On September 29th, 20 18, SAIC-GM announced the recall of 3,326,725 vehicles including Buick, Chevrolet and Cadillac. SAIC General Motors Co., Ltd. recalled the "Split Control Arm Bushing" and "Open Screw Hole Integrated Control Arm Bushing" series vehicles. Some vehicles of SAIC General Motors Company equipped with control arm bushings under the front suspension have quality defects, which may deform or fall off when they are impacted by a large external force. In extreme cases, the vehicle may be out of control and there is a safety hazard.
The recall of Angkor's lower arm
1 and 20 13 years, SAIC-GM submitted the patent of "a bushing assembly connecting the control arm and the subframe" to the Chinese Intellectual Property Office, also known as "split control arm bushing", which was first applied to the front lower control arm bushing of Buick Angkewei in 20 14 years, and then applied to some models of Buick and Chevrolet brands under SAIC-GM in mass production.
2. With the popularity of vehicle models, Angkor exposed off-axis failure cases in many places in China, specifically, the split control arm bushing joint separated and fell off. Most vehicles are subjected to certain collision or mild stress. Due to the increasing number of off-axis cases, complaints from car owners are constantly exposed on the Internet. Car owners have reported the off-axis problem of SAIC-GM through forums, Weibo and the media, and complained to the defect center of AQSIQ.
3.2065438+In August 2005, SAIC-GM submitted the related patent of "Integrated Control Arm Bushing" to China National Intellectual Property Administration. The patent points out that the integrated control arm bushing can be prevented from falling off when it is impacted by load, while the split structure is unstable in connection, which has great security risks. It can be proved that from 2065438 to August 2005, SAIC-GM had discovered the hidden trouble of split control arm bushing, but it was still widely used in actual production afterwards.
After nearly five years, SAIC-GM finally admitted that there were design defects in the "split control arm bushing" and finally gave consumers justice.