Early buyers of Rivian’s latest electric SUV are facing another delivery delay. A number of customers who pre-ordered Rivian’s R1S SUV received an email this week informing them that an expected June or July delivery window has been pushed back several months. According to Auto Evolution, customers posted on Rivian’s forum that their delivery window had been updated to August or September 2022, or as late as October through December 2022. The EV maker first debuted the seven-passenger vehicle — which has a starting price of $72,500 — back in November 2018, and has pushed back deliveries multiple times, citing production delays and supply chain issues. Deliveries of the first batch of R1S SUVs were originally slated for August 2021.

The company in its email chalked up the latest delay to ongoing supply chain issues and its limited service infrastructure. It said that it would prioritize deliveries to areas that are close to Rivian service centers. Rivan currently operates service centers in only 14 states, so customers in other areas will likely have an even longer wait.

“As we continue to assess our supply chain and build plans, we want to provide an update on your estimated delivery window,” wrote Rivian in its email to customers. It stated that the customer’s updated delivery window was based on three factors: their preorder date, delivery location and current configuration. But a number of early customers seemed puzzled at how Rivian calculated the new delivery window. One customer noted that they pre-ordered the R1S SUV back in November 2019, yet was assigned to the later delivery window of the fourth quarter of 2022. Many customers who lived in especially remote areas or in a state without a Rivian service center also reported later delivery windows. “The irony of an off-road adventure vehicle delivered only to major cities,” wrote one Rivian customer on the company’s forum.

Rivian has struggled to scale up production of its vehicles amidst a global parts shortage, including semiconductors. The Tesla competitor isn’t able to rely on existing relationships with parts suppliers, which traditionally prioritize the larger, more established car companies, the Wall Street Journal noted.