Apr 23, 2014 · Hi I am new to this forum wondering if someone out there might be able to help. Have a 2012 silverado 2500 LML diesel which is giving me the service vehicle emission system message. …

Jan 22, 2018 · Got this message Friday on my 2015 GMC. Check engine light and service emission system came on. Dealer doesn't know what it means either? Truck has 66,000 miles on it so I would …

Jan 3, 2019 · If not within the specified range, replace the emission reduction fluid tank. 3. Compare the scan tool Ambient Air Temperature to the Reductant Temperature. The readings should be within …

Jul 15, 2018 · When I went to shut it off the DIC had the message "Service Emission System Now, See owners manual, 175 miles until 65 mph max speed." I did have the air intake tube off while I checked …

May 21, 2012 · OK. I traded my 11, which never gave me trouble, for a 12. So far TWICE in the first 1500 miles, it has popped the SES light, with a message in the DIC that says "service emissions …

Dec 27, 2015 · I have read a lot of posts now related to the emission issues and almost all posts limit the troubles with the 2011-2012 trucks. Well mine is a 2013 and is having the same troubles.

Jul 17, 2016 · Hello all. I have a, what I consider, an interesting problem. A 2012 GMC 2500HD with a LML (160,000KM on engine). I had just recently replaced the coolant o-ring in the flywheel housing …

Aug 9, 2017 · After suffering NOx sensor failures which set "Service Emission System" and "175 Miles Until Max Speed 65 mph" warnings, I replaced NOx sensors, drained and replaced DEF with GM …

Feb 23, 2022 · Have a 2016 HD Z71 2500. 137K miles. Very well taken care of, I’m only owner. Just got a message on my display that says “175 miles to max 65mph” Is my emission system going out? …

Mar 23, 2025 · A buddy of mine called me 3 weeks ago and told me he had just got a message on his dash to service his emissions system. He has a Banks I dash in his truck and I had him read me the …