Jeep bulletin 18-003-26 REV A
What it saysFlash: Powertrain Control Module (PCM) 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)… NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Apr 16, 2026, received Jan 28, 2026, about the electrical system — 2 documents under this number: 18-003-26 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.
Get the next Jeep Wrangler bulletin by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
Flash: Powertrain Control Module (PCM) 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): ● P08A6 - Gear Lever Position Sensor System - Multiple Sensor Correlation. **(Manual Transmission Only)** ● P0032 - O2 - Sensor 1/1 Heater Circuit High. ● P0038 - O2 - Sensor 1/2 Heater Circuit High. ● P0052 - O2 - Sensor 2/1 Heater Circuit High. ● P0058 - O2 - Sensor 2/2 Heater Circuit High. ● P1129 - Closed Loop Fueling Not Achieved-Banks 2 Upstream. ● P0152 - O2 Sensor 2/1 Circuit High. ● P0158 - O2 Sensor 2/2 Circuit High. ● P2504 - Charging System Output High. ● P0563 - System Voltage High. Customers may also comment on the following: ● "Service Transmission” message on in the Instrument Panel Cluster (IPC) due to clutch slip detection **(Manual Transmission Only). NOTE: Customers might experience wheel spin or slippage and the PCM could interpreted the wheel spin or slippage as slipping the clutch too much and to avoid clutch damage, the customer may see the message in the IPC.** ● During flat tow - Transfer case mis-shift (engine running and clutch pedal up, transmission in gear) **(Manual Transmission Only)**. ● Vehicle runs rough. Other software enhancements include: ● Improvements to address vehicle no starts after replacing the PCM. ● O2 heater crack improvements. ● OBD software changes. statement. Revisions not highlighted by asterisks include removal of a Sale Code. M18 FSAR-TSB-6879 -2- This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 24-109, date of issue August 01, 2024. All applicable RSU VINs have been loaded. To verify this RSU service action is applicable to the vehicle, use VIP or perform a VIN search in DealerCONNECT/Service Library. All repairs are reimbursable within the provisions of warranty. REPAIR SUMMARY: **This bulletin involves inspecting and possibly reprogramming the PCM with th
Trouble codes it names: P0032 P08A6 P0038 P0052 P0058 3 of 5 read from the document itself
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 18-003-26 REV A | Service bulletin | Apr 16, 2026 | 11031448 | not found |
| 18-003-26 | Service bulletin | Jan 24, 2026 | 11027850 |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-06-KA | Module, Powertrain Control (PCM) - Inspect Software Level | 0.2 hrs |
| 18-19-06-KB | Module, Powertrain Control (PCM) - Inspect and Reprogram | 0.3 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 29, 2026. A part number is shown only where it matches Jeep’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 themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Jeep bulletins for the Wrangler
A weekly email, sent only in a week when Jeep files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 945 complaints with NHTSA since 2015. 1,299 of them name Electrical System, Engine, 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
Loud noise and vibration on low rpm Once above 1000 rpm it starts acting normally. Camera get disconnected and blue screen shows up
2024 Jeep Wrangler · Engine · filed with NHTSA Apr 12, 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 group203 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.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 114749 | Service bulletin | Sep 23, 2026 | CHARGER - BATTERY |
| OTHERDOC_177 | Other | Sep 8, 2026 | Radio Over The Air Update to U43.17 R1H Software Version (FOTA) Customers may experience one or more of the following:- Navigation Stability… |
| 9100900 | Service bulletin | Sep 8, 2026 | Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |
| 08-298-26 | Service bulletin | Aug 8, 2026 | Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● **A blank electronic vehicle… |
| 113929 | Warranty extension | Aug 6, 2026 | EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehi… |
| ID-26-37 | Warranty extension | Jul 31, 2026 | ID-26-37 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT) |
| D-26-17 | Warranty extension | Jul 31, 2026 | D-26-17 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT) |
| 9100872 | Service bulletin | Jul 27, 2026 | Display 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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Jeep 18-003-26 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 18-003-26 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 18-003-26 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.