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2021 Chevrolet Trailblazer Specs: Oil Capacity, Fluids, Maintenance Schedule & Fuse Box

Figures for the 2021 Chevrolet Trailblazer, copied from Chevrolet’s own owner’s manual. Every one links to the manual page it came from.

From the manufacturer’s manuals. Every figure here is copied from the manufacturer's own manual, with a link to the page it came from. Where a manual is unclear or contradicts itself, we leave the figure out.

Engines in this manual: 1.2L L3, 1.3L L3. Figures that differ by engine say which engine they are for.

Fluids & capacities

All engines

1.2L L3

1.3L L3

Maintenance schedule

Normal service schedule

Use this for ordinary driving.

ServiceWhen
Replace oil pump drive belt and timing belt. (LIH 1.2L L3 Engine Only). (11)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 319

150,000 mi
Replace passenger compartment air filter. (2)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 319

Every 22,500 mi(36,000 km)
Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed. Check engine air filter life percentage and status. Change engine air filter, if needed. (1)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 319

Every 7,500 mi(12,000 km)

Severe service schedule

Use this if you tow, idle a lot, drive short trips in the cold, or run in dust.

ServiceWhen
Change automatic transmission fluid and filter. (Continuously Variable Ratio Transmission (CVT) Only)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 321

Every 45,000 mi(72,000 km)
Replace oil pump drive belt and timing belt. (LIH 1.2L L3 Engine Only). (11)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 321

150,000 mi
Replace passenger compartment air filter. (2)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 321

Every 22,500 mi(36,000 km)
Rotate tires and perform Required Services. Check engine oil level and oil life percentage. Change engine oil and filter, if needed. Check engine air filter life percentage and status. Change engine air filter, if needed. (1)

Source: 2021 Chevrolet Trailblazer Owner Manual, page 321

Every 7,500 mi(12,000 km)

Oil life & reset procedures

Engine oil life system reset

Before you start

  • Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change.

Steps

  1. Display REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC) (Base Level) 0 104 or Driver Information Center (DIC) (Uplevel) 0 107. This display shows an estimate of the oil's remaining useful life. If 99% is displayed, that means that 99% of the current oil life remains.
  2. Press and hold l or the thumbwheel while the Oil Life display is active. Confirm reset and the oil life will change to 100%.
  3. Press l or the thumbwheel to move to the Reset/Disable display area. Select Reset then press l or press the thumbwheel for several seconds.
  4. Press l or the thumbwheel to confirm the reset.

You’ll know it worked: Confirm reset and the oil life will change to 100%.

Source: 2021 Chevrolet Trailblazer Owner Manual, page 252

Fuse box locations & fuse chart

Instrument Panel Fuse Block

Where to find it

Instrument Panel Fuse Block The instrument panel fuse block is on the underside of the driver side instrument panel.

To access the fuses, remove the storage compartment.

Source: 2021 Chevrolet Trailblazer Owner Manual, page 277

Diagrams in the manual

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Other Chevrolet Trailblazer years