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2004 Toyota SIENNA Electronic Stability Control Problems, Complaints and Defects

Issue ID	1214741
Internal NHTSA #	10760107
Manufacurer	Toyota Motor Corporation
Brand	TOYOTA
Model	SIENNA
Model Year	2004
File date	15/08/15
Component	ELECTRONIC STABILITY CONTROL
Product type code	VEHICLE
Description of the problem	The following has happened several times over the past couple years. The latest 2 times were on a ramp at about 25mph coming off an interstate and at about 65mph an interstate. While cornering to the left a fair amount, but well under control, the vsc started alarming and kicked in. When it kicked in, it caused the vehicle to swerve hard to the right as if it had locked up the brakes on the right side of the vehicle. In both cases, the vehicle swerved into an adjacent lane. Had anything been in that lane or had we been in an outside lane, the vcs would have caused a serious accident. Whatever the cause, the vsc in this vehicle is very dangerous. Over the 12 years we've owned the vehicle, it's unlikely that the vsc has come on more than 5 times. Since it's so rare, we drivers have no experience with the behavior and the vehicle is compliant until the vsc kicks in. When it kicks in, the car has presumably determined that some stabilizing action needs to happen, yet, instead of providing safety - the very purpose of vcs, it unexpectedly locks up the brakes on one side of the vehicle and causes it to swerve out of its lane. Note, the vehicle has recently had a brake job. Under hard braking, the vehicle stays in its line, and does swerve at all, so it's whatever the vsc is doing to "provide stability" that's causing the lockup/swerve issue. Finally, from the internet, a couple quick queries led me to postings by other sienna owners who'd experienced very similar behavior, so this is not an isolated incident.
Vehicle Mileage at Failure	220000
Number of Occurences
Source of the issue	NHTSA WEB SITE
City and State	HERNDON, VA
VIN pattern	XXXXXX
Was vehicle invloved in a crash?	N
Was vehicle involved in a fire?	N
Was incedent reported to police?	N
Was medical attention required?	N
Was part original equipment?
No. of injured persons	0
No. of fatalities	0
Date of purchase	07/08/26
Was original owner?	N
Anti-lock brakes	N
Cruise control	N
Number of cylinders
Drive train type
Transmission type
Vehicle speed	65
DoT tire identifier
Tire size
Location of tire code
Type of tire failure code
Was defective tire repaired?
Date of manufacture
Type of child seat code
Type of restraint
Dealer's name
Dealer's telephone number
Dealer's city
Dealer's state code
Dealer's ZIP code

What is Recall?
A recall is when a product is removed from the market or a correction is made to the product because it is either defective or potentially harmful.
What is Failure?
Failure is the state or condition of not meeting a desirable or intended objective, and may be viewed as the opposite of success. Product failure ranges from failure to sell the product to fracture of the product, in the worst cases leading to personal injury, the province of forensic engineering.
What is Defect?
Non-conformance of a car component with the specified requirements, or non-fulfillment of user expectations, including the safety aspects.

Last decoded VIN:

1J4BE2D17AL192844 1NXBU4EE4AZ358099 JMZDEA4K200435890 UU1BSDA1P45085678 LGXCH6CD8T2076133 VF3LB9HPAFS101429 LJD3BA1D6R0007965 1FMYU92265KC29975 VSSZZZKLZNR038124 WBALS010700T84703 KNAGU416BHA149397 VF77NNFRC9J207237

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2004 Toyota SIENNA Electronic Stability Control Problems, Complaints and Defects, Recalls and Failures

2004 Toyota SIENNA Electronic Stability Control Problems, Complaints and Defects

What is Recall?

What is Failure?

What is Defect?