Dena Williams Posted January 26, 2017 Share Posted January 26, 2017 My Lexus 2003 RX300 is making a loud beeping sound coming from the dashboard area when accelerating. When I apply the brakes, the beeping sound stops. It usually only happens when the engine is cold and up getting up to a 50 mile an our or so speed, or when accelerating up a steep hill. Anyone else had this, or know what it is? Quote Link to comment Share on other sites More sharing options...
pj8708 Posted January 26, 2017 Share Posted January 26, 2017 Hi Dena and welcome, This is a new one. I've never heard of this problem before. This is just a way out there idea, but since the beep seems to start while the car is under a load maybe it might be linked to knocking using low octane gas. Like I said just an uneducated guess. Paul Quote Link to comment Share on other sites More sharing options...
SteveOhio Posted January 4, 2022 Share Posted January 4, 2022 On 1/26/2017 at 1:18 PM, Dena Williams said: My Lexus 2003 RX300 is making a loud beeping sound coming from the dashboard area when accelerating. When I apply the brakes, the beeping sound stops. It usually only happens when the engine is cold and up getting up to a 50 mile an our or so speed, or when accelerating up a steep hill. Anyone else had this, or know what it is? I have this problem - i think - happens when car not warmed up, seems to happen when accelerating.. also disengages cruise control when it starts. Generally doesnt stop until i pull over and get RPM under 900. Did you ever figure out what was going on? Quote Link to comment Share on other sites More sharing options...
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