7.7

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
5,975 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2010 Toyota Sienna transmission problems

transmission problem

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2010 Toyota Sienna Owner Comments

problem #2

Aug 192010

Sienna

  • 11,900 miles

A D V E R T I S E M E N T S

2010 Toyota Sienna : when driving, the slightest touch of the gear shifter causes a shift into neutral. The gear shifter is extremely (and possibly dangerously?) sensitive.

- Plano, TX, USA

problem #1

Nov 202009

Sienna

  • 50 miles
There are multiple problems. Initially there was a whistling noise while driving. The dealer replaced the transmission of the brand new van. The whistling noise was reduced but there are a bunch of other problems. 1. on start the RPM goes to about 1600. 2. there is constant load humming noise coming from the transmission/engine. 3. the vehicle pickup makes a knocking noise sometimes overall I definitely don┐T feel safe driving this vehicle. The dealer and manufacturer says all this is considered to be ┐within normal range┐.

- Cypress, CA, USA

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