i changed the oil and radiator fluids in my 2005 toyota highlander and after about 2 hours, the check engine, vsc and trac off lights came on. used SAE 10w-40 instead of SAE 5w-30. is that the cause?

Asked by Oct 31, 2013 at 07:05 AM about the 2005 Toyota Highlander Base V6

Question type: Maintenance & Repair

i changed the oil and radiator fluids in my 2005 toyota highlander and after about 2 hours, the check engine, vsc and trac off lights came on. i used SAE 10w-40 instead of SAE 5w-30. i also poured in a different brand of radiator coolants, could that be the cause?

5 Answers

400

NO,did you leave something off

7 out of 7 people think this is helpful.
110

May I ask how you fix the problem? I have similar case from my Highlander 2007. After a dealer service to replace its oil, about 3 hour drive, then Check Engine and VSC lights on. Any idea?

11 out of 11 people think this is helpful.
20

check the gas cap for loosen or take off the battery positive for 30 sec to reset the syatem

2 out of 2 people think this is helpful.
110

you've a few options to make it easy go to auto zone and get a free diagnostic and tell me what code they get

1 out of 1 people think this is helpful.
10

I had this same problem. There is a hose that frequently gets disconnected when inspecting/changing the air filter and when disconnected causes this light to go on. If you can't figure it out, you might try Jiffy Lube or Midas as I have discussed with them a few times and they seem to be aware of it at most shops.

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