GM Genuine Parts Ignition Lock Cylinder (Programming Required)
OE
Pack of 1

GM Genuine Parts Ignition Lock Cylinder (Programming Required)

GM Part #15815961

ACDelco Part #15815961

MSRP$94.45*

GM Genuine Parts Ignition Lock Cylinder Sets are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • 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
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors

Pack of 1

About this product

GM Genuine Parts Ignition Lock Cylinder Sets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. It comes with everything you need to replace a broken or worn ignition lock cylinder with an GM Genuine replacement lock cylinder. The ignition lock cylinder is where you insert and turn the key to engage your vehicle's engine and electrical accessories. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • 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
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

Product Specifications

MaterialPlastic/Metal
ClassificationOE
Keys IncludedNo
Face Ring ColorBlack
Tumbler MaterialMetal
Core MaterialMetal

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

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:

  • Engine will not start or run
  • Reduced Power
  • Excessive tailpipe emissions
  • Check Engine Light is on
  • Engine misfire
  • Reduced fuel economy

ModelBody StyleTrimYear(s)
Astro1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Blazer1999, 2000, 2001, 2002
C7500 KodiakCab & Chassis - Conventional2002
Express 15001999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Express 25001999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Frequently Asked Questions

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.

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.

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.

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.

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.

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.