Table 1 shows one common electrical system related problems of the 2023 Toyota Sequoia.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
Electronic control module failed due to the cup holder failing. It is available for inspection. Safety was put at risk because the vehicle randomly slammed itself on the brakes, when in drive the vehicle was moving backwards then abruptly braking and moving forward. The problem was confirmed by the dealer. There were warning lamps for the following: drive start control malfunction, parking brake unable to disengage, hybrid system failure, check engine, parking support brake malfunction. The vehicle was showing as being in both park and drive at the same time. The dealer determined the cupholder allows water condensation to leak into the center console compartment where exposed high and low voltage wiring is contained as part of electronic modules causing the vehicle to malfunction. The vehicle was put in gear while throwing the malfunctions, however, the electronic components should not be exposed and stored within a compartment where liquids are known to be stored (cup holder) in a way that allows water to leak into them. This could happen while the vehicle is being driven and cause serious issues. This same issue happened once before several months back before the cup holder started to fail, so regardless if the cupholder is working properly, it seems water can penetrate this area of the vehicle and cause issues because there is no barrier between the electronic modules/wiring and the cup holder drip tray. The service department actually stated to me that they see this issue all the time on the Sequoias and tundras.
Able to lock car while keys are in the front cup holders. Have to close rear hatch manually. Dash button, key fob button and door button do not work. Others have been complaining about this on the internet. Driver side door has to be forced to roll up. Pull button to roll up. Goes up and then opens back up about two thirds of the way.
The pinch sensor of tailgate prevents the tailgate from closing.
My wife returned home and exited the car leaving her key inside the car. She went to open the backdoor to get our infant son out and the car had locked itself. She had to call me at work so that I could unlock the car with the app.