I have a 2002 Toyota Prius with 86,000 miles. The steering wheel shakes uncontrollably when first started ( and at very low speeds). Then everything seems to be OK. Touching the brake or a sharp turn may trigger this. We have noticed the problem several times when backing out of the driveway in the morning. Local Toyota dealer says they must see the car when it happens to diagnose the problem. That will probably never happen.
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Re: Steering Problem in Toyota Prius
This violent shaking where you can stop it by holding the steering wheel in my experience is due to a BAD rack and pinion. Replace rack and that will solve this problem. Good Luck and thanks for using FIX YA
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Bad wheel bearing a possibility. Or, warped tire. Jack the car up and spin the wheels and see. It will have to be in neutral to do that. If it is that bad there should be some visible play. If the bearing is bad, steering sharply one way or the other will make the sound more or less, depending on the increased or decreased load on it.
Under steering wheel..haven't inspected a 14 yet so not positive but most are under steering wheel area..some r behind ashtray..some are on passenger side under dash are...pretty sure its under steering wheel tho
From day one my 2012 Prius 3 has had a shake that starts at 63mph ... It seemed alright for while but I noticed it again the other day, I don't ... I first time I took it in they chacked the balance and all four tires were good. .... have never felt any shaking in the steering wheel on either car - only the bodyshakes
PS sign indicates problem with power steering. most likely is has electrically assisted steering and needs attention. may want to contact the dealer to make sure it is not under a recall before pursuing any further. the Prius cars have had alot of problems recently.
This is likely due to a defective horn contact under the steering wheel called the clock spring ribbon rotating contact drum. You must disarm the airbag system and remove the steering wheel (requires special tools) to replace the contact.
with a small flat screwdriver, remove the 2 by 2 inch black plastic covers behind the steering wheel. one of them has a hole for the cruis control lever.
loosen but dont remove the two torx screws behind these covers.
allow the airbag to fall out into your hands.
carefully raise the two yellow retainers on the airbag wires, then pull the wires away from the airbag module.
then squeeze and pull the black horn wire from the airbag.
to replace the steering wheel, unplug all the wires you see and remove the 19mm nut holding the wheel.
then by hand wiggle the steering wheel toward you.