The 2001 Mazda Millenia has no open NHTSA recalls. Owners report 6 recurring issue clusters, led by “Check engine light remaining lit after repairs.” Mazda's Skyactiv engines use unusually high compression ratios (13:1 to 16:1) and require strict adherence to oil intervals — extending oil life on a Skyactiv engine accelerates carbon buildup on intake valves. Mazda's published Schedule 1 (severe) covers most US driving conditions.
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.
What drivers and federal regulators have officially reported about the 2001 Mazda Millenia.
ENGINE AND ENGINE COOLING
5 NHTSA complaints · 2004-11 → 2010-12
“REPAIRS DO NOT FIX ISSUE AND CHECK ENGINE LIGHT REMAINS LIT; NO CAR REPAIR SHOP OR MAZDA DEALER HAS BEEN ABLE TO FIX PROBLEM”
“2001 MILLENIA S ENGINE LIGHT WENT ON. MECHANIC HAD TO REPLACE AN ENGINE CYLINDER AND ALL PLUGS”
“CHECK ENGINE LIGHT APPEARED ON THE DASHBOARD AND REMAINED ON”
POWER TRAIN
4 NHTSA complaints · 2004-08 → 2006-07
“2001 MAZDA MILLENIA WOULD NOT SHIFT OUT OF FIRST GEAR AND WOULD STOP ABRUPTLY”
“CONSUMER STATED THAT TRANSMISSION FAILED. CONSUMER HAD THREE TRANSMISSIONS REPLACED, AND CURRENTLY WILL HAVE THE FOURTH TRANSMISSION REPLACED”
“WHEN I DID, THE CAR KEPT GOING IN REVERSE. I PUT THE CAR IN NEUTRAL, PARK, 2ND AND OVERDRIVE ALL WHICH THE CAR KEPT GOING IN REVERSE”
WHEELS
2 NHTSA complaints · 2004-10 → 2006-04
“FOR THE PAST TWO YEARS, THE INSIDE OF THE 17" LOW PROFILE WHEELS OF MY 2001 MAZDA MILLENIA S HAVE CORRODED AND ALL FOUR TIRES LOSE MOST OF THEIR AIR”
“THE CONTACT STATED THE CHROME ON THE WHEELS FLAKES OFF, CAUSING THE TIRE BEAD TO BREAK. THIS RESULTS IN LOSS OF TIRE PRESSURE”
STEERING
2 NHTSA complaints · 2005-08 → 2005-08
“THE TILT-STEERING MOTOR FAILED, LEAVING THE STEERING WHEEL LOCKED IN THE EXTREME-UP ("BUS-DRIVER") POSITION”
“NINE MONTHS AFTER THE POWER STEERING WHEEL TILT MOTOR FAILED, I AGAIN EXPERIENCED THE SAME FAILURE, LEAVING THE STEERING WHEEL LOCKED IN THE EXTREME-UP ("BUS-DRIVER") POSITION”
VISIBILITY
2 NHTSA complaints · 2002-04 → 2002-09
“IN BRIGHT SUNLIGHT THE GLARE OFF THE REAR WINDOW DOES NOT ALLOW CONSUMER TO SEE OUT OF IT, MASKING VISIBILITY”
“WHILE LOOKING FOR CLEARANCE IN THE REAR VIEW MIRRIOR, THE ONLY THING VISIBLE WAS THE REAR WINDOW SHELF”
POWER TRAIN, VEHICLE SPEED CONTROL
3 NHTSA complaints · 2001-11 → 2020-02
“WHILE PARKED AND IDLING, VEHICLE SUDDENLY ACCELERATED AND INADVERTENTLY JUMPED OUT OF GEAR AND FORCED VEHICLE FORWARD INTO A PALM TREE BEFORE STOPPING”
“WHEN THE FOOT WAS REMOVED FROM THE BRAKE PETAL, THE CAR LURCHED FORWARD AT FULL THROTTLE. MY FOOT NEVER TOUCHED THE GAS PEDAL”
“WHILE DRIVING 5 MPH OR GREATER, THE VEHICLE WOULD SURGE FORWARD WITHOUT WARNING”
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.
Critical for safety and preventing major damage
Replace 0W-20 full-synthetic oil every 5,000 miles under Schedule 1. Schedule 2 (highway-only): 7,500 miles. Turbo engines: 5,000 miles regardless of schedule.
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.
Rotate tires every 7,500 miles; every 5,000 on AWD models, where the front-biased coupling wears tires unevenly.
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.
Inspect brake pads, rotors, and parking brake at every oil change. Front pads typically last 35,000-50,000 miles.
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.
Replace DOT 3 brake fluid every 30,000 miles or 36 months.
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.
Keeps your vehicle running smoothly and efficiently
Replace engine air filter every 30,000 miles. Skyactiv-G direct injection is sensitive to airflow restriction — inspect at every oil change.
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.
Replace ATF every 60,000 miles severe / 100,000 normal. Use Mazda FZ ATF — substitutes cause harsh 1-2 shifts and torque converter shudder.
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.
Iridium spark plugs every 60,000 miles on Skyactiv-G 2.0L and 2.5L; 45,000 miles on the 2.5L Turbo.
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.
Mazda FL-22 (yellow): first change at 120,000 miles or 10 years, then every 60,000. Do not substitute — silicate-free formula prevents water pump damage on Skyactiv engines.
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.
On AWD models, replace transfer case fluid and rear differential fluid every 60,000 miles.
Estimated cost — typical U.S. ranges
Dealer
~$105–$140
Shop
~$75–$100
DIY
~$15–$40
AWD/4WD vehicles only. Easy drain-and-fill on most platforms.
Extends the life of your vehicle and improves comfort
Replace cabin air filter every 15,000 miles. On most models it sits behind the glove box.
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.
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 2001 Mazda Millenia reflects Mazda's published service intervals. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.