15216

Bulletin number

15216

Component

Power train: automatic transmission

Summary

15216 - customer satisfaction program. Certain 2015 model year cadillac escalade and escalade esv; chevrolet silverado ld crew and double cab; and gmc sierra ld crew, sierra ld crew double cab, yukon, and yukon xl model vehicles that are equipped with a 6.2l engine (rpo l86) and 8-speed automatic transmission (rpo m5u) may have a condition in which the u-joint retainer bolts lose index. If this condition occurs, the customer may hear or feel a “clunking” noise when changing speed. If this condition is not corrected, reduced clamp load may cause the propshaft to move relative to the axle yoke and the customer may feel a vibration. If one or more bolts back out completely, the propshaft may separate from the axle resulting in a loss of drive and potential damage to the underside of the vehicle. Dealers are to replace two u-joint retainers and four u-joint retainer bolts with new bolts that include an adhesive patch.

Owners of these vehicles have filed 381 complaints in the transmission category.