كيفية إصلاح نظام مساعدة الحفاظ على المسار الذي يتوقف عن العمل في الحرارة المرتفعة

[VanColton]

If your car's Lane Keep Assist (LKA) system stops working in high heat, the first step is often a simple sensor cleaning. In the UAE, where summer temperatures regularly exceed 45°C, dashboard camera lenses and front radar sensors behind the grille can be obscured by a fine layer of dust and sand, tricking the system into a safety shutdown. According to a technical note from the MOI UAE, 23% of advanced driver-assistance system (ADAS) malfunctions reported during summer months (May-September) were resolved through professional cleaning. Before seeking expensive repairs, try carefully cleaning the area around the front emblem and windshield camera with a microfiber cloth and a suitable automotive glass cleaner. If the warning light persists, a professional diagnostic scan is necessary, as recalibration by a dealer or specialized service center like those approved by RTA Dubai is often required. The total cost of ownership (TCO) for this issue can be broken down: the diagnostic fee might range from 150 to 300 AED, while a full sensor recalibration for a common GCC-spec model like the Toyota Camry or Hyundai Tucson can cost between 800 and 1,200 AED.

• Common Cause: Dust/sand accumulation on sensors.
• Initial Fix: Professional cleaning of camera and radar areas.
• Major Cost: Sensor realignment and system recalibration.

[LunaMarie]

My 2022 Toyota Camry Hybrid's LKA went offline three times last July on the Dubai-Abu Dhabi highway. The first two times, I just stopped at a petrol station, wiped the front emblem area clean, and it came back after turning the car off and on. The third time, it stayed off for a week until I got a proper cleaning at a service center in Mussaffah. It turned out to be just thick dust caked onto the radar cover. Total cost was 75 AED for the cleaning check.

[DeHector]

My 2022 Toyota Camry Hybrid's LKA went offline three times last July on the Dubai-Abu Dhabi highway. The first two times, I just stopped at a petrol station, wiped the front emblem area clean, and it came back after turning the car off and on. The third time, it stayed off for a week until I got a proper cleaning at a service center in Mussaffah. It turned out to be just thick dust caked onto the radar cover. Total cost was 75 AED for the cleaning check.

[McBeau]

As a mechanic in Sharjah's industrial area, I see this almost daily when the shamal winds blow. The problem isn't just the heat itself, but the fine dust that sticks to the sensor's plastic cover. People think the system is broken, but 8 times out of 10, a proper cleaner spray and a soft cloth on the forward-facing camera on the windshield and the radar module behind the grille does the trick. Don't use high-pressure water directly on those areas, though; you can force moisture in. For cars like the Nissan Patrol or Land Cruiser used in desert driving, checking these sensors after an off-road trip is a must.

[VanSienna]

In the used car showroom, this is a red flag we check for in summer. If an ADAS warning light is on, we immediately suspect either a dirty sensor or, worse, a prior front-end accident with improper sensor recalibration. A car whose LKA doesn't work in our 40°C+ showroom parking lot will need a significant price adjustment, as buyers here now expect these features to function reliably in our climate.

[Hadley]

For fleet managers, the economic impact is significant. We run a mix of Toyota Corollas and Hyundai Sonatas for corporate transport. Last summer, we logged over 35 "LKA/ACC fault" tickets. Setting up a monthly scheduled cleaning protocol for the front sensors and cameras at our in-house wash bay reduced these reports by over 70%. The minor labor cost for focused cleaning is far cheaper than losing a vehicle for a full day at the service center for recalibration, which can run up to 1,000 AED per vehicle.