2004 Saturn Ion service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- 1 Sedan 4-Door
- 2 Sedan 4-Door
- 3 Sedan 4-Door
- 2 Coupe 4-Door
- 3 Coupe 4-Door
- Red Line Coupe 4-Door
Engines covered
- 2.2L 2198CC 134Cu. In. l4 GAS DOHC Naturally Aspirated
- 2.0L 122Cu. In. l4 GAS DOHC Supercharged
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
CERTAIN PASSENGER VEHICLES HAVE A CONDITION IN WHICH THE TURN SIGNAL LAMP AND DAYTIME RUNNING LAMP (DRL) ON EITHER FRONT SIDE CAN STOP WORKING BECAUSE OF LOSS OF CONTACT BETWEEN THE BULB AND SOCKET.
IF A FRONT TURN SIGNAL LAMP IS INOPERATIVE, OTHERS MAY REACT MORE SLOWLY TO A TURNING VEHICLE AND A
DEALERS WILL REPLACE THE DRL/TURN SIGNAL BULB ON BOTH THE LEFT AND RIGHT FRONT SIDE AND INSPECT FOR
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if
If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a c
GM will notify owners, and dealers will replace the ignition switch, free of charge. An interim not
CERTAIN VEHICLES EQUIPPED WITH SUPERCHARGED 2.0L 4-CYLINDER (LSJ) ENGINE WERE BUILT WITH A FUEL FEED PIPE THAT COULD CRACK AND LEAK FUEL NEAR THE FUEL RAIL. IF FUEL LEAKS FROM THE FUEL FEED PIPE, THER
FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
DEALERS WILL REPLACE THE FUEL FEED PIPE ASSEMBLY. OWNER NOTIFICATION BEGAN ON JUNE 9, 2004. OWNER
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
ON CERTAIN PASSENGER VEHICLES, SOME WELDS BETWEEN THE PASSENGER'S SIDE MOTOR RAIL AND THE FRONT BUMPER BRACKET DO NOT MEET ENGINEERING SPECIFICATIONS.
LONG TERM DURABILITY OF THE JOINT MAY BE REDUCED AND SEPARATION OF THE BUMPER FROM THE FRAME ON THE
ALL VEHICLES ARE STILL IN DEALER'S POSSESSIONS.
CERTAIN PASSENGER VEHICLES EQUIPPED WITH 2.2L 4-CYLINDER (L61) ENGINES WERE BUILT WITH A FUEL FILTER THAT COULD CORRODE PREMATURELY ON THE EXTERIOR SURFACE.
IF CORROSION ON THE EXTERIOR SURFACE OF THE FUEL FILTER PROGRESSES TO THE POINT OF CREATING A HOLE I
DEALERS WILL REPLACE THE FUEL FILTER ASSEMBLY. OWNER NOTIFICATION BEGAN ON DECEMBER 30, 2003. OW
CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 118, "POWER-OPERATED WINDOW, PARTITION, AND ROOF PANEL SYSTEMS." THE POWER WINDOWS AND/OR
IF UNSUPERVISED CHILDREN ARE LEFT UNATTENDED IN THE VEHICLE AND OPERATE THE POWER WINDOWS OR SUNROOF
DEALERS WILL UPGRADE THE BODY CONTROL MODULE (BCM) CALIBRATION. OWNER NOTIFICATION BEGAN ON DECEMBE
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed fo
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
Showing the 8 most recent of 288 technical service bulletins on file with NHTSA.
3 VEHICLE ACCIDENT. I COLLIDED WITH ANOTHER VEHICLE AND MY AIR BAGS DEPLOYED. HOWEVER, MY DRIVER'S SIDE AIR BAG DEPLOYED INCORRECTLY. RATHER THEN ONE LARGE AIR BAG, IT CAME OUT IN TWO PIECES DUE TO
PROBLEMS: A. AIR BAGS DIDN'T DEPLOY . B. DRIVER'S SEAT COLLAPSE AND DENT REAR-ENDED WHILE STOPPED AT A RAILROAD CROSSING. UPON IMPACT SEAT FLEW BACK, HIT BACK SEAT AND DENTED. OUR STOPPED CAR WAS
PROBLEMS: A. AIR BAGS DIDN'T DEPLOY . B. DRIVER'S SEAT COLLAPSE AND DENT REAR-ENDED WHILE STOPPED AT A RAILROAD CROSSING. UPON IMPACT SEAT FLEW BACK, HIT BACK SEAT AND DENTED. OUR STOPPED CAR WAS
2004 SATURN ION RIGHT FRONT TIRE WORN DOWN TO METAL. THEN RIGHT FRONT LOWER ARM BROKE INTO CAUSING A CRASH. NO CORRECTIONS WERE DONE. SATURN CO. SAID IT WASN'T A FAULTY PART. SAID PART BROKE WHEN HIT
DEAR NHTSA ASSOCIATE, I HAD A 100% PARALLEL, FULL FRONTAL IMPACT, NO ANGLE, AS MY NEW CAR TRAVELING 35 MPH HIT A LARGE DELIVERY VAN TWICE THE WEIGHT OF MY VEHICLE WITH A SQUARE AND STEEL BUMPER THAT
Showing the 5 most serious of 1124 complaints filed with NHTSA.
