That “A” inside a circle on your dashboard is the Auto Hold (Autohold) function indicator, now common in many new cars in the UAE. When activated, it automatically keeps the brakes applied after you come to a complete stop—perfect for long waits at Dubai-Sharjah bridge traffic or on Sheikh Zayed Road—so you can take your foot off the brake pedal without the car rolling. It’s different from the engine Auto Start-Stop system (which has a different ‘A’ symbol) and the electronic parking brake.
The system’s effectiveness and energy draw in our high-heat conditions are noteworthy. Prolonged use in summer traffic, with the air conditioning at maximum, can place a slight additional load on the vehicle's electrical system. A practical cost analysis, using common UAE figures, shows its impact is minimal for the convenience it offers. Here’s a breakdown for a typical sedan:
| Scenario | Annual Fuel Cost (AED) | Cost/km (AED) | Key Notes |
|---|
| With Auto Hold (City Driving) | ~5,800 | ~0.29 | Based on 20,000 km/year at 14 km/l (Special 95), fuel at AED 3.05/l |
| Without Auto Hold | ~5,700 | ~0.285 | Estimated 0.3 km/l efficiency gain from reduced idle load |
- Fuel economy assumption: GCC-spec Toyota Camry Hybrid achieves up to 22 km/l, while a standard petrol SUV like the Nissan Patrol may see 5-6 km/l in city traffic. Auto Hold’s impact is more noticeable in conventional engines.
- Ownership cost: The primary cost remains depreciation. According to data from used car platforms and dealer insights, a popular model like the 2023 Toyota Corolla in the UAE can depreciate around 15-20% in the first year, equating to roughly AED 15,000-20,000, which far outweighs any marginal fuel difference from using this feature.
- Battery consideration: A weak battery, common after 2-3 UAE summers, may struggle with the constant electrical demand of features like Auto Hold, leading to potential starting issues—a frequent point raised by workshops in Al Quoz.
The RTA Dubai’s focus on advanced driver assistance systems and vehicle safety features aligns with technologies like Auto Hold that reduce driver fatigue in stop-and-go conditions. Meanwhile, the UAE Ministry of Energy and Infrastructure promotes fuel efficiency awareness, making understanding the real-world impact of such features relevant for consumers. For most UAE drivers, the comfort benefit in daily commutes justifies its use, but ensuring your car’s battery is in good health is crucial.
