so the luster is off the purchase of our 2013 Cadillac srx. after an exhaustive search for almost a year for the perfect car-ish crossover to replace my girlfriends jeep, we settled on a sexy white srx. being a long time Cadillac fan, and having a father that worships the brand, it seemed like a perfect choice. it was a low miler used vehicle that was imported to Canada and sold be Don Wheaton Chev olds. Having felt lucky it was the correct color and trim level, we snapped it up immediately. unfortunately that was only a week ago, and yesterday while driving and coming to a stop, and trying to pull out into traffic turning left, i experienced an "episode". hit the throttle, it kind of lurched and stopped. i thought it had stalled. i had time to say "what the %$#@" looked down at the tach to confirm it was still running, looked down at the gearshift to see if i bumped it out of gear, and then it sputtered and came to life and moved forward. it felt like something i should have experienced with me carburetted 69, not a 2013. I'm educated enough to know that there is something wrong with a control system, and when i consulted the www. to see if the Cadillac was a drive by wire throttle, i found this thread. surprise, surprise, we are not the only ones that have experienced this before. the internet is amazing for identifying chronic problems with everything.
I guess the question i have is has anyone operated a data logger and logged the event when it happened? Since we operate in a world of PLC's and logic devices, i'm not so sure that we aren't experiencing a issue with the hard code in the software that operated the srx. Hence no one can find fault in the hardware, and the ECM can detect no fault, it may be operating exactly how it is being told to operate, the scary operation is just a result of that. To top it all off, no dealership is going to have access to the logic string to be able to go through it bit by bit to see what line of code causes it to nullify the throttle input until some other logic is verified, so it can again apply it. I started my life as a mechanic, so i know how hard it is going to be for someone to trouble shoot a intermittent problem like this, and am currently working with large projects that have a lot of involvement with complex PLC control, and have pulled my hair out with equipment that has had improper operation, particularly with braking circuits, only to find out the it was a line of code telling it to do something, and you just didn't know that line was in there. With all the advances with anti-collision, anti-skid, anti-spin, anti-driver control everything (anti-fun), it will take a petty in depth effort to remove the drive-ability problem. Hope the dealerships are ready for it up here. Going back to them this week......b