Toyota Safety Sense™

Collision Pros Magazine 2020 | ISSUE 02

Toyota Safety Sense™

Today’s New Toyota Technology—How It Affects Repairs

Toyota Safety Sense™ (TSS)1 is a suite of active safety technologies and driver assistance systems that help address three areas of accident protection:

  • Preventing or mitigating frontal collisions
  • Keeping drivers within their lanes
  • Enhancing road safety during nighttime driving

You need to be aware of these systems, how they operate and where the sensors are located in case a Toyota vehicle with TSS comes into your collision repair facility. To understand what these safety systems are intended for, and to confirm that they are functioning as intended, refer to the New Car Features (NCF) manual on Toyota’s Technical Information System website: https://techinfo.toyota.com/.

  1. To access the NCF, enter the model and year, then click on NCF.
  2. Once on TIS, you can also click on the Repair Manual (RM) tab or the Collision Damage Repair Manual tab (CR) to locate procedures for measuring mounting locations, performing initializations, calibrations and operational checks.
  3. It’s important to perform pre- and post-repair health checks, and to complete calibration functions necessary for Safety Sense systems. 
  4. Follow the RM and CR procedures to complete initializations, calibrations and operational checks of systems and components related to TSS.

For a complete overview on how to navigate Toyota’s NCF, RM and CR tabs as they relate to the TSS safety systems, please watch the video below.

Most Common TSS Features

Pre-Collision System (PCS) with Vehicle and Pedestrian Detection2 Uses a forward recognition camera and a grille-mounted millimeter wave radar sensor or laser to reduce the likelihood of colliding with a preceding car, pedestrian or bicyclist (for TSS 2.0 and newer systems).

TSS 2.0 enhances this system with the addition of low-light detection for pedestrians, plus daytime detection of bicycles. 

Dynamic Radar Cruise Control (DRCC)3 The system uses the same camera and radar as PCS to detect vehicles in front of you, and to automatically adjust vehicle speed to maintain a pre-set distance behind the vehicle ahead. It also provides the ability to automatically adjust speed to maintain the flow of traffic.

DRCC Camera location. Uses vehicle-to-vehicle distance control, which adjust the drivers speed, to help maintain a preset distance.

Pre-Collision System (PCS) with Vehicle and Pedestrian Detections
“We can do things now that were impossible just 15 years ago—from paint that dries in 15 minutes to 8,000 grit sandpaper that basically eliminates the need for rubbing compound.” — Joe DiDonato This integrated camera and radar system is designed to help reduce the likelihood of colliding with a preceding car or pedestrian

Dynamic Radar Cruise Control (DRCC)

“We can do things now that were impossible just 15 years ago—from paint that dries in 15 minutes to 8,000 grit sandpaper that basically eliminates the need for rubbing compound.” — Joe DiDonato This high-tech cruise control uses a radar behind the Toyota badge plus a camera on the windshield designed to adjust your speed, helping you maintain a safe distance from the car in front of you. Full-Speed Range Dynamic Radar Cruise Control (DRCC) is standard on automatic transmission; Dynamic Radar Cruise Control is standard on manual transmission.

Lane Departure Alert (LDA)

“We can do things now that were impossible just 15 years ago—from paint that dries in 15 minutes to 8,000 grit sandpaper that basically eliminates the need for rubbing compound.” — Joe DiDonato The LDA system detects lane departure. LDA’s current operating status is indicated through colored lane marking illustrations on the vehicle's Multi-Information Display (MID). If LDA determines that the vehicle is starting to unintentionally deviate from its visibly marked lane, the system alerts the driver with an audio and visual alert.

Automatic High Beams (AHB)

“We can do things now that were impossible just 15 years ago—from paint that dries in 15 minutes to 8,000 grit sandpaper that basically eliminates the need for rubbing compound.” — Joe DiDonato AHB is a safety system designed to help the driver see more clearly at night—while reducing glare for other drivers. When activated, AHB is designed to rely on an in-vehicle camera to help detect the headlights of oncoming vehicles and taillights of preceding vehicles

Road Sign Assist (RSA)

“We can do things now that were impossible just 15 years ago—from paint that dries in 15 minutes to 8,000 grit sandpaper that basically eliminates the need for rubbing compound.” — Joe DiDonato Using a forward-facing intelligent camera, Road Sign Assist (RSA) is designed to detect speed limit signs, stop signs, do not enter signs and yield signs, and display them on the MID.

Lane Tracing Assist (LTA)

“We can do things now that were impossible just 15 years ago—from paint that dries in 15 minutes to 8,000 grit sandpaper that basically eliminates the need for rubbing compound.” — Joe DiDonato When Full-Speed Range Dynamic Radar Cruise Control (DRCC) is enabled and lane markers are visible, Lane Tracing Assist (LTA) uses the lines on the road and preceding vehicles to help keep the vehicle centered and in its lane.

Lane Departure Alert (LDA)4 Lane Departure Alert (LDA)4 uses the forward recognition camera to detect the vehicle’s position in the lane and notifies the driver with an audible and visual alert when it detects unintended lane departure from its visibly marked lane. Select Toyota vehicles with Electronic Power Steering (EPS) also have Steering Assist, which may detect unintentional drifting and may automatically make small corrective steering inputs to help keep the vehicle in its lane.

Automatic High Beams (AHB)5 When activated, the forward recognition camera detects the headlights of oncoming vehicles and taillights of preceding vehicles, then automatically toggles between high and low beams to help drivers see more clearly at night while reducing glare for other drivers.

Road Sign Assist (RSA)6 On TSS 2.0 and newer systems, the vehicle’s forward recognition camera and navigation system have the ability to read certain traffic signs and display them on the vehicle’s multi-information display or via the Head-Up Display to enhance driver awareness of posted road signs.

Lane Tracing Assist (LTA) Works automatically when the Full-Speed Dynamic Radar Cruise Control (DRCC) is active and lane markers are visible. LTA uses the forward-facing camera to monitor the lane markers as well as the path of the vehicle, then automatically make steering inputs to help keep the vehicle centered in its lane and preemptively avoid unintended lane departures.

Repairing Vehicles With TSS

When repairing a vehicle with TSS, it’s critical to know which TSS components are installed on that vehicle, as they can vary year to year and by trim level. The easiest way is to log on to the Toyota Information System (TIS) https://techinfo.toyota.com/, enter the model and year and select ADAS (Advanced Driver Assistance System*) under Service Category. You’ll note that the ADAS category is a recent addition to TIS and is only available on newer models. If you are repairing an older model, you may have to conduct a more thorough search to find TSS component repair procedures. Please refer to the Applicability Chart for the proper names of the TSS systems.

Vehicles equipped with TSS mean that they come with an array of cameras and sensors that you need to be aware of, as many will require precise calibration. This includes:

  • Front Camera with Camera Heater—The forward recognition camera is located inside the vehicle at the top center of the windshield in front of the rearview mirror. It’s a key element in most of the TSS systems and the camera lens should never be touched. If it’s touched, it should be replaced. Or, if the camera is struck, dropped or has any foreign matter on it, it must also be replaced. Finally, if the camera bracket is damaged, it, too must be replaced along with the windshield.
  • Millimeter Wave Radar System—is a vital part of TSS and is attached to the backside of the front Toyota emblem in the grille.

Calibration for these sensors is required when certain procedures take place, and those procedures can vary by model year and trim level, which is why you need to research each model before you begin repairs. Sensors need to be calibrated if they have been affected by a collision, or by removal or replacement. For example, that means any time a vehicle has had a bumper cover or grille removed and reinstalled or replaced, or needs a wheel alignment, the sensors need to be calibrated.

Proper repair and painting procedures around each sensor are vital, because if one or more of the sensors becomes inoperable, TSS may not function as intended. That’s why you must make sure the sensors and cameras are properly calibrated after repairs are complete. In addition, you should also conduct a post repair/calibration test drive to confirm all systems are operating as intended.

We encourage you to follow the repair procedures based on the TSS System that is on the vehicle you’re working with. This ensures you return a vehicle that functions as new and maintains Toyota safety standards.


Disclaimer & Footnotes

This training is just one resource available to Dealers and their associates. Collision Repair Centers are free to use or not use this resource. Of course, our dealers are responsible for all employment decisions relating to their employees including all recruiting, hiring, retention, development, discipline and termination decisions.

  1. Toyota Safety Sense™ effectiveness is dependent on many factors including road, weather and vehicle conditions. Drivers are responsible for their own safe driving. Always pay attention to your surroundings and drive safely. See Owner’s Manual for additional limitations and details.
  2. The TSS Pre-Collision System is designed to help avoid or reduce the crash speed and damage in certain frontal collisions only. It is not a substitute for safe and attentive driving. System effectiveness is dependent on many factors, including road, weather, and vehicle conditions. See Owner’s Manual for additional limitations and details. Feature availability may vary by vehicle and trim
  3. Dynamic Radar Cruise Control (DRCC) is designed to assist the driver and is not a substitute for safe and attentive driving. System effectiveness is dependent on many factors, including road, weather, and vehicle conditions. Feature availability may vary by vehicle and trim.
  4. Lane Departure Alert (LDA) is designed to read visible lane markers under certain conditions, and provide visual and audible alerts when lane departure is detected. It is not a collision-avoidance system or a substitute for safe and attentive driving. System effectiveness is dependent on many factors, including road, weather, and vehicle conditions.
  5. Automatic High Beams operate at speeds above 25 mph. Factors such as a dirty windshield, weather, lightning, and terrain limit effectiveness, requiring the driver to manually operate the high beams. Feature availability may vary by vehicle and trim.
  6. Do not rely exclusively on Road Sign Assist (RSA). It is not a substitute for safe and attentive driving. System effectiveness is dependent on many factors, including road, weather, and vehicle conditions. Feature availability may vary by vehicle and trim.
  7. Lane Tracing Assist (LTA) is designed to read visible lane makers and detect other vehicles under certain conditions. It is only operational when DRCC is engaged.

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