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ggrote1, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 16856
Experience:  26 year GM master tech
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My on star in srx 2010 quit working 3 months ago. No lights

Customer Question

My on star in srx 2010 quit working 3 months ago. No lights on mirror or no connection at all how can I fix the problem
Submitted: 2 years ago.
Category: Cadillac
Expert:  ggrote1 replied 2 years ago.

I am very sorry for the long wait

3 months ago it was working fine and then just out of the blue stopped ?

Customer: replied 2 years ago.
Expert:  ggrote1 replied 2 years ago.

thank you for that information

this issue will come down to the fuse on star blown in the inside fuse box OR if that fuse is good and the rear view mirror is plugged in we have had on star modules either going bad or not powering up when the car is turned on which usually a power cycle procedure followed with a scan tool to power down the rap relay and see if then the lights will light up and work in the mirror

if the fuse is good and the power up does not work then the on start module would need to be changed I am sorry to say