Jeep bulletin S2521000001
What it saysClutch Overheat, And/Or Service Transmission Illuminated. NHTSA’s full summary ↓
Jeep filed this with NHTSA as a service bulletin dated Feb 8, 2025, received Feb 11, 2025, about the power train. It names 5 model years (2020–2024). 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 communicationClutch Overheat, And/Or Service Transmission Illuminated. Diagnostic Trouble Code (DTC) P08A6 – Gear Lever Position Sensor System – Multiple Sensor Correlation, Set Only In 4Low.
Trouble codes it names: P08A6
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| S2521000001 | Service bulletin | Feb 8, 2025 | 11014094 | PDF, 147 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 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 5 model years this bulletin names have filed 974 complaints with NHTSA since 2015. 155 of them name 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 2020 Jeep Gladiator Pickup, the 19 owners who gave an odometer reading for Power Train reported it at a median of 14,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I have an open recall for my jeep. Have been advised of the issue in April. It is now June and there is still no parts/fix identified for the hazard. In this case the clutch of the vehicle can cause a fire- which to mean seems to be a significant breach of safety. The issue can appear with or without warning.
2022 Jeep Gladiator · Power Train · filed with NHTSA Jun 2, 2023
The contact owns a 2020 Jeep Gladiator. When the contact attempted to engage the select speed control, the vehicle made a metal to metal grinding noise coming from the front driver's side. The contact stated that the failure occurred twice. The vehicle was not taken to the dealer for diagnostic testing.
2020 Jeep Gladiator Pickup · Power Train · filed with NHTSA Nov 19, 2019
The contact owns a 2023 Jeep Gladiator. The contact stated that the vehicle was repaired under an unknown recall by the previous owner; however, the check engine warning light illuminated. The contact examined the vehicle and became aware of some loosened fasteners.
2023 Jeep Gladiator · Power Train · filed with NHTSA Apr 30, 2024
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 power train
Source: same model, same component group31 other manufacturer communications filed against these Jeep models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| S2621000003 | Service bulletin | Mar 9, 2026 | The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8… |
| S2603000001 | Service bulletin | Feb 25, 2026 | A suspected leak may be noticed on the front or rear axle pinion seal. |
| 9100749 Rev 1 | Service bulletin | Jan 7, 2026 | axle seal We have observed that some JL/JT rear axle shafts are leaking oil. Replace axle shaft and seal together. Do not replace seal only.… |
| S1721000016 | Service bulletin | Dec 19, 2025 | Service 4wd Light On, AWD System Service Required Message Illuminated. Diagnostic Trouble Code (DTC) C14A7-97 PTU Motor Component Or System… |
| 18-029-25 | Service bulletin | Oct 25, 2025 | NOTE: Not applicable to vehicles built for the US Market. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malf… |
| 18-087-25 | Service bulletin | Oct 1, 2025 | Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus… |
| 9100627 | Service bulletin | Jul 14, 2025 | To inform dealers about the 850RE valve body PN: R8348504A connector: the original 16-pin connector included six pins that were not used in… |
| 21-009-25 REV. B | Service bulletin | Jul 4, 2025 | "850RE D Clutch Repair **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have at least 11,26… |
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 S2521000001 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 S2521000001 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 S2521000001 cover?
The manufacturer filed it against 5 model years: 2024 Jeep Gladiator, 2023 Jeep Gladiator, 2022 Jeep Gladiator, 2021 Jeep Gladiator, 2020 Jeep Gladiator Pickup. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.