2003 Acura TL Inspections

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Free Checks for Priceless Peace of Mind

Want to make sure your Acura TL is running just as it should? Schedule a Courtesy Check today.

Schedule an Appointment

Your 2003 Acura TL’s Recommended Maintenance Schedule

When should your 2003 Acura TL get an inspection? Select your vehicle from the dropdown menu to learn more.

7,500 Miles

Maintenance check at 7500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

15,000 Miles

Maintenance check at 15000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

22,500 Miles

Maintenance check at 22500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

30,000 Miles

Maintenance check at 30000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

37,500 Miles

Maintenance check at 37500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

45,000 Miles

Maintenance check at 45000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

52,500 Miles

Maintenance check at 52500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

60,000 Miles

Maintenance check at 60000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

67,500 Miles

Maintenance check at 67500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

75,000 Miles

Maintenance check at 75000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

82,500 Miles

Maintenance check at 82500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

90,000 Miles

Maintenance check at 90000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

97,500 Miles

Maintenance check at 97500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

105,000 Miles

Maintenance check at 105000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Idle Speed
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Valve Clearance
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

112,500 Miles

Maintenance check at 112500 miles for your 2003 Acura TL Base

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

120,000 Miles

Maintenance check at 120000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

180,000 Miles

Maintenance check at 180000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

210,000 Miles

Maintenance check at 210000 miles for your 2003 Acura TL Base

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Idle Speed
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Valve Clearance
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

7,500 Miles

Maintenance check at 7500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

15,000 Miles

Maintenance check at 15000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

22,500 Miles

Maintenance check at 22500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

30,000 Miles

Maintenance check at 30000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

37,500 Miles

Maintenance check at 37500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

45,000 Miles

Maintenance check at 45000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

52,500 Miles

Maintenance check at 52500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

60,000 Miles

Maintenance check at 60000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

67,500 Miles

Maintenance check at 67500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

75,000 Miles

Maintenance check at 75000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

82,500 Miles

Maintenance check at 82500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

90,000 Miles

Maintenance check at 90000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody

97,500 Miles

Maintenance check at 97500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

105,000 Miles

Maintenance check at 105000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Idle Speed
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Valve Clearance
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

112,500 Miles

Maintenance check at 112500 miles for your 2003 Acura TL Type-S

  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Front Brake System
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

120,000 Miles

Maintenance check at 120000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

180,000 Miles

Maintenance check at 180000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Drive Belts
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends

210,000 Miles

Maintenance check at 210000 miles for your 2003 Acura TL Type-S

  • INSPECT Brake Hoses & Lines
  • INSPECT Brake Lines & Cables
  • INSPECT Driveshaft/Propeller Shaft Dust Boots
  • INSPECT Engine Cooling System Hoses & Clamps
  • INSPECT Exhaust System
  • INSPECT Fluid & Lubricant Levels
  • INSPECT Front Brake System
  • INSPECT Fuel Lines & Connections
  • INSPECT Idle Speed
  • INSPECT Lights & Controls
  • INSPECT Parking Brake
  • INSPECT Rear Brake System
  • INSPECT Steering Gear Box
  • INSPECT Steering Rack Boots
  • INSPECT Suspension Components
  • INSPECT Tie Rod Ends
  • INSPECT Valve Clearance
  • INSPECT Vehicle Underbody
  • INSPECT Water Pump

2003 Acura TL Courtesy Inspection

At Firestone Complete Auto Care, we perform a multi-point Courtesy Check during any vehicle service. It's one of the best ways to better understand your Acura TL's maintenance needs and address any issues as early as possible. What will be inspected during a Courtesy Check? First, a technician will pop the hood on your Acura TL and test the battery to find out how much charge is remaining on it. We know that the best time to replace your battery is before you need to. The check will continue with a visual inspection of your Acura TL's filters, lights, wiper blades, alignment, tires, hoses, belts and fluid levels. At the end of your Courtesy Check, we’ll give you a detailed report of what we found. Does a Courtesy Check cost anything? Nope. Courtesy Checks are free. Time spent caring for your car is time well spent, indeed!

Acura TL Complete Vehicle Inspections

We perform a Courtesy Check any time you bring your car to a local Firestone Complete Auto Care for service, but we also offer an in-depth Complete Vehicle Inspection for your 2003 Acura TL. The Complete Vehicle Inspection service can help find the root of any new issues in your vehicle. In addition to a visual check of everything that's included in a Courtesy Check, a Complete Vehicle Inspection also includes a hands-on examination of your steering and suspension system, brakes, and exhaust components. This inspection is aimed at informing you of any major problems that could require preventative maintenance. We’re here to help you take care of your Acura TL and keep it running newer, longer.

State Inspection Testing for Acura TL

Depending on your location, you may be able to take care of your state inspection or safety test at your local Firestone Complete Auto Care. Specific requirements for these types of inspections vary by state. Call your store ahead of time to confirm that this service is offered.

2003 Acura TL Vehicle Inspection Q and A

  • How much does a Complete Vehicle Inspection cost for Acura TLs? We know you want to be wise with your car – and with your budget. That’s why we regularly offer discounts and coupons for vehicle inspections and other vital services. If you’d like a free estimate for your 2003 Acura TL, call your nearest Firestone Complete Auto Care today.
  • When does my Acura TL need an inspection? You drive your car, day in and day out, so you know it best. If you notice unusual engine noises or you can’t shake the feeling that something is "off," start with a Courtesy Check to stay ahead of potential issues.
  • My 2003 Acura TL failed the state inspection test. Can you fix it? Don’t panic! Come in for a complete inspection today and we’ll find (and repair) the root cause before you have your vehicle retested.