GMC Sierra 2007-2013 Key Programming Procedure
The following are the key programming procedures for the 2007 and 2013 Chevrolet Sierra.
ADD DUPLICATE KEY (Requires at least one working key):
1. Verify that the new key has “PK3” or “+” stamped on it.
2. Insert the original, already programmed key into the ignition lock cylinder and start the engine. If the engine will not start, see your dealer for service.
3. After the engine has started, turn the key to LOCK/OFF and remove the key.
4. Insert the key to be programmed and turn it to ON/RUN within 10 seconds of removing the previous key. The security light will turn off once the key has been programmed. It may not be apparent that the security light went on due to how quickly the key is programmed. (If your vehicle does not have a security light (04-07 Grand Prix, Bonneville, Impala), wait 10 minutes 45 seconds to make sure the key has been programmed).
5. Repeat steps 1 through 4 if additional keys are to be programmed.
About GMC Sierra
The Chevrolet Silverado and the GMC Sierra are mechanically similar, albeit GMC discontinued the C/K nomenclature a model generation before Chevrolet. Chevrolet Cheyenne is the moniker given to heavy-duty versions of the Silverado in Mexico. The Chevrolet Silverado, which competes against the Ford F-Series, Dodge Ram, Nissan Titan, and Toyota Tundra, is one of the best-selling cars in the United States, having sold nearly 12 million units since its inception.
In August 1998, the GMT800 Silverado/Sierra 1500 and 2500 pickup trucks were debuted as 1999 models. The “old” light-duty GMT400 C/K trucks were kept in production alongside the new models for the first year, and the Heavy-Duty GMT400 pickups (together with the GMT400 SUVs) were kept in production until 2000, when the new GMT800 Silverado/Sierra HD (Heavy Duty) was introduced a year later. In 2002, a minor update for 2003 models was released, with minor design changes and an upgrade to the audio and HVAC controls. Classic was the moniker given to the later 2007.5 GMT800 production unit to distinguish it from the first and second generation trucks.
In January 1993, GM began work on the GMT800 pickup program, bringing together a number of different teams. By the end of 1994, a final design had been selected and approved for manufacturing, which began in June 1995, 36 months ahead of schedule. Late in 1997, development approval was given, and pre-production and series production began in June 1998.
Light-duty Silverados and Sierras come in a variety of variants, including half-ton, SS, and Hybrid.
The 1500 is the designation for light-duty trucks. Two-door standard/regular cab, three- or four-door extended cab, and front-hinged four-door crew cab are the three cab lengths available. A 69.2 in (1,758 mm) short box, a 78.7 in (1,999 mm) standard box, and a 97.6 in (2,479 mm) long box are offered. Only the crew cab and extended cab come with the short box.
Only the conventional cab and a 3-door extended cab were available for the initial year, along with the Vortec 4300 V6, Vortec 4800 V8, and Vortec 5300 V8 engines. The extended cab gained a driver’s side door option in 2000, giving it four doors, and the crew-cab body was added to the selection in 2004. The 5.3 L engine now produces 285 horsepower (213 kW) and 325 lbft (441 Nm) of torque.
The 6.0 L Vortec 6000 V8 engine, rated at 300 hp (224 kW) and added for the 2001 Heavy Duty versions, was standard on the 2500 and was uprated to 325 hp (242 kW) on the GMC Sierra 1500 C3. The Silverado Z71 had a lighter composite box as an option, as well as a towing suspension package, but it lacked the high-output engine. For 2002, the C3 was renamed Denali, and Quadrasteer was included.
In 2003, GM released a redesigned Silverado and Sierra with a new front end and a slightly upgraded rear end. The Silverado received another redesign in 2006, comparable to the HD variants released in 2005. In addition, the “Chevrolet” insignia on the tailgate, which was used from 1998 to 2005, has been removed. The pre-facelift sheetmetal was preserved on its SUV competitors. As a cost-cutting effort for the 2005 model year, all light-duty GMT800 pickups switched to front disc/rear drum brakes; heavy-duty trucks and SUVs kept their 4-wheel disc brakes.
Although no injuries were reported on the dummy’s body areas, the Insurance Institute for Highway Safety (IIHS) assigned the Silverado an overall “marginal” grade on the frontal offset crash test for weak structural integrity and poor dummy control.