When I get out of my 2011 Sierra Denali and lock my doors in a few minutes my horn will start honking. It will quit when I unlock doors with remote
Sounds like something is tripping your security alarm.
Sorry to hear this. I would suggest contacting your dealership and having them diagnose your horn and remote start. Under normal circumstances this should be covered under your vehicle's Bumper to Bumper Vehicle Warranty. If so, please private message me the last 8-digits of your VIN, first and last name, current mileage and your preferred dealership. Vanessa GM Customer Service
good to here from gm customer service
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