U.S. Aftermarket Service Index (ASI) Study
The Definitive Benchmark for Post-Warranty Service Performance
The ASI Study measures customer satisfaction with service experiences at non-dealer aftermarket providers, offering a competitive view of how independent shops and chains compare to franchised dealers—especially during the critical 4- to 10-year ownership window when most vehicles are out of warranty.
What the Study Measures
A Comprehensive Benchmark Across Every Major Aftermarket Service Category
Evaluates full-service maintenance & repair, quick oil change, and tire replacement experiences across seven core attributes:
• Initiation
• Facility
• Advisor performance
• Quality
• Courtesy
• Price/value
• Time to complete service
Includes:
• Voice-of-customer feedback from owners following recent service visits
How It Works
How the Aftermarket Service Index (ASI) Study Works
• Captures feedback from vehicle owners after recent service visits
• Evaluates experience across seven key service attributes (from service initiation and advisor performance to quality of work, price/value, and time to completion)
• Segments results by provider type (Full-Service Maintenance & Repair, Quick Oil Change, and Tire Replacement)
• Benchmarks performance against franchised dealers during the critical 4- to 10-year, post-warranty ownership period
Core Strengths
Stronger Service Insights, Better Retention
• Helps aftermarket chains and OEM dealer-service teams understand why customers choose one provider over another
• Identifies the attributes that drive satisfaction, loyalty, and retention
• Supports measurable improvement in customer retention during the post-warranty period
• Encourages competition that raises service standards across the industry
Business Impact
Benchmark Performance, Win Customers
• Uncover why customers choose your competitors
• Pinpoint the service drivers that fuel satisfaction, loyalty, and repeat business
• Increase post-warranty retention with data-backed performance improvements
• Elevate your competitive position and raise service standards across your network
Key Dates
2026
Fielding: December 2025 – February 2026
Publish: April 23, 2026
Press Release: April 28, 2026
Press Release & Award Information
JD Power issues a national press release highlighting key findings and top-to-bottom rankings from the study. The brand(s) that rank highest in each award-eligible segment and meet predetermined award criteria will have the opportunity to enter into a licensing agreement through the JD Power Awards Program, which requires subscribing to the study as a prerequisite. Entering into a licensing agreement provides top-ranked brands with the valuable opportunity to market their award-winning performance. As the trusted symbol of excellence, JD Power Awards enhance brand perceptions, drive consumer preference, and differentiate awarded brands in competitive marketplaces.
Profiled Brands
Tire Replacement
Belle Tire
Big O Tires
Costco
Discount Tire
Express Oil Change & Tire Engineers
Firestone Complete Auto Care
Goodyear Auto
Service
Jiffy Lube
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Mr. Tire Auto Service Centers
NTB
Pep Boys
Sam’s Club
Tires Plus
Walmart
Full-Service Maintenance & Repair
Belle Tire
Brakes Plus
Christian Brothers Automotive
Discount Tire
Firestone Complete Auto Care
Goodyear Auto
Service
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Monro Auto Service and Tire Centers
Mr. Tire Auto Service Centers
NTB
Pep Boys
Tire Choice Auto Service Centers
Tires Plus
Tuffy Tire & Auto Service Centers
Service
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Monro Auto Service and Tire Centers
Mr. Tire Auto Service Centers
NTB
Pep Boys
Tire Choice Auto Service Centers
Tires Plus
Tuffy Tire & Auto Service Centers
Quick Oil Change
Express Oil Change & Tire Engineers
Grease Monkey
Jiffy Lube
Take 5
Valvoline Instant Oil Change
Walmart
Who should use it
Designed for Service Leaders Across the Aftermarket Ecosystem
• Aftermarket service chains
• Independent repair shops
• Tire retailers
• OEM dealer-service leadership
• Marketing teams promoting award recognition
PowerSource
Insights Available at a Touch of a Button
Subscribers to this study have full access to benchmark reporting, competitor analysis, and more with PowerSource.
