Feature●Vehicle Fitment: AdvanEX Electronic Throttle body Compatible with Buick Enclave/LaCrosse Cadillac XTS/ATS/SRX/CTS Chevy Impala/Traverse/Equinox/Caprice/Colorado/Camaro GMC Acadia/Canyon/Terrain (For more models, please check the details in FITMENT or the information as below●Interchange OE Number: 12669016 12670981 12632172 TB1291 S20219 TBI020 67-3037●Function: The throttle body is the part of the engine that mixes air with the fuel to allow combustion to take place. When a throttle body gets clogged with carbon, the vehicle may suffer from issues ranging from a lack of fuel mileage, loss in efficiency or may even become totally inoperable.●When you need to replace the throttle body: ①If the engine light and/or reduced power warning light is on, the mechanic will determine if any of the stored trouble codes implicate a throttle body malfunction. ② Wrong idle speed. ③Poor transmission shifting.●After-Sale Service: AdvanEX strives to provide customers with the best service. Please contact us if you have any question regarding our this product, we provide a one-year warranty we will give you a satisfactory response within 24 hours.Description