Technical Information - Flashing Function for Auxiliary Headlights Faulty / Fault Memory Entry "C11A401" in Control Unit for Headlight Bulb: Re-Code Control Unit for Headlight Bulb (231/24)
full bulletin at NHTSA ↗2019 Porsche Cayenne lighting problems
moderate 3 complaints filed with NHTSA · avg repair $250 · see lighting across all vehicles →
Among the 6 model years of Porsche Cayenne in our records for lighting problems, this one ranks #3 by owner-complaint volume.
No new NHTSA lighting complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering lighting on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Instructions on advanced technical information for the Cayenne - auxiliary headlight incorrect operation
full bulletin at NHTSA ↗Extended warranty information for the tail lights on MY18 and 19 Cayenne vehicles.
full bulletin at NHTSA ↗Instructions for assessing the condition of vehicle taillights for visual defects.
full bulletin at NHTSA ↗Tail Light Defective Warning in the Instrument Cluster
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
Taillights getting condensation
Matrix headlights do not work, at all. Nighttime driving is dangerous without these headlights.
Seals around both headlights appear to be improperly/weakly sealed. Water intrusion is coming in from light rain or even a car wash causing entire headlight system to shut off until the moisture dries up often while driving. This vehicle has matrix adaptive led headlights and there is no self service bulb to replace since they’re leds. Local Porsche dealer service advisors appear to know this is…
Common questions
How serious is the lighting problem on the 2019 Porsche Cayenne?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
At what mileage does the lighting typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $250 for lighting repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to lighting?
No active recalls currently cover lighting issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.