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Manufacturer communication · Service bulletin

Jeep bulletin 08-051-24 REV. A

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 ↓

Jeep filed this with NHTSA as a service bulletin dated Jun 8, 2024, received Jun 7, 2024, about the electrical system — 2 documents under this number: 08-051-24 REV. B and 1 more. 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
Built on or before 26 Mar 2024 “Built on or before March 26, 2024”

What it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.

"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):** ● P06E4 - Control Module Wake-up Circuit Performance. ● B12B4 - Charge Status Indicator Module Internal. ● P061B - Internal Control Module Torque Calculation Performance. ● P0810 - Clutch Position Control Error. ● P2885 - Engine Disconnect Clutch Engagement Fault. **Customers may also experience the following: ● Transmission torque calculation issues.** This bulletin involves reprogramming the Powertrain Control Module (PCM), Transmission Control Module (TCM) and the AHCP also known as Power Inverter Module (PIM), with the latest available software."

Trouble codes it names: B12B4 P061B P06E4

Kind Service bulletin Manufacturer date Jun 8, 2024 Received by NHTSA Jun 7, 2024 Components Electrical System, Power Train First dated May 9, 2024

Documents filed under this number

DocumentKindDatedNHTSA idAt NHTSA
08-051-24 REV. BService bulletinJun 8, 202411001570PDF, 136 KB
08-051-24 REV. AService bulletinMay 9, 202411001220PDF, 136 KB

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 945 complaints with NHTSA since 2015. 753 of them name Electrical System, Power Train — 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.

On the 2024 Jeep Wrangler, the 64 owners who gave an odometer reading for Electrical System reported it at a median of 15,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.

The contact owns a 2024 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 24V652000 (Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.

2024 Jeep Wrangler · Electrical System · filed with NHTSA Feb 7, 2025

The contact owns a 2024 Jeep Wrangler. The contact stated that the manual transmission failed to operate as designed, and the vehicle intermittently hesitated while shifting gear. The contact stated there was no warning light illuminated.

2024 Jeep Wrangler · Power Train · filed with NHTSA Jan 2, 2025

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

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

NumberKindDatedNHTSA’s summary
114749Service bulletinSep 23, 2026CHARGER - BATTERY
OTHERDOC_177OtherSep 8, 2026Radio Over The Air Update to U43.17 R1H Software Version (FOTA) Customers may experience one or more of the following:- Navigation Stability…
9100900Service bulletinSep 8, 2026Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
08-298-26Service bulletinAug 8, 2026Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● **A blank electronic vehicle…
113929Warranty extensionAug 6, 2026EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehi…
ID-26-37Warranty extensionJul 31, 2026ID-26-37 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
D-26-17Warranty extensionJul 31, 2026D-26-17 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
9100872Service bulletinJul 27, 2026Display Exchange part has been superseded. Order the latest Z part number: Z8607669AC --> Z8791155AA (Active Exchange Part) Z8607669AD --> Z…

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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Jeep 08-051-24 REV. A 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 08-051-24 REV. A 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 08-051-24 REV. A cover?

The manufacturer filed it against 1 model year: 2024 Jeep Wrangler. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built on or before 26 Mar 2024 — the build date is on the certification label in the driver’s door jamb.