Temp Gauge on 2016 suburban...

[toi]

ok,11:30 pm here and we test drove friends new suburban and it does the same thing.
all said and done this is the way these trucks operate i suppose, once temp hits 220 the gauge starts to go up a tick and the secondary fan kicks in and cools down the engine.
thanks to all who has answered in this post.

 

[BlkYukon]

They are dummy gauges. You don't have to worry about it unless it starts going towards the red. They aren't calibrated. If you want the real temperature use a scan tool of some sort.

 

[bgsntth]

I reported earlier in regards to my experience with the temperature gauge going up to about 230 after climbing a 0.6 mile 20 - 40 degree gravel/grass slope in low range. Fan was going full-blast, but it did cool down to 210 after 10 minutes of easy driving.

Pic is at the top of the slope: