If your Lexus RX 5 starts then stalls immediately in cold weather, you likely have a sensor or fuel delivery issue. Don’t ignore it—stalling can be dangerous.
If your Lexus RX 5 (especially the 2.4L turbo or hybrid) fires up on a frosty morning only to die a second later, you're not imagining it. Cold starts demand a rich, precise air-fuel mixture, and when a sensor or fuel component is even slightly off, the engine can't hold idle. The problem often gets worse in winter because cold air is denser, battery voltage drops, and rubber seals shrink. Here's what an experienced mechanic would check first.
