I noticed some slight vibrations in the pedal on my new 2018 RX 450h when driven at speeds over 80 mph. I feel them mostly in the gas pedal. I don't remember having any vibrations on my 2106 RX 350. That one had Michelins and the hybrid has Bridgestones. Does it make a difference? Do all 2018 RXs come with Bridgestones now?

 

That sounds like a balance problem.

 

That's what I thought at first but I only feel it at speeds over 80 mph. Shouldn't balancing problems manifest themselves at lower speeds as well?

 

i wouldnt think its a balance problem with the tires if you are only feeling it in the gas pedal. i would expect to feel it in steering wheel and not the gas pedal.

how bad is the vibration?? very slight? or your foot is rattling up and down?

 

Unbalanced front tire most likely will be felt through a steering wheel
But if it is rear wheel it can show up anywhere through the body of the car.

 

It's not too bad. It's vibrating slightly but enough for my right foot to feel it and be kind of annoying. I definitely don't feel it in the steering wheel. I got the car a month ago and I felt it the day after I got it and then every time I would get up to 80+ mph.

 

I'm assuming you're going to take it back to the dealer?

 

Yes but I am looking for pointers from people to guide the dealer in the right direction because you know how the dealers are - always eager to say that they cannot replicate the problem.

 

No. Sometimes you can only feel it above or around certain speed.

 

I would take it to the dealership and ask them to rebalance all your wheels.

 

A balance issue is the likely issue. The steering is electric so vibrations through the wheel may not be as evident as on other cars.

 

Could be a tire out of round as well.

 

Out of round? Do you mean out of balance?

 

No, they're two different things. Out of round means "egg-shaped". An out of balance tire could still be perfectly round.
A rim could also be out of round, say from hitting a curb while parking etc.

 

I doubt it's an out of round issue. I got the car when it had 10 miles on it and felt the vibrations right on the next day.