1 Maintenance schedule for Chevrolet TrailBlazer, Oldsmobile Bravada and GMS Envoy
The service intervals are given in the manual with the expectation that the work will be carried out by the vehicle owner himself. These are the minimum intervals recommended by the manufacturer for daily vehicle operation. If you want to constantly maintain your car in excellent technical condition, you can perform some of the maintenance procedures more often. Frequent servicing is a good thing because it has a positive impact on the vehicle's performance and also increases its selling price. If the vehicle is driven in dusty conditions, constantly tows a trailer, or frequently travels at low speeds (The engine idles a lot when driving around the city), and if you frequently travel short distances, it is recommended to shorten the service intervals.
To maintain the factory warranty, a new vehicle must only be serviced at a dealership. Often, manufacturer representatives prepare a new car for operation at the company’s expense (consult your representative office).
Every 400 km, at least once a week
Check the engine oil level (subsection 4)
Check the coolant level (subsection 4)
Check the fluid level in the windshield washer reservoir (subsection 4)
Check the fluid level in the brake hydraulic system (subsection 4)
Check the condition of the tires and their pressure (subsection 5)
Every 4800 km, at least once every three months
Perform the following operations in addition to those listed above:
- Check the fluid level in the power steering hydraulic system (subsection 6)
- Check the fluid level in the automatic transmission (subsection 7)
- Change the engine oil and oil filter (subsection 8)
Every 9600 km, at least once every six months
Perform the following operations in addition to those listed above:
- Inspect the seat belts (subsection 9)
- Inspect and replace windshield wiper blades if necessary (subsection 10)
- Check the condition and service the battery (subsection 11)
- Inspect the engine drive belt (subsection 12)
- Inspect the hoses located in the engine compartment (subsection 13)
- Check the condition of the cooling system (subsection 14)
- Rearrange the wheels (subsection 15)
- Check the lubricant level in the front (four-wheel drive) and rear axle (subsection 16)
Every 24,000 km, at least once a year
Perform the following operations in addition to those listed above:
- Lubricate the chassis components (subsection 17)
- Check the condition of the fuel system (subsection 18)
- Check the condition of the brake system (subsection 19) *
- Inspect the exhaust system (subsection 20)
- Check the transmission fluid level in the transfer case (four-wheel drive) (subsection 21)
Every 48,000 km, at least once every two and a half years
Perform the following operations in addition to those listed above:
- Replace the brake fluid (subsection 22)
- Replace the air filter (subsection 23)
- Replace the fuel filter (subsection 24)
- Replace spark plugs (regular, not with platinum electrodes) (subsection 25)
- Inspect the rubber covers of the steering, suspension and axle elements (subsection 26)
- Replace the transmission fluid and automatic transmission filter (subsection 27) **
Every 96,000 km, at least once every four years
Replace transfer case transmission fluid (subsection 28)
Replace differential fluid (subsection 29) *
Every 160,000 km, at least once every five years
Replace spark plugs (with platinum electrodes) (subsection 25)
Perform cooling system maintenance (draining, flushing and filling) (subsection 30)
* If the vehicle is used intensively, the intervals for these types of maintenance should be halved. Operation is considered intensive if the following conditions are present.
- Increased dustiness.
- Frequent trailer towing.
- Idle the engine for long periods of time and/or drive at low speeds.
- Low ambient temperatures and frequent trips over 7 km.
** If operation occurs under one or more of the conditions listed below, reduce the interval for this type of maintenance by half.
- Intense urban cycle in mountainous or hilly areas with ambient temperatures around 30°C or higher.
- Frequent trailer towing.
- Crossing a deep stream or river with a car.