2021 Toyota Avalon Electrical system Problems
- Complaints
- 1about this part
- Share
- 5%of 21 total for the year
- Median mileage
- 800miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2021 Toyota Avalon, 5% of the 21 complaints for this model year. Where a mileage was given, the median is 800 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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, sensor in the grill, gear shifter, and hybrid sensor needed to be replaced. The vehicle was repaired. However, failure recurred. The contact stated that while driving the instrument panel, warning lights illuminated, and the hybrid system overheated. The pull over somewhere safe message was displayed. …”
NHTSA complaint #11456819, filed 2022-03, 800 milesRelated service bulletins
- 11028726Jan 30, 2026OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
- 11028722Jan 28, 2026Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map…
- 11020670Jun 25, 2025Some 2021 – 2022 model year Avalon, 2018 – 2024 Camry, 2019 – 2025 model year Corolla, 2022 – 2025 model year Corolla Cross, and 2019 – 2025 model year RAV4 vehicles with…
- 11020657Jun 13, 2025The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service…
- 11019332Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on…
- 11018329Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on…
- 11016786Feb 11, 2025Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map…
- 11015500Feb 11, 2025Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map…
- 11016781Feb 10, 2025The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys…
- 11015495Feb 10, 2025The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 1 | 13% |
| 2021 | 1 | 5% |
| 2019 | 17 | 24% |
| 2018 | 1 | 4% |
| 2017 | 2 | 14% |
| 2016 | 3 | 13% |
| 2015 | 4 | 10% |
| 2014 | 11 | 11% |
| 2013 | 14 | 10% |
| 2012 | 4 | 13% |
| 2011 | 25 | 24% |
| 2010 | 3 | 7% |
| 2009 | 11 | 12% |
| 2008 | 44 | 13% |
| 2007 | 17 | 7% |
| 2006 | 16 | 4% |
| 2005 | 17 | 7% |
| 2004 | 11 | 5% |
| 2003 | 18 | 6% |
| 2002 | 6 | 5% |
| 2001 | 14 | 10% |
| 2000 | 11 | 6% |
| 1999 | 6 | 7% |
| 1998 | 19 | 11% |
| 1997 | 4 | 3% |
| 1996 | 7 | 6% |
| 1995 | 8 | 10% |
Other parts of the 2021 Toyota Avalon
12 complaintsEngine
4 complaintsVehicle speed control
3 complaintsBrakes
2 complaintsForward collision avoidance
2 complaintsBack-over prevention (rear camera)
1 complaintsSeat belts
1 complaintsTires
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2021 Toyota Avalon
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology