The driver of a black Chevrolet Suburban lost control of his vehicle in Palo Alto and flipped the car onto its roof on Monday morning.
The middle-aged man and his wife were traveling on the freeway ramp to southbound U.S. Highway 101 at Embarcadero Road about 11:40 a.m. when the accident occurred. The SUV skidded from a curve in the road, plowed through the guardrail and landed top-down at the bottom of the grass embankment. It did not block traffic.
The driver said he had his automatic four-wheel-drive feature turned on, but it did not appear to kick in. He suddenly began to skid, and the car started spinning.
"It kept spinning and spinning. It hit the guard rail and went down the embankment and flipped over," he said. He asked to remain anonymous.
The man and his wife were wearing seat belts, which prevented them from being ejected. They hung upside down in the overturned vehicle, but they were able to extricate themselves. Neither was injured, he said.
California Highway Patrol officers arrived on scene and a tow truck righted the vehicle. CHP Redwood City spokesman Officer Moises Escoto said that speed was likely a factor. The road was not slick from rain.
Drivers should exercise caution, especially in the rain that is expected this afternoon, he said.