Light keeps coming in for brand new freightliner

I've been reading/hearing elsewhere about the 'gremlins' in the newer ones. I'd schedule it in to the shop, if I were you. Just IMHO.

 

Quote from a friend in another 'related' post:

"Sounds like you picked up an electrical gremlin overnight while parked.

These do happen in the trucks, brand new or older life, from time to time. I've had erroneous warnings on the dash in every truck I've driven. Some were a few seconds, while others lasted for more than a week. About the only thing you can check is the radiator fluid level and cap, the air filter, the engine oil, the fuses, the power steering gearbox fluid, DEF tank, the fuel water filter, and the fuel. Most everything else I can think of is going to be either electrical and/or need a mechanic.

I would call your maintenance or breakdown phone and listen to their solution. Other than that, just keep an eye on all the gauges, watch the mirrors for prolonged excessive exhaust smoke, and listen to the motor while at different speeds and RPMs. It's probably nothing."

ps: Did you perhaps leave your fuel cap off?!?!?

 

When you first turn the key to the on position stop there and let the electrical system cycle through. Lights flash, stuff beeps and some models the dials in the gauges will move. Once it all settles then start the truck. It can help with the gremlins.

 

Wow! Only time my idiot lights come on is when I turn ignition to start it up. 2001 pete with a c-15. 1.9 million miles and 400k on rebuild. No pun intended. .just say'in. Hope your problem is figured out soon.

 

Sensors are programmed to read within certain parameters while the engine is running. If something with the engine goes outside of those parameters, then you'll get a light. If the engine continues to run properly within those parameters for a certain amount of time, then the ecm will see that and the light will go away. There is usually a recorded event in the ecm that can be checked, but I wont even begin to try to explain that.

Do you even know what engine your truck has?

 

That's funny.
Since it is a brand new truck and you seem to be having issues already.

Many things are more prone to failure early in their lifecycle.
Electronics and tires come to mind.
Once you get past a certain point they are less prone to failure until they get very old.

 

My 2020 did that twice. I have 60k on mine both times the nanny lights came on I just pulled over and switched ignition off then back on. Cleared them both times doubt it is anything to worry about. Although if it keeps doing it I'll run it to a dealer to check it out but again eh not something to worry about. Only have that crap on my truck for the insurance break anyway

 

Could be something like a bad ground on the computer...
Can't keep resetting all the time. Need it fixed.