I think you are right.
https://troubleshootmyvehicle.com/gm...-temp-sensor-1

However, I was referring to the "Air Temp" sensor. On the Astro/Safaris they put them down low in front of the radiator.

 

I took my van to the dealer so that could do the window recall. While there I asked if my van was supposed to display the outside temperature. He said he would have a mechanic take a look at for free. I left my van there so they could work on it the following day. I got a call this morning they finish with the recalls, one for the window switch and the other for a shackle bolt. He also said the regular mechanic couldn't find the sensor for the outside temperature, but he looked up my vin number and he said that I don't have a basic Express and that I should have had the temperature display, and if I wanted he could have his mechanic that works with electronics look at it but it would be $65. That mechanic wasn't in today so even if I wanted done it would had to be done another day. I thought I had the sensor bellow the driver side headlight. I'll post a picture of it when I get a chance.

 

What are the recalls for? What years are affected?

 

https://my.gm.com/recalls/ I enter my VIN and it showed this, no mention about the shackle bolt. But they said they replaced it. I have a 2015 2500LT Express Pass regular wheel base converted for ridesharing

GM Recall #:

• N172086770

[left]

• NHTSA #
• 18V295

• Date Issued:
• May 03, 2018

Recall Title:

Driver Side Window Switch Inoperative

Recall Description:

General Motors has decided that a defect which relates to motor vehicle safety exists in 2014 – 2017 Chevrolet Express and GMC Savana vehicles (built through 6/21/16 and 6/17/16 respectively) equipped with power windows. Under certain conditions, liquid can enter the power window switches in these vehicles and cause corrosion, leading to high electrical resistance. High electrical resistance can cause the switch to heat up, smoke or melt, increasing the risk of fire and injury. Occupants may notice that the power window is malfunctioning or inoperative. Smoke or an odor from smoke or melting may also come from the door panel.

Safety Risk Description:

A short circuit in these switches can cause the switch to heat up, smoke or melt. Over time, under rare circumstances, the switch can catch fire while the vehicle is on or up to ten minutes after the vehicle is shut off before the driver exits the vehicle, increasing the risk of injury to the driver or passengers.

Repair Description:

Replace driver side door window switch.




I found the other recall by using goolge





#31170-01: Service Update Bulletin – Rear Suspension Shackle Bolt Contacts HVAC Line – (Jan 17, 2017)


Subject:
31170–01 — Rear Suspension Shackle Bolt Contacts HVAC Line

Models:
2015–2016 Chevrolet Express
2015–2016 GMC Savana



Reference Number:
N16203117
Release Date:
January 2017


Revision:
01
Revision Description: This bulletin is being revised to update the labor times within the
Warranty Information section. Please discard all previous copies of bulletin 31170.


Attention:
This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. This bulletin will expire at the end of the involved vehicle’s New Vehicle Limited Warranty period.


Make

Model

Model Year

RPO

Description


From

To

Chevrolet Express 2015 2016 C36 Auxiliary Heater
GMC Savana 2015 2016 C69 HVAC System Rr-Air Conditioner

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs.


Condition
Certain 2015 and 2016 model year Chevrolet Express and GMC Savana vehicles, equipped with HVAC system rear – air conditioner (RPO C69) or auxiliary heater (RPO C36), may have contact between the rear leaf spring shackle bolt and rear HVAC coolant lines that may rub through creating a coolant leak. This leak may cause the engine to overheat, leading to loss of propulsion or loss of HVAC performance.

Correction
Replace the shackle bolt. Inspect and, if necessary, replace the auxiliary heater hose.

 

Here's one for my 2016;

 

ive looked thru the upfitter manual and I cant locate where the temp sensor and compass module connect. Is it to the BCM or the DIC?

 

From my memory, the Compass goes to the BCM. The Temp Sensor likely goes to the BCM. The BCM sends a digital signal to the DIC telling it what to display. This is why you will need the Dealership to Flash the BCM if you want those items to display on the DIC.

 

Where brand of rear view mirror is that in your pic from earlier post?.

 

My rearview mirror is my Factory rearview mirror. I like the shape the best. I have autodim and the camera in mine. I have been planning on selling it if anyone wants it. I am not sure which picture you are talking about. I think I had posted Rostra or Gentex mirrors earlier on. Sometimes I want that fully loaded Gentex Mirror. It is hard to find and it's expensive. The one I am speaking of comes with: Autodim, Rear Camera, Compass, Temperature and Onstar (or what I would prefer Homelink).

I think I am going to place one, two or three 4 to 6 LCD Panels mounted in a row as opposed to having a mirror. Just rough plans I have.

 

the pic im talking about does not have on star... im looking for one with camera, compass, and outside temp