General Motors is recalling almost 3.5 million 2014-2018 model year Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra and GMC Yukon vehicles. In some circumstances, these vehicles may have a condition in which the engine-mounted mechanical vacuum pump output may decrease over time, decreasing the amount of vacuum/power brake assist.
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.
Vehicles recalled include 3,456,111 pickup trucks and SUVs, as follows:
• 2015-2017 Cadillac Escalade
• 2014-2018 Chevrolet Silverado LD
• 2015-2018 Chevrolet Suburban
• 2015-2018 Chevrolet Tahoe
• 2014-2018GMC Sierra LD
• 2015-2018GMC Yukon, Yukon XL
Dealers will update software in vehicles at no charge to owners. Dealers will reprogram the electronic brake control module with a new calibration that will improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted.
The manufacturer has not yet provided a notification schedule.
Owners of affected vehicles can contact Chevrolet at 800-630-2438, Cadillac at 800-458-8006, or GMC at 800-462-8782. GM’s number for this recall is N192268490. The NHTSA campaign number is 19V645.
Enter your vehicle’s VIN here to see if it is included in a recall: NHTSA Recalls. If it is not listed, we suggest you call the appropriate phone number above to confirm.
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