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How do you reset the service engine soon light on a 2003 Chevy blazer?
Wiki User
∙ 14y ago
You need an OBDII scanner tool. You can visit autozone and they will scan it for you for free but usually won't reset the light because they want to sell you the part that would shut off the light. It's most likely that it's the O2 sensor behind the catalytic converter. But it's worth the trouble to find out first. Harbor Freight tools has a scanner for about thirty dollars. A quality Actron scanner will run you about 80 but it's worth the extra money.
Wiki User
∙ 14y ago
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Maybe you should service the engine soon. :P
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i would check to see if the o2 sensors have gone bad they will throw you a check engine light when they go out I have the same problem. It is the transmission. I have a 1999 Chevy Blazer and shortly after the Service Engine Soon light came on, my transmission started "slipping" between 1st and 2nd on an automatic. This only happens when the car gets warm on trips longer then about 15 miles.
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Yes
