Can a Porsche with PSM malfunction be driven?

[StJace]

When a Porsche experiences a PSM malfunction, it should not continue to be driven. The driver should reduce speed and proceed to a 4S dealership for repairs as soon as possible, because a PSM malfunction can cause the vehicle's wheels to deviate from the correct driving direction, compromising driving safety. The Porsche PSM malfunction indicates a failure in the stability management system. This system includes an integrated safety system comprising electronic systems such as the anti-lock braking system (ABS), automatic braking differential system, and acceleration slip regulation system. Once the PSM system in a Porsche malfunctions, it is often difficult to repair and usually requires replacement. To ensure the vehicle does not deviate from the correct driving direction, multiple sensors continuously monitor the vehicle's driving direction, speed, yaw rate, and lateral acceleration, calculating the actual driving direction. If the vehicle shows tendencies of oversteering or understeering, the PSM stability management system will apply independent braking to the corresponding wheels.

[KatherineLynn]

I also encountered the PSM warning light coming on when I was driving a Porsche Cayenne before, and I was a bit panicked on the highway at that time. PSM is equivalent to the vehicle's electronic stability system, specifically responsible for body balance - it's what keeps the car from skidding during turns. If this thing fails, the car becomes particularly prone to skidding and losing control on slippery roads or during sharp turns, especially dangerous for rear-wheel-drive models like the 911. Once in the rain, I gritted my teeth and drove 10 kilometers to the dealership, not daring to exceed 40 km/h the whole way, with the steering wheel feeling as heavy as if it were filled with lead. My suggestion is that as soon as you notice the warning light, immediately turn off sport mode, and absolutely avoid sudden acceleration or sharp steering. The safest option is to call a tow truck directly - don't risk a rollover to save a few hundred bucks in towing fees, especially since Porsche repairs cost way more than towing.

[AdelynLynn]

Our repair shop frequently handles Porsche PSM malfunctions, with two or three cases every week. About 80% of these issues are caused by dirty wheel speed sensors or wiring harnesses chewed by rodents, and sometimes by water ingress in the control module. While short-distance moves might not pose immediate problems, I've personally witnessed a client stubbornly driving with the issue, resulting in a wall scrape during a parking lot turn—without PSM, the system doesn't automatically adjust brake force between inner and outer wheels during turns. If you must drive in an emergency, remember these four tips: switch the driving mode to Comfort, start slowing down 200 meters before a turn, absolutely avoid flooring the accelerator, and simply don't drive in the rain. One last piece of advice: check the tire pressure before heading to the dealership, as incorrect tire pressure can trigger false fault alerts, saving you unnecessary expenses.

[WilliamLynn]

Last week, my 718 showed a PSM malfunction. After checking the owner's manual, I learned this system also manages traction control. Simply put, it intervenes when wheels slip, and when faulty, it's like the computer crashes and stops working. I was on a suburban road at the time and drove slowly for 5 kilometers back home, swaying like a boat the whole way. Later, I found out that the aftermarket brake pads were too thick, triggering a false alarm, and reverting to factory parts fixed it. If your car hasn't been modified, chances are you'll need to replace the sensor—original parts plus labor could cost four to five thousand. Short-distance moves might be manageable, but definitely avoid highways—last year, a Panamera with PSM failure spun three times on the Shanghai-Hangzhou Expressway, even knocking down guardrails.