outside temperature shown on radio screen

2016 CHEVROLET IMPALA
30,000 MILES • 3.0L • VR6 • 2WD • AUTOMATIC
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BOOMERDOG
  • MEMBER
  • 1 POST
had lower grill replaced afterwards outside temperture reading only shows -40 nothing found in owners manual.
Feb 17, 2018 at 12:13 PM
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CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
That is the default reading when the air temperature sensor is disconnected or a wire is cut. Given the recent service, the old sensor might have been missing and the wires were torn off. The sensor could still be on the old grille.
Feb 17, 2018 at 5:37 PM
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