"How reliable is the 2021 Toyota Avalon?"

"Based on 28 NHTSA complaints, the 2021 Toyota Avalon has a median complaint mileage of 2500 miles. The most common issue is AIR BAGS."

"What are common problems with the 2021 Toyota Avalon?"

"The most frequently reported component in NHTSA complaints for the 2021 Toyota Avalon is AIR BAGS, accounting for a significant portion of the 28 total complaints filed."

2021 Toyota Avalon: Reliability Data

Source: NHTSA — 28 complaints

Total Complaints

2,500mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

800 25th Percentile

2,500 Median Mileage

5,625 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

ENGINE

VEHICLE SPEED CONTROL

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

SERVICE BRAKES

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

POWER TRAIN:AUTOMATIC TRANSMISSION

TIRES

SEAT BELTS

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"ON EVERY AVALON 2021 I HAVE DRIVEN OR THE DEALERSHIP HAS DRIVEN THERE IS A THUNK WHEN BRAKING. EVERY CAR EVERY TIME. A TECH CASE WAS OPENED AT WESLEY CHAPEL TOYOTA AND TOYOTA OF TAMPA BAY 01- 21-2021 NEW CAR WAS PURCHASED 01-13-2021"

"The Rear Cross Traffic Warning signal is installed behind rear head rest, which muffles the alert sound to barely audible, even when setting is on high. Vanandergriff Toyota dealership in Arlington, Tx., verified this information to me after bringing my car in four times for service because I was ..."

"The contact owns a 2021 Toyota Avalon HV. The contact stated that while driving, all the instrument control panel lights were illuminated. The vehicle was taken to the local dealer eight or nine times where it was diagnosed there was moisture in the brakes, the brake assembly, sensor harness, sens..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28