Hi
I’ve had my rx for about 6mnths now. I recently found out there was an inverter recall outstanding on the car and so it went to the dealership. Whilst it was there, I had the battery replaced. Since getting it back a week ago, my mpg has dropped drastically (from approx 30mpg to 20mpg).
I’ve found this thread about the ISC reset and tried following the steps, but no improvement. I will try again but I have some questions so that I can be sure I am doing it right:
How far did you all drive to get the coolant temperature up? I did approx 10miles with speeds of between 40mph – 60mph for most of this. After flooring the pedal for 30-40 seconds, I put it into park, put on the parking brake and turned the car off. Is this right or should I leave my foot on the brake pedal until the procedure is complete? Lemon refers to an arrow from the engine to the battery being an indicator that the procedure has worked. Does this display after lightly pressing the accelerator? And is this arrow on the consumption screen in the centre console or on the little display behind the steering wheel? (That question must make me sound clueless about this car – probably because I am!).
Any answers to these questions will be much appreciated. I love this car, but if I can’t get the mpg back to where it was then I won’t be able to afford to run it anymore. I work out I’m losing something like 120 miles per tank at the moment.
Thanks
