2024 Toyota SIENNA HYBRID

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2024 Toyota SIENNA HYBRID has 79 owner complaints filed with NHTSA — that's 1.0x the segment average of 80. The most common issue is other problems (20% of all complaints), specifically: excessive heat coming from all vents and under steering wheel after long time driving. i am very concerned that the vehicle may be caught on fire and then cause injuries or casualties..

5 crash reports 4 injuries

Total Complaints

Recalls Issued

—/5

Safety Stars

1.0x

vs Segment Avg

Known Problems

OTHER

16 complaints

20%

• Excessive heat coming from all vents and under steering wheel after long time driving. I am very concerned that the vehicle may be caught on fire and then cause injuries or casualties.
• I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.
• Sunroof exploded out of nowhere. Extremely loud. Sounded like a gunshot.

Typical onset: 50K miles Est. repair: $500

“Excessive heat coming from all vents and under steering wheel after long time driving. I am very concerned that the vehicle may be caught on fire and then cause injuries or casualties.”

— NHTSA complaint filing

BRAKES

15 complaints

19%

• I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.
• When coming to a stop at a red light or a stop sign vehicle keeps surging forward. Something in the vehicle is releasing the brakes. Seems to be happening on a regular basis, but is still randomly happening, Every day. If you’re close enough to the vehicle in front of you, you will hit the vehicle
• The contact owned a 2024 Toyota Sienna Hybrid. The contact stated while driving at an undisclosed speed, the brake pedal was depressed, however, the vehicle failed to stop as intended. No warning lights were illuminated. The contact stated the vehicle was unstoppable. The contact stated the opti

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.”

— NHTSA complaint filing

SPEED CONTROL

7 complaints

• Vehicle was driving on a slow traffic local street at roughly 10MPH. Spacing between car in front of me was around 30 ft. I was gliding towards front and ready to brake. Suddenly the vehicle start to accelerate hard by itself without driver’s operation. I tried to engage brake / gas pedal and was no
• When crossing a one-way road with oncoming traffic from the left, a vehicle that has recently passed might be triggering the forward collision avoidance system which cuts off throttle control to the Sienna, even when the passed vehicle is well out of the way. It is unknown if the collision avoidance
• Van purchased new October 2024. On two separate occasions, one in late 2024 and next today, [XXX], when pulling into street from a stop, there is no throttle response. You push the accelerator at varying pressure and no response for 2-3 seconds. This is a severe safety issue as it could cause an acc

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“Vehicle was driving on a slow traffic local street at roughly 10MPH. Spacing between car in front of me was around 30 ft. I was gliding towards front and ready to brake. Suddenly the vehicle start to accelerate hard by itself without driver’s operation. I tried to engage brake / gas pedal and was no”

— NHTSA complaint filing

ENGINE

6 complaints

• I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.
• Hello, leader. I bought my car (Sena Platinum Edition) for three months. Due to a mistake in the appearance, I need to replace the engine now. My new car will definitely depreciate if the engine is replaced, so I hope Toyota headquarters can refund me in full. I need to buy a new Sena! My house is f
• The contact owns a 2024 Toyota Sienna. While the contact’s wife was driving 5 MPH out of a parking lot and attempting to make a left turn, the vehicle suddenly lost motive power and stalled. After approximately 3- 4 seconds while depressing the accelerator pedal several times, the vehicle eventually

Typical onset: 50K miles Est. repair: $500

— NHTSA complaint filing

SEATS/RESTRAINTS

6 complaints

• Rear foldable seats do not lock down into compartment. They bounce up when you stop just a little hard. Cable has already broken when this occurs. Anything laid on top of these seats when folded will be ejected inside of car. Hitting driver in the head. This is very dangerous. Already brought to dea
• My child [XXX] ) engaged the automatic locking retractor (ALR) and as it wound back in it wrapped around his neck. By the time we got to him it was tight enough that it was difficult to move or rotate or slide the seatbelt over his head, and we ultimately cut the seatbelt to free him. In addition
• The 3rd row seats do not remain stowed when passing over a speed bump or dip in the road. Depending upon the speed of the vehicle, the seats might jump up several inches and almost return to the fully stowed position with a loud thud. The seats then bounce up a few inches from the fully stowed pos

Typical onset: 50K miles Est. repair: $500

“Rear foldable seats do not lock down into compartment. They bounce up when you stop just a little hard. Cable has already broken when this occurs. Anything laid on top of these seats when folded will be ejected inside of car. Hitting driver in the head. This is very dangerous. Already brought to dea”

— NHTSA complaint filing

Estimated Repair Costs

OTHER(~50K mi)

$500

BRAKES(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

ENGINE(~50K mi)

$500

SEATS/RESTRAINTS(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 79 owner complaints for this specific year, here's what to check or ask about:

☐
OTHER: Excessive heat coming from all vents and under steering wheel after long time driving. I am very concerned that the vehicle may be caught on fire and then cause injuries or casualties.
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.
Typically appears around 50K miles. Repair cost ~$500
☐
SPEED CONTROL: Vehicle was driving on a slow traffic local street at roughly 10MPH. Spacing between car in front of me was around 30 ft. I was gliding towards front and ready to brake. Suddenly the vehicle start to accelerate hard by itself without driver’s operation. I tried to engage brake / gas pedal and was no
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)