As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.

Service Brakes, Hydraulic — Power Assist — Vacuum

Date Announced
SEP 06, 2019
Vehicles Affected
3,456,111
Chevrolet Recall #
N192268490
NHTSA Campaign #
19V645000
Summary
General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
Actions
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.