I have a 2011 Camry Altise. I bought it brand new, and it drove normally/didnt make a noise at start up. After about 2 years, it started to make this buzz sound between 15-20km/hr on acceleration... It would only happen every now and then, but now it does it at every start up. It has been doing this for 1 year now. Never had time to drop it off to be looked at OR when I dropped it off for a service at toyota, no one bothered to look into it even though I requested it. Finally, someone from Toyota service had a test drive with me, recorded the buzz sound and said he will look into it. He said someone else also had the same concern with their vehicle... One week later, he called me with an answer. He said that it was a ABS self test that occurs at start up when the vehicle reaches 17km/hr. It is perfectly normal and does not compromise safety, all cars do this test, however some cars make a buzz noise and some don't during it... I asked him if anything can be done to get rid of it. Unfortunately the buzz sound cannot be lowered or make it disappear. Some cars are louder and noticable than others. Every car is different. Tests have been done on cars to try and minimise it, but no luck. He said he will lodge a report, so if they do find a "cure" he will let me know. My partner's family has 2 camry hybrids... And they dont even make the buzz noise. Maybe it will do it later on?? Who knows.. Quite disappointed that nothing can be done to minimise the buzz, but at least it isn't a safety issue and I know what the cause is now. Time to accept this buzz sound everytime I start my car! :(
