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Federal filingsHome›Bulletins›Ram› 08-048-25
Manufacturer communication · Service bulletin

Ram bulletin 08-048-25

What it says"Flash: Air Suspension Control Module (ASCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): C2202-00… NHTSA’s full summary ↓

Ram filed this with NHTSA as a service bulletin dated Feb 20, 2025, received Feb 25, 2025, about the suspension. It names 1 model year (2023). 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: Air Suspension Control Module (ASCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● C2202-00 - Original VIN Mismatch/missing. Customers may also experience: ● ""Service air suspension"" icon light may be on and system may be defaulting to normal ride height. This bulletin involves updating the ASCM with the latest available software."

Kind Service bulletin Manufacturer date Feb 20, 2025 Received by NHTSA Feb 25, 2025 Components Suspension

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
08-048-25Service bulletinFeb 20, 202511014487PDF, 131 KB

What the document itself lists

Labour operation and the time the manufacturer allows

OperationDescriptionTime
18-19-36-9LModule, Air Suspension Control Module (ASCM) Reprogram0.2 hrs

Read by machine from the document NHTSA serves (2 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 17 complaints with NHTSA since 2015.

What component or system failed or malfunctioned, and is it available for inspection upon request? Vehicle was manufactured from the factory with defective frame/left upper coil spring mount causing the coil spring to move off it's locking perch making the coil spring unsecured to the vehicle frame.

2023 Ram 3500 · Suspension · filed with NHTSA Oct 24, 2024 · ODI 11621660

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 suspension

Source: same model, same component group

6 other manufacturer communications filed against the Ram 3500 under the same component group (suspension), newest first.

NumberKindDatedNHTSA’s summary
02-002-25 REV. AService bulletinSep 12, 2025"Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
08-047-25Service bulletinFeb 20, 2025"Flash: Air Suspension Control Module (ASCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehic…
9100270Service bulletinNov 20, 2023AIR SUSPENSION COMPRESSOR ASSE When servicing a 23 model year Ram 2500/3500 - Service Air Suspension Light On (DTC C2202-00)~ Prior to rep…
9100229Service bulletinSep 20, 2023LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and n…
0300423Service bulletinJul 7, 2023Noise When Turning The technician or customer may notice the following: ? Front suspension squeaking noise when turning the steering wheel.…
0200423Service bulletinJun 15, 2023Noise When Turning The technician or customer may notice the following: ? Front suspension squeaking noise when turning the steering wheel.…

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 08-048-25 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 08-048-25 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 08-048-25 cover?

The manufacturer filed it against 1 model year: 2023 Ram 3500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.