Below is the Scheduled Maintenance for the Volt from the 2011 Owners Manual (via GM Global Service Information)
2011 Volt Owner's Manual Required Services said:Every Month
• Engine oil level check. See Engine Oil .
• Engine, power electronics, and high voltage battery pack coolant level checks. See Cooling System for more information.
• Fluids visual leak check. A leak in any system must be repaired and the fluid level checked.
• Windshield washer fluid level check. See Washer Fluid .
• Tire inflation check. See Tire Pressure .
• Tire wear inspection. See Tire Inspection .
Every 12 000 km/7,500 mi
• Rotate tires. See Tire Rotation .
Every 24 000 km/15,000 mi
• Check the engine oil filter for corrosion if driving in a corrosive environment, such as areas of high humidity, along an ocean coast, and/or areas that apply road salt during winter. Have the engine oil and filter changed if the filter shows signs of corrosion. After each oil and filter change, the oil life system must be reset. See Engine Oil Life System .
• Cooling systems inspection. Visually inspect the hoses, pipes, fittings, and clamps. Replace, if needed.
• Windshield wiper blade inspection for wear, cracking, or contamination and windshield and wiper blade cleaning, if contaminated. See Exterior Care . Worn or damaged wiper blade replacement. See Wiper Blade Replacement .
• Engine air cleaner filter inspection. See Engine Air Cleaner/Filter .
• Brake system inspection. See your dealer.
• Steering and suspension inspection. Visual inspection for damaged, loose, or missing parts or signs of wear.
• Body hinges and latches and key lock cylinders lubrication. See Recommended Fluids and Lubricants . More frequent lubrication may be required when the vehicle is exposed to a corrosive environment, such as areas of high humidity, along an ocean coast, and/or areas that apply road salt during winter. Applying silicone grease on weatherstrips with a clean cloth makes them last longer, seal better, and not stick or squeak.
• Restraint system component check. See Safety System Check .
• Fuel system inspection for damage or leaks.
• Exhaust system and nearby heat shields inspection for loose or damaged components.
• See Propulsion System Start Check .
• See Electric Drive Unit Shift Lock Control Function Check .
• See Park Brake and P (Park) Mechanism Check .
• Cooling systems check. See Cooling System .
• Accelerator pedal check for damage, high effort, or binding. Replace if needed.
• Check the sealant expiration date printed on the instruction label of the tire sealant and compressor kit. See Tire Sealant and Compressor Kit .
• Hood/Decklid/Liftgate Support Gas Strut Service: Visually inspect gas strut, if equipped, for signs of wear, cracks, or other damage. Check the hold open ability of the gas strut. Contact your dealer if service is required.
Every 24 Months or When the Change Engine Oil Soon Message Displays
• Every 24 months or when the CHANGE ENGINE OIL SOON message displays, change the engine oil and filter as soon as possible, within the next 1 000 km/600 mi. The engine oil and filter must be changed at least once every 24 months. After each oil and filter change, the oil life system must be reset. See Engine Oil Life System . More frequent changes may be required when the vehicle is exposed to a corrosive environment, such as areas of high humidity, along an ocean coast, and/or areas that apply road salt during winter.
Your dealer has trained service technicians who will perform this work and reset the system. If the engine oil life system is reset accidentally, service the vehicle within 5 000 km/3,000 mi since the last service. Reset the oil life system whenever the oil is changed.
Every 80 000 km/50,000 mi
• Engine air cleaner filter replacement.
• Evaporative control system inspection. Check all fuel and vapor lines and hoses for proper hook-up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. Replace as needed. An Emission Control Service. The U.S. Environmental Protection Agency or the California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded.
Every 160 000 km/100,000 mi
• Spark plug replacement. An Emission Control Service.
Every 240 000 km/150,000 mi or every 5 years, whichever occurs first
• Engine cooling system drain, flush, and refill (or every five years, whichever occurs first). See Cooling System . An Emission Control Service.
Every 240 000 km/150,000 mi or every 10 years, whichever occurs first
• Engine drive belt inspection for fraying, excessive cracks, or obvious damage. Replace, if needed.
Every 10 Years
• Air conditioning system flush and refill and desiccant replacement.