This system is called OBD II (On-Board Diagnostics-Second Generation) and is intended to assure that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment. The CHECK ENGINE light comes on to indicate that there is a problem and service is required. Malfunctions often will be indicated by the system before any problem is apparent. This may prevent more serious damage to your vehicle. This system is also designed to assist your service technician in correctly diagnosing any malfunction.

Notice: If you keep driving your vehicle with this light on, after awhile, your emission controls may not work as well, your fuel economy may not be as good, and your engine may not run as smoothly. This could lead to costly repairs that may not be covered by your warranty.

Notice: Modifications made to the engine, transaxle, exhaust, intake, or fuel system of your vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect your vehicle’s emission controls and may cause this light to come on. Modifications to these systems could lead to costly repairs not covered by your warranty. This may also result in a failure to pass a required Emission Inspection/Maintenance test.

This light should come on, as a check to show you it is working, when the ignition is on and the engine is

not running. If the light does not come on, have it repaired. This light will also come on during a malfunction in one of two ways:

•Light Flashing — A misfire condition has been detected. A misfire increases vehicle emissions and may damage the emission control system on your vehicle. Diagnosis and service may be required.

•Light On Steady — An emission control system malfunction has been detected on your vehicle. Diagnosis and service may be required.

If the Light Is Flashing

The following may prevent more serious damage to your vehicle:

•Reducing vehicle speed

•Avoiding hard accelerations

•Avoiding steep uphill grades

•If you are towing a trailer, reduce the amount of cargo being hauled as soon as it is possible

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Chevrolet 2005 owner manual If the Light Is Flashing
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2005 specifications

The 2005 Chevrolet lineup presented a range of vehicles that were notable for their blend of performance, comfort, and advanced technology. One of the standout models was the Chevrolet Silverado, a full-size pickup truck that offered an impressive range of trims and configurations. With powerful V6 and V8 engine options, the Silverado was well-suited for both work and leisure. Its robust towing capacity and spacious cabin made it a favorite among truck enthusiasts who required utility without compromising on comfort.

Another highlight of 2005 was the Chevrolet Equinox, a mid-size crossover SUV that entered the market with a focus on practicality and versatility. With a spacious interior and flexible seating arrangements, the Equinox catered to families and active individuals alike. Its standard safety features, including anti-lock brakes and multiple airbags, underscored Chevrolet's commitment to passenger safety.

For those seeking a sportier option, the Chevrolet Corvette remained a symbol of American performance. The 2005 Corvette featured a sleek design and a powerful 6.0-liter V8 engine that delivered exhilarating acceleration. With its lightweight construction and advanced suspension system, the Corvette offered precision handling, making it a joy to drive on both the track and the open road. The interior was equally impressive, featuring high-quality materials and modern technology, including a premium sound system.

In terms of technology, Chevrolet was ahead of the curve in 2005. Many models came equipped with the OnStar system, providing features like navigation, emergency assistance, and stolen vehicle recovery. Additionally, the incorporation of advanced audio systems and Bluetooth connectivity options allowed drivers to stay connected while on the go.

Chevrolet also focused on fuel efficiency during this year, with several models featuring innovative engine designs and lightweight materials that improved overall gas mileage. The introduction of hybrid technology in certain models marked a step towards a more environmentally conscious lineup.

Overall, the 2005 Chevrolet models combined style, performance, and practicality, appealing to a broad audience of drivers. With a commitment to innovation and quality, Chevrolet solidified its status as a leader in the automotive industry during this era, paving the way for future advancements.
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