
Your GMC Sierra has an engine computer that monitors how well things are working, alerting you when something is wrong. If not, simply tightening them up could get your Sierra running again. If you see a lot of rust, it might be time for new parts.įurthermore, check that the battery cable bolts are secure. Simply inspect the cables around the battery and remove any debris that might be preventing them from having a strong connection. Pull out the rags in your trunk and roll up your sleeves-your GMC Sierra might turn off when you’re driving because of dirty battery cables. It’s wise to keep a flathead screwdriver and backup battery in your Sierra for situations like this.

To figure out if your key fob is the culprit, press any of its buttons.ĭo you see its light illuminate? If not, it’s time to change the battery. Without a working key fob, your GMC Sierra will shut down.

Whereas it’s easy to keep track of your vehicle’s gas levels, it’s common for people to forget about the battery in their key fob. If you run out of gas, the best-case scenario is being near a gas station.īut even if you aren’t, it’ll likely end up running you less money to get yourself out of the situation than many of the scenarios we’ll be talking about shortly.
#NEWCAR THAT SHUTS OFF AT STOP AND STARTS RIGHT BACKUP DRIVER#
However, the driver isn’t always to blame-if a fuel gauge is off-kilter, it may report more gas in a tank than there actually is. So, if you’ve been ignoring your gas gauge for a few miles too long, take a look at it. Running out of fuel is one of the most common reasons any vehicle turns off while driving. Let’s explore the many reasons why this might be happening, starting with the least severe problem. Here’s the good news: When your GMC Sierra shuts down when driving, it’s not always a sign that you have a significant issue on your hands.

Reasons Why Your GMC Sierra Turns Off While Driving I’ll help you sort through the numerous reasons why your Sierra turned off while driving.įurthermore, I’ll share tips at the end of this post to help you prevent it from happening again. Alternatively, it could be a more complex problem such as a dead v12 battery, a faulty fuel pump, or an issue with the sensors. Your GMC Sierra might turn off while you’re driving because of something as simple as it ran out of gas or you need to change the key fob. Why Does My GMC Sierra Turn Off While Driving? I understand firsthand what a time and financial inconvenience this can be, so I’m here to help you sort through this problem. There are fewer things scarier-and more dangerous-than cruising down the highway and having your GMC Sierra suddenly turn off.
