2006 Toyota Sienna: ABS light or ABS activating

Filed Oct 4, 2023 · Brakes, Steering · NY

Bought the van used last year. Previous owner said mechanic could not diagnose the issue. On slight curves similar to on-ramps while accelerating the Vehicle stability control (VSC) will engage unexpectedly, sound an alarm and jerk the steering wheel. Some times to the point of pulling the vehicle out of its lane. Road speed is decreased dramatically as it feels as though the ABS is engaging. This has happened to me at least half a dozen times since June 2023. The condition will continue for maybe five or ten seconds until the wheel is straightened and speed reduced. Searching the Internet seems it's a fairly common problem. The fix might be to replace the steering rack or disable the VSC system. It's reported by those experiencing the issue get little to no help from the dealerships which strikes me as quite strange... From what I've read it seems to affect 2004-2009 Siennas

Filed Jan 28, 2023 · Brakes · AR

Every time I go around a curve, the ABS TRC and vehicle beeps like I'm sliding. It happens on every curve. Its very dangerous. I have unplugged the sensor under the front passenger seat and all problems go away. i have replaced this part and it still has not fixed the problem. with part unplugged i have no ABS TRC Airbags none of the safety equipment is working while unplugged, but is safer than having my brakes slammed in every curve.

Filed Aug 23, 2022 · Brakes · 90,000 miles · FL

The contact owns a 2006 Toyota Sienna. The contact stated that she heard a strange noise while decelerating and the brake pedal failed to engage. There were no warning lights. The contact continued to depress the brake pedal with force until the antilock braking system engaged but failed. The vehicle was towed to an independent mechanic where the brake pump was replaced but the failure recurred. The contact then had the brake pump replaced for a second time, but the failure recurred. The vehicle was towed to another independent mechanic where it was diagnosed that the ABS needed to be replaced and the contact was advised to take the vehicle to a dealer. The dealer was notified of the failure and informed the contact to take the vehicle back to the independent mechanic. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.

Filed May 14, 2022 · Brakes, Driver assistance · CA

Vehicle Trac Control/ABS system engages periodically especially on winding roads between speeds of 30-60mph. Trac Control alarm goes off and vehicle pumps brakes automatically, then resolves. This is extremely dangerous especially when roads are wet/icy or when being followed too closely by another vehicle. Tried replacing front right wheel speed sensor but problem persists. Research shows this is a chronic problem with Sienna vans and needs to be repaired or guidance provided by Toyota on how to resolve before someone gets hurt. Please help!

Filed May 9, 2022 · Acceleration, Driver assistance · MT

While driving vehicle on dry, non slippery roads with slight to moderate curves, vehicle illuminates Traction Loss light, sounds alarm buzzer, and at times applies brakes and dethrottles engine, even when no loss of traction has occurred. This happens while driving on straight roads with slight unevenness. Had to disconnect wheel speed sensor harness to disable ABS/VSC system. When this happens, the vehicle automatically applies brakes to certain wheels and dethrottles the engine, this can pull the vehicle to one side sharply and can cause an accident.

Filed Nov 13, 2021 · Steering · CA

My Toyota Sienna XLE 2006 VSC and ABS comes on when I drive uphill or downhill mostly when I steer to the left. This is a situation common on freeway ramps in or out. When this happens the car slows down abruptly beeps a loudly. This is an issue reported by many owner of that vehicle model across several years.

Filed May 11, 2021 · Brakes · 141,000 miles · KY · crash

With no warning ABS will lock up and cause van to violently swerve to the right while driving. Sometimes once , other times several times in a row. Only lasts for a few seconds. But long enough to cause an accident. Terrifying to loose complete control of your vehicle until it decides to give you control again. Several trips to different toyota dealers as well no less than 5 different mechanics and no one has any idea what causes it. However the toyota dealers were all very familiar with the issue but had no idea how to fix it. This has been going on for 18 months. The internet is full of people trying to solve the same issue in 2004-2010 toyota's in all models. Please help!

Filed Feb 13, 2021 · Brakes, Steering · 204,000 miles · CO

When cornering the vans stability control activated without warning and modulates the ABS brakes and beeps and becomes very unstable. My wife and I have both experienced this and fear it will cause a car accident. It is not happening all the time but makes me worry every time we drive a windy road. We had the toyota zero point calibration done, have replaced wheel bearings and done an alignment which have not changed it at all. It typically happens on curvy roads between 25 and 65 MPH.

Filed Jan 14, 2021 · Brakes, Steering · 190,000 miles · WV

About a year ago the slip indicator light (car with swervy lines) started coming on intermittently and without warning while turning on highways or roads in dry conditions without any risk of tires slipping. The ABS activates without warning and the vehicle slows down on its own. The situation is very dangerous. No known fix from toyota.

Filed Oct 31, 2020 · Acceleration, Driver assistance · 191,000 miles · MO

Traction control and ABS activated on dry roads acting like the vehicle thought it was going into a slide/skid. This could have caused a serious crash!

Filed Jun 25, 2020 · Brakes, Steering · 200,000 miles · MO

The slip indicator light (car with swerve lines) started coming on intermittently while turning on highways etc. (but not when any risk of tire slipping). Then vsc light also came on and alarm sometimes sounded. Visit to our own mechanic, no problems found. In the last 2 years the ABS system has activated (daily) it unexpectedly applies the brakes while in motion. It is on specific types of curve and while driving at least 30mph, but has done at 35, 55, 70 MPH, on slight or medium turns (not real sharp turns), going uphill or downhill and left or right. Took my mechanic for a ride with the diagnostic computer hooked up, it did the ABS braking, warning light, and beeping 5 times but computer showed no codes. Suggested resetting yaw which we did, it did not help. Suggested calling toyota, they were no help, said they had never heard of that problem and my mechanic probably did not know how to read the computer. When ABS activates it's very dangerous - thinking about deactivating entire vsc system. I believe the rack and pinion may play a role, there are rattle and bump sounds, perhaps a loose suspension is the culprit, that is our next option. I have already replaced struts, front wheel bearings, all new tires, had it aligned, did new brake pads, and rotors. Absolutely fed up with this problem!

Filed Jun 21, 2020 · Brakes · 180,000 miles · GA

Traction control activates on dry pavement at random speeds causing vehicle ABS system to brake automatically. This happens on gradual curves taken at 30-45 MPH causing the vehicle to pull when ABS activated.