Q: Car shuts off when driving below 40 mph

Like all modern cars, yours is equipped with a shift interlock system that’s designed to prevent the car from being put into gear if the brake lights aren’t working. If the brake light switch fails, the lock will activate and...

Your vehicle has a security system for the door locks, in case you unlock the vehicle but never get in it. If the doors are unlocked via the wireless remote control, but not opened within 60 seconds, then they will...

The shift P Warning Light is located on the instrument panel. This light illuminates when the vehicle is turned off, but the shifter is not in the P position. Either turn the vehicle back on, or move the shifter into...

This is a question that could only be answered after an inspection is done to see if the leak is an active heavy leak that may leak out all the oil before getting to where you have to go. The...

GM has had many issues with their digital dashboards, and this sounds like one more. Disconnecting the battery for a few minutes, then re-connecting it will give you a reset. More often, a "rebuild" or refurbishment of the digital dash...

the most common cause of a belt breaking or coming off is the belt tensioner seizes and throws off the belt. Have the tensioner and belt replaced. Check all the other pulleys are free moving and not seized.

Hello, thank you for writing in. Engine knock can be caused by several different issues. Even with the oil full, if it is not being sent to the places in the engine that need it. Low oil pressure can be...

Hi there - to respond to your specific question, the answer is to use a higher temperature brake pad material (like a ceramic or carbon brake pad) - rather than a different rotor for your rather heavy vehicle. The brakes...

Check the level of engine oil to be sure they actually added oil. Check to be sure the gas cap seal is in good condition and the cap is secure (a loose cap is a common cause of a warning...