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Manufacturer communication · Service bulletin

Chrysler bulletin 08-209-24

What it says"Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more… NHTSA’s full summary ↓

Chrysler filed this with NHTSA as a service bulletin dated Sep 26, 2024, received Oct 1, 2024, about the electrical system. It names 1 model year (2024). 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 communication

"Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0A78 - Drive Motor A Inverter Performance. ● P0A79 - Drive Motor B Inverter Performance. Customers may also experience the following: ● ""Vehicle is shutting down in two minutes"" message displayed in the Instrument Panel Cluster (IPC). NOTE: The vehicle can be restarted with the next ignition/key cycle from Off and then back to Start. This bulletin involves reprogramming the HCP and AHCP also known as Power Inverter Module (PIM), with the latest available software. "

Trouble codes it names: P0A78 P0A79

Kind Service bulletin Manufacturer date Sep 26, 2024 Received by NHTSA Oct 1, 2024 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
08-209-24Service bulletinSep 26, 202411008207PDF, 136 KB

What the document itself lists

Labour operations and the time the manufacturer allows

OperationDescriptionTime
18-19-86-AYProcessor, Hybrid Control (HCP/AHCP) - Inspect s/w Level0.2 hrs
18-19-86-AZProcessor, Hybrid Control (HCP/AHCP) - Inspect and Reprogram0.3 hrs

Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Chrysler’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.

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.

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 them

A 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 database

Owners of the 1 model year this bulletin names have filed 69 complaints with NHTSA since 2015. 20 of them name Electrical System — 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.

As prior reported I am the owner of a 2024 Chrysler Pacifica that has a known safety defect in the rear sliding doors that is impossible to disable. This issue also cases parasitic draw strain on the battery that can completely disable the vehicle.

2024 Chrysler Pacifica · Electrical System · filed with NHTSA Feb 3, 2026

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 electrical system

Source: same model, same component group

159 other manufacturer communications filed against the Chrysler Pacifica under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Chrysler list.

NumberKindDatedNHTSA’s summary
08-342-26Service bulletinSep 25, 2026Flash: Power Sliding Door Module (PSDM) System Updates Customers must comment on one or more of the following: SYMPTOM: ● The power sliding…
08-188-26Service bulletinSep 25, 2026Flash: Power Sliding Door Module (PSDM) System Updates Customers must comment on one or more of the following: SYMPTOM: ● The power sliding…
08-338-26Service bulletinSep 19, 2026Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl…
08-337-26Service bulletinSep 19, 2026Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl…
08-336-26Service bulletinSep 19, 2026Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl…
08-335-26Service bulletinSep 19, 2026Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl…
08-334-26Service bulletinSep 19, 2026Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl…
9100900Service bulletinSep 8, 2026Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Chrysler, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Chrysler 08-209-24 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 08-209-24 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.

Which vehicles does 08-209-24 cover?

The manufacturer filed it against 1 model year: 2024 Chrysler Pacifica. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.