2004 Toyota Avalon problems & reliability
205 owner complaints filed with NHTSA for the 2004 Toyota Avalon, alongside 3 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
13 complaints report injuries (17 injured, 2 deaths reported).
Federal crash records (FARS 2020–2023): 2004 Toyota Avalon vehicles were involved in 35 fatal crashes with 28 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Air Bags → | 127 | 62% |
| Steering → | 28 | 14% |
| Vehicle Speed Control → | 25 | 12% |
| Electrical System → | 11 | 5% |
| Seat Belts | 7 | 3% |
| Engine and Engine Cooling | 5 | 2% |
| Fuel System, Gasoline | 4 | 2% |
| Power Train | 4 | 2% |
| Service Brakes, Hydraulic | 4 | 2% |
| Structure | 4 | 2% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 68,886 miles (middle 50% between 36,770 and 110,661 miles), based on 112 complaints that included mileage.
Complaints by incident year
What owners report
“Car makes a very, very loud screeching sound when started with a/c or heating on (but more commonly with a/c). The sound will sometimes die down or stop once a/c is turned off, but not always. Puddles can trigger the sound as well. Sound can be heard mainly upon inital startup but can occur after car is in motion.”
Power Train · filed Mar 12, 2021
“I've noticed that sometimes I smell something burning, electrical, coolant or something. My mechanics finds no leaks, but I checked once and the coolant reservoir was empty, find no leaks. Somehow, the passenger side rear mud flap came off and the trunk lid doesn't line up. It always looks like it's partially opened…”
Engine · filed Feb 17, 2021
“The ecu itself is not working, which they are supposed to never stop working. Well ours stopped working and the licensed mechanic will not work on it if it is recalled. We are literally waiting on toyota to fix our car. They have not done so. The hole ecu not just part of it.”
Electrical System · filed Jul 18, 2019
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
126 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2004 Toyota Avalon. The 10 most recent:
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from…
T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal…
T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow…
T-SB-0061-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 5, 2024
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can…
T-SB-0062-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 3, 2024
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
T-SB-0039-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from…
T-SB-0038-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal…
T-SB-0035-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
T-SB-0039-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from…
T-SB-0038-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 12, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2004 Toyota Avalon has 3 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2004 Toyota Avalon?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 68,886 miles — budget accordingly if the car is approaching that mileage.