2007 Lexus RX400h Questions

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While driving the heater works only when the engine is running. What would cause this problem?
When the car is locked up and outside, all the doors and sun roof open up if it rains. This has only happened at night, but that might be coincidence. I think it has to do with the rain. Is there a water sensor that affects the doors?
Is there something that can be done? Did they use the wrong replacement parts?
Has anyone had the brake lines cleaned and checked for any contaminants that may have caused the ABS Actuator to fail to operate properly, prior to replacing it?

Also, did he begin shortly after the brakes were done? I have learn that some tech's at chain tire/brake shops will push the caliber piston in, opposed to releasing the fluid, as it is a hassle for them when they are in a hurry. This cause contaminants to enter the system, which will leads to failure.
i'm considering waiting until $130k before replacing
What is the mount? What is the cost to replace both of these? The repair is to Replace Rear Schocks and Mounts
The dealership says to replace the whole nav system, costing nearly $1700. They were unable to make it function properly. Any other options? Surely it can be reprogrammed or repaired.

The "zooming around" does not start immediately.

My 2007 400h gets terrible gas mileage and has for years. Dealership claims its the cold weather. Its never been tuned. Dealership says the plugs last 100K miles. We are now at 104,000 and the engine runs very rough. What to do?
Check ingine light is on with cod obd2
I took it to the dealer here and they said I need to replace the whole headlight assembly. Which cost over $800.00. There should be a way to replace the seal, instead of replacing the headlight assembly.
My car is approaching 100,000 miles, so I would like to replace the spark plugs. Any helpful tips n how to access the spark plugs for removal and replacement is appeciated.
A local shop told my daughter that to do her brakes it would cost $500 per axle. They told her that they replace the rotors when they do the brakes. All she wanted done was to replace the pads.
My check engine light is on and Lexus got a code P0051, P2240, and P2241 A/F sensor B2-S1 open Circuit. Isn't this the oxygen sensor and shouldn't it be coverd under the Emissions Warranty?
Car won't start with headlights on auto
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