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Federal filingsHome›Bulletins›Ram› 08-334-25
Manufacturer communication · Service bulletin

Ram bulletin 08-334-25

What it saysUnable To Start Vehicle - Shifter Inoperable 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 ↓

Ram filed this with NHTSA as a service bulletin dated Oct 11, 2025, received Oct 15, 2025, about the power train — 2 documents under this number: 08-334-25 REV. A and 1 more. It names 1 model year (2025). 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

Unable To Start Vehicle - Shifter Inoperable 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): ● B2199-16 - Battery Voltage-circuit Voltage Below Threshold. ● B21DD-84 - System Voltage-signal Below Allowable Range. ● C2129-00 - Battery Voltage. Customers may also comment on one or more of the following: ● Unable to start vehicle. ● Gear shifter spins freely with no PRNDL LED indication on the Automatic Gear Shift Module (AGSM). This bulletin involves replacing the AGSM.

Kind Service bulletin Manufacturer date Oct 11, 2025 Received by NHTSA Oct 15, 2025 Components Power Train, Electrical System First dated Oct 8, 2025

Documents filed under this number

DocumentKindDatedNHTSA idAt NHTSA
08-334-25 REV. AService bulletinOct 11, 202511024303PDF
08-334-25Service bulletinOct 8, 202511024293PDF

What the document itself lists

Parts the bulletin names

Part numberDescriptionQtyFind it
68538331ALShifter Assy Rubber Knob, w/ Engine—eBay Motors →
68538336ALShifter Assy Rubber Knob, 4-Button—eBay Motors →
68538337ALShifter Assy Rubber Knob, 4-Button—eBay Motors →
68538338ALShifter Assy Rubber Knob, 4-Button—eBay Motors →
68538333ALShifter Assy Rubber Knob, 3-Button—eBay Motors →
68538334ALShifter Assy Rubber Knob, 3-Button—eBay Motors →
68538335ALShifter Assy Rubber Knob, 3-Button—eBay Motors →
68538339ALShifter Assy Metal Knob, w/ Engine—eBay Motors →
68538343ALShifter Assy Metal Knob, 4-Button T-Case, w/ Engine Start—eBay Motors →
68538344ALShifter Assy Metal Knob, 4-Button T-Case, w/ Axle Lock—eBay Motors →
68538345ALShifter Assy Metal Knob, 4-Button T-Case, w/ Axle Lock—eBay Motors →
68538303ALShifter Assy Jeweled Knob, 4-Button—eBay Motors →
68538304ALShifter Assy Jeweled Knob, 4-Button—eBay Motors →
68538305ALShifter Assy Jeweled Knob, 4-Button—eBay Motors →

Labour operation and the time the manufacturer allows

OperationDescriptionTime
08-19-77-97Module, Electronic Shift (ESM) - Replace0.4 hrs

Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Ram’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 371 complaints with NHTSA since 2015. 243 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 2025 Ram 1500, the 27 owners who gave an odometer reading for Electrical System reported it at a median of 6,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.

Brand new 2025 ram 1500 is out of alignment at 800 miles. It pulls to the right. On highway, it almost turns itself to the other lane. Major disaster maker

2025 Ram 1500 · Electrical System · filed with NHTSA Feb 7, 2025 · ODI 11641291

In depth: 2025 Ram 1500 electrical problems → · 2025 Ram 1500 transmission and drivetrain problems →

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 group

76 other manufacturer communications filed against the Ram 1500 under the same component group (power train), newest first. The eight newest are listed; the rest are on the Ram list.

NumberKindDatedNHTSA’s summary
18-071-26 REV. BService bulletinOct 6, 2026Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may…
18-075-26Service bulletinOct 3, 2026Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus…
115032Service campaignOct 3, 2026Customer Satisfaction Notification A0D – Electronic Shift Module - Dealer Notification The Electronic Shift Module (ESM) software on about 2…
S2621000004Service bulletinSep 30, 2026The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tec…
21-062-26Service bulletinSep 25, 2026Transmission Rattle Customers may comment on the following: SYMPTOM: ● Rattle noise coming from the transmission. This bulletin involves ins…
08-308-26Service bulletinAug 6, 2026Flash: Electronic Shift Module (ESM) Updates Customers may comment on one or more of the following: SYMPTOM: ● Shifter is unresponsive. ● Un…
21-057-26Service bulletinJul 9, 2026Flash: Transmission Control Module (TCM) Updates Customers may comment on one or more of the following: SYMPTOM: ● Harsh or slipping feeling…
21-056-26Service bulletinJul 9, 2026Flash: Transmission Control Module (TCM) Updates Customers may comment on one or more of the following: SYMPTOM: ● **Harsh or slipping feeli…

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

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

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ram 08-334-25 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 08-334-25 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 08-334-25 cover?

The manufacturer filed it against 1 model year: 2025 Ram 1500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.