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, transmission, 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. See Accessories and Modifications on page 397.

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.

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Cadillac 2007 owner manual
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2007 specifications

The 2007 Cadillac lineup showcased a blend of luxury, performance, and innovative technology that exemplified the brand’s commitment to quality and elegance. With models like the Cadillac CTS, STS, and Escalade, Cadillac aimed to cater to the diverse preferences of luxury car enthusiasts.

The 2007 Cadillac CTS was a standout model, renowned for its bold design and dynamic performance. Sporting a more aggressive exterior compared to its predecessors, the CTS featured a distinctive front grille and sharp lines that highlighted its sporty character. Under the hood, buyers had the option of a 2.8-liter V6 engine producing 210 horsepower or a more robust 3.6-liter V6 engine delivering 255 horsepower. Both engines were paired with a smooth-shifting six-speed automatic transmission, offering a blend of power and efficiency.

One of the significant technological advancements in the 2007 CTS was its availability of the Cadillac User Experience (CUE) system. This advanced infotainment system included a touchscreen interface, Bluetooth connectivity, and a premium audio system, providing drivers with seamless access to entertainment and navigation.

The Cadillac STS, another model from the 2007 lineup, catered to those seeking a luxurious sedan experience. Offering a spacious interior wrapped in premium materials, the STS featured heated leather seats and an intuitive dashboard layout. Power options ranged from a 3.6-liter V6 to a powerful 4.6-liter V8 engine, which allowed for an exhilarating driving experience. The STS also included innovative safety features such as an advanced airbag system and electronic stability control, ensuring peace of mind during every drive.

The Cadillac Escalade, a flagship SUV, epitomized luxury in the 2007 lineup. With its commanding presence and spacious interior, the Escalade won over families and celebrities alike. Offering a 6.2-liter V8 engine, it produced an impressive 403 horsepower, allowing it to excel in performance despite its size. High-quality materials adorned the cabin, and amenities like a rear-seat entertainment system and Bose surround sound system elevated the driving experience.

Overall, the 2007 Cadillac models combined luxurious features, cutting-edge technology, and robust performance, solidifying Cadillac's place as a leader in the luxury automotive market. These vehicles were designed not just to meet the expectations of discerning customers but to exceed them, setting a standard for future releases in the automotive industry.
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