2003 Lexus RX300 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2003 Lexus RX300, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Driver assistance721.9%
- Transmission515.6%
- Engine412.5%
- Airbags39.4%
- Electrical39.4%
- Visibility39.4%
- Other / unspecified26.3%
- Powertrain (other)26.3%
- Suspension13.1%
- Brakes13.1%
- Fuel system13.1%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
The contact owns a 2003 Lexus RX300. The contact stated that the HVAC system was inoperable. Additionally, the VSC and check engine warning lights were illuminated while starting the vehicle. The vehicle was diagnosed at an AutoZone with a catalytic converter failure. The vehicle was not repaired. The manufacturer was informed of the failure. The approximate failure mileage was 106,000.
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
DURING NORMAL DRIVING, WITH NO SIGNS OF FAILURE, THE VEHICLE SUDDENLY WOULD LOSE POWER WHEN PRESSED ON GAS, IT ACTED AS IF IT WERE IN NEUTRAL---ENGINE REVS UP, BUT CAR DOES NOT MOVE. THEN WHEN SWITCHED TO SECOND GEAR OR L, TRANSMISSION STILL WOULD NOT ENGAGE. HAD IT TOWED TO A LOCAL TRANSMISSION SHOP, IT TURNED OUT TO BE THE PLANETARY GEAR BROKE. SEARCHED ONLINE LEXUS FORUM, FOUND OUT VERY MANY PEOPLE REPORTED THE SAME FAILURE IN TRANSMISSION. *TR
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. THE DEFINITION OF THE WORD "REFURBISHED" WAS IN QUESTION. THE TRANSMISSION GOING OUT REPEATEDLY AND SO EARLY IN THE RX300 MODEL IS A SAFETY HAZARD. LEXUS' FAILURE TO ACKNOWLEDGE THE PROBLEM AND THEIR DECISION TO WAIT UNTIL SOMEONE HAS A PROBLEM WITH THE TRANSMISSION IS A SAFETY ISSUE IN ITSELF. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
The contact owns a 2003 Lexus RX300. The contact stated that the HVAC system was inoperable. Additionally, the VSC and check engine warning lights were illuminated while starting the vehicle. The vehicle was diagnosed at an AutoZone with a catalytic converter failure. The vehicle was not repaired. The manufacturer was informed of the failure. The approximate failure mileage was 106,000.
2003 LEXUS RX300 VEHICLE STALLED. REPLACE IDLE AIR CONTROL VALVE TWICE**CW** THE CONSUMER ALSO REFERENCED A TOYOTA HIGHLANDER THAT HAD THE SAME STALLING ISSUE. *JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
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.
AIR BAG "PROBLEM" WARNING LIGHT CAME ON INTERMITTENTLY. DEALER STATED THAT IF THE LIGHT WAS ON, THE AIR BAGS WOULD NOT DEPLOY IN A CRASH. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
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.
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 REPLACED, A REPAIR WHICH COST OVER $750.00. AS AN ASIDE, EVERY TIME I CALLED TO INQUIRE ABOUT THE LIGHTS BEING ILLUMINATED MY CAR WAS UNDER WARRANTY AND NO REPAIRS WERE SUGGESTED. AFTER THE WARRANTY EXPIRED I WAS THEN ADVISED THAT THE SENSORS NEEDED TO BE REPLACED. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
The contact owns a 2003 Lexus RX300. The contact stated that the HVAC system was inoperable. Additionally, the VSC and check engine warning lights were illuminated while starting the vehicle. The vehicle was diagnosed at an AutoZone with a catalytic converter failure. The vehicle was not repaired. The manufacturer was informed of the failure. The approximate failure mileage was 106,000.
CONSUMER EXPERIENCED A PROBLEM WITH THE FRONT WINDSHIELD CRACKING FOR NO KNOWN REASON WHILE PARKED IN THE GARAGE OVERNIGHT. CONSUMER REPLACED THE FRONT WINDSHIELD, WITHIN ONE WEEK. THE FRONT WINDSHIELD DEVELOPED ANOTHER CRACK WHILE PARKED IN THE GARAGE OVERNIGHT.*AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
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. THE DEFINITION OF THE WORD "REFURBISHED" WAS IN QUESTION. THE TRANSMISSION GOING OUT REPEATEDLY AND SO EARLY IN THE RX300 MODEL IS A SAFETY HAZARD. LEXUS' FAILURE TO ACKNOWLEDGE THE PROBLEM AND THEIR DECISION TO WAIT UNTIL SOMEONE HAS A PROBLEM WITH THE TRANSMISSION IS A SAFETY ISSUE IN ITSELF. *TR
NOT MY VEHICLE, BUT ON OTHER VEHICLE ON THE ROAD. NUMEROUS TIME I HAVE HAPPENED UPON A NEWER LEXUS RX 300 (2002 OR 2003 MODEL??) WITH NO TAIL LIGHTS, TRAVELING ALONG PUBLIC ROADWAYS WELL AFTER DARK. IN A RECENT INCIDENT, I WAS ON A MULTI-LANE FREEWAY AND HAD A CHANCE TO PULL ALONG SIDE A LEXUS RX 300 WITH NO TAIL LIGHTS, GLANCING OVER AT THE DRIVER COMPARTMENT OF THE RX 300, I NOTED THAT THE DASH/INSTRUMENT LIGHTS WERE ON! AND, THE DAYTIME RUNNING LIGHTS (DLRS) WERE PROVIDING SOME FORWARD ILLUMINATION FOR THE VEHICLE. I LATER DISCOVERED THAT THE RX 300 VEHICLES ALWAYS HAVE THEIR INSTRUMENT PANEL ILLUMINATED, THUS WITH THE COMBINATION OF THE DLRS, IT SEEMS THAT THE DRIVERS OF LEXUS RX300 SUV'S FREQUENTLY FORGET TO TURN THEIR HEADLIGHTS ON. THERE IS AN "AUTO" FEATURE, BUT IF NOT USED, THE VEHICLE IS VERY PRONE LEAVING THE DRIVER WITH A FALSE SENSE THAT THE LIGHTS ARE TURNED ON- WHICH IS VERY DANGEROUS. I CAN NOT THINK OF ANY OTHER VEHICLE THAT ILLUMINATES THE DASH WITHOUT AT LEAST TURNING ON THE TAIL/PARKING LAMPS. I FEEL THIS IS A DEFECT IN THIS VEHICLE DESIGN THAT COULD NEEDLESSLY LEAD TO ACCIDENTS. *NLM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
THE VEHICLE SUDDENLY LOST TRANSMISSION ON THE ROAD AND WAS ROLLING FREELY. THE GEARS DOES NOT WORK ANYMORE AND THE VEHICLE ROLLS AS IF ITS IN NEUTRAL. WHEN SEARCH THE INTERNET I LOOKED AT LOT OF THE CUSTOMERS COMPLAINING ABOUT EXACT SAME THING, ABOUT THIS VEHICLE HAVING TRANSMISSION ISSUES ESPECIALLY FOR RX300. NO WONDER TOYOTA HAS THIS MANY RECALLS AND SURPRISED THAT THEIR PREMIUM BRAND HAS THE SAME ISSUES WITH SAFETY. I AM GLAD THAT THIS DID NOT HAPPEN ON A HIGHWAY
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
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.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
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 REPLACED, A REPAIR WHICH COST OVER $750.00. AS AN ASIDE, EVERY TIME I CALLED TO INQUIRE ABOUT THE LIGHTS BEING ILLUMINATED MY CAR WAS UNDER WARRANTY AND NO REPAIRS WERE SUGGESTED. AFTER THE WARRANTY EXPIRED I WAS THEN ADVISED THAT THE SENSORS NEEDED TO BE REPLACED. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .