tincan13

I got my 2013 RX350 a few months ago and really love the car. But, my steering / hanling makes the car feel a little light. It wanders a little on the highway and needs a little constant correction to go straight. The first RX350 I test-drove was really bad and felt like I was almost driving on ice. This one is much better. It is equipped with 19 inch wheels and Dunlop 235x55 GrandTrek Touring tires. Is this normal for the RX350?

BertL

Is your wheel alignment OK, or could that be a consideration?

Clutchless

First thing is to check that your tire pressure is within the guidelines on the drivers door frame plate. Check when cold. As BertL advised, get an alignment, something does not sound right. It could also be a defective tire. How many miles are on the tires? How much tread is left and is it worn evenly? The alignment shop can check all this for you. How many miles on the vehicle? Check for leaking rear shocks, check if they are wet from leaks. That is a common problem.

tincan13

The car has been parked for the past two days. I just checked my tire pressure and three of the tire pressure readings are 31 psi and the fourth is 30 psi. It is 7 a.m. and the current ambient temperature is 68 degrees.
There are only 25K miles on the car. But, I will have the alignment and front end checked just to be on the safe side. I doubt that is the cause because the car does not pull just to one side and the tires are wearing evenly. I guess that narrows the problem down to just the tires.

raylor4

Tin Can,
An alignment check should uncover looseness in the steering apparatus which could cause wandering even though the wheels are perfectly aligned. You have electric steering and I'm not sure what would cause your situation, but as was said earlier, something is definitely wrong. Your car should NOT do this. It should go straight down the road like an arrow.
Ray A.

justin1203

Second that.

Even on snow my car didn't have the "driving on ice" feel.

gusar

He wrote "It wanders a little on the highway and needs a little constant correction to go straight." - I would say that my old RX330 with hydraulic steering kept road better than the new RX350 (2013) with electric one. Difference not big, but noticeable.

tincan13

I've replaced the original Dunlop tires with Pirelli Scorpion Verde A/S Plus tires and there is a noticeable difference in ride and handling. It drives the way it's supposed to.

JT4

This has nothing to do with our RX, but I can relate to the tire change.

I just replaced the OEM Dunlops on my middle son's 32K mile, 11 Accord with Pirelli P7's. There was plenty of tread left but they became very noisy and made the car feel like it was riding on bricks.

The difference the Pirelli's made in the handling and comfort is amazing.