First CEL 5,000 Miles

[Cvillegasx3]

Dealer said they talked to the engineers and said they had to do a hard reset on the truck because it was unlikely for two mass air flow sensors to be bad.

 

[Webbo]

Dealer said they talked to the engineers and said they had to do a hard reset on the truck because it was unlikely for two mass air flow sensors to be bad.

Interesting, glad you got something resolved. Mine just went away on its own. I took it on our 480 mile road trip and was fine. What is a hard reset? Just disconnect batteries for a while?

 

[Cvillegasx3]

Got my truck back last Thursday. Put in like 400 miles and light came on again with the same code for the third time.

 

[Webbo]

Got my truck back last Thursday. Put in like 400 miles and light came on again with the same code for the third time.

Wow, sorry to hear. At this point, maybe it’s a module not communicating with the sensor or wiring. Hope they are able to pinpoint a root cause quickly.

 

[Webbo]

Update: dealer replaced MAF sensor this morning. But while they had it, they noticed a stored code associated with “service shifter” and ended up needing to order the LED module for the gear position LED (P, R, N, etc). They say when the LED is faulty, it throws the service shifter notification.

I did notice a couple days ago that the gear LED was off and then the service shifter notification popped up. Another part ordered..