A system includes a processor and a memory. The memory stores instructions executable by the processor to identify a vehicle part to replace based on received vehicle data including a diagnostic status, a location, and a first route. The memory stores instructions executable by the processor to determine a vehicle operating pattern based on the identified vehicle part and to generate a second route including a second destination based on the vehicle part, the vehicle operating pattern, the location, and a first destination and an expected time of arrival of the first route. The memory stores instructions executable by the processor to navigate the vehicle based on the determined second route and the vehicle operating pattern.