Chrysler bulletin 0500323
What it saysRear Brake Knocking Noise Customer may experience a knocking noise from rear of vehicle when braking while driving in the forward direction. NHTSA’s full summary ↓
Chrysler filed this with NHTSA as a service bulletin dated May 9, 2023, received Jul 31, 2023, about the service brakes. 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 communicationRear Brake Knocking Noise Customer may experience a knocking noise from rear of vehicle when braking while driving in the forward direction. This bulletin involves test driving and if necessary replacing the rear brake rotors and fasteners.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 0500323 | Service bulletin | May 9, 2023 | 10239931 | not found |
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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A weekly email, sent only in a week when Chrysler 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 193 complaints with NHTSA since 2015.
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 service brakes
Source: same model, same component group8 other manufacturer communications filed against the Chrysler Pacifica under the same component group (service brakes), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 9100895 | Service bulletin | Sep 2, 2026 | ACTUATOR Park Brake Do NOT replace actuator before checking for latest ABS software referencing TSB 08-010-26 and TSB 08-066-26. This update… |
| 03D Campaign | Other | Feb 25, 2026 | Fleet Campaign Parts Ordering Process (03D) |
| 08-043-26 | Service bulletin | Feb 19, 2026 | Flash: Anti-Lock Brakes (ABS) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM… |
| 08-010-26 REV. A | Service bulletin | Jan 23, 2026 | Flash: Anti-Lock Brakes (ABS) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit… |
| S2505000005 | Service bulletin | Jul 16, 2025 | Electric Park Brake (EPB) Applied When Parked But Will Not Release On Next Drive. |
| S2523000041 | Service bulletin | May 19, 2025 | Vehicle Will Not Shift From Park. Antilock Brake System (ABS) Light On In Cluster. U0121, U1110, U120C Diagnostic Trouble Codes (DTCs) Set.… |
| S2408000062 | Service bulletin | Jun 23, 2024 | Anti-Lock Brake System (ABS) Lamp on, 4WD/AWD Service Lamp on or Service System Message |
| 9100187 | Service bulletin | Jul 17, 2023 | Brake Vacuum Pump For DTC Code P258B - ELECTRONIC VACUUM PUMP PERFORMANCE. Due to brake vacuum pumps returned with trouble not found, pleas… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chrysler, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Chrysler 0500323 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 0500323 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 0500323 cover?
The manufacturer filed it against 1 model year: 2023 Chrysler Pacifica. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.