SERVICING AND MAINTENANCE- Page 414

2021 Jeep Gladiator Owner's Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
WARNING LIGHTS AND MESSAGES
STARTING AND OPERATING
MULTIMEDIA
SAFETY
OCCUPANT RESTRAINT SYSTEMS
SERVICING AND MAINTENANCE
VEHICLE MAINTENANCE
TECHNICAL SPECIFICATIONS
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412

SERVICING AND MAINTENANCE

 

Inspect and replace PCV valve if 

necessary.

X

Change front and rear axle fluid if 

using your vehicle for police, taxi, 

fleet, off-road or frequent trailer 

towing.

X

X

X

1. The spark plug change interval is mileage-based only, yearly intervals do not apply.

Mileage or time passed (whichever 

comes first)

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

130,000

140,000

150,000

Or Years:

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Or Kilometers:

32,000

48,000

64,000

80,000

96,000

112,000

128,000

144,000

160,000

176,000

192,000

208,000

224,000

240,000

WARNING!

You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. 

If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This 

could cause an accident.

21_JT_OM_EN_USC_t.book  Page 412  

Detailed Information for 2021 Jeep Gladiator Owner's Manual

Lists of information found in 2021 Jeep Gladiator Owner's Manual - Page 414

  • 1. The spark plug change interval is mileage-based only, yearly intervals do not apply.

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