Aftersales DMS for Automotive OEMs: Why Service Is Now Your Biggest Profit Centre

For most of the last several decades, the vehicle sale was the dealership's story, and service was the department that kept customers coming back between purchases. That framing has quietly flipped. New vehicle gross profit has fallen at every major public U.S. dealer group over the past two years, with some groups seeing declines exceeding 30% in total new-vehicle gross dollars, while service and parts have been the only segment posting consistent, positive same-store growth across every one of those same groups.

The number that captures this shift most clearly: fixed operations now account for 48% to 59% of total gross profit at the six largest public U.S. dealer groups, while representing only around 13% of total revenue. Service isn't the department propping up the sales floor anymore. It's carrying the business, and the systems managing that department deserve to be evaluated with the same seriousness OEMs apply to sales and inventory infrastructure.

Key Takeaways:

• Fixed operations generated 48% to 59% of total gross profit at the six largest public U.S. dealer groups in Q4 2025, despite representing only around 13% of total revenue.
• New vehicle gross profit declined at every major public dealer group over the past two years, while service and parts revenue grew at every one of them.
• U.S. franchised dealers wrote over 276 million repair orders in 2025, generating more than $164 billion in service and parts revenue.
• High-performing "Thriver" dealerships, as identified by Cox Automotive, report meaningfully higher absorption rates and revenue per repair order than the rest of the market, driven by operational discipline, not luck.
• Roughly 1 in 3 service calls go unanswered at the average dealership, representing an estimated $850,000 to $1.17 million in lost annual service revenue per store.

The Data Behind the Shift

The scale of this reversal is worth sitting with. According to Stephens Inc.'s Q4 2025 Automotive Retailing Industry Rankings, fixed ops accounted for between 48% and 59% of total gross profit at the six largest public U.S. dealer groups, while new vehicle gross profit fell across every single one of them. AutoNation posted a two-year decline of 34.2% in total new-vehicle gross profit dollars. Lithia fell 13.8%. Penske dropped 9.5%. Meanwhile, every one of those same groups grew same-store service revenue over the same period.

At the industry level, the numbers are just as striking. U.S. franchised dealers wrote more than 276 million repair orders in 2025, generating over $164 billion in service and parts revenue, according to NADA Data. That works out to roughly $9.7 million in fixed ops revenue per dealership rooftop, a figure that's grown steadily even as new and used vehicle revenue has swung with interest rates, incentives, and inventory availability.

Why Service Revenue Behaves Differently Than Sales Revenue

The structural reason fixed ops have become the more reliable profit engine comes down to how the two revenue streams behave. New and used vehicle sales are hypersensitive to inventory levels, financing rates, incentive structures, and broader consumer sentiment, all factors largely outside a dealership's direct control. A customer typically buys a vehicle once every five to seven years. Fixed ops revenue, by contrast, is recurring: that same customer visits a service department multiple times a year for maintenance, repairs, and warranty work, largely independent of the broader economic cycle affecting vehicle purchases.

Customer-pay service and parts work in particular represents the most profitable segment within fixed ops, since it's priced at retail market rates rather than negotiated warranty reimbursement or manufacturer-set rates. This combination, recurring demand plus stronger, retail-level margins, is exactly why fixed ops has absorbed the profit pressure that's been building on the new-vehicle side of the business.

Industry Challenges: Why This Profit Centre Is Also Where the Most Revenue Leaks

Missed and Mishandled Calls Are a Direct Profit Leak

Roughly 1 in 3 service calls at the average dealership go unanswered or are abandoned by the customer. When realistic conversion rates and average repair order values are applied, that gap represents an estimated $850,000 to $1.17 million in lost annual service revenue at a typical mid-size store, a leak that's entirely operational rather than related to market conditions.

Dealerships Are Losing Service Visits to Independent Competitors

Even as total service and parts revenue have grown industry-wide, franchised dealers have lost approximately 12% of service visits to independent and third-party competition since 2018, according to Cox Automotive research. Every visit that migrates to an independent shop is recurring revenue that doesn't come back easily once a customer establishes a new service relationship elsewhere.

Performance Gaps Between Dealers Are Significant and Persistent

Cox Automotive's 2026 Fixed Operations and Ownership Study identifies a group of dealers it calls "Thrivers," roughly half of fixed operations decision-makers who report both more efficient and more profitable service departments. The performance gap between these dealers and the rest of the market is substantial: 58% of Thrivers describe service profits as strong, compared to just 28% of non-Thrivers, and Thrivers report meaningfully higher absorption rates, higher revenue per repair order, and significantly higher bay utilization.

Disconnected Data Makes It Hard to See Where the Leaks Are

Many of these problems- missed calls, lost service visits, underperforming outlets- aren't visible in real time without connected DMS data. A dealership or OEM regional team relying on periodic manual reports discovers these leaks well after they've already cost meaningful revenue.

Root Causes: Why Operational Infrastructure Now Matters as Much as Sales Strategy

The reason this shift demands attention from OEMs specifically, not just individual dealerships, is that fixed ops performance is heavily dependent on operational systems, appointment scheduling, service history tracking, parts availability, and warranty integration, which a fragmented or outdated DMS handles poorly. A dealership can have strong technicians and a loyal customer base and still leak significant revenue through missed calls, inconsistent service reminders, or slow parts identification, all of which trace back to whether the underlying operational infrastructure is supporting the department or just recording what happened after the fact.

Solution Framework: What Protects and Grows Fixed Ops Profit

Given what the data shows, the operational priorities for protecting and growing fixed ops profitability are clear:

• Consistent call handling and lead response, closing the gap that currently leaves roughly a third of service calls unanswered or abandoned.
• Connected service history and reminder systems, driving the recurring repeat visits that make fixed ops revenue more predictable than vehicle sales.
• Real-time bay utilization and absorption tracking, since Thriver dealerships distinguish themselves specifically through operational metrics like shop hours sold and bay utilization, not just technician skill.
• Integrated warranty and parts data, reducing the friction, delayed parts identification, and warranty status confusion that slows repair order throughput and depresses revenue per RO.
• Retention-focused customer data, since every service visit lost to an independent competitor is recurring revenue that's genuinely difficult to win back.

How Intelli DMS Supports Fixed Ops as a Profit Centre

Intelli DMS, Intellinet Systems' dealer management system, is built around exactly the operational functions that separate high-performing fixed ops departments from the rest of the market. Its appointment booking and job card management modules capture the service history and scheduling data that drive consistent, mileage-based customer follow-up, directly addressing the recurring-visit advantage that makes fixed ops revenue more predictable than vehicle sales.

Because Intelli DMS connects with Intellinet Systems broader aftermarket suite, service operations aren't managed in isolation from warranty and parts data. Warranty integration gives service advisors immediate visibility into claim status and coverage during a repair order, reducing the friction that slows throughput and depresses revenue per RO. Connected parts data through Intelli Catalog supports faster, more accurate parts identification at the point of service, directly supporting the bay utilization and absorption metrics that distinguish top-performing dealerships. And centralized dealer visibility gives OEM regional teams the real-time performance data needed to identify which outlets are capturing their share of this growing profit centre, and which are leaking revenue through missed calls, low bay utilization, or inconsistent customer follow-up.

ROI and Business Impact

For OEMs overseeing dealer networks, treating fixed ops as the profit centre the data now shows it to be delivers value in several concrete ways:

• Recovered revenue from missed service opportunities, closing a leak that can represent close to seven figures annually per store when call handling and follow-up are inconsistent.
• Higher absorption rates network-wide, narrowing the performance gap between average and top-performing "Thriver" dealerships.
• Reduced service visit leakage to independent competitors, protecting recurring revenue that's difficult to recapture once a customer relationship shifts elsewhere.
• Better-informed network strategy, since real-time, connected DMS data gives OEM leadership visibility into fixed ops performance that periodic manual reporting simply can't match.

Industry Use Cases

• Multi-brand automotive dealer groups use connected DMS data to identify which outlets are underperforming on bay utilization and absorption rate, applying the operational practices of top-performing locations across the broader network.
• OEMs managing regional dealer networks use centralized service and warranty data to reduce the friction that slows repair order throughput, directly supporting higher revenue per RO across the network.
• Dealer groups competing against independent service providers use retention-focused DMS data to close the visit-leakage gap that has cost franchised dealers approximately 12% of service visits to competition since 2018.

Conclusion

Fixed operations have quietly become the financial backbone of the dealership business, generating close to 60% of total gross profit at the largest dealer groups while new vehicle margins continue to compress. That shift changes what deserves priority investment. A dealer management system supporting service, parts, and warranty operations isn't a back-office convenience anymore. It's the infrastructure directly protecting the largest, most reliable source of profit most dealerships have left.

OEMs and dealer networks that treat their DMS accordingly, connecting scheduling, warranty, and parts data into a system built to close the specific leaks the data shows, are costing real revenue and are the ones positioned to capture their full share of a profit centre that's only becoming more important from here.

Want to see how connected service, warranty, and parts data can help protect your dealer network's biggest profit centre? Book a demo today.

FAQ

How much of dealership profit comes from fixed operations now?

Fixed operations, service, parts, and body shop combined, generated between 48% and 59% of total gross profit at the six largest public U.S. dealer groups in Q4 2025, despite representing only around 13% of total dealership revenue.

Why has fixed ops become more profitable than vehicle sales?

New and used vehicle sales are highly sensitive to inventory, interest rates, and incentive structures, while service demand is recurring and largely independent of those factors. Customer-pay service work also carries retail-level margins rather than negotiated rates.

How much revenue do dealerships lose to missed or mishandled service calls?

Roughly 1 in 3 service calls at the average dealership go unanswered or are abandoned, representing an estimated $850,000 to $1.17 million in lost annual service revenue at a typical mid-size store.

What separates high-performing "Thriver" dealerships from the rest of the market?

Thriver dealerships report significantly higher bay utilization, higher revenue per repair order, and stronger absorption rates, driven by operational discipline in areas like call handling, scheduling, and shop capacity management rather than differences in technician skill alone.

How does a connected DMS help protect fixed ops profitability?

A connected DMS gives OEMs and dealerships real-time visibility into service scheduling, warranty status, and parts availability, closing the operational gaps, missed calls, delayed parts identification, and inconsistent follow-up that otherwise leak revenue from the dealership's largest profit centre.