An ACDelco GM Original Equipment Ignition Lock Cylinder is a GM-recommended replacement for your vehicle's original component. The ignition lock cylinder is where you insert and turn the key to start the vehicle. When the correct key is inserted, the cylinder is unlocked and can be rotated. The ignition lock cylinder is connected to the ignition switch, and it also engages and disengages the steering column lock. This original equipment ignition lock cylinder has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ <bold>WARNING:</bold> Cancer and Reproductive Harm - <Underline>https://www.P65Warnings.ca.gov</Underline> GM-recommended replacement part for your GM vehicle's original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function Package Dimensions: 4.2 x 4.1 x 2.1 inches Package Weight: 0.53 lb Package Quantity: 1 UPC: 021625439167 ACDelco Market Indicator CA - L0: Y ACDelco Market Indicator US - L0: Y Connector Gender: Female Connector Quantity: 2 FAQ - Answer 1: When your 'Service Engine Soon' light illuminates, that is an indication that there is a potential issue with the drivability, electronics, or emissions of your engine. FAQ - Answer 2: Preventative maintenance should be referenced in your owner's manual, and, while repairing or having your 'Service Engine Soon' light repaired, if your vehicle is due for maintenance, yes. As described in your owner's manual, this maintenance will help prevent future issues. FAQ - Answer 3: Possibly. Sometimes, the triggering device will reset itself thus turning off the 'Service Engine Soon' light until that device/sensor is tested by the vehicles on board computer again. If it fails the test again when tested, the 'Service Engine Soon' light will illuminate once again. Some devices/sensors when tested and failed will illuminate the 'Service Engine Soon' and it will not go out until correct service work is performed. FAQ - Answer 4: General Motors has designed the vehicle to inform its driver if there is an issue with certain devices/sensors that effect the drivability/emissions. If this is ignored, there is a possibility that the drivability will suffer, fuel economy will be decreased, or the emissions being emitted will be increased. Do not ignore the 'Service Engine Soon' light. FAQ - Answer 5: No. When state and local officials perform certified emission tests, one of the first steps in the process is to inspect for a 'Service Engine Soon'. If it is on, it will automatically fail the test. FAQ - Answer 6: No. The 'Service Engine Soon' is related to engine emissions and drivability conditions. Please refer to your owner's manual maintenance schedule for information pertaining to tune up time intervals. FAQ - Question 1: Is there a problem when my 'Service Engine Soon' light appears? FAQ - Question 2: While investigating what triggered the 'Service Engine Soon' light, do you recommend any additional services? FAQ - Question 3: If I don't investigate the problem, will the light turn off by itself? FAQ - Question 4: If I ignore the light, will there be consequences? FAQ - Question 5: Is it possible for my vehicle to pass an emissions test if the 'Service Engine Soon' light is on? FAQ - Question 6: Does the 'Service Engine Soon' light tell me when my vehicle needs a tune-up? Features & Benefits - Bullet 1: This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Features & Benefits - Bullet 2: GM-recommended replacement part for your GM vehicle's original factory component Features & Benefits - Bullet 3: Offering the quality, reliability, and durability of GM OE Features & Benefits - Bullet 4: Manufactured to GM OE specification for fit, form, and function Finish: Dull Good Maintenance Practices - Section 1 - Header: Having your service technician regularly inspect your ignition system can help you stay away from conditions that may result in poor performance or reduced fuel economy. Height (in): 0.95 in Key Programmable: Yes Keys Included: Yes Length (in): 3.95 in Meets or Exceeds Original Equipment Manufacture Specifications: Yes Mounting Hardware Included: No Product Description: An ACDelco GM Original Equipment Ignition Lock Cylinder is a GM-recommended replacement for your vehicle's original component. The ignition lock cylinder is where you insert and turn the key to start the vehicle. When the correct key is inserted, the cylinder is unlocked and can be rotated. The ignition lock cylinder is connected to the ignition switch, and it also engages and disengages the steering column lock. This original equipment ignition lock cylinder has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ <bold>WARNING:</bold> Cancer and Reproductive Harm - <Underline>https://www.P65Warnings.ca.gov</Underline> Programming Required: Yes Signs of Wear & Troubleshooting - Section 1 - Bullet 1: Engine will not start or run Signs of Wear & Troubleshooting - Section 1 - Bullet 2: Reduced Power Signs of Wear & Troubleshooting - Section 1 - Bullet 3: Excessive tailpipe emissions Signs of Wear & Troubleshooting - Section 1 - Bullet 4: Check Engine Light is on Signs of Wear & Troubleshooting - Section 1 - Bullet 5: Engine misfire Signs of Wear & Troubleshooting - Section 1 - Bullet 6: Reduced fuel economy Signs of Wear & Troubleshooting - Section 1 - Header: Due to an internal short or opening, a cracked case, a loose or disconnected power/signal source, loose or disconnected high voltage wires, these problems may occur: Terminal Gender: Female Terminal Quantity: 2 Terminal Type: Blade Weight (lb): 0.07 lb Width (in): 6.4 in Country of Origin: MX