The most common reason for a car starting by itself in the UAE is a malfunction in the aftermarket remote start or security system, often triggered by extreme heat damaging its control module or wiring. This issue is prevalent with GCC-spec vehicles that have had these systems installed post-purchase in the local market. For a 2018 Toyota Land Cruiser, a complete diagnosis and repair of a faulty alarm/remote start module at a specialized workshop in Dubai can cost between AED 800 to AED 1,500, including parts and labor. A secondary, less frequent cause is a faulty ignition switch or a severe electrical short in the starter circuit, which requires immediate attention. According to data from vehicle inspection centers under the RTA Dubai and the MOI UAE, electrical system faults, including parasitic drains and faulty aftermarket installations, are among the top five non-compliance issues for vehicles aged 5-8 years. The total cost of ownership (TCO) impact for such an electrical fault includes not just the repair cost, but also potential battery replacement (AED 350-600) due to drain, and the risk of unexpected vehicle movement. It is critical to have the system inspected by a technician familiar with the complex wiring of GCC-spec models, as improper diagnosis can lead to repeated issues. Resolving this promptly is essential for safety, especially in crowded parking areas common in Dubai or Sharjah.
