NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
8 reportsClear category filter143,500 miles · Apr 27, 2026
Power TrainVehicle Speed Control
The contact owns a 2017 Acura RDX. While the contact's wife was driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact's wife enabled the parking brake. The contact stated that at a later while, the vehicle independently accelerated. No warning lights were ill…
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The contact owns a 2017 Acura RDX. While the contact's wife was driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact's wife enabled the parking brake. The contact stated that at a later while, the vehicle independently accelerated. No warning lights were illuminated. The vehicle was taken to the dealer; however, the failure was not duplicated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that prior to the failure, the vehicle was repaired an unknown recall was associated with the turbocharger repair. The contact researched and discovered that the failure was a known failure with similar vehicles. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 143,500.
NHTSA ODI #11734021
Mileage unknown · Mar 27, 2024
EnginePower TrainVehicle Speed Control
I am writing to report a concerning issue with my Acura RDX 2017, which I believe poses a significant safety risk and requires immediate attention from your organization. The problem I encountered while driving jeopardizes the safety of both myself and others on the road. About five days ago, while driving at approximately 20 m…
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I am writing to report a concerning issue with my Acura RDX 2017, which I believe poses a significant safety risk and requires immediate attention from your organization. The problem I encountered while driving jeopardizes the safety of both myself and others on the road. About five days ago, while driving at approximately 20 mph, my vehicle began emitting loud, thunderous sounds, accompanied by intense vibrations that shook the entire car. Additionally, it seemed to struggle when shifting gears, particularly into second or third gear. Despite my careful and gradual acceleration, the car exhibited signs of a malfunction within its transmission system. Furthermore, at around 35 mph, the engine suddenly revved to over 3000 rpm, causing the vehicle to accelerate without any input from me. This acceleration occurred even though my foot was not on the gas pedal, making the car difficult to control and putting me at risk of colliding with other vehicles or objects. The unpredictability of these incidents is deeply alarming and could lead to serious accidents if not addressed promptly. I purchased this vehicle in December 2023 and have maintained it according to the manufacturer's recommendations. However, when I inquired about the timing belt at the dealership, I was assured that it had passed inspection. Despite this, the recent malfunctions suggest a more serious underlying issue that needs immediate attention. Crucially, there were no warning lights, messages, or other indications of a problem prior to these incidents, underscoring the sudden and unexpected nature of the issue. I urge the NHTSA to investigate this matter urgently and thoroughly. I request that you initiate a recall of affected vehicles and implement necessary repairs to address the identified defects. Swift action is essential to ensure the safety of all motorists who may be affected by this issue.
NHTSA ODI #11579723
37,800 miles · Oct 19, 2020
EngineVehicle Speed Control
TL* THE CONTACT OWNS A 2017 ACURA RDX. THE CONTACT STATED WHILE DRIVING 45 MPH, THE VEHICLE FAILED TO ACCELERATE AND LOSS MOTIVE POWER. THE VEHICLE COASTED TO A STOP. THE VEHICLE WAS RESTARTED AND OPERATED AS DESIGNED FOR LESS THAN ONE MINUTE BEFORE THE FAILURE RECURRED. THE CONTACT TOOK THE VEHICLE TO SCHALLER ACURA (345 CENTER…
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TL* THE CONTACT OWNS A 2017 ACURA RDX. THE CONTACT STATED WHILE DRIVING 45 MPH, THE VEHICLE FAILED TO ACCELERATE AND LOSS MOTIVE POWER. THE VEHICLE COASTED TO A STOP. THE VEHICLE WAS RESTARTED AND OPERATED AS DESIGNED FOR LESS THAN ONE MINUTE BEFORE THE FAILURE RECURRED. THE CONTACT TOOK THE VEHICLE TO SCHALLER ACURA (345 CENTER ST, MANCHESTER, CT 06040, (860) 647-7077) WHO WERE UNABLE TO IDENTIFY THE CAUSE OF THE FAILURE. THE CONTACT STATED THE FAILURE REOCCURRED AT 35-40 MPH. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND A CASE WAS OPENED. THE APPROXIMATE FAILURE MILEAGE WAS 37,800.
NHTSA ODI #11365183
22,000 miles · Jun 18, 2020
EngineVehicle Speed Control
TL* THE CONTACT OWNS A 2017 ACURA RDX. THE CONTACT STATED THAT WHILE DEPRESSING THE ACCELERATOR PEDAL, THE VEHICLE HESITATED TO ACCELERATE. IN ADDITION, THE VEHICLE ACCELERATED ABRUPTLY ON SEVERAL OCCASIONS. THE CONTACT THAT ON SEVERAL OCCASIONS WHILE DRIVING, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT THE VEHI…
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TL* THE CONTACT OWNS A 2017 ACURA RDX. THE CONTACT STATED THAT WHILE DEPRESSING THE ACCELERATOR PEDAL, THE VEHICLE HESITATED TO ACCELERATE. IN ADDITION, THE VEHICLE ACCELERATED ABRUPTLY ON SEVERAL OCCASIONS. THE CONTACT THAT ON SEVERAL OCCASIONS WHILE DRIVING, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT THE VEHICLE RESTARTED INDEPENDENTLY. THE VEHICLE WAS TAKEN TO KEY ACURA OF GAINESVILLE (3435 N MAIN ST, GAINESVILLE, FL 32609) ON THREE SEPARATE OCCASIONS HOWEVER, THE MECHANIC WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 22,000.
NHTSA ODI #11329513
Mileage unknown · Sep 24, 2019
Electronic Stability Control (esc)EngineVehicle Speed Control
DURING MORNING COMMUTE ON HIGHWAY MULTIPLE WARNING LIGHTS CAME ON, INCLUDING ELECTRONIC STABILITY CONTROL, EMISSIONS, LANE DEPARTURE, AND POWER STEERING. ON RAPID ACCELERATION VEHICLE HAD PRONOUNCED POWER LOSS, WHICH OBVIOUSLY COULD BE DANGEROUS. THIS IS THE SECOND TIME THIS VERY THING HAS HAPPENED TO THE VEHICLE. IT'S AT LEA…
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DURING MORNING COMMUTE ON HIGHWAY MULTIPLE WARNING LIGHTS CAME ON, INCLUDING ELECTRONIC STABILITY CONTROL, EMISSIONS, LANE DEPARTURE, AND POWER STEERING. ON RAPID ACCELERATION VEHICLE HAD PRONOUNCED POWER LOSS, WHICH OBVIOUSLY COULD BE DANGEROUS. THIS IS THE SECOND TIME THIS VERY THING HAS HAPPENED TO THE VEHICLE. IT'S AT LEAST THE 4TH TIME MULTIPLE WARNING LIGHTS HAVE COME ON, AND THE SECOND FOR THE LOSS OF POWER ON ACCELERATION. THE DEALERSHIP CONSULTED ACURA TECHNICAL SUPPORT THE LAST TIME AND SAID THEY HAD IDENTIFIED AND FIXED THE PROBLEM.
NHTSA ODI #11257617
31,400 miles · Jul 29, 2019
Vehicle Speed Control
I WAS DRIVING ON A HIGHWAY WITH THE AUTOMATIC CRUISE CONTROL (ACC) ENABLED AND SET AT 68 MPH. WITHOUT TOUCHING THE PEDAL OR CONTROLS, THE CRUISE SPEED SETTING SUDDENLY JUMPED TO 90 MPH AND MY CAR RAPIDLY ACCELERATED TO REACH THAT SPEED. FORTUNATELY, THERE WAS NO ONE IN FRONT OF ME AND I WAS ABLE TO TAKE CONTROL OF THE CAR AND DI…
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I WAS DRIVING ON A HIGHWAY WITH THE AUTOMATIC CRUISE CONTROL (ACC) ENABLED AND SET AT 68 MPH. WITHOUT TOUCHING THE PEDAL OR CONTROLS, THE CRUISE SPEED SETTING SUDDENLY JUMPED TO 90 MPH AND MY CAR RAPIDLY ACCELERATED TO REACH THAT SPEED. FORTUNATELY, THERE WAS NO ONE IN FRONT OF ME AND I WAS ABLE TO TAKE CONTROL OF THE CAR AND DISABLE CRUISE CONTROL.
NHTSA ODI #11240464
20,000 miles · Jun 20, 2018
EngineVehicle Speed Control
TL* THE CONTACT OWNS A 2017 ACURA RDX. WHILE REVERSING OUT OF THE DRIVEWAY, THE VEHICLE INADVERTENTLY ACCELERATED. THE CONTACT HAD TO QUICKLY SHIFT THE VEHICLE INTO PARK AND APPLY EXTREME PRESSURE TO THE BRAKE PEDAL TO STOP THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED NUMEROUS TIMES. ON ONE OCCASION, WHILE DRIVING O…
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TL* THE CONTACT OWNS A 2017 ACURA RDX. WHILE REVERSING OUT OF THE DRIVEWAY, THE VEHICLE INADVERTENTLY ACCELERATED. THE CONTACT HAD TO QUICKLY SHIFT THE VEHICLE INTO PARK AND APPLY EXTREME PRESSURE TO THE BRAKE PEDAL TO STOP THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED NUMEROUS TIMES. ON ONE OCCASION, WHILE DRIVING ON THE HIGHWAY, THE VEHICLE INADVERTENTLY ACCELERATED AND A GREEN LIGHT WITH THE WORD "MAIN" WAS DISPLAYED. THE VEHICLE WAS TOWED TO CHAPMAN ACURA (4600 E 22ND ST, TUCSON, AZ 85711, (520) 445-4061), BUT THEY WERE UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 20,000. *TT CONSUMER STATED BRAKES DID NOT WORK, CAR ONLY STOPPED WHEN CONSUMER RAN OVER CURB- UP A HILL AND HIT SOME BOULDERS 1 HAVE NEVER USED CRUISE CONTROL - CAR WOULD NOT STOP IN REVERSE OR GOING FORWARD REPAIR DAMAGES $1,105.62. HAPPENED AGAIN IN 6/17/18 UPDATED 9/26/18*JB
NHTSA ODI #11102817
9,249 miles · Jun 20, 2017
Electrical SystemElectronic Stability Control (esc)Vehicle Speed Control
9,249 MILES ON A 2017 ACURA RDX. CHECK ENGINE LIGHT CAME ON WHILE IN MOTION ON A HIGHWAY AT APPROXIMATELY 65 MPH WITH NOTABLE LOSS OF POWER (ONCE STOPPED IT TOOK A FULL 30 SECONDS TO GET TO 15 MPH). LET CAR SIT FOR 2 HOURS AS MANUAL STATED. ONCE RESTARTED AND DRIVEN FOR APPROXIMATELY 20 FEET ALL LIGHTS ON DASHBOARD WHERE FLASHIN…
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9,249 MILES ON A 2017 ACURA RDX. CHECK ENGINE LIGHT CAME ON WHILE IN MOTION ON A HIGHWAY AT APPROXIMATELY 65 MPH WITH NOTABLE LOSS OF POWER (ONCE STOPPED IT TOOK A FULL 30 SECONDS TO GET TO 15 MPH). LET CAR SIT FOR 2 HOURS AS MANUAL STATED. ONCE RESTARTED AND DRIVEN FOR APPROXIMATELY 20 FEET ALL LIGHTS ON DASHBOARD WHERE FLASHING AND AGAIN VIRTUALLY NO POWER. VEHICLE WAS TOWED TO THE DEALERSHIP. TECH PERFORMED HDS SCAN AND RETRIEVED ERROR CODES: P0304, P0 05, AND P0306...4/5/6. DEALERSHIP CLAIMS WAS ALL DUE TO NEEDING A SOFTWARE UPDATE. OF WHICH I NEVER WOULD HAVE BEEN AWARE OF UNLESS I EXPERIENCED THIS SCARY LOSS OF POWER ON THE HIGHWAY. THEY HAD NO SORT OF ALERT OUT THAT THE NEW MODELS ARE IN NEED OF A SOFTWARE UPDATE. DANGEROUS AND DO NOT FEEL SAFE DRIVING THIS CAR ANY LONGER.
NHTSA ODI #11000156
NHTSA investigations
1EA21002 · Desiccated Air Bag Inflator Rupture
Opened Sep 17, 2021 · No close date supplied
Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Additional source detail variants (2)
Air Bags:frontal:driver Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
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