Porsche bulletin No. 110-25
What it saysTechnical information for Error Message "Driving Light Control Defective, Service Necessary" in the Instrument Cluster / Fault Memory Entries for Headlight Adjustment in the Headlight Control Unit NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Jan 23, 2026, received Feb 6, 2026, about the visibility/wiper — 2 documents under this number. It names 3 model years (2024–2026). 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 communicationTechnical information for Error Message "Driving Light Control Defective, Service Necessary" in the Instrument Cluster / Fault Memory Entries for Headlight Adjustment in the Headlight Control Unit
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 110-25 | Service bulletin | Jan 23, 2026 | 11028591 | PDF, 87 KB |
| No. 110-25 | Service bulletin | Jan 13, 2026 | 11028504 | PDF, 184 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 3 model years this bulletin names have filed 20 complaints with NHTSA since 2015. 5 of them name Electrical System, Visibility/Wiper — 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.
I was driving home in my 2024 Porsche Macan 4 EV, at about 65 miles per hour on a divided highway. I had my climate control set to 75 degrees on both the driver and passenger side of the vehicle. I believe that the air conditioning was set to off. I also had the drivers seat heated at the max setting. I was alone in my vehicle.
2024 Porsche Macan · Visibility/Wiper · filed with NHTSA Oct 28, 2025 · ODI 11696217
I was driving on the highway at 60mph on a 4 month old 2025 Porsche Macan Ev 4S. I turned off the AC for both driver and passenger. I suddenly started seeing increasingly larger clouds of black smoke coming out of the passenger side of the cabin, and a clear and increasing smell of something burning.
2025 Porsche Macan · Electrical System · filed with NHTSA Oct 10, 2025 · ODI 11692623
The left usb-c port does not work and the rearview camera image may not display when the vehicle is placed in reverse. As such, the vehicle fails to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
2025 Porsche Macan · Electrical System · filed with NHTSA Aug 27, 2026 · ODI 11759899
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 visibility/wiper
Source: same model, same component group10 other manufacturer communications filed against the Porsche Macan under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| No. 34-26 | Service bulletin | Sep 29, 2026 | Manufacturer's Certificate for Approval: Wheels and Tires. Note that this bulletin covers MY25+ 911 GT3, GT3 Touring, and GT3 S/C |
| No. 34-26-1 | Service bulletin | Aug 4, 2026 | Technical Information for Windshield Water Ingress in the Area of the Front Overhead Console |
| No. D765 | Service bulletin | Feb 17, 2026 | Parts information for parts withdrawal involving the Window regulator motor. The part numbers affected are PAB959801 and PAB959802. The vehi… |
| No. D753 | Service bulletin | Jan 21, 2026 | Parts information for Parts Withdrawal - LED Headlight. Vehicles affected are cars that use the part numbers in the attached PDF. |
| No. 55-24-1 | Service bulletin | Aug 26, 2025 | Technical information for the front window pane reversed. troubleshooting - closes and/or opens incorrectly. |
| No. 114-16 | Service bulletin | Jul 24, 2025 | Technical information for Assessment of Extent of Fogging on Lighting Components |
| WRU9 | Service campaign | Dec 11, 2024 | Porsche intranet posting with information on WRU9 Workshop campaign – Re-coding front camera |
| No. 8-24 | Service bulletin | Nov 27, 2024 | Installation and conversion instructions for the Porsche front and rear camera with QK3 reinstallation. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Porsche, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Porsche No. 110-25 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 No. 110-25 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 Porsche warranty extension on file lists the ones Porsche has filed.
Which vehicles does No. 110-25 cover?
The manufacturer filed it against 3 model years: 2026 Porsche Macan, 2025 Porsche Macan, 2024 Porsche Macan. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.