Howdy! One of the most famous and reliable car manufacturing companies is undoubtedly General Motors, whose cars can be found all over the world. No matter what country you are in, if you use a car from this brand and it breaks down, you can always find the general motors customer service number to contact them. A company representative will be very helpful when searching for a certified service center, where the car will be repaired quickly and efficiently, and you will be satisfied.