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10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 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.

2022 Toyota Sienna electrical problems

electrical problem

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2022 Toyota Sienna Owner Comments

problem #5

Dec 052023

Sienna

  • miles

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

Our 2022 Toyota Sienna would not start after arriving at a doctor-??s appointment. Contacted active ToyotaCare for towing - no one showed up. Called a friend to jump start van; consulted the owners-?? manual and performed jump. Van started but could only be driven about 100 yds in parking lot. Van stopped; multiple error codes showed up when trying to jump start again. ToyotaCare didn-??t call again or show up so we ended up paying for tow service to the dealership - Haley Toyota of Richmond. Dealership checked vehicle; concluded the battery had an internal weld problem but that the jump start was not performed properly even though the manual was followed. There are no jump start instructions in the engine compartment. We were given a Tech Bulletin instruction sheet with more accurate information. We were advised the Engine Control Unit was burned out, causing all the error codes and would not be covered under warranty because -??we-?? did not perform the jump start correctly. The cost of repair is almost $1100 but the battery, which started all the issues, is covered under warranty. The Tech Instruction sheet indicates to me that Toyota was aware of the inadequate jump start instructions and failed to inform customers of the possible issues. The Tech Instruction sheet we were given is dated April 6, 2022 - one month BEFORE we purchased the vehicle. The sheet lists all Toyota hybrid models as affected.

- North Chesterfield, VA, USA

problem #4

Sep 012022

Sienna

  • miles
Ever since a tire was changed on the vehicle, it has had a recurring error message that states there is a malfunction in the tire pressure monitor system. As such, I rarely know the status of my tire pressure as the system has the malfunction at least 50% of the time. The car has been in service 2x for this issue and they have had it for close to 30 days and driven it all over saying they needed to drive it to make the error go away. They have replaced the sensors on the tire, nothing has worked and the problem still occurs daily.

- Sebastopol, CA, USA

problem #3

Apr 262023

Sienna

  • miles
Over the past 18 months, this vehicle has exhibited the following actions approximately 30-40 times. When slowing the vehicle, with brake pressure applied, the vehicle reacts appropriately until, at the slow speed( approximately 5-10 mph) it suddenly accelerates or surges ahead for approximately 1-2 seconds. The has occurred while in the process of turning as well as moving straight ahead. I have taken the vehicle to the dealer of the original sale, Shepard's Toyota, Thomaston Maine, and they have attempted to replicate this action. They were unable to do so. The reported to me that they contacted Toyota engineering and was told, I paraphrase, that when the drive battery is fully charged and the dynamic braking system is still creating a charge, the current is directed to the drive motors, despite the fact that the brake is applied to slow and stop the vehicle. These events have occurred inn the middle of turns, when attempting to stop at crosswalks, and stopping prior to entering a traffic stream. If I had not continued to apply the brake, the vehicle would have, in several case, collided with objects.

- Camden, ME, USA

problem #2

Dec 122022

Sienna

  • miles
The TPMS sensors stop working when driving at highway speeds and won't tell you the air pressure. Says see dealer but when I take it there, they can't do anything. Has happened probably 10 times. Usually only on interstate. Can be safety hazard if tire pressure goes low and no idea.

- West Columbia, SC, USA

problem #1

May 152022

Sienna

  • miles
This van was converted to be wheelchair accesible by Vantage Mobility International. My parents have repeatedly had an error arise that indicates an issue with the hybrid battery cooling system. This system was modified by VMI, in partnership with Toyota, to allow for the accessibility features to be added to van. Neither the vehicle dealer, Superior Van and Mobility in Knoxville, TN, nor the local Totota dealer, Toyota of Knoxville, have been able to rectify the issue, despite mutliple attempts.We are concerned that this is a safety issue, and have asked for written confirmation of that and for the issue to be resolved. None of the three parties, Superior, Toyota, nor VMI, have been willing to do that nor rectify the issue. (I have filled this out for my parents because this has already become so stressful and in the wake of my dad's rapidly progressing disability, I don't want either of them to have to deal with more of the headache with this.)

- Lenoir City, TN, USA

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