My HiCas light keeps coming on when i travel on a lonh striaght, is this a major problem and how can it be fixed or does it really matter ?
Mine comes on randomly as well some times. Also the rev counter occasionally has a fit and jumps about for 10 seconds then stops, never bothered me but just wondered how this is fixed?
Next time it occurs, switch off and re-start the car to see if you get another approx 20 minutes of driving before it happens again.
If so the steering angle sensor needs to be set correctly.
The car thinks it's turning a huge circle when in fact it's going straight. The HICAS computer will throw a fault after approx 20 minutes of this.
Not seen when driving around town as you're constantly altering the steering, but on a straight freeway it's not happy.
Mostly the fault of an aftermarket wheel/boss kit not set up to the steering angle sensor correctly.