7
questions

I AM HAVING TROUBLE WITH REVERSE GEAR AND DASH BOARD LIGHT BLINKING

As I drive faster

Is there reboot option or computer glitch preventthing the doors from locking?
Door will lock if the physical lock button the car door if pressed in.
On occasions, the back driver side door doesn't lock always.

And it makes a revving sound when I drive. Sometimes the rpm are really high when I am on the highway.

My car has 80,000 miles and now the heat blows cold when sitting still. Any ideas what would cause that and how do I fix it?

Occurred 1300 miles out of warranty. Service person at dealership said never seen it before.

I have never heard of this before in 52 years of owning automobiles including Cadillacs, etc?
The car has 48,000 miles.