Buick E2UB-N Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583509) - 2021 - CRC - 1/8/21
318
Service and Maintenance
Maintenance Schedule Additional
Required Services - Severe
12
000
km/7,500
mi
24
000
km/15,000
mi
36
000
km/22,500
mi
48
000
km/30,000
mi
60
000
km/37,500
mi
72
000
km/45,000
mi
84
000
km/52,500
mi
96
000
km/60,000
mi
108
000
km/67,500
mi
120
000
km/75,000
mi
132
000
km/82,500
mi
144
000
km/90,000
mi
156
000
km/97,500
mi
168
000
km/105,000
mi
180
000
km/112,500
mi
192
000
km/120,000
mi
204
000
km/127,500
mi
216
000
km/135,000
mi
228
000
km/142,500
mi
240
000
km/150,000
mi
Rotate tires, if recommended for the vehicle, and perform
Required Services. (1) Check engine oil level and oil life per-
centage. Change engine oil and filter, if needed.
Check engine air filter life percentage and status. Change
engine air filter, if needed.
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Replace passenger compartment air filter. (2)
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Replace spark plugs. Inspect spark plug wires and/or boots.
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Change rear axle fluid, if equipped with AWD. (3)
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Change automatic transmission fluid.
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Drain and fill engine cooling system. (4)
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Visually inspect accessory drive belts. (5)
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Replace brake fluid. (6)
Replace front and rear wiper blades. (7)
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Replace hood and/or body lift support gas struts. (8)
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Replace air conditioning desiccant. (9)
Footnotes
—
Maintenance Schedule
Additional Required Services - Severe
(1)
Vehicles with different size front and rear
tires do not have tire rotation. See
.
(2)
Or every two years, whichever comes
first. More frequent passenger compartment
air filter replacement may be needed if
driving in areas with heavy traffic, poor air
quality, high dust levels, or environmental
allergens. Passenger compartment air filter
replacement may also be needed if there is
reduced airflow, window fogging, or odors.
Your GM dealer can help determine when to
replace the filter.
(3)
Do not directly power wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the transfer case fluid.