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My mechanic checked the codes said nothing was showing up on the reader, reset service soon light. stayed off for two days mechanic told me how to reset light. turn to on position tap accelerator 4 times then start engine. did this but light did not go out. Is this correct procedure? if not what is the proper way to reset light?

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If the service engine light is on... there is a code set.

Go to the link below and pull the codes yourself.

It can be done by using the buttons on your dash.

Post the codes and the definitions here.

Then we can help you fix whatever is causing the light to come on.

http://www.caddyinfo.com/readingcodes.html

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  • 5 months later...

Hear is the full procedure how to reset oil service light Cadillac DeVille. If you like to reset any maintenance oil light after an oil change. Or reset check engine light, airbag light, inspection key or insp errors when maint reqd, for Cadillac cars. http://resetservicelight.com/reset-oil-service-light-cadillac-deville/

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Check for codes using the on board system NOT a reader, the reader can ONLY get P or Powertrain codes, there are codes for other systems that a READER does not get to. Read the bottom of this post for retrieving codes for your year and model and post the codes here.

Erasing codes does NOTHING toward actually FIXING the problem, it just erases the DTC code and when the test fails again, it sets again. It is necessary to FIX what is causing the light or code.

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Bruce, we are getting a lot of these types of posts where the new members are not reading the basics, I have seen two other posts like this in the last few days,

While there is a subsection READ THIS FIRST BEFORE POSTING, is a new member directed to that subsection?, or must he stumble upon this subjection, if they read this subsection, we would not need to spoon feed new members, can this LINK be pushed at a new member and they be encouraged to read it?

http://caddyinfo.ipbhost.com/index.php?showtopic=15254

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Mike,

I'll look to see if there is an easy way to push the Read Before you Post page as a link, but repetition is the hallmark when greeting new members on forums.

Bruce

2023 Cadillac CT4-V Blackwing

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