JEEP GRAND CHEROKEE 2023 Owners Manual

SERVICING AND MAINTENANCE369
F29A –10 Amp RedMOD ICS Switch Bank Rear (Frt
Console)
F29B Spare
F30 30 Amp Pink –MOD Memory / Power Seat (Driver
Frt)
F31 ––Spare
F32 ––Spare
F33 ––Spare
F34 30 Amp Pink –MOD Door MUX Driver
F35 25 Amp Clear –Trailer Tow Module #2
F36A –10 Amp RedIntelligent Event Base Lighting
Module
F36B Port Pwr USB Console (USB CH Only) /
Port UCI Dual USB Rear
F37 25 Amp Clear –Trailer Tow Module #1
F38 ––Spare
F39 ––Spare
F40 –30 Amp GreenMod Audio Amplifier #1A
F41 ––Spare
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
8

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370SERVICING AND MAINTENANCE
F42A –10 Amp RedSpare
F42B
Rear Entertainment Screens 1
(Res1) / (Res2) / Media Hub #2 RR
Wake Up / Media Hub #3 Wake Up /
APO Illumination / 2nd - 3rd Row
Seat Switches-Illumination

F43 ––Spare
F44A –20 Amp Yellow12 Volt Power Outlet Cargo Area (Ign)
F44B 12 Volt Power Outlet Cargo Area
(Battery)
F45 –20 Amp YellowMOD CRSM (Heated Seat RR RT)
F46 30 Amp Pink –Folding Seat Module 3rd Row Feed
#1*
F47 ––Spare
F48 ––Spare
F49 ––Spare
F50 –15 Amp BlueSeat Massage Driver Mod (SSMD) /
Seat Massage Passenger Mod
(SSMP)*
F51 –30 Amp GreenMOD IAir Suspension (Valves)
F52 –20 Amp YellowMOD CRSM (Heat Seat RR LT)*
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped

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SERVICING AND MAINTENANCE371
F53 30 Amp Pink –Electronic Limited Slip Differential
(ELSD) Rear #1
F54 ––Spare
F55 30 Amp Pink –MOD Inverter
F56 30 Amp Pink –Folding Seat Module 3rd Row Feed
#2*
F57 ––Spare
F58 –15 Amp Blue3rd Row Additional USB charge (Only
LT - RT) / Port Pwr USB Console UBS
(CH Only)
F59 ––Spare
F60 ––Spare
F61 ––Spare
F62 –20 Amp YellowModule Seat Heater Frt (Driver)*
F63 30 Amp Pink –Assy Trailer Tow Receptacle B+
F64 ––Spare
F65 ––Spare
F66 20 Amp Blue –MOD Door MUX Passenger Rear -
Smart Motor
Cavity
Cartridge Fuse Micro FuseDescription
* If Equipped
8

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372SERVICING AND MAINTENANCE
F67 –30 Amp GreenMOD Audio Amplifier #1B
F68 ––Spare
F69 –20 Amp YellowL2+ Central ADAS Decision Module
(CADM) MID*
F70 –10 Amp RedVideo Routing Module (VRM) / Port
Power - USB IP (USB Ch Only)
F71 ––Spare
F72 ––Spare
F73 ––Spare
F74 –5 Amp Tan
L2+ Intelligent Battery Sensor (IBS) - 2*

F75 ––Spare
F76 ––Spare
F77 ––Spare
F78 50 Amp Red –MOD IAir Suspension
F79 ––Spare
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped

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SERVICING AND MAINTENANCE373
F80 ––Spare
F81 –20 Amp YellowModule Seat Heater Frt (PASS)*
F82 –10 Amp RedSW Seat Heater (RR RT - RR LT)*
F83 ––Spare
F84 ––Spare
F85 ––Spare
F86 –15 Amp BlueLumbar Support Driver - Passenger
SW*
F87 ––Spare
F88 20 Amp Blue –MOD Door MUX Driver Rear - Smart
Motor
Cavity
Cartridge Fuse Micro FuseDescription
* If Equipped
8

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374SERVICING AND MAINTENANCE
BULB REPLACEMENT
Replacement Bulbs, Names, And Part
Numbers
In the instance a bulb needs to be replaced, this
section includes bulb description and replacement
part numbers.
Interior Bulbs
The Interior lights are LED, for replacement of any
LED lamps, see an authorized dealer.
Exterior Bulbs
The exterior lights are LED, for replacement of any
LED lamps, see an authorized dealer.
TIRES
TIRE SAFETY INFORMATION
Tire safety information will cover aspects of the
following information: Tire Markings, Tire
Identification Numbers, Tire Terminology and
Definitions, Tire Pressures, and Tire Loading.
Tire Markings

Tire Markings

NOTE:
P (Passenger) — Metric tire sizing is based on US
design standards. P-Metric tires have the letter
“P” molded into the sidewall preceding the size
designation. Example: P215/65R15 95H.
European — Metric tire sizing is based on Euro -
pean design standards. Tires designed to this
standard have the tire size molded into the side -
wall beginning with the section width. The letter
"P" is absent from this tire size designation.
Example: 215/65R15 96H.
LT (Light Truck) — Metric tire sizing is based on
US design standards. The size designation for
LT-Metric tires is the same as for P-Metric tires
except for the letters “LT” that are molded into
the sidewall preceding the size designation.
Example: LT235/85R16.
Temporary spare tires are designed for tempo -
rary emergency use only. Temporary high pres -
sure compact spare tires have the letter “T” or
“S” molded into the sidewall preceding the size
designation. Example: T145/80D18 103M.
High flotation tire sizing is based on US design
standards and it begins with the tire diameter
molded into the sidewall. Example: 31x10.5
R15 LT.
1 — US DOT Safety Standards Code
(TIN)
2 — Size Designation
3 — Service Description
4 — Maximum Load
5 — Maximum Pressure
6 — Treadwear, Traction and
Temperature Grades

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SERVICING AND MAINTENANCE375
TIRE SIZING CHART
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
"....blank...." = Passenger car tire based on European design standards, or
LT = Light truck tire based on US design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)
Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
"R" means radial construction, or
"D" means diagonal or bias construction
15, 16, 18 = Rim diameter in inches (in)
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376SERVICING AND MAINTENANCE
Service Description:
95 = Load Index
A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions
The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading,
road conditions, and posted speed limits)
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:
XL = Extra load (or reinforced) tire, or
LL = Light load tire or
C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire
EXAMPLE:

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SERVICING AND MAINTENANCE377
Tire Identification Number (TIN)
The TIN may be found on one or both sides of the tire; however, the date code may only be on one side. Tires with white sidewalls will have the full TIN, including
the date code, located on the white sidewall side of the tire. Look for the TIN on the outboard side of black sidewall tires as mounted on the vehicle. If the TIN is
not found on the outboard side, then you will find it on the inboard side of the tire.
EXAMPLE:
DOT MA L9 ABCD 0301
DOT = Department of Transportation
This symbol certifies that the tire is in compliance with the US Department of Transportation tire safety standards and is approved for highway use
MA = Code representing the tire manufacturing location (two digits)
L9 = Code representing the tire size (two digits)
ABCD = Code used by the tire manufacturer (one to four digits)
03 = Number representing the week in which the tire was manufactured (two digits)
03 means the 3rd week
01 = Number representing the year in which the tire was manufactured (two digits)
01 means the year 2001
Prior to July 2000, tire manufacturers were only required to have one number to represent the year in which the tire was manufactured. Example: 031 could
represent the 3rd week of 1981 or 19918

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378SERVICING AND MAINTENANCE
Tire Terminology And Definitions
Term Definition
B-pillarThe vehicle B-pillar is the structural member of the body located behind the
front door.
Cold Tire Inflation Pressure Cold tire inflation pressure is defined as the tire pressure after the vehicle has
not been driven for at least three hours, or driven less than 1 mile (1.6 km)
after sitting for a minimum of three hours. Inflation pressure is measured in
units of psi (pounds per square inch) or kPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible cold tire
inflation pressure for this tire. The maximum inflation pressure is molded into
the sidewall.
Recommended Cold Tire Inflation Pressure Vehicle manufacturer's recommended cold tire inflation pressure as shown
on the tire placard.
Tire Placard A label permanently attached to the vehicle describing the vehicle’s loading
capacity, the original equipment tire sizes and the recommended cold tire
inflation pressures.

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