Wheel Bolts Problems of Toyota Sienna

The contact owns a 2006 Toyota Sienna. While driving at an unknown speed, the lug nuts fractured on all four tires. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 121,000.

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2003 Toyota Sienna,wheel broke loose from vehicle. According to the police report, the wheel broke from the lugs. Rotor. (ohio traffic crash report # 10-0221-91.

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Twice I have had a tire stud break while replacing a tire, specifically the left front wheel on my 2004 Toyota Sienna with aluminum wheels. Both times the lug nut was being torqued to the correct setting of 76 ft-lbs.

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Front passenger wheel started to vibrate. After approximately 1 mile, all (5) wheel studs sheared off, and wheel fell off of vehicle. Lug nuts did not appear to be loose prior to studs shearing.

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Left rear wheel stud broke when torqued to 85 ft. Lb. Torque specs is 76 ftlb as mentioned in the owners manual; and if one stud can fracture at 85 ftlb, it is possible that the others have gone into yield zone, too. This is a very poor design and a safety risk. Design should be robust to handle DC nut runner, pneumatic drives, and manual drivers; which this stud was not capable to handle.

After a blowout on my left front tire on my 2002 Toyota Sienna xle, I discovered that the lug nuts designed for the aluminum wheels do not fit the steel wheel of the full size spare, and Toyota does not provide the "acorn" type lug nuts for the spare. The lug nuts for the aluminum wheels do not seat properly against the steel wheel spare. I believe that not providing the proper lug nuts for the spare is a serious omission on Toyota's part and makes driving with the spare with the improper lug nuts very dangerous.

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Two times I rotated the tires and the lug nuts cracked in two. Some fill real spoungy. I went to Toyota dealer but the would not replace them, the said they were tighted to much. In 25 years working on cars I never seen lug nuts break. So I purchase new one and right away I new they were better. So I showed them to the service manager, he still said there is no problems. I said there must be, the new ones are better (more theads, wt. More, & better steel ) also two lug nuts broke taking them off.

The consumer states one lug nut on two tires had broken and sheared partially off. The consumer was rotating the tire when the problem was found. The dealer was notified and had no knowledge of other failures. The lug nuts were replaced. .

While traveling on highway heard a noise. Consumer was able to pull over. Passenger's side front wheel fell off. Consumer stated that the dealer told him there was a recall on the model and the year of the vehicle, but not on his vehicle because of VIN. # and they said the recall was only for cars/vans with a special wheel.

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VIN 4t3zf13cxyu318393. Electrically operated sliding door opens and cannot be closed. Dealer and importer do not think they are responsible for this safety defect (out of warranty). My daughter's Sienna, VIN 4t3zf13c8zu471006, which is a year younger has the identical problem, so does one of her friend's Sienna. I don't have that vehicle's VIN but I could get it. Toyota claims : no safety issue, defects are coincidental. Right!!! their investigators should take probability 101 at their local community college. To top it all, the repair costs $750. What an insult! before I forget; my Sienna had two wheel mounting studs shear off. I torque the nuts myself with a torque wrench set at 85 lb/ft. I suppose this is not a safety defect either since there are five studs holding the wheel. Since the importer is not concerned, perhaps they will be when you add this information to your database.

1 wheel bolt severed while trying to remove lugs: nuts. 1 wheel bolt severed while tightening lug nut. Both bolts failed on the same day and were being worked on by different people.

3 out of 5 lugs on one wheel sheared off when replacing tire. Mechanic claims to have used torque wrench set well below factory specs. Not clear whether lugs are defective or mechanic over-torqued. Lug nuts are designed for mag wheels but spare is not a mag. Appears possible that using these nuts on a standard wheel results in nuts being swaged onto the lugs such that they subsequently fail. Meachanic reports that this happens about once a month on this vehicle and much more frequently on similarly designed isuzu lug nut.

At all times when applying brakes they would make a high pitch/grinding noise. Did not affect stopping. Took vehicle to dealer, and was informed that entire braking needed to be replaced. Consumer was also informed that replacement parts are defectively designed, consumer stated that the backing plate is too thin and defective. Left front rear wheel lug nut was cross threaded. Knocking noise from the right front when going over bumps, dealer replaced strut mounts.

Lugs: nuts are defective, causing tire to fall off . Dealer has been notified.

See all problems of the 1999 Toyota Sienna 🔎.