There are 2 stored owner reports matching the engine leading-label group for the 2019 Toyota Avalon in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)EXCESSIVE OIL CONSUMPTION - NEW VEHICLE NEWLY PURCHASED 2019 TOYOTA AVALON XLE (6 CYL) HAS EXCESSIVE OIL CONSUMPTION. REQUIRED ADDITION OF 2 QUARTS OF OIL AT 2,000 MILES. NO LEAKS EVIDENT UNDER CAR. AT 3,100 "LOW OIL" LIGHT CAME ON, BUT COULD NOT CHECK BECAUSE DEALER TAPED DIPSTICK TO PREVENT ME FROM CHECKING. DEALER TEARING APART ENGINE.
TOYOTA AVALON HYBRID WITH KEYLESS IGNITION. CAR IS SILENT BUT MAY STAY ON WHEN PARKED IN GARAGE. THERE IS NO WARNING SOUND OR LIGHT IF CAR IS LEFT ON AND CAR IS SILENT, BUT AS BATTERY DRAINS, THE ENGINE MAY COME ON 20 MIN LATER AND GENERATE CARBON MONOXIDE. I AM AN ALERT DRIVER BUT THIS HAS HAPPENED TWICE. MORE THAN 17 TOYOTA OWNERS HAVE DIED OF CARBON MONOXIDE POISONING. THIS IS AN EASY SOFTWARE FIX. TOYOTA SAYS IT WILL FIX IN 2020, BUT THERE IS NO SOFTWARE FIX COMING FOR HYBRIDS ALREADY SOLD.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 29, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.