US market. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indica… |
| S2609000011 | Service bulletin | Sep 11, 2026 | MIL-On and/or Engine Oil Leak |
| 09-010-26 | Service bulletin | Sep 5, 2026 | Not applicable to vehicles built for US market. Oil Leak Through The Rear Crankshaft Oil Seal (Flywheel Side) Customers may comment on the f… |
| 09-022-26 | Service bulletin | Sep 1, 2026 | Not applicable to vehicles built for US market. Right Engine Insulator Noise **Customers may comment on the following:** SYMPTOM: ● Metallic… |
| 9100363 Rev 3 | Service bulletin | Aug 26, 2026 | Turbocharger Kit Please note many parts of the Turbo Assembly can be serviced separately and complete turbo replacement may not be necessary… |
| 09-021-26 | Service bulletin | Aug 26, 2026 | Not applicable to vehicles built for US market. Noisy Timing Chain Tensioner Customers may experience the following: SYMPTOM: ● A metallic k… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep 0901623 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 0901623 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Stellantis warranty extension on file lists the ones Stellantis has filed.
Which vehicles does 0901623 cover?
The manufacturer filed it against 1 model year: 2023 Jeep Compass. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.