Two problems related to wheel bolts have been reported for the 2004 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Sienna based on all problems reported for the 2004 Sienna.
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.
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.
| Wheel problems | |
| Wheel Rim problems | |
| Wheel Bolts problems |