"How reliable is the 2012 Toyota Sienna?"

"Based on 331 NHTSA complaints, the 2012 Toyota Sienna has a median complaint mileage of 58000 miles. The most common issue is AIR BAGS."

"What are common problems with the 2012 Toyota Sienna?"

"The most frequently reported component in NHTSA complaints for the 2012 Toyota Sienna is AIR BAGS, accounting for a significant portion of the 331 total complaints filed."

2012 Toyota Sienna: Reliability Data

Source: NHTSA — 331 complaints

331

Total Complaints

58,000mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

24,000 25th Percentile

58,000 Median Mileage

91,110 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

STRUCTURE:BODY

UNKNOWN OR OTHER

ELECTRICAL SYSTEM

POWER TRAIN

STEERING

WHEELS

SERVICE BRAKES

VEHICLE SPEED CONTROL

STRUCTURE:BODY:DOOR

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"TL* THE CONTACT OWNS A 2012 TOYOTA SIENNA. THE CONTACT STATED THAT WHEN ATTEMPTING TO BRAKE OR ACCELERATE, BOTH PEDALS WOULD BE DEPRESSED SIMULTANEOUSLY. THE CONTACT STATED THAT THE TWO PETALS WERE TOO CLOSE IN PROXIMITY. THE MANUFACTURER AND THE DEALER WERE NOTIFIED OF THE FAILURE, BUT DENIED ANY..."

"JOINING HIGHWAY IN A SITUATION WHERE VEHICLES GIVING WAY CAUSE HESITATION AND THEN GIVE WAY CAUSING BRAKING THEN ACCELERATION REPEATEDLY, TRANSMISSION REFUSED TO DOWNSHIFT ON KICK DOWN, VEHICLE WOULD NOT ACCELERATE, ACTUALLY SLOWED SIGNIFICANTLY FORCING FOLLOWING VEHICLES TO BRAKE .VEHICLE EVENTUALL..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

AIR BAGS 84 complaints

25th: 47,005 mi Median: 58,200 mi 75th: 87,000 mi

STRUCTURE:BODY 55 complaints

25th: 39,500 mi Median: 58,449 mi 75th: 81,750 mi

UNKNOWN OR OTHER 28 complaints

25th: 65,000 mi Median: 74,000 mi 75th: 97,000 mi

ELECTRICAL SYSTEM 24 complaints

25th: 5,000 mi Median: 35,000 mi 75th: 65,000 mi

POWER TRAIN 16 complaints

25th: 79,000 mi Median: 98,000 mi 75th: 100,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 59 TX: 43 FL: 28 GA: 24 NY: 22 IL: 14 PA: 13 NC: 11 OH: 10 CT: 10

Who Files Complaints?

2.7%

Original Owners

97.3%

Second+ Owners

Toyota Sienna — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1998	352	97,375	LATCHES/LOCKS/LINKAGES:DOORS:LATCH	23
1999	250	91,000	STRUCTURE:BODY:DOOR	17
2000	459	82,300	POWER TRAIN:AUTOMATIC TRANSMISSION	28
2001	237	60,000	STRUCTURE:BODY:DOOR	15
2002	225	70,315	LATCHES/LOCKS/LINKAGES	16
2003	124	51,329	VEHICLE SPEED CONTROL	14
2004	2588	77,000	STRUCTURE:BODY:DOOR	56
2005	1418	69,512	STRUCTURE:BODY	47
2006	1284	72,000	AIR BAGS	56
2007	448	69,701	STRUCTURE:BODY	38
2008	570	79,000	STRUCTURE:BODY	49
2009	270	80,000	STRUCTURE:BODY	35
2010	226	69,000	STRUCTURE:BODY	16
2011	806	53,000	AIR BAGS	49
2013	223	49,900	STRUCTURE:BODY	8
2014	205	50,000	STRUCTURE:BODY	8
2015	281	30,000	STRUCTURE:BODY	21
2016	98	18,000	STRUCTURE:BODY	10
2017	190	20,997	POWER TRAIN	23
2018	84	16,000	POWER TRAIN	5
2019	56	12,000	UNKNOWN OR OTHER	3
2020	41	8,100	ELECTRICAL SYSTEM	0

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28