I was on my way home coming down a street with stop and go traffic, when I noticed the gauge was almost in the red. The message showing was telling me the fluid was hot then the bell started ringing. The the message was saying to let the truck idle. I made it to the house and it's been idling for 20 mins or so and the temp has dropped. I'm keeping my eyes on it but trying to figure out why this is happening. I wasn't pulling a trailer and nothing hevy in the bed. Anything anybody??? I'm wondering if it will be ok to drive to work tomorrow or to take it to the shop? I'm unable to contact my people Relentless right now to see what they think so any help will be greatly appreciated!