How to Solve the Problem of Highlander Not Starting?

[StSawyer]

The solution for Highlander not starting is: If there is a companion vehicle, the towing start method can be used. When starting, begin slowly. The driver of the front vehicle should pay attention to the movement of the rear vehicle, and the driver of the rear vehicle should signal the front vehicle promptly after the vehicle starts. Both vehicles should slowly approach the roadside and stop, which is relatively safe and effective. The steps for jump-starting with jumper cables are as follows: 1. First, clamp the red jumper cable to the positive terminal (red) of the "dead" vehicle's battery. 2. Then clamp the other end of the red cable to the positive terminal (red) of the "rescue" vehicle's battery. 3. Clamp the black cable to the negative terminal (black) of the "dead" vehicle's battery. 4. Next, clamp the black cable to the negative terminal (black) of the "rescue" vehicle's battery. 5. Start the engine of the "rescue" vehicle first, then start the engine of the "dead" vehicle. If the "dead" vehicle still cannot start, check if the metal contacts are poorly connected.

[McAngela]

I also encountered the issue of the car not starting when I last drove the Highlander, which was quite frustrating. The common causes are, first, a dead battery—possibly due to leaving the lights on or parking for too long, leading to insufficient power. The way to check is to see if the headlights are dim or if there's no sound when starting. Second, it could be a faulty starter. If you hear a 'click' sound when turning the key but nothing happens, it's most likely a starter issue. Another possibility is problems with the spark plugs, which are crucial for ignition. If they're too carbon-fouled or cracked, the car won't start—this happens more often in cold winters, so I keep a jump starter handy just in case. If none of these solutions work, it's best to call for roadside assistance or tow the car to a shop immediately. Don't force it—safety first!

[NoraMarie]

It's really frustrating when the car won't start, I've encountered this several times before. The main reasons include loose battery connections—open the hood to check if the electrode terminals are loose or corroded, cleaning them might solve the problem; then there's the fuel pump issue—if the car makes a roaring sound when turning the key but doesn't start, the fuel pump might not be supplying fuel; also, a blown fuse, especially in the starting system, check the fuse box to see if any are burnt. My advice is not to panic, try turning the key a few more times or lightly pressing the accelerator to assist starting. Remember, if attempting repairs by the roadside, ensure the car is in P gear with the handbrake on, and turn on the hazard lights to prevent accidents.

[DelJayden]

When my Highlander wouldn't start, I learned some troubleshooting tips. First listen for sounds: complete silence may indicate battery or starting system failure; clicking without cranking suggests a faulty starter; engine turning but not firing points to spark plugs or fuel system issues. Simply check if battery terminals are tight and if the dashboard fuel indicator shows sufficient level. Low coolant or clogged air filter might indirectly affect the starting system too. If all else fails, contacting professional repair is more reliable.