I drive a leased 2024 Porsche Macan that has been serviced exclusively by Porsche of [XXX]. In May 2026, I brought the vehicle in because the engine was revving/racing while I was driving locally at slow to normal speeds. I also reported that the vehicle initiated sudden collision-avoidance braking when no vehicles or obstacles were present. I was told no problem could be found or replicated. On the morning of XXX while driving about 25–30 mph, the engine again began revving loudly and continued even while I was stopped at a traffic light. This was the same issue I had reported in May. At the next light, I shifted into Park and then back into Drive; the revving temporarily subsided. I stopped briefly at a drive-through pharmacy and then drove directly home. As I pulled into my driveway with my foot on the brake, the vehicle suddenly accelerated sharply on its own and struck my home, causing significant damage to the house and vehicle. Smoke came from the front of the vehicle. Because I live in an attached home and my neighbors were inside, I attempted to back the vehicle a few feet away. With my foot on the brake, I shifted into Reverse, and the vehicle again accelerated sharply, traveling backward at high speed into the street. I steered away from a parked car and a brick wall, pulled the emergency brake, and shut off the vehicle. I exited and called 911. Police arrived within minutes, photographed the scene, and arranged for the vehicle to be towed because it was blocking the street. This vehicle has had unexplained problems repeatedly, yet I was told they could not be replicated. No one was physically injured, but this incident could easily have killed or seriously injured me, a pedestrian, another driver, or a child. I live next to a park and school. I believe this vehicle presents a serious safety risk and should not be returned to service without a complete investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11753351 — an unverified report by a vehicle owner.
My 2017 Porsche Macan has a Timing Chain Cover Bolt Failure which has caused leaking oil and may lead to total loss of oil and engine failure. This is a known documented design and manufacturing defect affecting the 3.0L and 3.6L engines. The manufacturers original aluminum bolts for the cover suffer from premature failure leading them to break. Porsche has recognized this widespread defect and problem by issuing a technical service bulletin for this issue. Porsche has not issued a recall to fix this problem. I have contacted a Porsche dealer to address this problem but they refused to make the repair without my paying the cost to repair their defect.
NHTSA complaint #11752140 — an unverified report by a vehicle owner.
While driving on a major highway ([XXX]) at over 60 MPH, we had a complete and catastrophic system wide shut down of our vehicle, culminating in our car grinding to a halt. This entire process elapsed over a 15-20 second period. We barely were able to get our vehicle to the "left" shoulder along the median of the highway where we had to sit for over 75 minutes with oncoming traffic racing past us until 911 arrived to tow us. It was a life-threatening situation where we were virtual "sitting ducks" without any means to remove ourselves from harms way. The car was immovable and unresponsive. We tried to restart the car with the assistance of our Porsche Dealer but nothing worked. We had no choice but to pray for our safety. We have completely documented our experience: photos, videos and phone calls with 911. NOTE: your system is not allowing us to upload any of our photos or videos but we would like to provide these to you directly so please reach out to me to let me know how we can share these with you. When the car malfunctioned, it seemed that every alert in the car's computer system flashed in serial fashion - Engine Control Error, P Button Defective, E Sound Error, Lane Assistance Malfunction, Electrical Parking Brake Error. It should be noted that we have had the car for less than two years and have logged a little over 11,000 miles driven. Ultimately, we were towed by flat bed to the nearest Porsche Dealer in White Plains where the car is parked. We left a message for the service department at the Dealer telling them who we are, what happened and to call us before they begin an inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11745512 — an unverified report by a vehicle owner.
While slowing to a near-complete stop and preparing to shift into Park at a low-speed private property location, the vehicle suddenly and violently accelerated without any driver input. The operator, a [XXX] experienced driver, had no time to react. The vehicle travelled approximately 200-300 meters uncontrolled, narrowly missed a grounds keeper operating a tractor on the paved road, left the paved road, drove over a fallen log and between trees, and stopped autonomously just before hitting a tree directly ahead. The driver did not brake at any point. The vehicle stopped itself. Physical evidence at the scene shows deep tire marks dug into soft ground consistent with autonomous emergency braking activation directed straight toward the tree. Four witnesses were present including a bystander who nearly was struck by the vehicle. A formal safety case has been opened with the manufacturer's corporate office. Federal safety complaint also filed with Transport Canada. A nearly identical sudden unintended acceleration incident involving a 2023 Porsche Macan while parking is already on record with NHTSA. This appears to represent a pattern on the same platform and warrants formal investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11741847 — an unverified report by a vehicle owner.
Vehicle developed a check engine light and camshaft sensor fault at approximately 48,000 miles. Engine began making abnormal ticking noise and later entered reduced power/limp mode condition. Vehicle was initially evaluated by an authorized Porsche dealership, where damage to the camshaft trigger/tone wheel and internal mechanical concerns within the valvetrain were identified through diagnostic evaluation and bore scope inspection. Supporting documentation from the authorized Porsche dealership, including bore scope video and diagnostic findings, has been retained. A Porsche-focused independent repair facility later identified a fractured rocker arm within the valvetrain assembly as the root cause of the failure. The failed rocker arm caused contact damage to the camshaft and related components. Repair facility advised that further movement of the failed component could have resulted in catastrophic engine failure. Failed component has been retained and documented with photographs. Vehicle required major valvetrain and camshaft repair. Concern involves internal engine component failure at relatively low mileage with potential loss of power and severe engine damage.
NHTSA complaint #11737280 — an unverified report by a vehicle owner.
Vehicle keeps entering limp mode when driving. Complete loss of power car cannot move and is left stranded. Vehicle has been at the dealership diagnosed and repaired over 4 times but the problem still remains. Dealer states there is no rat or electrical damage, battery was replaced and software updated but the car keeps losing all power and needs tows constantly.
NHTSA complaint #11724681 — an unverified report by a vehicle owner.
Y shaped plastic Coolant line cracks and leaks do to manufactures poor choice of materials! Resulting in engine overheating, and sever loss of coolant! Spraying entire engine compartment under hood white dried up coolant over spay spots with empty coolant reservoir and no heat. You would think that line would be made from an aluminum as it beads to with stand high heat temperatures from being against and engine.
NHTSA complaint #11698440 — an unverified report by a vehicle owner.
The contact owned a 2023 Porsche Macan. The contact stated that while driving approximately 40 MPH, the vehicle experienced a loss of automotive power and hesitated to restart as intended. No warning light was illuminated. In addition, the contact stated that while driving approximately 70 MPH, there was an abnormal sound coming from under the hood, and the vehicle failed to accelerate as intended while the accelerator pedal was depressed. The contact stated that the failure had progressed over time. The vehicle was taken to a local dealer; however, no failures were identified. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000.
NHTSA complaint #11693265 — an unverified report by a vehicle owner.
Porsche is making use of aluminum fasteners for important engine components. These fasteners are substandard for the service. At 100,000 miles, two of the bolts for the timing chain cover simply broke in half during normal service, resulting in a substantial oil leak and an expensive repair (about $3000). At 120,000 miles, one of the bolts for the valve cover also simply broke in half, resulting in another oil leak and a repair bill of about $1000.
NHTSA complaint #11654627 — an unverified report by a vehicle owner.
Coolant pipe burst or started a sudden leak and lost all the coolant while driving. I had to have the vehicle towed and repaired which costed me $2750. Porsche is aware of the problem but does not have a solution, until someone is killed when the vehicle stalls while driving.
NHTSA complaint #11630066 — an unverified report by a vehicle owner.
OIl leak from "Brocken aluminum bolts" that do not hold up and are failing to hold up from basic car use. A safety recall on this manufacturing parts issue should have been mandatory back in 2015. When this issue started and Macan 2015-2022 all have this issue and are now been replaced with steel bolts. It is costing consumers $2000-$8000 in repairs do the safety issues of bad manufacturing of bolts used . [XXX] Sounds similar to the fiasco with the 958.1 gen Cayenne V8s using aluminum bolts for the Variocam adjusters in the engine which eventually resulted in a NHTSA mandated recall due to the bolt heads sometimes shearing off and causing all sorts of nastiness (my Cayenne Turbo had this recall). Of course the Cayenne's instance of using inappropriate aluminum bolts/fasteners resulted in much more serious consequences \than a just slow oil leak/seepage as is the case as its not been totally documented with the Macan V6s yet , but not good in either case. <sigh> should have recalled on all V6 MACANS also! A partial repair was done by Porsche in Sep 2023 and in [XXX] I have another oil leak from another aluminum bolt breakage . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11609210 — an unverified report by a vehicle owner.
airbag light comes on and off intermittently I am aware there were some problems with the airbag sensor that year and recalls for other models, not my vin, I have called and confirmed there are none for mine. seems to act up more after or while I have a passenger so I suspect (almost positive) this is for the passenger airbag. also when I have a passenger the amber indicator that says airbag on off will randomly switch to off and I'll get the dash light. this makes me think its the airbag weight sensor pad that deteriorates easily that other cars had a recall for but not mine. no water was spilled on the seat before it started acting up the way it has been. as well, the engine motor mounts have a tendency to break fairly easily and fast causing vibrations and possible safety issues.
NHTSA complaint #11577431 — an unverified report by a vehicle owner.
Coolant venting hose leaking. Apparently, a known problem with Porsche design but nothing has been done about it. It cost me $3,500 to get it fixed after the car stopped in the middle of highway and had to get towed to the Porsche Dealership. Someone has to do something about it!
NHTSA complaint #11574518 — an unverified report by a vehicle owner.
The 2017 Porsche Macan S is unsafe to drive on the road as the vehicle goes into jerking mode while driving without any warning, the safety light came on as transmission fault. I took the vehicle to River Oaks Porsche, and they diagnosed the issue as transmission problem common with the Macan brand and the Cayenne brand, I then informed the manufacturer, and I was informed that since the vehicle had not been recalled there was nothing they could do with the defect. Since the dealership acknowledged that the issue was common with these brands, I believed that these vehicles should have been recalled for public safety.
NHTSA complaint #11521025 — an unverified report by a vehicle owner.
I own a 2015 Porsche Macan turbo which I purchased new from the Chattanooga Tennessee Porsche dealer. On Tuesday, October 18 2022 while driving at normal highway speeds the engine coolant pipe failed and dumped all of my coolant onto the engine and roadway. Red warning lights came on and I pulled over and stoped the car it had to be towed to the Porsche dealership where I was subsequently charged almost $2000 for the replacement of the failed engine coolant hose and connected parts. Nine days previous to this total engine failure, I had my car at the dealership for my annual eight year service which was completed in full along with a multi point inspection which failed to identify this dangerous defect.
NHTSA complaint #11491375 — an unverified report by a vehicle owner.
The engine oil started leaking on the timing case over bolts. The current mileage is 20500. This happened right after the regular 40,000 mile maintenance. The dealership said it's out of warranty but on a bit of research the aluminum bolts seem to break easily with a lot of similar cases.
NHTSA complaint #11467288 — an unverified report by a vehicle owner.
On April 26 2021 performed routine oil change and noticed oil leaking from valve cover gasket onto side of engine. Took to Prestige Imports Inc, in Lakewood Colorado April 30th 2021, mileage is 22,851 and dealer told me: "Inspect for engine oil leak, no leak present although a slight wetness is visible at valve cover, no drips present. No repairs necessary per Porsche warranty guidelines." Dealer advised me to drive car hard and return in few weeks for visual inspection. Returned to dealer on 05/19/2021 and dealer looked at car and told me leak was a SWEAT and would not be repaired under warranty. Car purchased 05/22/2021, out of warranty 05/22/2021.
NHTSA complaint #11419063 — an unverified report by a vehicle owner.
I WAS INFORMED AT MY LAST SERVICE THAT I NEED TO HAVE MY PASSENGER AIRBAG SEAT SENSOR REPLACED AND ALSO MY TIMING CHAIN COVER IS LEAKING OIL. I NOTICED ON NHTSA WEBSITE THAT BOTH OF THESE ISSUES ARE DOCUMENTED. THERE WAS A SAFETY RECALL FOR SIMILAR 2016 MACAN'S BUT MY VIN ISN'T LISTED. PART 573 SAFETY RECALL REPORT 17V-133. THERE IS ALSO A MANUFACTURER COMMUNICATION (#D2000.1)RELATING TO THE OIL LEAK. NHTSA ID # 10182254. THESE ARE VERY EXPENSIVE REPAIRS AND UNCLEAR WHY THEY SHOULDN'T BE COVERED BY PORSCHE WHEN THEY ARE DOCUMENTED PROBLEMS.
NHTSA complaint #11388915 — an unverified report by a vehicle owner.