Vehicle Questions and Answers
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If the auto start stop feature isn't functioning on the Ford Ranger, it may be due to a faulty fuse that powers the system. To access the fuse box, locate a small seam or crack to the left of the steering wheel on the dashboard. Use a screwdriver or prybar to carefully open this panel. Inside, you will find a variety of fuses. On the back of the panel, there should be a diagram showing the purpose of each fuse; if not, refer to the vehicle's owner's manual. Identify the required fuse and remove it - a good fuse will have a thin strip of metal connecting the two raised sections. If this strip is broken, the fuse needs to be replaced; otherwise, it can be reinserted. Replacement fuses are inexpensive, typically costing around $10.
When something is plugged into the 120-volt outlet, the auto stop/start function won't work. I discovered that this was causing sporadic issues with my vehicle's operation. One time it would function fine, and other times it wouldn't work seemingly without cause. While the car was stationary with the engine running, I removed the plug, and the engine promptly shut off.
If you switch your heater to the windshield setting, the automatic engine shut-off feature won't work. It seems like it assumes the engine must stay on to maintain the heater's temperature.
It might be because there's a dead cell in the battery. Ask the dealership or a mechanic to check the battery for you.
I recently bought a 2020 Ford Ranger XLT Sport, and I'm having issues with the stop/start feature not functioning properly. The dealership checked the AGM battery and found that the voltage was at 12.4 volts, but the Cold Cranking Amps (CCA) rating of 650 showed a reading of only 393. The dealership claims I just need to charge the battery more, but I'm skeptical of their explanation.