sensor Acura TLX 2019 Owner's Guide
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uuClimate Control System uAutomatic Climate Control Sensors
Controls
Automatic Climate Control Sensors
The automatic climate control system is 
equipped with sensors. Do not cover or spill 
any liquid on them.Sensor
Sensor
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355
Driving
This chapter discusses driving and refueling.
Before Driving................................... 356
Towing a Trailer ................................ 361
When Driving
Starting the Engine .......................... 362
Precautions While Driving................. 369
Automatic Transmission
*................. 370
Dual Clutch Transmission*............... 370
Shifting ............................................ 371
Shifting ............................................ 378
Auto Idle Stop
*................................ 382
Integrated Dynamics System............. 387
Models with electronic gear selector
Models with shift lever
Front Sensor Camera ....................... 388
Adaptive Cruise Control (ACC) with Low  Speed Follow (LSF) ......................... 390
Road Departure Mitigation (RDM) System ... 404Lane Keeping Assist  System (LKAS) .. 409Vehicle Stability Assist®  (VSA®), aka Electronic 
Stability Control (ESC), System ............... 417
Agile Handling Assist ....................... 419
Precision All-Wheel SteerTM (P-AWS ®) 
System*......................................... 419
Blind spot inform ation (BSI) System*.... 420
Super Handling-All Wheel DriveTM (SH-
AWD® )*......................................... 423 Tire Pressure Monitoring System (TPMS) 
with Tire Fill Assist.......................... 424
Tire Pressure Monitoring System (TPMS) - 
Required Federal Expl anation ........... 426
Braking .............................................. 428
Parking Your Vehicle ........................ 445
Multi-View Rear Camera
*................ 456
Surround View Camera System*..... 458
Refueling ........................................... 459
Fuel Economy and CO
2 Emissions .... 462
* Not available on all models
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uuBefore Driving uDriving Preparation
Driving
• Be sure items placed on the floor behind the front seats cannot roll under the 
seats.
u They can interfere with the  driver’s ability to operate the pedals, the operation 
of the seats, or the operation of the sensors under the seats.
• Everyone in the vehicle must  fasten their seat belt.
2Fastening a Seat Belt  P. 37
•Make sure that the indicators in the ins trument panel come on when you start the 
vehicle, and go off soon after.
u Always have a dealer check the vehicle if a problem is indicated.
2 Indicators  P. 72
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388
uuWhen Driving uFront Sensor Camera
Driving
Front Sensor Camera
The camera, used in systems such  as LKAS, RDM, ACC with LSF, CMBSTM, and auto 
high-beam, is designed to detect an obje ct that triggers any of the systems to 
operate its functions.
This camera is located behind the rearview 
mirror.
To help reduce the likelihood that high interior 
temperatures will cause the camera’s sensing 
system to shut off, when parking, find a shady 
area or face the front of the vehicle away from 
the sun. If you use a reflective sun shade, do 
not allow it to cover the camera housing. 
Covering the camera can concentrate heat on 
it.
■Camera Location and Handling Tips
1 Front Sensor Camera
Never apply a film or attach any objects to the 
windshield, hood, or front  grill that could obstruct 
the camera’s field of vision and cause the system to 
operate abnormally.
Scratches, nicks, and othe r damage to the windshield 
within the camera’s fiel d of vision can cause the 
system to operate abnormall y. If this occurs, we 
recommend that you replac e the windshield with a 
genuine Acura replacement  windshield. Making even 
minor repairs within the ca mera’s field of vision or 
installing an aftermarke t replacement windshield 
may also cause the system to operate abnormally.
After replacing the winds hield, have a dealer 
recalibrate the camera. Pr oper calibration of the 
camera is necessary for the system to operate 
properly.
Do not place an object on the top of the instrument 
panel. It may reflect onto  the windshield and prevent 
the system from detecting lane lines properly.
Front Sensor 
Camera
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uuWhen Driving uFront Sensor Camera
Driving
1Front Sensor Camera
If the Some Driver Assist Systems Cannot 
Operate:  Camera Temperature Too High  message 
appears:
•Use the climate control system to cool down the 
interior and, if necessary,  also use defroster mode 
with the airflow directed towards the camera.
•Start driving the vehicle to lower the windshield 
temperature, which cool s down the area around 
the camera.
If the Some Driver Assist Systems Cannot 
Operate: Clean Front Windshield  message 
appears:
•Park your vehicle in a sa fe place, and clean the 
windshield. If the message  does not disappear after 
you have cleaned the windshield and driven for a 
while, have your vehicle checked by a dealer.
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390
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
Adaptive Cruise Control  (ACC) with Low Speed 
Follow (LSF)
Helps maintain a constant vehicle speed an d a set following-interval behind a vehicle 
detected ahead of yours and, if the detect ed vehicle comes to a stop, can decelerate 
and stop your vehicle, without you having to keep your foot on the brake or the 
accelerator.
When ACC with LSF slows your vehicle by  applying the brakes, your vehicle’s brake 
lights will illuminate.
1 Adaptive Cruise Control (ACC)  with Low Speed Follow (LSF)
Important Reminder
As with any system, there are limits to ACC with LSF. 
Use the brake pedal whenever necessary, and always 
keep a safe interval betw een your vehicle and other 
vehicles.
Be careful not to severely  impact the radar sensor 
cover.
3WARNING
Improper use of ACC wi th LSF can lead to a 
crash.
Use ACC with LSF only when driving on 
expressways or freeways and in good 
weather conditions.
3WARNING
ACC with LSF has limite d braking capability 
and may not stop your vehicle in time to 
avoid a collision with a vehicle that quickly 
stops in front of you.
Always be prepared to apply the brake 
pedal if the conditions require.
When to use
■Vehicle speed for ACC with LSF:  A vehicle is detected ahead within ACC with 
LSF range  – ACC with LSF operates at speeds up to 90 mph (145 km/h).
No vehicle is detected within ACC with LSF range  – ACC with LSF operates at 
the speed of about 25 mph (40 km/h) or above.
■Gear position for ACC with LSF: In ( D. The radar sensor is 
behind the emblem.
The camera is 
located behind the 
rearview mirror.
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Continued395
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
The system may automatically shut off and the  ACC indicator will come on under 
certain conditions. Some examples of these conditions  are listed below. Other 
conditions may reduce some of the ACC functions.
2 Front Sensor Camera  P. 388
■Environmental conditions
Driving in bad weather (r ain, fog, snow, etc.).
■Roadway conditions
Driving on a snowy or wet roadway (obscure d lane marking, vehicle tracks, reflected 
lights, road spra y, high contrast).
■Vehicle conditions
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (Wrong sized, varied size or construction, 
improperly inflated, compact spare tire
*, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• When the front grille is dirty.
• The vehicle is tilted due to a heavy load or  suspension modifications.
• When tire chains are installed.
■ACC with LSF Conditions and Limitations1ACC with LSF Conditions and Limitations
The radar sensor for ACC with LSF is shared with the 
Collision Mitigati on Braking System
TM (CMBSTM).
2 Collision Mitigation Braking SystemTM 
(CMBSTM)  P. 436
You can read about handling information for the 
camera equipped with this system. 2 Front Sensor Camera  P. 388
Always keep the radar sensor cover clean.
Never use chemical solvents or polishing powder for 
cleaning the sensor cover.  Clean it with water or a 
mild detergent.
Do not put a sticker on the radar sensor cover or 
replace the radar sensor cover.
If you need the radar sensor to be repaired, or 
removed, or the radar se nsor cover is strongly 
impacted, turn off the system by pressing the MAIN  
button and take your  vehicle to a dealer.
Have your vehicle checked by a dealer if you find any 
unusual behavior of the system (e.g., the warning 
message appears too frequently).
* Not available on all models
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
396
Driving
■Detection limitations
• A vehicle suddenly crosses in front of you.
• The interval between your vehicle and the vehicle ahead of you is too short.
• A vehicle cuts in front of you at  a slow speed, and it brakes suddenly.
• When you accelerate rapidly and approach the vehicle ahead of you at high 
speed.
• The vehicle ahead of you is a motorcycle,  bicycle, mobility scooter, or other small 
vehicle.
• When there are animals in front of your vehicle.
• When you drive on a curved or winding or undulating road that makes it difficult 
for the sensor to properly detect a vehicle in front of you.
• The speed difference between your vehicl e and a vehicle in front of you is 
significantly large.
• An oncoming vehicle suddenly comes in front of you.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
• When driving through a narrow iron bridge.
• When the vehicle ahead of you brakes suddenly.
• When the vehicle ahead of  you has a unique shape.
• When your vehicle or the vehicle ahead of you is driving on one edge of the lane.1ACC with LSF Conditions and Limitations
If the front of the vehicle  is impacted in any of the 
following situations, the ra dar sensor may not work 
properly. Have your vehi cle checked by a dealer:
•The vehicle mounted onto a bump, curb, chock, 
embankment, etc.
•You drive the vehicle where the water is deep.
•Your vehicle has a frontal collision.
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Continued401
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
■Automatic ca ncellation
The beeper sounds and a message appears  on the multi-information display when 
ACC with LSF is automatically canceled.  Any of these conditions may cause the ACC 
with LSF to automatically cancel:
• Bad weather (rain, fog, snow, etc.)
• When the radar sensor in the front grille gets dirty.
• The vehicle ahead of yo u cannot be detected.
• An abnormal tire condition is detected, or the tires are skidding.
• Driving on a mountainous road, or driving off road for extended periods.
• Abrupt steering wheel movement.
• When the ABS, VSA ® or CMBS
TM is activated.
• When the ABS or VSA ® system indicator comes on.
• When the vehicle is stopped on a very steep slope.
• When you manually apply the parking brake.
• When the detected vehicle within the AC C with LSF range is too close to your 
vehicle.
• When a detected vehicle goes out of the ACC with LSF range while your vehicle 
is stationary.
• The camera behind the rearview mirror, or the area around the camera, including 
the windshield, gets dirty.
The ACC with LSF automatic cancellation ca n be also triggered by the following 
causes. In these cases, the parking  brake will be automatically applied.
• The driver’s seat belt is unfastene d when the vehicle is stationary.
• The vehicle stops for more than 10 minutes.
• The engine is turned off.
1Automatic cancellation
Even though ACC with LSF has been automatically 
canceled, you can still resu me the prior set speed. 
Wait until the condition that caused ACC with LSF to 
cancel improves, then press the  RES/+/SET/–  switch 
up.
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uuWhen Driving uRoad Departure Mitigation (RDM) System
Driving
Road Departure Mitigation (RDM) System
Alerts and helps to assist you when the sy stem detects a possibility of your vehicle 
unintentionally crossing over detected la ne markings and/or leaving the roadway 
altogether.
The front camera behind the rearview mirror 
monitors left and right lane markings (in white 
or yellow). If your vehicle is getting too close to 
detected lane markings without a turn signal 
activated, the system, in addition to a visual 
alert, applies steering torque and alerts you 
with rapid vibrations on the steering wheel, to 
help you remain within the detected lane.
2 Customized Features  P. 120, 292
As a visual alert, the Lane Departure 
message appears on the multi-information 
display.
If the system determines  that its steering input 
is insufficient to keep your vehicle on the 
roadway, it may apply braking.
u Braking is applied only when the lane 
markings are solid continuous lines.
The system cancels assisting operations wh en you turn the steering wheel to avoid 
crossing over detected lane markings.
If the system operates several times without  detecting driver response, the system 
beeps to alert you.
■How the System Works
1 Road Departure Mitigation (RDM) System
Important Safety Reminder
Like all assistance systems, the RDM system has 
limitations.
Over-reliance on the RDM system may result in a 
collision. It is always your  responsibility to keep the 
vehicle within your driving lane.
The RDM system only alerts  you when lane drift is 
detected without a turn signal in use. The RDM 
system may not detect all la ne markings or lane or 
roadway departures; accu racy will vary based on 
weather, speed and lane marker condition. It is 
always your responsibilit y to safely operate the 
vehicle and avoid collisions.
You can read about handling information for the 
camera equipped with this system.
2 Front Sensor Camera  P. 388
The RDM system may not wo rk properly or may work 
improperly under the certain conditions: 2 RDM Conditions and Limitations  P. 407
There are times when you may not notice RDM 
functions due to your opera tion of the vehicle, or 
road surface conditions.
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