Chrysler bulletin 9100745
What it saysB1578 DTC active (Audio Antenna Circuit Resistance Below Threshold) in LB production vehicles. NHTSA’s full summary ↓
Chrysler filed this with NHTSA as a service bulletin dated Dec 15, 2025, received Dec 23, 2025, about the electrical system. It names 8 model years (2022–2025). 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 communicationB1578 DTC active (Audio Antenna Circuit Resistance Below Threshold) in LB production vehicles. Do not diagnose stored or active DTC unless there is a customer facing issue noted. A SOL will be released to give further information.
Trouble codes it names: B1578
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100745 | Service bulletin | Dec 15, 2025 | 11026801 |
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 8 model years this bulletin names have filed 630 complaints with NHTSA since 2015. 179 of them name Electrical System — 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.
The contact rented a 2025 Chrysler Pacifica Hybrid from Budget Car Rental (2176 Main St, Dunedin, FL 34698). The contact stated that while driving approximately 55 MPH, the contact believed that the vehicle was being tracked via Bluetooth throughout a trip from Florida to Kansas City to New York and back to Florida, as the vehicle was…
2025 Chrysler Pacifica · Electrical System · filed with NHTSA Aug 19, 2026
Keys were inside car with only an infant inside and the doors were locked with no other key fob anywhere nearby. There must have been an issue with the car’s safety system to unlock the car in this situation. There was no 3 beeps that would unlock the car. Car was parked in Walmart parking lot in the heat.
2023 Chrysler Pacifica · Electrical System · filed with NHTSA Sep 11, 2024
I just recently used my cruise control for the first time since I purchased my vehicle. After my speed was reached and without me touching anything my van started going crazy so it seemed all on its own it continued to pick up speed and high rates of speed very high rates .
2022 Chrysler Voyager · Electrical System · filed with NHTSA Dec 22, 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 group159 other manufacturer communications filed against these Chrysler models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Chrysler list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 08-342-26 | Service bulletin | Sep 25, 2026 | Flash: Power Sliding Door Module (PSDM) System Updates Customers must comment on one or more of the following: SYMPTOM: ● The power sliding… |
| 08-188-26 | Service bulletin | Sep 25, 2026 | Flash: Power Sliding Door Module (PSDM) System Updates Customers must comment on one or more of the following: SYMPTOM: ● The power sliding… |
| 08-338-26 | Service bulletin | Sep 19, 2026 | Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl… |
| 08-337-26 | Service bulletin | Sep 19, 2026 | Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl… |
| 08-336-26 | Service bulletin | Sep 19, 2026 | Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl… |
| 08-335-26 | Service bulletin | Sep 19, 2026 | Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl… |
| 08-334-26 | Service bulletin | Sep 19, 2026 | Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicl… |
| 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. |
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 9100745 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 9100745 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 9100745 cover?
The manufacturer filed it against 8 model years: 2025 Chrysler Pacifica, 2024 Chrysler Pacifica, 2023 Chrysler Pacifica, 2022 Chrysler Pacifica, 2025 Chrysler Voyager, 2024 Chrysler Voyager and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.