Skip the auto shop - Our mechanics make house calls

Q: Whole thing shakes on the highway at high speeds, how does that happen?

asked by on

My 2014 GMC Sierra has just about 12,000 miles on it and whenever I am at highways speeds now, it just vibrates the whole time. This is really worrying in such a new car! When I am towing anything the shaking is even worse and that is a big part of the reason I bought this truck! What is the issue here, or is this just a lemon? I don’t want to put myself or my family in danger but I am not about to spend thousands repairing an expensive new truck!

This is an ongoing technical issue that GM has not found a fix for yet. There is a lot of speculation of what is causing the vibration, but until the engineers come up with a fix, I cannot recommend a fix at this time. The vibration is from the drive train and could be internal to the transmission or in the driveline assembly. Make sure you documented that you took to the dealer and they could not fix it. When GM does come up with a fix, it should not cost you for whatever the repairs may be.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Whole thing shakes on the highway at high speeds, how does that happen?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Airbag warning light is on on the dashboard a lot

The first thing I would do is find out why they did not go off in the accident. If you were in a high speed front end collision, the airbags should have deployed. I cannot speculate if the prior repairs...

Q: Fuel tank has no shield & cracked by rocks/debris

Hello there, this is an uncommon issue. With the exception of a few vehicles, fuel tanks in vehicles are made from plastic and unshielded. In almost all circumstances there is no adverse effects from this. The fuel tanks can crack...

Q: How do I use the rear seatbelt comfort guides?

The rear seatbelt comfort guides are designed to make the rear seats more comfortable, especially for younger and smaller occupants. They’re very easy to use: 1. Find the safety belt comfort guide in the storage pocket on the side of...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.