At Ponci's Diesel Center in Fortuna, CA, we’ve seen and diagnosed every warning light in the book. Many people ignore their check engine light, and while it isn’t advised, often get away with it. Transmission warning lights are different, however. Here's what it means and what you should do when it comes on.

Transmissions are complicated and intricate pieces of equipment. Many general mechanic shops won’t touch a transmission, if it’s anything more than simply installing a new one. Transmissions are one aspect of a vehicle that even experienced mechanics often don’t dare delve into, and is easily the most mysterious and misunderstood system in the automotive world. You need a shop that you can trust to perform the best work on whatever your transmission may be in need of.