Tesla Restores Auto-Brakes Amid Consumer Reports Downgrade

Tesla Inc. is deploying automatic braking to its recently built electric vehicles, though not in time to spare the Model X and Model S from ratings cuts by Consumer Reports magazine.

Model X sport utility vehicles and Model S sedans produced over roughly the last six months lacked functioning automatic emergency-braking systems that use collision-detecting sensors to slow or stop vehicles before a crash. Consumer Reports said Wednesday that the lack of the feature -- which Tesla had said would be available by the end of last year -- would cost each model two points on the magazine’s 100-point scale.