spark plugs replace JEEP WRANGLER 2021 Owner handbook (in English)

Mileage or time passed (which-
ever comes first)
7,500
15,000
22,500
30,000
37,500
45,000
52,500
60,000
67,500
75,000
82,500
90,000
97,500
105,000
112,500
120,000
127,500
135,000
142,500
150,000
Or Months: 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192 204 216 228 240
Or Kilometers:
12,000
24,000
36,000
48,000
60,000
72,000
84,000
96,000
108,000
120,000
132,000
144,000
156,000
168,000
180,000
192,000
204,000
216,000
228,000
240,000
Replace air conditioning/cabin
air filter.XXXXXX
Replace spark plugs ** X X
Replace accessory drive belt(s).X
Flush and replace the engine
coolant at 10 years or
150,000 miles (240,000 km)
whichever comes first.XX
Change the automatic transmis-
sion fluid and filter.X
Change automatic transmission
fluid and filter if using your ve-
hicle for any of the following:
trailer towing, snow plowing,
heavy loading, taxi, police, deliv-
ery service (commercial service),
off-road, desert operation or
more than 50% of your driving is
at sustained high speeds during
hot weather, above 90°F (32°C).XX
173