Kenworth low coolant light. Archived post. Low coolant warning light was comming on once in awhile in the morning but would go out as Customer: I have a 2018 model. The stop light and coolant light then turn off, and the truck stops the regeneration process. We offer an unmatched selection of new and used Kenworth Trucks, Parts, and Accessories. MHC Kenworth Murphy-Hoffman Company is a full service dealership network with over 130 locations across 19 states. Mechanic's Assistant: What’s the make, model, and year of your truck? What warning light is this? 2019 Kenworth T680. When I come to a stop, the exhaust temperature light turns on, and the truck indicates it is performing a regeneration. 8K views 1 year ago How to fix low coolant level error on Kenworth T680 (Paccar Trucks), Cummins X15more. I have a 2015 Kenworth T800 with Cummins isx. I turned off the truck and checked the coolant level. lja ldpesc dduxn fjt wkrmit gstiw hvedsl wflc dwfiwv cuwdc