Problems · NHTSA complaints
2004 Lincoln Aviator problems
Owners filed 81 complaints about the 2004 Lincoln Aviator with NHTSA between Feb 2004 and Nov 2019. The most-cited component is power train (21).
Complaints
81
Filed with NHTSA
Crashes
2
Reported by owners
Fires
1
Reported by owners
Injuries
3
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Power train21
- Structure15
- Engine and engine cooling15
- Electrical system8
- Air bags7
- Steering6
- Visibility6
- Engine5
- Suspension5
- Exterior lighting3
- Equipment3
- Service brakes, hydraulic3
- Wheels2
- Seats2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
8
5
2
4
6
5
17
10
2
6
5
3
1
3
0
4
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2004 | 8 |
| 2005 | 5 |
| 2006 | 2 |
| 2007 | 4 |
| 2008 | 6 |
| 2009 | 5 |
| 2010 | 17 |
| 2011 | 10 |
| 2012 | 2 |
| 2013 | 6 |
| 2014 | 5 |
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 0 |
| 2019 | 4 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Power train
21 reports
“THE VEHICLE DOWN SHIFT WHEN TURNING INTO THE FIRST AS IT GOES INTO SECOND MAKES IN AWFUL NOISE. WHEN I PARKED IT AND TRIED TO START IT AND IT WAS DEAD.THE MECHANIC FIGURE IT HAD SOMETHING TO DO WITH THE STARTER HE GOT UNDER THE VEHICLE TO APPLIED STARTER TOLD ME TO START IT AND IT DID AND IT PINNED HIM UNDER THE VEHICLE.THEY LATER SAID THE BELT HAD POPPED. THE VEHICLE HAD BEN LEAKING A LITE FLUID THEY BELIEVED IT TO BE THE DIFFERENTIAL OIL. ITS A FOUR WHEEL DRIVE. I HAD IT TOWED TO BOHN FORD 6/5/17THEY ARE CHARGING 350.00 TO REPLACE THE BELT.CITY ST. LATER PARK IT AT WALMART PARKING LOT WHERE THE PEOPLE HELPED PUSH THE VEHICLE OFF THE MECHANIC.THE VEHICLE WOULD ROLL BACK WHEN PUT IN DRIVE.”
Structure
15 reports
“I WAS DRIVING EAST ON THE 202 FWY IN PHOENIX AT A SPEED BETWEEN 65-68 MPH WHEN I HEARD A LOUD BANG AND BOTH SIDE AIR CURTAINS DEPLOYED. TIME: 9:30 P.M. FEB. 20, 2015. *TR”
Engine and engine cooling
15 reports
“MY LINCOLN AVIATOR STARTED MAKING A HORRIBLE NOISE IN THE REAR OF THE VEHICLE ON THE MORNING OF SEPTEMBER 4, 2011. MY WIFE TOOK THE AVIATOR TO THE AAA CAR CARE CENTER TO FIND AND REPAIR THE ISSUE. THE AAA CERTIFIED TECHNICIAN PLACED THE AVIATOR ON THE LIFT AND DISCOVERED THE ENTIRE DIFFERENTIAL UNIT WAS HANGING FREELY AND LITERALLY SWINGING UNDER THE VEHICLE. AFTER FURTHER INSPECTION, THE WELDING THAT HOLDS THE MOUNT TO WHICH THE DIFFERENTIAL UNTIL IS BOLTED, BROKE FROM THE FRAME. THIS ISSUE OF A DIFFERENTIAL MOUNT WELD BREAKING FREE HAS NEVER BEEN SEEN BY THE AAA CERTIFIED TECHNICIAN OR THE AAA SERVICE MANAGER WITH OVER 30 YEARS OF EXPERIENCE. FURTHERMORE, THE MOUNT WAS ONLY WELDED ON ONE SIDE (SIDE CLOSEST TO THE REAR OF THE VEHICLE). I VISITED THE LOCAL LINCOLN DEALERSHIP AND EXPLAINED THE ISSUE WITH MY AVIATOR?S DIFFERENTIAL MOUNT ONLY BEING WELDED ON ONE SIDE AND ASKED TO SEE AN AVIATOR OR EXPLORER THAT WOULD HAVE THE SAME DIFFERENTIAL MOUNTING SYSTEM. THIS LINCOLN DEALERSHIP HAD AN EXPLORER UP ON THE LIFT AND SHOWED ME THAT THE DIFFERENTIAL MOUNT ON ALL AVIATORS AND EXPLORERS DO INDEED HAVE THE DIFFERENTIAL MOUNT WELDED ON BOTH SIDES TO THE FRAME. THE…”
Electrical system
8 reports
“MY SUV MISFIRES, SLIPS IN AND OUT OF GEARS, STALLS AT STOP SIGNS AND LIGHTS, ACCELERATES AT STOP LIGHTS. OCCASIONALLY WHEN THE AC IS TURNED ON, THERE IS A VERY LOUD CLUNK SOUND.”
Air bags
7 reports2 crashes1 fire
“TL* THE CONTACT OWNS A 2004 LINCOLN AVIATOR. WHILE DRIVING APPROXIMATELY 60 MPH, THE AIR BAGS DEPLOYED INADVERTENTLY. THERE WAS NO CRASH INVOLVED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THEY DIAGNOSED THAT THERE WAS A CRASH DETECTION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 59,000.”
Steering
6 reports
“I HAD JUST GOTTEN ONTO THE HIGHWAY,AT ABOUT 40 MPH THE REAR WHEELS STARTED TO SKIP AND JERK ALSO THERE WAS A LOUD CLUCK FROM UNDER THE FRONT....THE MECHANIC FOUND THE TRANSFER CASE WAS DAMAGED DUE TO CHEAP FORD PARTS..... *TR”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.