问题:部分国产L550 PHEV车辆的TCUB软件需要升级。
原因:软件需要升级。
措施:针对下列车辆，请在交付客户前，通过SOTA升级将TCUB软件升级到最新版本。
                                                                                                                                                                                                                                                                                                           1. 车辆点火维持启动20分钟（怠速或行驶），完成后台新软件下载任务。                                                                                                                                                                                      2. 待车辆熄火休眠后，再启动车辆维持10分钟，完成新软件升级。
如在升级过程中遇到问题，请发送邮件至 CJLR_Tech_Service@cheryjaguarlandrover.com 获取技术支持。
受影响车辆:
L2CHA2B78MG126311
L2CHA2B79LG125473
L2CHA2B7XMG126049
L2CHA2B73MG126023
L2CHA2B78MG126034
L2CHA2B76LG125284
L2CHA2B76MG126274
L2CHA2B76MG125934
L2CHA2B79LG125618
L2CHA2B70MG126674
L2CHA2B72LG125332