Jeep 2008 Grand Cherokee User Manual

Normal Starting — Gasoline Engines
The gear selector must be in the “N” (Neutral) or “P”
(Park) position before you can start the engine. Apply the
brakes before shifting into any driving gear.
NOTE: Normal starting of either a cold or a warm
engine is obtained without pumping or depressing the
accelerator pedal.
Do not press the accelerator. Use the Fob with Integrated
Key to briefly turn the ignition switch to the START
position and release it as soon as the starter engages. The
starter motor will continue to run, and it will disengage
automatically when the engine is running. If the engine
fails to start, the starter will disengage automatically in 10
seconds. If this occurs, turn the ignition switch to the
LOCK position, wait 10 to 15 seconds, then repeat the
normal starting procedure.
Extremely Cold Weather (below 220°F or 229°C)
To insure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your dealer) is recommended.
276 STARTING AND OPERATING

Jeep 2008 Grand Cherokee Specifications

General

Brand	Jeep
Model	2008 Grand Cherokee
Category	Automobile
Language	English

Summary

INTRODUCTION

Rollover Warning

Warns about the higher rollover risk of utility vehicles and safe driving practices.

Warnings And Cautions

Details warnings against operating procedures that could cause accidents or injury.

A Word About Your Keys

Explains the keyless ignition system and its components.

Occupant Restraints

Covers the importance and proper use of seat belts and airbags for passenger safety.

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Sentry Key

Describes the Sentry Key Immobilizer System for preventing unauthorized vehicle operation.

Remote Keyless Entry

UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Hands–Free Communication (UConnect™) — If Equipped

Electronic Brake Control System

Describes ABS, TCS, BAS, ERM, and ESP for enhanced vehicle stability and control.

UNDERSTANDING YOUR INSTRUMENT PANEL

Instrument Cluster

INSTRUMENT CLUSTER DESCRIPTION

STARTING AND OPERATING

Starting Procedure

Outlines essential steps for safely starting the vehicle before driving.

Automatic Transmission

FOUR-WHEEL DRIVE OPERATION

Details operation and precautions for Quadra-Trac I and II systems in various modes.

OFF-ROAD DRIVING TIPS

Tires — General Information

Fuel Requirements

TRAILER TOWING

Provides essential safety tips and information for towing a trailer with the vehicle.

WHAT TO DO IN EMERGENCIES

HAZARD WARNING FLASHERS

IF YOUR ENGINE OVERHEATS

Provides steps to take when the engine overheats to prevent damage.

JACKING AND TIRE CHANGING

Details safety warnings and instructions for using the jack and changing a tire.

JUMP STARTING

Offers crucial safety warnings and step-by-step instructions for jump starting a vehicle.

TOWING A DISABLED VEHICLE

MAINTAINING YOUR VEHICLE

Onboard Diagnostic System — OBD II

Explains the function of the OBD II system and the Malfunction Indicator Light.

Maintenance Procedures

Cooling System

Brake System

Stresses the importance of inspecting brake components and warns against riding the brakes.

MAINTENANCE SCHEDULES

MAINTENANCE SCHEDULE — GASOLINE ENGINES

Required Maintenance Intervals

MAINTENANCE SCHEDULES — DIESEL ENGINE

Schedule "B" — Diesel Engine

Details the maintenance schedule for diesel engines used under severe operating conditions.