Yes,their website confirms that they changed their drive train warranty
2013 Warranty Information
2012 Warranty Information
FAQ
Warranty Coverage
Purchase or lease a new Buick and your vehicle will be fully backed by GM's warranties. Anyone who purchases or leases a new vehicle will be automatically covered.
Warranty and Coverage
Buick 6-year/70,000-mile Transferable Powertrain Limited Warranty with no deductible2
Buick 6-year/70,000-mile 24/7 Roadside Assistance2
Buick 6-year/70,000-mile Courtesy Transportation2
Buick 8-year/100,000-mile Limited Warranty on certain eAssist components2
Powertrain Coverage
6 years/70,000 miles
Buick will warrant each 2013 model year Buick passenger car, light duty truck - for 6 years or 70,000 miles/110,000 kms. with no deductible, whichever comes first, from the original in-service date of the vehicle, for warrantable repairs which are required as a result of defects due to material and/or workmanship to the Powertrain components as listed below:2
Engine
All internally lubricated parts, engine oil cooling hoses and lines. Also included are all actuators and electrical components internal to the engine (e.g., Active Fuel Management Valve Lifter Oil Manifold), cylinder head, block, timing gears, timing chain, timing cover, oil pump/oil pump housing, OHC carriers, valve covers, oil pan, seals, gaskets, manifolds, flywheel, water pump, harmonic balancer, engine mount, turbocharger, and supercharger. Timing belts are covered until the first scheduled maintenance interval. Exclusions: Excluded from the powertrain coverage are sensors, wiring, connectors, engine radiator, coolant hoses, coolant, and heater core. Coverage on the engine cooling system begins at the inlet to the water pump and ends with the thermostat housing and/or outlet that attaches to the return hose. Also excluded is the starter motor, entire pressurized fuel system (in-tank fuel pump, pressure lines, fuel rail(s), regulator, injectors, and return line) as well as the Engine/Powertrain Control Module and/or module programming.
Transmission/Transaxle
All internally lubricated parts, case, torque converter, mounts, seals, and gaskets as well as any electrical components internal to the transmission/transaxle. Also covered are any actuators directly connected to the transmission (slave cylinder, etc.). Exclusions: Excluded from the powertrain coverage are transmission cooling lines, hoses, radiator, sensors, wiring, and electrical connectors. Also excluded are the clutch and pressure plate as well as any Transmission Control Module and/or module programming.
Transfer Case
All internally lubricated parts, case, mounts, seals, and gaskets as well as any electrical components internal to the transfer case. Also covered are any actuators directly connected to the transfer case as well as the encoder motor. Exclusions: Excluded from the powertrain coverage are transfer case cooling lines, hoses, radiator, sensors, wiring, and electrical connectors as well as the transfer case control module and/or module programming.
Drive Systems
All internally lubricated parts, final-drive housings, axle shafts and bearings, constant velocity joints, propeller shafts and universal joints. All mounts, supports, seals and gaskets as well as any electrical components internal to the drive axle. Also covered are any actuators directly connected to the drive axle (i.e., front differential actuator). Exclusions: Excluded from the powertrain coverage are all wheel bearings, drive wheel front and rear hub bearings, locking hubs, drive system cooling, lines, hoses, radiator, sensors, wiring and electrical connectors related to drive systems as well as any drive system control module and/or module programming.
Courtesy Transportation Program
During the warranty coverage period, this Buick program provides alternate transportation and/or reimbursement of certain transportation expenses under the Courtesy Transportation Program if your vehicle requires warranty repairs. Several transportation options are available. Refer to your Owner Manual for details, including reservation of rights, or consult your dealer.
Roadside Assistance Program
Buick is proud to offer the response, security, and convenience of the 24-hour Roadside Assistance Program for a period of 6 years or 70,000 miles/110,000 kms., whichever comes first. Refer to your Owner Manual for details, or consult your dealer/retailer. The Roadside Assistance contact information is listed in the Customer Assistance Offices section of the Warranty and Owner Assistance Information booklet.
What Is Not Covered
All the above items are not covered for damage due to accident, misuse, alteration, insufficient or improper maintenance, contaminated or poor quality fuel, damage or corrosion due to chemical treatments or Aftermarket products and impact, use, or the environment. For complete details refer to your Warranty and Owner Assistance Information booklet.
This is a supplement to the express conditions and warranties described in the Warranty and Owner Assistance Information booklet. Other coverages are not extended or altered due to this supplement.
For 2007 through 2012 model year passenger car owners requiring a more comprehensive coverage than what is provided with this warranty and the New Vehicle Limited Warranty, an authorized GM service contract (GM Protection Plan) is available through your dealer. These are the only plans recommended by General Motors. See your dealer for details.
Bumper-to-Bumper
Covered for 4 years/50,000 miles
Buick backs your new vehicle with its no-deductible, Bumper-to-Bumper Limited Warranty. The entire vehicle is warranted for repairs, including parts and labor, to correct defects in materials or workmanship, for 4 years or 50,000 miles, whichever comes first (except normal maintenance). Needed repairs will be performed using new, remanufactured, or refurbished parts. The warranty covers towing to the nearest Buick dealership, and there is no deductible for warranty repairs during the warranty period. The warranty transfers automatically with vehicle ownership during the warranty period.2
Corrosion Protection
Covered for 6 years/100,000 miles 2
Buick vehicles are designed and built to resist corrosion. All body and sheet metal components are warranted against rust-through corrosion for 6 years (unlimited mileage). Application of additional rust-inhibiting materials is not required under the corrosion coverage and none is recommended. See your Buick dealer for terms of this limited warranty.
An Important Note about Alterations and Warranties
Installations or alterations to the original equipment vehicle (or chassis) as distributed by General Motors are not covered by the General Motors New Vehicle Limited Warranty. The special body company, assembler, equipment installer, or upfitter is solely responsible for warranties on the body or equipment and any alterations (or any effect of the alterations) to any of the parts, components, systems, or assemblies installed by GM. General Motors is not responsible for the safety or quality of design features, materials, or workmanship of any alterations by such suppliers.
