As city street braking deceleration is ending, the engine suddenly surges and accelerates RPM. I must immediately apply hard pressure on brake pedal to prevent van from surging ahead and also immediately move automatic shift lever to neutral to disengage power train. After about 2 seconds the RPM acceleration will stop and return to normal. Toyota dealer checked issue multiple times, finding no issues. This is a random occurrence that started shortly after purchase and continues to this day and I've come within inches of smashing into vehicles in front of me. I reported to toyota corporation but the ombudsman blew me off saying there is no known sudden acceleration issues. No offers to resolve from toyota. This has happened so many times, I can no longer remember the initial date and exact mileage this issue started to occur other than within the first 4 to 6 months of purchase. Additionally the speed control was never activated when issue occurred.
2014 Toyota Sienna engine complaints
Page 2 of 2: complaints 11 to 12 of 12, newest first, as owners wrote them.
Loss of acceleration after braking. Vehicle will cease responding to the accelerator pedal after braking, will continue to go slowly (~20 MPH) for 3-5 seconds, then accelaration will resume. Happens at any time in any situation; brakes just have to be tapped to lose acceleration, has been happening since vehicle new.
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