Gadgets Need a ‘Check Engine’ Light

Repairing devices is a key part of reducing their long-term environmental impact, but many consumers don’t know when to do it

Photo: Armin Weigel/picture alliance/Getty Images

While consumers generally expect to be notified of regular maintenance on their car — any time the “check engine” light comes on, they know it’s time to take it to the shop — many remain unaware…