Electrical System Related Problems of the 2018 Toyota Sienna

Table 1 shows two common electrical system related problems of the 2018 Toyota Sienna. The number one most common problem is related to the electrical system (five problems). The second most common problem is related to the instrument panel speedometer/odometer (one problem).

Table 1. Electrical System related problems of Toyota Sienna


Recently reported Electrical System problems of the 2018 Toyota Sienna

The Electrical System problem

I am an owner of a 2018 Toyota Sienna le. The vehicle has an issue with the safety connect system. Dealer first states that the cause is the data handling being off, called Toyota turned it on and waited for a few days and still did not work.   Read details...

The Instrument Panel Speedometer/odometer problem

Odometer fraud. The contact purchased a 2018 Toyota Sienna. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale.   Read details...


Electrical System related problems in other Toyota Sienna model year vehicles:



Sienna Service Bulletins
Sienna Safety Recalls
Sienna Defect Investigations