rusn007

I have a 2009 RX350 w/87K miles. Lately I have noticed that while moving in slow traffic (10-15mph) the car would do a hard shift. Happens about once every couple of months. Today's shift was pretty hard - I thought someone rear ended me (due to the hard jolt).

Purchased the vehicle new... no major problems (except for power steering leak - which was expensive to fix).

Should I be worried? Anything I can do to prevent it?

Thanks in advance.

RXGS

iTrader: (2)

Do a drain and fill on the transmission fluid, may make a difference.

kickin8

iTrader: (1)

+1 for Transmission drain and fill

AWD?

evident

in addition to what the above said, I would have a toyota or lexus dealer do the drain and fill on the transmission.

rusn007

No, Front wheel drive.

I believe I already changed my transmission fluid around 50~60K miles.