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Key Programming Buick LaCrosse 2005-2012

Buick LaCrosse 2005-2012 Key Programming Procedure

 

The following are the key programming procedures for the 2005 and 2012 Buick LaCrosse.

 

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 Buick LaCrosse

The 2010 Buick LaCrosse CXS is the first North American vehicle to feature a front suspension design known as HiPer Strut, which improves ride and handling while reducing torque steer. The Buick LaCrosse CXS has a Real Time Damping system that adjusts the damping forces of the shocks and struts for a better ride and handling.

The interior trunk release mechanism was missing in the models from 2010, 2012, and 2013. Only the key fob (remote keyless entry) or a touch sensor between the trunk lid and the license plate allowed access to the trunk. The 2011 model added a remote release button to the instrument panel to the left of the steering wheel. The trunk release button was returned to the LaCrosse with the 2014 model refresh, but it was relocated to the driver door.

For 2016, the LaCrosse received a new Sport Touring Edition, which included exclusive 18-inch wheels “A rear lip spoiler and aluminum black pocket wheels complete the package.

The base model for the 2012 LaCrosse is a new mild hybrid. The 2012 LaCrosse introduced GM’s second generation belted-alternator starter system, dubbed eAssist. The non-hybrid 4-cylinder engine is no longer available. The system is made up of a 115-volt lithium-ion battery pack, a 15 kW electric motor capable of adding 15 horsepower of assist while accelerating, and the next generation 6T40 GM Hydramatic transmission with lower friction components than the previous generation. The eAssist LaCrosse has a class-leading fuel economy of 25 mpg in the city and 36 mpg on the highway. The BAS-II system, in addition to providing additional power to the 182 hp 2.4-liter 4-cylinder, allows for engine start/stop operation when the vehicle is stationary and complete fuel cut off to the engine during deceleration. The LaCrosse was first sold in Mexico in 2010, when the Buick brand returned to the country after a 13-year absence.

For 2016, the LaCrosse received a new Sport Touring Edition, which included exclusive 18-inch wheels “A rear lip spoiler and aluminum black pocket wheels complete the package.

The second generation LaCrosse was introduced to the Canadian market as the Buick Allure at the 2009 Montreal International Auto Show, and shortly after production began, General Motors Canada renamed the Allure to LaCrosse to correspond with the car’s global marketing. GM Canada has given current Allure owners the option of changing their nameplates to LaCrosse.

The Buick Alpheon was a South Korean-market version of the Buick LaCrosse. Alpheon was a stand-alone brand from General Motors Korea. The vehicles were also outfitted with features such as controls in the rear armrest, mood lighting, and more. At the 2010 Busan International Motor Show, a version of the vehicle (with a 3.0-liter V-6 engine and a six-speed automatic transmission) was unveiled.

On August 9, 2010, production began at GM Daewoo’s factory in Bupyeong, Incheon. In September 2010, the market was launched. In mid-September, a model with a 3.0-liter engine (from the 2010 Buick LaCrosse) will be released, followed by two models with 2.4-liter engines in October.

The Alpheon was phased out in 2015 after monthly sales fell below 500 units. The Chevrolet Impala was introduced in its place by GM Korea.

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