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2003 Toyota Sienna Recalls, Problems & Maintenance

The 2003 Toyota Sienna has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “Sliding door latch and opener failure.” Toyota's owner's manual splits service into Schedule 1 (severe) and Schedule 2 (normal). Most US drivers fall under Schedule 1 because it covers short trips, extreme temperatures, dusty roads, or heavy idling. The intervals below reflect Schedule 1 — the schedule Toyota recommends for typical real-world use.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2003 Toyota Sienna.

Reported to NHTSA

Sliding door latch and opener failure

LATCHES/LOCKS/LINKAGES

25 NHTSA complaints · 2003-09 → 2012-02

“BOTH OF THE REAR DOORS IN MY TOYOTA SIENA WILL NOT OPEN FROM EITHER SIDE. TO GET OUT OF THE CAR IN AM EMERGENCY PEOPLE HAVE TO CLIMB OVER TO THE FRONT SEATS. *TR”
— Owner report, NHTSA ODI #10378746
“SLIDING DOORS ON THE 2003 TOYOTA SIENNA VAN MAY LOCK AND PROVE UNABLE TO OPEN FROM THE INSIDE OR OUTSIDE, TRAPPING OCCUPANTS.*AK”
— Owner report, NHTSA ODI #10098510
“NUMEROUS TIMES, THE BUTTON ON THE DRIVERS SIDE SLIDING DOOR HAS GOTTEN STUCK IN THE "IN" POSITION. IT WILL NOT COME BACK OUT, AND CAUSES THE DOOR NOT TO LATCH”
— Owner report, NHTSA ODI #10045374

Read all complaints on NHTSA →

Brake squeal and grinding noise

SERVICE BRAKES, HYDRAULIC

5 NHTSA complaints · 2003-05 → 2003-12

“BRAKES SQUEAK WHEN APPLIED AT LOW SPEED. DEALER FIXED IT THREE TIMES, BUT IT IS BACK AGAIN”
— Owner report, NHTSA ODI #10049702
“WHEN APPLYING BRAKES VEHICLE WILL SQUEAL AND MOAN. DEALER HAS INSPECTED VEHICLE AND COULD NOT DUPLICATE OR CORRECT THE PROBLEM”
— Owner report, NHTSA ODI #10022772
“WHEN BRAKING OR ACCELERATING THERE WAS A LOUD GRINDING NOISE, TOOK VEHICLE TO DEALER, DEALER SAID THAT ROTORS AND BRAKES NEEDED REPLACING”
— Owner report, NHTSA ODI #10022876

Read all complaints on NHTSA →

Rear seat belt jamming and retraction failure

SEAT BELTS

4 NHTSA complaints · 2006-02 → 2008-04

“THE SEAT BELT ON THE SECOND ROW OF THE TOYOTA SIENNA MINIVAN, BECOME INOPERATIVE UNDER NORMAL CONDITIONS. THE SEAT BELT WILL NOT RETRACT MAKING THE SEAT USELESS”
— Owner report, NHTSA ODI #10176841
“DT*: THE CONTACT STATED ALL REAR SEAT BELTS ARE JAMMED AND WILL NOT PULL OUT FOR USE”
— Owner report, NHTSA ODI #10149812
“THE LEFT 2ND ROW SEATBELT REPEATEDLY GETS TWISTED IN THE MECHANISM AND WILL NOT WORK”
— Owner report, NHTSA ODI #10225621

Read all complaints on NHTSA →

Spare tire carrier cable corrosion

STRUCTURE

3 NHTSA complaints · 2010-02 → 2015-08

“THE SPARE TIRE IN OUR 2003 SIENNA FELL OFF THE BOTTOM OF THE VAN. LUCKILY WE WERE ONLY GOING 25 MPH AND NO ONE WAS BEHIND US. IT APPEARS THE WIRE HOLDING THE TIRE RUSTED AND BROKE, CAUSING THE TIRE TO FALL. *TR”
— Owner report, NHTSA ODI #10312619
“THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER, WHERE IT WAS DIAGNOSED THAT SPARE TIRE CARRIER ASSEMBLY CABLE WAS CORRODED”
— Owner report, NHTSA ODI #10750339

Read all complaints on NHTSA →

Vehicle pulling to one side

SUSPENSION

5 NHTSA complaints · 2003-04 → 2004-10

“STEERING IS MISALIGNED BECAUSE VEHICLE PULLS EXCESSIVELY TO THE RIGHT WHILE DRIVING. DEALER HAS ATTEMPTED TO CORRECT 6 TIMES SINCE PURCHASE, BUT PROBLEM STILL EXISTS.*AK”
— Owner report, NHTSA ODI #10022073
“THE VEHICLE PULLED SEVERELY TO THE LEFT. *JB”
— Owner report, NHTSA ODI #10015704
“WHILE DRIVING, VEHICLE PULLED TO THE LEFT”
— Owner report, NHTSA ODI #10063443

Read all complaints on NHTSA →

Sudden unintended acceleration

VEHICLE SPEED CONTROL

13 NHTSA complaints · 2005-02 → 2013-01

“THE CONTACT WAS DRIVING WHEN THE VEHICLE SUDDENLY ACCELERATED. IT WENT THROUGH THE CONTACT'S GARAGE AND INTO THEIR LIVING ROOM”
— Owner report, NHTSA ODI #10381284
“WHILE I WAS FULLY STOPPED, WITH MY FOOT ON THE BRAKE, MY 2003 TOYOTA SIENNA UNEXPECTEDLY AND SUDDENLY ACCELERATED. *TR”
— Owner report, NHTSA ODI #10340434
“THE VEHICLE ACCELERATED TO 85 MPH, WHILE ON THE HIGHWAY. THE CONSUMER PASSED SEVERAL VEHICLES, CHANGING LANES, TO AVOID A COLLISION. THE CONSUMER PROCEEDED TO STRIKE A CONCRETE BARRIER”
— Owner report, NHTSA ODI #10113075

Read all complaints on NHTSA →

Brake pedal and ABS malfunction

SERVICE BRAKES, HYDRAULIC

6 NHTSA complaints · 2004-02 → 2012-07

“CONSUMER STATED WHILE TRAVELING 15-30 MPH DEPRESSED BRAKES AND PEDAL TRAVELED TO FLOORBOARD, CAUSING EXTENDED STOPPING DISTANCE”
— Owner report, NHTSA ODI #10059252
“WHILE APPLYING THE BRAKES PEDAL WENT TO THE FLOOR. A LOUD SQUEAKING NOISE WAS HEARD COMING FROM THE FRONT”
— Owner report, NHTSA ODI #10079651
“WHILE DRIVING LESS THAN 45 MPH, THE BRAKES FAILED TO RESPOND WHEN APPLIED. THE DEALER PERFORMED A DIAGNOSTIC, WHICH VERIFIED THAT THE BRAKING SYSTEM FAILED”
— Owner report, NHTSA ODI #10272965

Read all complaints on NHTSA →

Engine oil sludge

ENGINE AND ENGINE COOLING

2 NHTSA complaints · 2007-08 → 2009-07

“OUR 2003 SIENNA VAN (TOYOTA) HAS BEGUN THROWING BLUE SMOKE OUT THE EXHAUST. WE TOOK IT TO A MECHANIC THAT TOLD US THAT IT'S A VALVE,RING SLUDGE PROBLEM IN THE MOTOR”
— Owner report, NHTSA ODI #10198341
“WITHIN 100 MILES THE ENGINE FROZE, LEAVING US STRANDED ON A MAJOR INTERSTATE”
— Owner report, NHTSA ODI #10276150

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter

Every 5,000 mi

Replace 0W-20 full-synthetic oil and filter every 5,000 miles under Schedule 1, or 10,000 miles under Schedule 2. Toyota covers the first 2 oil changes through ToyotaCare.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 5,000 mi

Rotate tires every 5,000 miles. Toyota recommends rotation at every oil change to maximize tire life on FWD and AWD models.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 5,000 mi

Inspect brake pads, rotors, and parking brake every 5,000 miles. Toyota recommends measuring pad thickness at each service.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 30,000 mi

Replace DOT 3 brake fluid every 30,000 miles or 36 months. Critical for the integrity of the ABS, VSC, and brake assist systems.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Engine Air Filter

Every 30,000 mi

Replace the engine air filter every 30,000 miles. Earlier under Schedule 1 if driven on unpaved roads.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Automatic Transmission Fluid

Every 60,000 mi

Toyota labels ATF as 'lifetime fill' on most automatics, but recommends inspection and replacement every 60,000 miles under severe service. Use Toyota WS or Type-IV — no substitutes.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 120,000 mi

Toyota iridium-tipped spark plugs are rated for 120,000 miles. Earlier replacement reduces fuel economy and can cause misfires on direct-injection engines.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Super Long Life Coolant (SLLC)

Every 50,000 mi

Toyota SLLC (pink): first change at 100,000 miles, then every 50,000 miles. Do not substitute green or orange coolant — it will damage the cooling system seals.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Cabin Air Filter

Every 30,000 mi

Replace the cabin air filter every 30,000 miles, sooner in dusty climates. Located behind the glove box on most Toyota and Lexus models.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Serpentine / Drive Belt Inspection

Every 60,000 mi

Inspect the serpentine belt and tensioner every 60,000 miles. Toyota uses long-life EPDM belts that rarely fail before 100,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Timing Chain — No Replacement

On condition / lifetime

Toyota's 2AR-FE, 2GR-FKS, A25A-FKS, and most Toyota engines built since 2010 use a timing chain rated for the life of the engine. No scheduled replacement.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Pro only

Timing chains are normally lifetime. Listen for rattle on cold start — that's the actionable signal. Replacement is major work, quote separately.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

49 crashes 1990–2024

How the 49 occupant deaths break down

32

driver deaths

17

passenger deaths

49

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2002 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

13

complaints mentioning a crash

2

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2003 Toyota Sienna reflects Toyota's published service intervals and the Maintenance Required Light system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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