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2003 Toyota Highlander Recalls, Problems & Maintenance

The 2003 Toyota Highlander has no open NHTSA recalls. Owners report 6 recurring issue clusters, led by “Cylinder head bolt stripping and coolant leak.” 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 Highlander.

Reported to NHTSA

Cylinder head bolt stripping and coolant leak

ENGINE AND ENGINE COOLING

70 NHTSA complaints · 2009-04 → 2019-10

“2003 TOYOTA HIGHLANDER 4 CYL. SERVICE BULLITON FROM THEM #310436. HEAD BOLTS COMING UNDONE INSIDE MOTOR CAUSING CATASTROPHIC FAILURE OF MOTOR. BOLTS NOT HOLDING DOWN MFGR KNOWS ABOUT THIS. WAS A MANUFACTURING PROCESS THAT DID NOT WORK”
— Owner report, NHTSA ODI #11270240
“I HAVE A 2003 TOYOTA HIGHLANDER WITH A @AZFE MOTOR IN IT. THERE IS A MAJOR PROBLEM WITH THESE MOTORS STRIPPING OUT THE HEADBOLTSIN THE BACK OF THE MOTOR. I AM NOW IN A PREDICAMENT AS I HAVE TO GET A BLOCK WHEN I KNOW IT WILL MESS UP AGAIN AND TOYOTA HAS AS OF YET TO DO ANYTHING”
— Owner report, NHTSA ODI #10275428
“TL* THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE VEHICLE OVERHEATED. THE VEHICLE WAS TOWED TO THE DEALER FOR INSPECTION AND THEY STATED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED BUT PROVIDED NO”
— Owner report, NHTSA ODI #10499231

Read all complaints on NHTSA →

Driver-side sun visor drooping while driving

VISIBILITY

19 NHTSA complaints · 2009-05 → 2013-06

“TOYOTA HIGHLANDER VISOR DEFECT. FALLS DOWN WHILE DRIVING AND BLOCKS VIEW, REPLACEMENT COST IS $700. SHOULD BE RECALLED DUE TO DANGEROUS VISION OBSTRUCTION”
— Owner report, NHTSA ODI #10420140
“TL* THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. THE CONTACT STATED THAT WHILE DRIVING 30 MPH, THE SUN VISOR FAILED. THE CONTACT STATED THAT HE PUT THE VISOR UP BUT IT FELL SEVERAL TIMES. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR INSPECTION”
— Owner report, NHTSA ODI #10515525
“DRIVER SIDE SUN VISOR WILL NOT STAY IN PLACE. FLOPS DOWN TO OBSCURE VISION”
— Owner report, NHTSA ODI #10322882

Read all complaints on NHTSA →

Driver seat belt webbing fraying

SEAT BELTS

4 NHTSA complaints · 2008-05 → 2017-10

“DRIVERS SIDE SEAT BELT NYLON WEBBING (ACTUAL BELT PORTION) HAS STARTED TO SEVERELY UNRAVEL IN SEVERAL DIFFERENT PLACES. I FEEL THIS IS A FACTORY DEFECT IN MATERIALS; HOWEVER, LOCAL DEALERSHIP WHERE VEHICLE WAS PURCHASED INFORMS ME THAT IT WILL COST ME $270 TO REPLACE THIS BELT”
— Owner report, NHTSA ODI #10622392
“UNUSUAL FRAYING OF DRIVERS SEAT BELT DUE TO DESIGN PROBLEM WITH STITCHING OF BELT MATERIAL. BEGAN TO UNRAVEL AND RUN ALONGSIDE APPROX 18" OF BELT LENGTH. THIS CAUSED BELT TO BIND AND SNAG ON BUCKLE FURTHER EXACERBATING PROBLEM”
— Owner report, NHTSA ODI #10439029
“I OWN A 2003 TOYOTA HIGHLANDER PURCHASED NOVEMBER, 2002 WITH CURRENT MILEAGE 49,570. I JUST NOTICED THAT THE STRAP PORTION OF THE SEAT BELT ON THE DRIVER'S SEAT IS SHREDDING TO FINE THREADS PREMATURELY AND QUICKLY DETERIORATING DUE TO UNKNOWN REASON”
— Owner report, NHTSA ODI #10229245

Read all complaints on NHTSA →

Rear brake light failure

ELECTRICAL SYSTEM, EXTERIOR LIGHTING, SERVICE BRAKES

13 NHTSA complaints · 2010-06 → 2014-11

“DRIVER SIDE REAR BRAKE LIGHTS WILL NOT ILLUMINATE EVEN WHEN YOU DEPRESS YOUR BRAKES EVEN AFTER YOU REPLACE BULB AND LIGHT SOCKET. RIGHT SIDE REAR IS OK. I HAVE LOOKED ONLINE AND IT APPEARS OTHER 2003-2006 HIGHLANDERS ARE HAVING SIMILAR ISSUES”
— Owner report, NHTSA ODI #10661001
“THE REAR RIGHT BRAKE LIGHT STOPPED BRIGHTENING UPON HITTING THE BRAKES AT FIRST. THEN A FEW MONTHS LATER, NEITHER BRAKE LIGHT IS LIGHTING UP AT ALL. I ALSO WITNESSED THE SAME ISSUE OCCUR ON ANOTHER 2003 TOYOTA HIGHLANDER WHILE STOPPED IN TRAFFIC”
— Owner report, NHTSA ODI #10559714
“BRAKE LIGHT BULB BURNS OUT PERIODICALLY”
— Owner report, NHTSA ODI #10416132

Read all complaints on NHTSA →

Unintended acceleration and stuck throttle

VEHICLE SPEED CONTROL

26 NHTSA complaints · 2009-11 → 2018-10

“TL* THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. WHILE DRIVING 20 MPH, THE VEHICLE UNINTENTIONALLY ACCELERATED AT HIGH SPEEDS WITHOUT WARNING. THE CONTACT WAS ABLE TO BRING THE VEHICLE TO A COMPLETE STOP AND TURN OFF THE ENGINE”
— Owner report, NHTSA ODI #11133071
“TL* THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. WHILE ATTEMPTING A RIGHT TURN AT APPROXIMATELY 5 MPH, THE VEHICLE ABNORMALLY ACCELERATED AND CRASHED INTO ANOTHER VEHICLE. THERE WERE NO INJURIES. A POLICE REPORT WAS AVAILABLE”
— Owner report, NHTSA ODI #10346109
“THROTTLE STUCK OPEN AND CONTINUED TO ACCELERATE ON MY 2003 TOYOTA HIGHLANDER LIMITED WHILE DRIVING NORTH ON RT 4 IN CALVERT COUNTY, MD. IT WAS NECESSARY TO WEAVE IN AND OUT OF TRAFFIC UNTIL I COULD SAFELY GET OFF ROAD”
— Owner report, NHTSA ODI #10290978

Read all complaints on NHTSA →

Air bags failed to deploy in crash

AIR BAGS

6 NHTSA complaints · 2016-12 → 2019-10

“HEAD ON COLLISION AIR BAGS DID NOT DEPLOY SPEEDS 25-40 MPH”
— Owner report, NHTSA ODI #11268617
“I WAS IN MOTION WHEN WE HIT A COW GOING 45MPH THAT JUMPED OUT AT MY HUSBAND AND I MY AIR BAGS DID NOT DEPLOY THE CAR IS TOTALED WAS CITY STREET”
— Owner report, NHTSA ODI #11258297
“DURING A WRECK AIRBAGS DID NOT DEPLOY WHEN I HIT AN UNMARKED UTILITY POLE IN THE ROADWAY OF A PARKING LOT EXIT”
— Owner report, NHTSA ODI #10936022

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)

110 crashes 1990–2024

How the 110 occupant deaths break down

80

driver deaths

30

passenger deaths

110

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2003 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.

34

complaints mentioning a crash

1

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 Highlander 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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