Can a Porsche with PSM malfunction be driven?
2 Answers
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.
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.
