Select sauté function of Instant Pot, add oil & onion, cook for 5-6 minutes, add garlic & ginger, cook 1 minute more, be sure to scrape any bits that cling to bottom of pan.
Add carrots, broth, seasonings,stir to combine, put lid on, seal and cook pressure 5 minutes.
Allow pot to come to natural pressure release.
Using an immersion blender, blend until smooth, add coconut milk and lime juice.