Everything in this service and repair manual is keyed to the 2003 Lexus RX 300 as it left the assembly line — the 3.0L V6 (1MZ-FE), in either AWD or FWD form — so the clearances, torque values and procedures you work to are the ones Lexus published for this model year, not figures carried over from an adjacent one.
Engines
- 3.0L V6 GAS Naturally Aspirated
Trims
- AWD
- FWD
Known issues on the 2003 RX 300. Three recalls are on federal record for this model year, and all three cover replacement parts sold for the vehicle. The first covers back glass sold as replacement equipment, which fails to conform to the automotive glazing material requirements of Federal Motor Vehicle Safety Standard No. 205 — a standard whose purpose is to reduce injuries resulting from impact to glazing surfaces. The other two cover exterior lighting: one for certain CK Motorsports combination headlights, clear corner, bumper and side marker lights, the other for certain Pro-A Motors corner lamps, turn signals and headlights. In both cases, some combination lamps not equipped with amber side reflectors fail to conform to Federal Motor Vehicle Safety Standard No. 108, and without the amber reflectors the vehicle will be poorly illuminated, possibly resulting in a vehicle crash without warning. Owners have filed 30 complaints for the year, and no technical service bulletins are on record. The removal, installation and diagnostic procedures behind the glass and exterior lighting systems are here.
From a rear glass replacement to a lighting fault or a scheduled service interval, it keeps you on the manufacturer procedure and the correct specification for this 2003 RX 300.
POLYMER PROCESS DEVELOPMENT IS RECALLING 931 UNITS OF BACK GLASS, P/NO. FB20415ZPY, SOLD AS REPLACEMENT EQUIPMENT FOR USE ON 1999-2004 LEXUS RX300 VEHICLES. THE GLASS FAILS TO CONFORM TO THE AUTOMOTIVE GLAZING MATERIAL REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 205, GLAZING MATERIALS.
THE PURPOSE OF THIS STANDARD IS TO REDUCE INJURIES RESULTING FROM IMPACT TO GLAZING SURFACES.
POLYMER WILL NOTIFY OWNERS AND REPLACE THE AFFECTED GLASS FREE OF CHARGE. THE RECALL BEGAN ON APRIL 18, 2008. OWNERS MAY CONTACT POLYMER TOLL-FREE AT 800-510-9879.
CERTAIN CK MOTORSPORTS COMBINATION HEADLIGHTS, CLEAR CORNER, BUMPER, AND SIDE MARKER LIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON THE PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
CK MOTORSPORT WILL NOTIFY OWNERS AND REPLACE THE NONCOMPLIANT LAMPS FREE OF CHARGE. THE RECALL BEGAN ON JULY 1, 2006. OWNERS MAY CONTACT CK MOTORSPORT AT 1-909-610-7211.
CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
PRO-A MOTORS WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN ON APRIL 3, 2006. OWNERS MAY CONTACT PRO-A MOTORS AT 323-838-2988.
Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Lexus. This information must be kept near the point of vehicle sale and be available to any custome
Brake Pedal Force Gauge SST for Parking Brake Inspection.
Techstream ECU Flash Reprogramming Procedure.
Immobilizer and Smart Key Reset.
Immobilizer and Smart Key Reset
Immobilizer and Smart Key Reset
Auto matic Transmission Replacement kPrecautions
Showing the 8 most recent of 54 technical service bulletins on file with NHTSA.
MY SON WAS INVOLVED IN A HEAD-ON CRASH RESULTING IN BOTH VEHICLES BEING TOTALED. THE DRIVER OF THE OTHER VEHICLE RECEIVED MINOR INJURIES FROM HIS AIR BAG. MY SON HOWEVER PUNCHED HIS HEAD THROUGH THE WINDSHIELD RESULTING IN SIGNIFICANT INJURY TO HIS HEAD AND FACE. BOTH AIRBAGS DEPLOYED, AND HE WAS WEARING HIS SEAT BELT. IT IS MY BELIEF THAT THE SEAT BELT DID NOT LOCK CORRECTLY UPON IMPACT
TL*THE CONTACT OWNS A 2003 LEXUS RX300. WHILE DRIVING 10 MPH OUT OF THE PARKING LOT THE VEHICLE ACCELERATED AND HE LOST CONTROL. AS HE SWERVED THE VEHICLE HE HIT THREE SMALL TREES, A WOODEN FENCE, AND A BRICK WALL BEFORE THE VEHICLE STOPPED. THE AMBULANCE AND POLICE DEPARTMENT CAME BECAUSE HE WAS TRAPPED IN THE VEHICLE. HE WAS TAKEN TO THE HOSPITAL FOR INJURES TO HIS LOWER BACK. THE VEHICLE WAS DESTROYED. THERE IS A POLICE REPORT IF NEEDED. THE INSURANCE COMPANY WAS NOTIFIED. THE DEALER NOR MAN
MY WIFE DROVE THE VEHICLE TO WORK. SHE PARKED, TURNED THE ENGINE OFF, AND REMOVED THE KEY WHILE THE SHIFTER WAS IN THE NEUTRAL POSITION. THINKING THAT IT WAS IN "PARK", SHE EXITED THE VEHICLE AND BEGAN TO WALK AWAY. THE VEHICLE ROLLED BACKWARD AND PINNED HER RIGHT LET IN BETWEEN ITS REAR BUMPER AND THE BUMPER OF ANOTHER VEHICLE. *TR
CONSUMER WAS ABLE TO REMOVE KEY FROM THE IGNITION WITH VEHICLE NOT BEING IN THE PARK GEAR. AS A RESULT VEHICLE ROLLED AND CRASHED INTO A TREE.*AK
TL*THE CONTACT OWNS A 2003 LEXUS RX300. WHILE DRIVING INTO A DRIVEWAY AT SPEEDS OF FEWER THAN 8 MPH, SHE HEARD A LOUD REVVING NOISE AND THE VEHICLE ACCELERATED WITHOUT INTENT. THE VEHICLE CRASHED INTO THE GARAGE DOOR AND PUSHED THE TWO VEHICLES INTO THE DRIVEWAY THROUGH A CEMENT WALL AND INTO HER HOME. THERE WERE NO INJURIES. NEITHER THE MANUFACTURER NOR DEALER WAS CONTACTED. THE REPAIRS WERE COVERED THROUGH HER INSURANCE COMPANY. THE FAILURE MILEAGE WAS 38,000 AND THE CURRENT MILEAGE WAS 70,000
TL*THE CONTACT OWNS A 2003 LEXUS RX300. WHILE DRIVING INTO A DRIVEWAY AT SPEEDS OF UNDER 8 MPH, SHE HEARD A LOUD REVVING NOISE AND THE VEHICLE ACCELERATED. THE VEHICLE CRASHED INTO THE GARAGE DOOR AND PUSHED TWO OTHER VEHICLES IN THE DRIVEWAY THROUGH A CEMENT WALL AND THROUGH HER HOME. NEITHER THE MANUFACTURER NOR DEALER WERE CONTACTED. THE REPAIRS WERE COVERED THROUGH HER INSURANCE COMPANY. THE FAILURE MILEAGE WAS 38,000 AND THE CURRENT MILEAGE WAS 70,000.
THE CAR WAS HIT ON THE REAR PASSANGER SIDE; THE WHOLE REAR AXLE CAME OFF DUE TO SUCH ACCIDENT AND THE AIR BAGS DID NOT DEPLOY. THIS IS A BIG SAFETY ISSUE DUE TO THE FACT THAT I HAVE A 5 YEAR OLD SON. DT
THIS COMPLAINT IS ALMOST IDENTICAL TO OTHERS I HAVE FOUND AND IS VERY SERIOUS. PURCHASED 2003 LEXUS RX300 FROM A TOYOTA DEALERSHIP; APPROXIMATELY 57000 MILES NOW, ABOUT 56000 AT PURCHASE. CAR CHECKED BY DEALERSHIP, OK. NO HARD DRIVING. AFTER FIRST DISTANCE TRIP (ST. LOUIS TO KC) CHECK OIL LIGHT AND CHECK ENGINE LIGHT CAME ON. TOWED TO LEXUS DEALER WHO KNEW RIGHT WHERE TO LOOK. FOUND GELLED SLUDGE ALL THROUGH AND SAID IT WAS MISUSE. COMPLETE LIE. SAID ENGINE MUST BE REPLACED. NO HELP SO FAR F
I OWN A 2003 LEXUS RX300. AFTER I HAD CAME FROM A COMPLETED STOP WHILE DEPRESSED ON THE ACCELERATOR PEDAL, THE BRAKES BEGAN TO LOCK WITH THE ABS BRAKE LIGHT ILLUMINATED. THE VEHICLE WAS DIAGNOSED BY AN INDEPENDENT MECHANIC WHO STATED THE AV PUMP FAILED OR THAT IT MAYBE SOMETHING WITH THE ELECTRONIC CONTROL MODULE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURERS WERE NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 320,000.
AIRBAG LIGHT STAYS ON WHEN CAR IS RUNNING AND WHEN I HAD IT CHECKED OUT THE MECHANIC SAID IT COULD INFLATE AT ANY TIME. DON'T HAVE THE MONEY IN BUDGET TO HAVE DONE RIGHT NOW.
HAD CAR IN DRIVEWAY UNUSED FOR MONTH OR TWO. CAR SEEMED TO BE IDLING AT HIGHER THAN USUAL SPEED AFTER STARTING (@2300 RPM). VEHICLE JERKED A BIT AT EACH STOP SIGN AS IF PROBLEM WITH TRANSMISSION. TOOK VEHICLE ON ROAD AT 35 TO 40 MPH, TOOK FOOT OFF GAS AND VEHICLE KEPT ACCELERATING AT A MODEST PACE TO ABOVE 50. GLANCED AT FLOORMAT (NOT TOUCHING ACCELERATOR), PUT CAR IN NEUTRAL. ENGINE REVVED TO HIGH RPM THAN CAME BACK TO NORMAL. PUT BACK IN GEAR AND DROVE SHORT DISTANCE HOME. *TR
SIX MONTHS AGO, THE DRIVERS SIDE SEAT BELT WARNING LIGHT CAME ON. TWO WEEKS AGO, THE DRIVERS SIDE AIR BAG WARNING LIGHT CAME ON. THIS APPEARS TO BE A WIDE SPREAD ISSUE WITH THESE LEXUS RX 300'S EVIDENCED BY THE NUMEROUS COMPLAINTS LOGGED ON THE WEB. MY CAR WAS GARAGE KEPT FOR THE MAJORITY OF IT'S LIFE. THIS ISSUE SHOULD NOT BE HAPPENING AND SHOULD BE REPAIRED BY LEXUS AT NO COST TO THE CONSUMER. *TR
AS I WAS DRIVING THE CAR STARTED TO SPEED UP UNCONTROLLABLY AND WOULD NOT SLOW DOWN EVEN WITH THE BRAKES APPLIED. I HAD TO PUT IT INTO NEUTRAL TO APPLY THE BRAKES BUT WE WENT FROM 45 - 85MPH IN A MATTER OF SECONDS WHILE DRIVING IN 45MPH ZONE IN THE INNER CITY. WHEN I TURNED THE CAR BACK ON WHILE IN PARK THE ACCELERATOR WAS STILL STUCK UP TO 100MPH + SO IT WAS NOT DRIVABLE. WE FOUND OUT LATER FROM THE MECHANIC THAT THE THROTTLE WAS STICKY AND STUCK IN THE OPEN POSITION.
I CALLED MY LOCAL LEXUS THREE TIMES PRIOR TO JUNE, 2012 REGARDING LIGHTS SUDDENLY ILLUMINATING ON THE DASHBOARD. I HAD A RECURRING ISSUE WHERE THE CHECK ENGINE AND VSC WARNING LIGHTS WOULD ILLUMINATE. EACH TIME THE CUSTOMER SERVICE AGENT TOLD ME THAT THE LIGHTS WOULD GO OFF WHEN I REFUELED. THREE TIMES THE LIGHTS DID GO OFF (AFTER SEVERAL DAYS), BUT ONCE I HAD TO HAVE THE DEALER RESET THEM. THE MOST RECENT OCCURRENCE RESULTED IN THE DEALER TELLING ME I NEEDED THE AIR FUEL AND AIR FLOW SENSORS RE
THE TRANSMISSIONS IN LEXUS RX300 MODELS ARE UNSAFE. THE TRANSMISSION IN MY RX300 HAD TO BE REPLACED AT 70,000 MILES AND AGAIN AT 120,000 MILES. LEXUS IS NOT STANDING BEHIND THEIR PRODUCT. THERE HAVE BEEN NUMEROUS COMPLAINTS ABOUT THE TRANSMISSION IN THE RX300 MODEL. LEXUS WILL NOT ACKNOWLEDGE THIS DEFECT. ALSO, I WAS MISLED AT THE DEALERSHIP THE FIRST TIME THEY REPLACED THE TRANSMISSION. I WAS ASSURED THAT THE TRANSMISSION WAS NOT "REFURBISHED", WHEN, INDEED, IT IS NOT A NEW TRANSMISSION.
Showing the 15 most serious of 30 complaints filed with NHTSA.
