2003 Jeep Grand Cherokee Service and Repair Manual
The 2003 Jeep Grand Cherokee was offered with two engines — the 4.0L I6 and the 4.7L V8 — across all three trims. It is matched to this exact year, so the specs and sequences are correct for your engine and trim.
Engines
- 4.0L I6 (242 cu in), OHV
- 4.7L V8 (287 cu in), SOHC
Trims
- Laredo
- Limited
- Overland
Known issues on the 2003 Grand Cherokee. Six recalls are on federal record for this model year: a hydraulic service-brake fault where a loss of brake fluid can lower brake line pressure and increase stopping distance, a headlight defect where missing amber reflectors leave the vehicle poorly illuminated and can lead to a crash, a second headlight problem where decreased lighting visibility may result in a crash, a front-seat heater that can overheat and cause a fire or injury, an exterior-lighting fault where decreased lighting visibility may result in a crash, and a fuel-pump leak that could cause a fire in the presence of an ignition source. Owners have filed 889 complaints and Jeep has issued 70 technical service bulletins for the year. This manual carries the factory diagnostic and repair procedures behind each of those systems.
From a routine service interval to a control-module reflash or a hard-to-trace wiring fault, it keeps you on the OEM procedure and the correct specification for your specific 2003 Grand Cherokee.
CERTAIN AFTERMARKET BRAKE HYDRAULIC MASTER CYLINDERS SOLD AS REPLACEMENT BRAKE CYLINDERS FOR CERTAIN FORD, DAIMLERCHRYSLER, AND JEEP PASSENGER VEHICLES. THESE BRAKE CYLINDERS WERE SOLD UNDER THE BRAN
LOSS OF BRAKE FLUID CAN LEAD TO A DECREASE IN BRAKE LINE PRESSURE AND AN INCREASE IN STOPPING DISTAN
AFFINIA (BRAKE PARTS, INC.) WILL REPLACE THE SUBJECT BRAKE HYDRAULIC MASTER CYLINDERS FREE OF CHARGE
CERTAIN ANZO COMBINATION HEADLAMP ASSEMBLIES SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES. SOME COMBINATION LAMPS ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS WHICH FAIL TO CONFORM
WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICL
ANZO WILL NOTIFY OWNERS AND REPLACE THE HEADLAMPS FREE OF CHARGE. THE RECALL BEGAN MAY 9, 2006. OW
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S
CHRYSLER IS RECALLING 103,409 MY 2001-2004 JEEP GRAND CHEROKEE VEHICLES WITH HEATED SEATS AND WITH CHRYSLER RECALL NO. 06V-197 COMPLETED (03-04 MY) OR SEAT HEATER ELEMENTS SERVICE REPLACEMENT (01-02 M
OVERHEATING COULD POTENTIALLY CAUSE A FIRE OR INJURY.
DEALERS WILL REPLACE THE FRONT SEAT HEATER ELEMENTS FREE OF CHARGE. THE RECALL BEGAN ON NOVEMBER 23
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S
CERTAIN AFTERMARKET AIRTEX ELECTRIC FUEL PUMPS INSTALLED FOR USE AS REPLACEMENT EQUIPMENT FOR CERTAIN 1997-2004 JEEP WRANGLER; 1997-2001 JEEP CHEROKEE; 1997-2004 JEEP GRAND CHEROKEE; AND 2000-2003 DOD
IN THE PRESENCE OF AN IGNITION SOURCE, A FUEL LEAK COULD RESULT IN A FIRE.
AIRTEX WILL NOTIFY ITS CUSTOMERS AND WILL REPLACE THE AFFECTED FUEL PUMPS FREE OF CHARGE. THE RECAL
Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only.
Plate - Planetary
KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicl
KEY, Master If replacing the key/FOBIK on a WJ, KJ, TJ, or PT Cruiser, use the "AC" NIC level part number. The "AB" NIC level will not program to these platforms. For all other platforms, if the "AB" NIC level will not program to the vehicl
Mechanical rocker arm, intake, 1.7 ratio.
Mechanical rocker arm, intake, 1.7 ratio.
Valve Body. These may cause over drive cycling.
Charging System, Battery Diagnostic Tools and Warranty This information only bulletin discusses using the correct test equipment for testing batteries and charging systems, and also warranty reimbursement when battery replacements are neces
Showing the 8 most recent of 70 technical service bulletins on file with NHTSA.
BLOWER ONLY COLD AIR ALL THE TIME, MECHANIC SAID VERY POPULAR ISSUE WITH THESE VEHICLES - SAFETY ISSUE
TL*THE CONTACT OWNS A 2003 JEEP GRAND CHEROKEE. WHILE SHIFTING OUT OF NEUTRAL, THE VEHICLE SURGED FORWARD. THE CONTACT DEPRESSED THE BRAKE PEDAL WITH BOTH FEET, BUT THE VEHICLE FAILED TO STOP. THE
TL* THE CONTACT OWNED A 2003 JEEP GRAND CHEROKEE. WHILE AT A STOP LIGHT, THE CONTACT'S VEHICLE WAS REAR ENDED. AS A RESULT, THE CONTACT CRASHED INTO THE PRECEDING VEHICLE. THE DRIVER'S SIDE AIR BAG FA
TL* THE CONTACT OWNED A 2003 JEEP GRAND CHEROKEE. WHILE AT A STOP LIGHT, THE CONTACT'S VEHICLE WAS REAR ENDED. AS A RESULT, THE CONTACT CRASHED INTO THE PRECEDING VEHICLE. THE DRIVER'S SIDE AIR BAG FA
TL* THE CONTACT OWNED A 2003 JEEP GRAND CHEROKEE. WHILE DRIVING 25 MPH, THE VEHICLE SUDDENLY VEERED TO THE LEFT. THE VEHICLE DROVE INTO A DITCH AND LANDED IN A BUNCH OF TREES. THE AIR BAGS FAILED TO D
Showing the 5 most serious of 889 complaints filed with NHTSA.
