Service ABS System and Stability system warnings
The 'Service ABS system' and 'Stability system' warnings came on the other
day on my 2008 Pontiac Montana (109,000 km). This happened many times
in the past with no problems that followed and seemed to have fixed itself
and didn't see the warning light anymore after a few days. Driving home this
afternoon, I started to accelerate after turning onto a main street when I felt
like a jolt (it felt like the brakes where pressed and then released in split
second intervals). About 100 feet later, it happened again. What could be
the problem and what should I do? FYI: I regularly take it to the shop for oil
change and for the yearly maintenance (except for last year). Thanks!