Waymo Fixes Software Problem with Self-Driving Cars

May 13, 2026, 18:53
USTechnology
A2

Waymo Fixes Software Problem with Self-Driving Cars

Introduction

Waymo is fixing 3,791 self-driving cars. The cars have a software problem with water on the road.

Main Body

The cars see water on fast roads. They slow down, but then they drive into the water. In Texas, one car drove into a creek because of this problem. Waymo changed the maps and the rules for bad weather. They did this in April 2026. But the government says Waymo needs a permanent fix. Waymo must send reports for many years. Waymo has other problems too. One car hit a person in California. Other cars did not stop for school buses. Waymo says their cars are still safer than human drivers.

Conclusion

Waymo stopped its cars in San Antonio. The cars still work in other big cities.

Learning

⚡ The 'Action' Pattern

Look at how the text describes things happening. To reach A2, you need to master Simple Present (facts) and Simple Past (finished actions).

1. Facts (Now)

  • "Waymo is fixing..."
  • "The cars have a problem..."
  • "Cars are safer..."
  • Rule: Use these for things that are true today.

2. Finished Actions (Then)

  • "Waymo changed the maps..."
  • "One car drove into a creek..."
  • "One car hit a person..."
  • Rule: These happened in the past. They are finished.

3. Quick Word Swap

  • See →\rightarrow Saw (Present →\rightarrow Past)
  • Stop →\rightarrow Stopped (Present →\rightarrow Past)
  • Work →\rightarrow Worked (Present →\rightarrow Past)

Key Vocabulary for A2

  • Permanent: Something that does not change. →\rightarrow A permanent fix.
  • Software: The programs inside a computer. →\rightarrow A software problem.

Vocabulary Learning

car (n.)
a vehicle with wheels that people use to travel
Example:I drive my car to work every day.
road (n.)
a path or way for vehicles to travel on
Example:The road was closed because of snow.
water (n.)
a liquid that covers the earth and is needed for life
Example:Please pour some water into the glass.
slow (adj.)
moving at a low speed
Example:The traffic was slow during rush hour.
drive (v.)
to operate a vehicle
Example:She likes to drive on the highway.
creek (n.)
a small stream of water
Example:The dog ran into the creek and splashed.
map (n.)
a picture that shows places and roads
Example:We used a map to find the park.
weather (n.)
the state of the sky and air, like rain or sunshine
Example:The weather is hot today.
report (n.)
a written or spoken statement about something
Example:He gave a report on the project.
person (n.)
a human being
Example:The person at the corner was waving.
bus (n.)
a large vehicle that carries many passengers
Example:The school bus stops at the corner.
driver (n.)
someone who operates a vehicle
Example:The driver was careful on the wet road.
B2

Waymo Recalls Autonomous Vehicles Due to Flooding Risks

Introduction

Waymo, a company owned by Alphabet Inc., has started a safety recall of 3,791 self-driving cars because of a software error that might cause vehicles to drive into flooded roads.

Main Body

The recall affects vehicles using the fifth and sixth generation driving systems. According to the National Highway Traffic Safety Administration (NHTSA), the software fails to follow safety rules. Although the system can see standing water on fast roads and slows down, it still allows the car to enter the dangerous area. For example, in April, an empty vehicle in San Antonio, Texas, drove into a flooded road and was washed away into a creek. To fix this, Waymo has introduced temporary solutions, such as improving weather rules and updating maps to block flood-prone areas. However, the NHTSA emphasized that a permanent software fix is still missing. Consequently, Waymo must provide a detailed description of the final solution and send regular progress reports for several years to follow government regulations. This problem comes at a time when the company is facing other challenges. Waymo is currently under federal investigation for a January accident with a pedestrian in Santa Monica and has reviewed cases where cars ignored school bus signals. Furthermore, there have been reports of vehicles blocking emergency services in Austin. Despite these issues, Waymo asserts that its data shows its cars are safer than human drivers.

Conclusion

Waymo has temporarily stopped its services in San Antonio until the software is permanently fixed, but it continues to operate in other major U.S. cities.

Learning

⚡ The 'Logic Bridge': Moving from A2 to B2

At the A2 level, students use simple words like and, but, and so. To reach B2, you must start using Connectors of Consequence and Contrast. These words act like road signs, telling the reader exactly how two ideas relate.

🔍 The 'Power Words' from the Text

Look at how the article connects ideas. It doesn't just say "This happened, so that happened." It uses professional logic:

  1. Consequently →\rightarrow (B2 version of So)

    • Example: "The software fails... Consequently, Waymo must provide a detailed description."
    • Why it works: It shows a direct, formal result. Use this in essays or work emails to sound more authoritative.

  2. Despite →\rightarrow (B2 version of But)

    • Example: "Despite these issues, Waymo asserts that its cars are safer..."
    • Why it works: This is a 'contrast' word. It tells us that even though something bad is happening, a surprising fact is still true.

  3. Furthermore →\rightarrow (B2 version of And/Also)

    • Example: "...ignored school bus signals. Furthermore, there have been reports of vehicles blocking emergency services."
    • Why it works: It doesn't just add information; it builds an argument, adding a second piece of evidence to a list of problems.

🛠️ Upgrade Your Speech

A2 (Simple)B2 (Professional)Impact
But...Despite / HoweverSounds more objective
So...Consequently / ThereforeShows a logical chain
And...Furthermore / In additionSounds like a structured report

💡 Coach's Tip: To sound like a B2 speaker, stop starting every sentence with the subject. Start your sentence with a connector (like Consequently or Furthermore) followed by a comma. This immediately changes the rhythm of your English from 'basic' to 'fluent'.

Vocabulary Learning

recall (n.)
The action of bringing back a product for safety or quality reasons.
Example:The recall of the faulty airbags led to a nationwide inspection.
software (n.)
Computer programs and operating information used by a computer.
Example:The software update fixed the security flaw.
error (n.)
A mistake or incorrect action that causes a problem.
Example:The error in the code caused the app to crash.
flooding (n.)
The overflow of water onto normally dry land.
Example:After the heavy rain, the flooding damaged the bridge.
risks (n.)
The possibility of danger or loss.
Example:High risks are associated with driving in winter.
generation (n.)
A particular series of models or versions.
Example:The fifth generation of smartphones includes better cameras.
system (n.)
A set of connected parts working together.
Example:The heating system was repaired.
administration (n.)
The group of people who manage an organization.
Example:The administration approved the new policy.
safety (n.)
The condition of being protected from harm.
Example:Safety measures were installed at the construction site.
rules (n.)
Statements that describe what is allowed or required.
Example:The rules of the game were explained.
standing (adj.)
Not moving; stationary.
Example:Standing water can be dangerous.
water (n.)
A clear liquid used for drinking and many other purposes.
Example:Water is essential for life.
dangerous (adj.)
Capable of causing harm or injury.
Example:The cliff was dangerous to climb.
temporary (adj.)
Lasting for a short time; not permanent.
Example:The temporary bridge was built quickly.
solution (n.)
An answer or fix to a problem.
Example:The solution to the puzzle was simple.
update (v.)
To make something more recent or current.
Example:Please update your software.
block (v.)
To stop or prevent the passage of something.
Example:The road was blocked by debris.
permanent (adj.)
Lasting for a long time or indefinitely.
Example:He made a permanent change to his diet.
missing (adj.)
Not present or absent when expected.
Example:The missing file caused errors.
detailed (adj.)
Containing many small parts or pieces of information.
Example:She gave a detailed report.
progress (n.)
The forward movement toward a goal or improvement.
Example:The project made steady progress.
government (n.)
The governing body of a country or region.
Example:The government announced new regulations.
regulations (n.)
Rules set by an authority to control behavior.
Example:The regulations require safety inspections.
federal (adj.)
Relating to the central government of a country.
Example:The federal law applies nationwide.
investigation (n.)
A formal inquiry into a matter.
Example:The investigation lasted several months.
accident (n.)
An unexpected event that causes damage or injury.
Example:The car accident injured several people.
pedestrian (n.)
A person walking on a road or sidewalk.
Example:The pedestrian was crossing the street.
bus (n.)
A large vehicle that carries many passengers.
Example:The bus was delayed.
signals (n.)
Indications or messages that convey information.
Example:Traffic signals control the flow.
emergency (adj.)
Requiring immediate action or response.
Example:Emergency services responded quickly.
services (n.)
Help or work provided to others.
Example:The services were free.
data (n.)
Information collected for analysis or reference.
Example:The data shows a trend.
safer (adj.)
More safe or less risky.
Example:The new technology is safer than before.
drivers (n.)
People who operate vehicles.
Example:Drivers must obey the speed limit.
temporarily (adv.)
For a short time; not permanently.
Example:The store will be temporarily closed.
permanently (adv.)
For an indefinite or long period.
Example:The building was permanently demolished.
operate (v.)
To function or run.
Example:The machine operates efficiently.
C2

Waymo Initiates Software Recall Following Identification of Hydroplaning Risks in Autonomous Fleet

Introduction

Waymo, a subsidiary of Alphabet Inc., has commenced a safety recall of 3,791 autonomous vehicles due to a software defect that may lead to the traversal of flooded roadways.

Main Body

The recall pertains specifically to vehicles utilizing the fifth and sixth generation Automated Driving Systems. According to documentation from the National Highway Traffic Safety Administration (NHTSA), the software malfunction manifests as a failure to maintain avoidance protocols; while the system recognizes standing water on high-speed roads and reduces velocity, it subsequently permits the vehicle to enter the hazard. This operational failure was exemplified by an April incident in San Antonio, Texas, where an unoccupied vehicle entered an untraversable flooded road and was subsequently swept into a creek. In response to these findings, Waymo has implemented interim mitigations, including the refinement of extreme weather operational protocols and the updating of navigational maps to restrict access to flood-prone areas. These measures were deployed by April 20, 2026. However, the NHTSA has noted that a permanent software remedy remains outstanding. Consequently, Waymo is mandated to provide a comprehensive description of the final fix and submit a series of quarterly and annual status reports over several years to ensure regulatory compliance. This technical failure occurs amidst a broader pattern of operational irregularities. The company is currently the subject of a federal investigation regarding a January collision with a pedestrian in Santa Monica and has conducted internal reviews into instances of vehicles disregarding school bus stop signals. Additional reported incidents include the obstruction of emergency services in Austin and traffic violations in San Bruno. Despite these occurrences, Waymo asserts that its empirical data indicates a safety performance that exceeds human driving capabilities.

Conclusion

Waymo has temporarily suspended operations in San Antonio pending a permanent software resolution, while continuing service in other U.S. metropolitan areas.

Learning

The Architecture of 'Clinical Detachment' in Corporate-Legal Prose

To move from B2 to C2, one must master the art of nominalization and syntactic distancing. This text is a masterclass in de-personalization—the ability to describe failure and chaos without using emotional or active verbs.

◈ The 'Passive-Aggressive' Nominal Shift

Observe how the text avoids saying "Waymo failed to stop the car." Instead, it employs:

"...the software malfunction manifests as a failure to maintain avoidance protocols."

C2 Analysis: The subject is no longer a human or a company, but a "malfunction." By transforming the action (failing) into a noun (a failure), the writer creates a layer of abstraction. This is the hallmark of high-level administrative and legal English: it frames an event as an objective phenomenon rather than a culpable action.

◈ Lexical Precision: The 'High-Register' Pivot

B2 students use 'fix'; C2 speakers use 'remedy'. B2 students use 'started'; C2 speakers use 'commenced' or 'initiated'.

Note the phrase: "interim mitigations."

  • Interim: (Adj.) Temporary; serving as a bridge.
  • Mitigation: (Noun) The action of reducing the severity of something.

Combining these creates a specific professional nuance: it suggests a calculated, strategic response rather than a panicked correction.

◈ The Logic of Subordination

Look at the sentence structure regarding the San Antonio incident: "This operational failure was exemplified by an April incident... where an unoccupied vehicle entered an untraversable flooded road and was subsequently swept into a creek."

Rather than a series of short sentences, the C2 writer uses a complex chain of qualifiers: [Core Subject] →\rightarrow [Evidence/Example] →\rightarrow [Specific Context] →\rightarrow [Result].

The C2 Takeaway: To achieve mastery, stop describing what happened and start describing the category of what happened. Don't say "The car went into the water"; say "The operational failure was exemplified by the vehicle's entry into a hazard."

Vocabulary Learning

hydroplaning (n.)
The loss of traction a vehicle experiences when a layer of water builds up between the tires and the road surface, causing the vehicle to glide.
Example:The sudden hydroplaning of the car at the wet intersection left the driver unable to steer.
manifest (v.)
To become apparent or visible; to display.
Example:The software malfunction manifested as a sudden loss of braking control.
avoidance (n.)
The act of keeping away from or preventing something.
Example:The system's avoidance protocols were designed to prevent collisions with pedestrians.
protocols (n.)
A set of established procedures or rules for carrying out a task.
Example:The emergency response protocols were activated immediately.
interim (adj.)
Temporary; serving between two states or periods.
Example:Interim mitigations were introduced while a permanent fix was developed.
mitigations (n.)
Actions or measures taken to reduce the severity or impact of a problem.
Example:The company implemented several mitigations to address the software bug.
refinement (n.)
The process of improving something by making small changes.
Example:The refinement of the navigation system improved route accuracy.
extreme (adj.)
Intense or severe; beyond normal limits.
Example:Extreme weather conditions prompted the update of safety protocols.
operational (adj.)
Relating to the functioning or execution of a system.
Example:Operational irregularities were reported across several models.
navigational (adj.)
Relating to the planning and control of a vehicle's route.
Example:The navigational maps were updated to avoid flood-prone areas.
restrict (v.)
To limit or prevent access or movement.
Example:The system restricts entry to roads with standing water.
remedy (n.)
A solution or cure for a problem.
Example:The software remedy will fix the error causing hydroplaning.
mandated (adj.)
Required by law or an authority.
Example:Waymo is mandated to submit quarterly safety reports.
comprehensive (adj.)
Complete and covering all aspects.
Example:A comprehensive description of the fix was provided to regulators.
regulatory (adj.)
Relating to rules or regulations set by an authority.
Example:Regulatory compliance is essential for vehicle safety.
compliance (n.)
Adherence to rules, laws, or standards.
Example:The company improved its compliance with traffic laws.
irregularities (n.)
Unexpected deviations or inconsistencies.
Example:The audit uncovered several operational irregularities.
disregard (v.)
To ignore or pay no attention to something.
Example:Vehicles disregarding school bus stop signals caused accidents.
obstruction (n.)
An obstacle that blocks or hinders movement.
Example:The obstruction of emergency services delayed response times.
empirical (adj.)
Based on observation or experiment rather than theory.
Example:Empirical data showed the system's high reliability.
performance (n.)
The act of performing or the result of an action.
Example:The safety performance exceeded human driving capabilities.
metropolitan (adj.)
Relating to a large city or urban area.
Example:The recall covered metropolitan areas across the U.S.
untraversable (adj.)
Impossible to cross or navigate.
Example:The untraversable flooded road forced the vehicle to detour.
unoccupied (adj.)
Not occupied; empty.
Example:The unoccupied vehicle was found on the highway.
swept (v.)
Carried away or moved by a current or force.
Example:The car was swept into a creek after the flood.
deployed (v.)
Placed or used for a particular purpose.
Example:The updates were deployed nationwide on April 20.
outstanding (adj.)
Remaining to be dealt with; unresolved.
Example:The software remedy remains outstanding.
permanent (adj.)
Lasting for an indefinite or long time.
Example:A permanent fix will prevent future hydroplaning incidents.
recall (v.)
To call back or withdraw a product from use.
Example:Waymo recalled 3,791 vehicles due to a software defect.
subsidiary (n.)
A company controlled by another company.
Example:Waymo is a subsidiary of Alphabet Inc.
commenced (v.)
To begin or start.
Example:The investigation commenced after the collision.