These vehicles are being recalled because the headlamp driver module (HDM) can overheat and fail. This will cause the headlights and daytime running lights to stop working. Loss of this lighting will affect the ability of the driver to see the road and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash. The remedy for this problem is still under development and not yet available.
Buick LaCrosse Recalls
The driver's and/or passenger's seat may suddenly drop to its lowest position because a bolt securing the height adjuster can fall out. This unexpected movement of the driver's seat could cause a distraction, increasing the risk of a crash. Dealers will replace the height adjuster bolts in both front seats to correct this concern.
Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Dealers will install two 13mm key rings and key insert into the vehicle's ignition keys to correct this concern.
Certain vehicles equipped with 17 inch front brake rotors are being recalled because during vehicle assembly, brake rotors intended for the rear may have been installed on the front. The rear rotors, while the same diameter, are thinner and may result in a front brake pad detaching from the caliper. Braking ability would be reduced suddenly if a brake pad were to detach. The resulting increased stopping distance would increase the risk of a crash. Dealers will inspect the front brake rotors, and install the correct rotors with new brake pads, as necessary to correct this concern.
eAssist is a hybrid drive system that includes an electric motor to assist the gas engine under certain driving conditions. These vehicles are being recalled because there may be an internal fault with the Generator Control Module (GCM). The module could allow the battery to discharge to the point were the vehicle could stall and/or not start. Also, a burning smell, smoke, and/or a fire could develop in the trunk. Dealers will inspect and replace the GCM to correct this concern.
When driving, if you let your foot off the accelerator, the engine will provide some braking effect unless your transmission is in "Sport" mode. Certain vehicles are being recalled because the transmission may unexpectedly shift into its "Sport" mode, removing the engine braking effect on these vehicles. Unexpected loss of engine braking can increase stopping distance, increasing the risk of a crash. Dealers will update the software in the transmission control module to correct this concern.
The anti-skid (stabilitrak) system may have an incorrect calibration, which can cause the system not to properly detect a sensor malfunction. A malfunctioning sensor may cause the stabilitrak (ESC) to falsely activate, resulting in sudden changes in vehicle handling and deceleration. These unexpected changes in vehicle handling may cause a loss of vehicle control. Dealers will update the electronic brake control module (EBCM) software to correct this concern. The General Motors recall number is 11222.
The HVAC system may stop functioning due to a software issue in the climate control module. System failure would reduce the driver's ability to command the defrost function. This can reduce visibility, increasing the risk of a crash. To correct the problem, dealers will reprogram the electronic control module for the HVAC. The recall is expected to begin by March 11, 2011. The General Motors recall number is 11057.
On some vehicles, the fuel tank may be missing the adhesive that bonds the barrier layer to the outer shell. This may allow fuel and/or fuel vapors to leak out between the layers, increasing the risk of fire. Dealers will inspect the serial numbers on the fuel tank and replace it if needed. The recall began November 13, 2006. The GM recall number is 06160.