2010 Toyota Avalon Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2010 Toyota Avalon

2010 Toyota Avalon Problems

Misfire and/or Check Engine Light Due to Failed Ignition Coil

On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.

Rear Window Sunshade Fails and Makes Grinding Noise

The motor for the rear window sunshade in the Toyota Avalon is known to fail. When this occurs, the sunshade will not extend down the window, and a grinding noise is heard until the motor fails as well. 

Replacement of the sunshade assembly is necessary to correct this failure, however, removing the fuse for the sunshade will stop the motor from making the irritating grinding noise. 

Massive Oil Leak and Loss of Oil Pressure

The VVT-i oil line is known to burst. This is a very large leak which covers the ground, engine, and undercarriage.

If the oil line ruptures while driving, the low engine oil message and engine oil pressure warnings will illuminate. Continued use after these warnings will result in complete engine failure due to oil starvation.

The line is known to be defective, and a revised part has been issued by Toyota, however, this revised part is known for the same issue.

To repair the issue, the line must be replaced, and the engine bay and undercarriage must be cleaned thoroughly.

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2010 Toyota Avalon Recalls

Seat Heater Wiring Shorts And Causes Fire

For vehicles equipped with aftermarket accessory seat heaters, the seat heater elements may short circuit when the seat cushion is compressed, and result in a fire hazard. Dealers will disconnect the seat heaters and refund the purchase price of the seat heaters free of charge to resolve the concern,

Seat Heater

Southeast Toyota is recalling certain vehicles because the seat heater element may become damaged as a result of compression of the seat cushion. The damaged element could short causing burning of the seat cushion, increasing the risk of personal injury. Dealers will disconnect seat heaters with copper strand elements and refund the purchase price of the seat heater accessory to correct this concern.

Vehicles With Added Seat Accessories May Not Have Properly Functioning Restraint Systems

Vehicles that have had accessories added to the seats such as seat heaters, seat covers or DVD headrests may not have the occupant sensor system of the passenger seat calibrated properly. This can affect passenger air bag operation in a crash. Dealers will test the sensitivity of the occupant detection sensors and recalibrate them as necessary free of charge to resolve the concern.

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