They're so computerized you can't do sheet to fix them yourself and all the mechanics at the dealership know to do is hook them up to a computer and start switching parts until they get it to work.
I had my Chevy truck in the shop for almost 2 weeks until they figured out a low oil pressure warning issue. Now I have Toyota Corolla (of all cars!) in the shop with an issue that the mechanic is in the process of sending the computer info. to Toyota headquarters to see if they can figure it out.
New car technology is nice and all, but dang it's a pain in the a$$!
I'm about THIIIIS close to saying to hell with it and finding me a pre-1974 gas-guzzling, carbureted, pre-emissions controls vehicle like a Chevelle or Monte Carlo - something I can work on and is simple to fix!
Had this issue just lately with 160,000 mi on 2011 gmc sierra- twice. 9 mo ago a mechanic onnthe side fixed it with oil sending unit signal part on the back topside just in front of the firewall. It read no pressure and alarm rang. Drove it that way several days till he replaced the part.
Started up again a couple of weeks ago. Guage read 4 lbs pressure. This time it was the cheap plastic inline filter to the signal sending unit insde the motor just ahead of the sending unit. Whew. Thot for a while it was the oil pump.
