13 problems related to engine and engine cooling have been reported for the 2005 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Sienna based on all problems reported for the 2005 Sienna.
The contact owns a 2005 Toyota Sienna. The contact stated while driving 65 mph, the oil warning light illuminated. The contact pulled over, opened the hood, and added additional oil. The vehicle was towed to an independent mechanic, who informed him that the engine needed to be replaced. The vehicle was towed to the residence. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The approximate failure mileage was 142,000.
The traction control system is activating improperly. The vehicle's anti-slip indicator warning light illuminates; an alarm sounds; the abs system activates; and the vehicle sometimes loses power. This happens on dry roads, most commonly either going downhill or else on a curve, even a mild one. This happens above 20 mph. When it happens, the combination of alerts and sensations are very startling to the driver, creating a dangerous situation. It has occurred while trying to accelerate to merge onto a highway. This was exceptionally dangerous as the vehicle began losing power and vehicles behind us almost hit us from behind as we were slowing instead of increasing speed. From my internet searches (including NHTSA complaints), this appears to be a recurring issue with this make/model/year range. This has been happening for the past 3 months. Our vehicle has approximately 135,000 miles on the odometer.
Tl the contact owns a 2005 Toyota Sienna. While driving approximately 20 mph, the vehicle started to lose power for a few seconds and the esc warning indicator flashed. The contact stated that the failure occurred every day when exiting the highway for approximately six months. The vehicle was taken to team Toyota of princeton (2871 us-1, lawrenceville, NJ, 08648) to be diagnosed, but they could not replicate the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 161,388.
Emissions fail, pre mature failure of catalytic converters (2) , part not lasting ,subject to premature rusting , a problem for most of Toyota cars.
The contact owns a 2005 Toyota Sienna. The contact stated that while driving at various speeds, the vehicle stability control off warning light illuminated and engine would surge, the rpms would decrease and the vehicle would jerk to the left. The contact indicated that the failure would occur for approximately 10 seconds. The cause of the failure was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 145,000.
Testing.
The transmission in our 2005 Toyota Sienna xle failed at about 110k miles.
Catylyst system failed/ not working properly. The left rear door has failed, the cable not working at all. The door does not slide, gets stuck when your trying to open it.
The contact owns a 2005 Toyota Sienna. The contact stated the vehicle abnormally accelerate as she had just taken the gear shift out of park. . The contact was unable to control the vehicle and crashed into the rear of another vehicle. There were no injuries reported. The vehicle was towed to the dealer where the contact was awaiting diagnosis. The vehicle was not repaired. The manufacturer was not contacted. The failure and the current mileage was 62,005. . . . . Updated 06/18/12 the consumer stated one month before the accident, the vehicle would not start. The vehicle was inspected, but a problem was never found. The vehicle idled rough and it was noisy. Updated 06/22/12.
The contact owns a 2005 Toyota Sienna. The contact stated that noises were heard from the dashboard. The noise had not caused any problems with the vehicle. The vehicle was taken to the dealer, but the dealer was unable to determine what caused the noise. The failure mileage was 112,000 and the current mileage was 136,420. Updated 4/2/12.
On December 5, 2007, I came out of costco to find the fire department had already put out the engine fire on my 2005 Toyota Sienna - absolutely no warning. It happened after I had gone in to shop so the engine was completely off with no person in it.
Vehicle has excessive spark knock at low speeds, starting from a stop and at normal driving speed when engine is under a load. Spark knock worse when engine is warmed up and during warm weather. Changing octane level does not help spark knock. This has been happening since vehicle was bought in April 2005. Vehicle has been back to the dealer several times to try to fix the issue to no avail.
The engine speeds up briefly on its own causing vehicle to briefly speed up. It usually lasts only a few seconds.