Over-the-Air update is one of the key enablers of the “Software defined vehicle” paradigm that hopes to revolutionize the way features are offered to the customer to support different models such as – fixed features with only enhancement offerings or an “A La Carte Auto” with offerings of new feature subscriptions. Over-the-Air (OTA) also enhances the way critical fixes are released, making the vehicle safer without costly recalls involving long turnaround times. It is imperative to ensure the safety of the OTA update process to reap the benefits offered by the OTA process. This research seeks to identify the shortcomings in how the state-of-the-art automotive functional safety standard-ISO 26262:2018 addresses integrity of the software update process of electronic control units specifically regarding integrity of the OTA update process in modern software defined vehicle. Consequently, this paper has underscored potential malfunctions in the OTA update process that may give rise to safety risks in the updated safety applications. This can be performed by a safety analysis of the generic software update process using Hazard analysis. The risk assessment i.e. ASIL determination is based on impact of the hazard on a safety feature under update. ADAS L1 feature Lane keeping assistance was considered in this analysis as the feature under update. Several safety functions/requirements were identified from this analysis and their ASIL was also determined. However, this paper strongly recommends that these requirements be realized with rigor corresponding to ASIL D since criticality of a feature under update cannot be determined a-priori during vehicle development.