Fluid capacities, tune-up values and fuel economy at a glance.
Engine oil capacity6.0 qtOEM · verified
Engine oil type5W-30 / 0W-30OEM · verified
Fitment & sizes
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 48 · 615 CCA battery, OE oil filter 12731742. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
Battery groupBCI 48 · 615 CCAOEM · verified
Tail / brake / turnLAMPOEM · verified
Tire sizeP255/65R18OEM · verified
Wheel / rim7.5 inOEM · verified
OE service part numbers OEM · verified
Engine oil filter
12731742
Engine air filter
15278634
Spark plug
12681660
Battery
88866309
Front wiper blades
20945800 alt 20945799
Serpentine belt
12654815
Thermostat
12689041
Cabin air filter
20958479
Service quick specs OEM factory data
Capacities, torques and tune-up values from the factory service manual.
This engine holds 6.0 qt of 5W-30 / 0W-30 engine oil, Synthetic · 75W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque the oil drain plug to 15.0 ft-lbs. The firing order is 1-2-3-4-5-6. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
1
22.0 ft. lbs., Step 2: loosen all bolts completely, Step 3: 18.0 ft. lbs., Step 4: 110
22 ft. lbs
Cylinder Head — tightening sequence 2 stages
Prep Do not reuse old bolts. Use new bolts coated with clean engine oil. · M11 Bolts
1
22.0 ft. lbs.
22 ft. lbs
2
150 degrees; M8 Bolts
150 degrees
1
11.0 ft. lbs.
11 ft. lbs
2
75 degrees
75 degrees
Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 97,500 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.
Every 7,500 mi
Accelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · Engine Air Filter Element (inspect) · Engine Oil (inspect fluid level)
Every 22,500 mi
Cabin Air Filter (replace)
Every 45,000 mi
Brake Hydraulic System (drain, refill & bleed) · Fuel Evaporative Emission Control System (inspect)
Every 97,500 mi
Spark Plug Wires (inspect) · Spark Plugs (replace) · Transfer Case Assembly (drain & refill)
At 150,000 mi
Accessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)
Common OBD-II trouble codes
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
6.0 qt of 5W-30 meeting GM Dexos 1 specification or equivalent. Where temperatures fall below -20 degreesF, GM recommends using either an SAE 5W-30 synthetic oil or an SAN 0W-30 oil., per the factory manual.