The 2003 Ford ZX2 has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “Rear differential noise and repeat repairs.” Ford uses the Intelligent Oil-Life Monitor (IOLM) to determine when oil changes are due based on actual driving load — not just mileage. Ford's published cap is 10,000 miles or 1 year, whichever comes first. The schedule below reflects Ford's Normal service intervals; F-Series trucks and Super Duty have additional towing-specific items.
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 2003 Ford ZX2.
POWER TRAIN
4 NHTSA complaints · 2005-07 → 2007-05
“MY 2003 FORD EXPEDITION IS NOW ON ITS 4TH REAR DIFFERENTIAL IN 8 MONTHS”
“NO ACCIDENT, EXPENSE REPAIR $1000.00 TO REAR DIFFERENTIAL OF 2003 FORD EXPLORER”
“ALSO I'VE HAD REAR END WORK DONE MORE THAN TWICE AND ITS STARTING TO HOWL ONCE AGAIN”
SERVICE BRAKES, HYDRAULIC
4 NHTSA complaints · 2005-05 → 2006-11
“KINKED AND CRIMPED VACUUM BRAKE HOSE CAUSING THE BRAKES TO GO HARD AS A ROCK, LOSING CONTROL OF THE CAR UPON BRAKING AND 2 ACCIDENTS”
“WHEN MOVING A SLOW SPEED (10MPH TO 15MPH) A SMALL SUDDEN TAP OF THE BREAKS AND THE BRAKE SOMETIMES WILL GO DOWN FARTHER THAN MY FOOT”
“MY 2003 FORD FOCUS ZX3 WAS TAKEN IN TO THE DEALERSHIP FOR ITS 20,000 MILE SERVICE AND THE TECHNICIAN SAID THE FRONT BRAKE PADS AND ROTORS HAD TO BE REPLACED”
ENGINE AND ENGINE COOLING
4 NHTSA complaints · 2004-07 → 2006-11
“I HAVE A 2003 FORD ZX2 THAT HAS HAD A SEVERE IDLE VIBRATION FOR NEARLY ONE YEAR THAT FORD IS REFUSING TO FIX”
“DT: THE CALLER SAYS VEHICLE VIBRATES WHEN IT IS IN IDLE”
“VEHICLE SEVERELY VIBRATED WHILE IN MOTION AT 70 MPH, AND IN NON MOTION”
ELECTRICAL SYSTEM
3 NHTSA complaints · 2005-06 → 2008-01
“THE IGNITION SWITCH IN MY FORD FOCUS ZX3 (2003) HAS BEEN REPLACED TWICE”
“I PURCHASED MY 2003 FORD FOCUS IN 2005 AND EVER SINCE THE IGNITION SWITCH GETS STUCK BUT IT HAS GOT STUCK OVER THE LAST THREE YEARS”
TIRES
3 NHTSA complaints · 2004-12 → 2007-09
“WHILE DRIVING ON THE INTERSTATE AT 70 MPH, THE LEFT FRONT TIRE SEPARATED”
“WHILE DRIVING 2003, FORD, ESCAPE WITH 13.970 MILE WITH GENERAL AMERI - TRAC, 225/70R15 PASSENGER REAR TIRE THREAD SEPARATED FROM TIRE, CAUSING DAMAGE TO UNDER CARRIAGE AND BUMPER”
POWER TRAIN
7 NHTSA complaints · 2003-04 → 2010-11
“WHILE DRIVING 20 MPH, THE VEHICLE STALLED IN THE MIDDLE OF THE ROAD. IT WOULD NOT MOVE IN REVERSE OR FORWARD”
“WHILE DRIVING IN A NICE ASPHALTED ROAD UP A HILL, I FELT LIKE THE TRANSMISSION SUDDENLY STARTED TO SLIP. THE VEHICLE LOST FORWARD MOMENTUM SO I LOOKED FOR A SAFE PLACE TO MAKE AN EMERGENCY STOP”
“WHEN THE CAR IS PUT INTO REVERSE IT DOES NOT WANT TO MOVE. IF YOU INCREASE THE RPM'S, IT STILL JUST SETS THERE”
ELECTRICAL SYSTEM
3 NHTSA complaints · 2005-06 → 2007-08
“I HEARD CNN'S REPORT ON FORD'S THAT COULD HAVE A PROBLEM WITH FIRE DUE TO A HOT WIRED CRUISE CONTROL ON MANY FORDS”
“MY 2003 FORD EXPLORER IS EXPERIENCING SIMILAR SYMPTOMS REPORTED BY OTHER FIRE VICTIMS: CRUISE CONTROL TOTALLY INOPERATIVE, PERSISTENT ABS ALERTS, "LOW OIL PRESSURE" ALERTS (SOMETIMES JUST DAYS AFTER AN OIL CHANGE), AND STEERING ISSUES”
AIR BAGS
3 NHTSA complaints · 2004-08 → 2006-06
“THE OTHER DAY I WAS DRIVING MY 2003 FORD ZX2 AND MY AIR BAGS WENT OFF, LEAVING WITH ARM SCRAPES, BROKEN WINDSHIELD”
“THE PASSENGER SIDE AIRBAG DEPLOYED FOR ASOLUTELY NO REASON WHATSOEVER”
“WHILE DRIVING AT 25 MPH CONSUMER'S VEHICLE REAR ENDED ANOTHER VEHICLE, AND THE AIR BAGS DID NOT DEPLOY”
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 synthetic-blend or full-synthetic Motorcraft oil per the IOLM, or every 7,500-10,000 miles. EcoBoost engines require full synthetic; Coyote 5.0L V8 specifies SAE 5W-30.
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 10,000 miles, or with every other oil change. F-150 4x4 owners should rotate every 5,000-7,500 miles to even out drivetrain bias wear.
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 brake fluid level every 10,000 miles. Front pads on F-150 and Explorer typically last 40,000-60,000 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.
Ford specifies brake fluid replacement on an inspection basis, but moisture testing every 3 years is recommended. Replace if reading exceeds 3% water content.
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 the engine air filter every 30,000 miles. EcoBoost turbocharged engines are sensitive to airflow restriction — don't extend.
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.
Ford 6R80, 10R80, and 8F transmissions use Mercon LV fluid rated 150,000 miles under normal service. Severe service (towing, plowing) drops this to 60,000 miles.
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.
On 4x4 models, replace transfer case fluid every 60,000 miles. Use Motorcraft XL-12 — do not substitute generic transfer case fluid.
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.
F-Series and Expedition: replace rear axle fluid every 100,000 miles, or 50,000 miles if towing. Limited-slip rear ends require friction-modifier additive.
Estimated cost — typical U.S. ranges
Dealer
~$150–$195
Shop
~$105–$135
DIY
~$20–$50
Drain plug + fill plug — straightforward DIY. AWD vehicles have two; budget for both.
Iridium spark plugs on Coyote 5.0L, EcoBoost 2.7L/3.5L, and 2.3L are rated 100,000 miles. EcoBoost engines: never exceed the interval — gap erosion causes coil failure.
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.
Motorcraft Orange (Dex-Cool compatible) coolant: first change at 100,000 miles, then every 50,000. Older trucks with Yellow Motorcraft coolant: 50,000 miles throughout.
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.
Extends the life of your vehicle and improves comfort
Replace the cabin air filter every 20,000 miles. On F-150, located behind the glove box; on Escape and Explorer, accessed from the passenger footwell.
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.
Occupant deaths in fatal crashes (FARS)
44 crashes 1990–2024
How the 44 occupant deaths break down
34
driver deaths
8
passenger deaths
2
not recorded by seat
44
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.
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.
3
complaints mentioning a crash
2
complaints mentioning a fire
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 Ford ZX2 reflects Ford's published service intervals and the Intelligent Oil-Life Monitor 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.