Insights that Drive Smarter Vehicle Decisions
Since 2011, the CarMD Vehicle Health Index has tracked vehicle reliability, repair costs and check engine light trends across America. We reveal what vehicle repairs are being performed – and how costs, parts and reliability are changing across the automotive landscape.
Drivers Generate Data
CarMD Analyzes Repair Trends
Patterns Identified
Drivers and Industry Make Better Decisions
Trusted by drivers, media outlets and automotive aftermarket businesses
Consumers use it to understand repair trends and costs.
Journalists use it to explain what’s happening in the automotive market.
Parts manufacturers, repair shops and retailers use it to anticipate demand.
See what the latest data reveals about car repairs and repair costs.
A car’s check engine light monitors emissions and drivetrain issues.
Ignoring it will hurt the environment, reduce fuel economy, and lead to more problems (and costs) down the road.
1. Catalytic Converter
$1,511
2. Oxygen Sensor
$287
3. Ignition Coil & Spark Plugs
$480
4. Mass Airflow Sensor (MAF)
$346
5. Ignition Coil
$256
IN 2025
THE AVERAGE CHECK ENGINE
LIGHT REPAIR COST REACHED
AN ALL-TIME HIGH OF $554.
10 YEAR LOOK
