What to do when the gear shows R while actually in P?

[StGrant]

If the gear shows R while actually in P, it is recommended to focus on checking the gear shift mechanism, as there may be an issue with the linkage or the gear position switch. Below is an extended explanation: 1. Explanation of gear position display error on the dashboard: If the gear is not shifted into P from another position, the vehicle's computer will assume there is a gear engaged, as the programmed starting positions are P or N. The vehicle cannot start in any other gear, and the key cannot be removed. 2. Disadvantages of gear position display on the dashboard: Having gear position indicators on the dashboard can be distracting, as the driver needs to check both the gear position and the dashboard.

[McGenesis]

I've encountered this situation too, where the car is clearly in P gear but the dashboard shows R gear. First, don't panic, try turning off the engine and restarting it. If the display is still abnormal, slowly switch gears back and forth a few times to give the sensors in the gear shift mechanism some buffer time. Last time, my friend's Magotan had the same issue, and after repeatedly shifting gears a few times, the display returned to normal. If the problem persists, it's likely an issue with the gear position sensor or the signal contact of the shift linkage. It's recommended to go to a professional repair shop as soon as possible to check the fault codes with a diagnostic computer. Don't try to disassemble the transmission parts yourself, as it's easy to damage the electronic system. The repair cost for such faults is probably a few hundred dollars.

[DelRyder]

When encountering this kind of gear display disorder, my first reaction is to check the shift mechanism. First, completely power off the vehicle for five minutes to reset the system, then get in the car and repeatedly operate the gear lever multiple times. If the display is still incorrect, there's a high probability that the micro switch inside the gear lever assembly is worn out—this little thing is responsible for transmitting gear signals to the ECU. I once fixed an old Camry with this exact issue; replacing the original sensor cost over 300 yuan. Also, pay attention to checking if the shift cable under the chassis is stuck. Once, after rain, my car had signal confusion due to a rusty cable. If you really can't figure it out, find a professional mechanic to read the transmission data stream with a decoder.

[LeArya]

I've encountered abnormal gear display issues twice, both caused by electronic system signal transmission failures. It's recommended to turn off the engine, lock the car, and wait for ten minutes to allow all electronic systems to reset, which usually resolves temporary signal disruptions. If the display remains stuck in R gear, try gently tapping the base of the gear lever, as sometimes poor sensor contact can be fixed with a slight vibration. Never forcefully pull the gear lever while driving, as it can easily damage the transmission gears. During my last visit to the auto repair shop, it was discovered that water ingress into the gear shift panel caused a short circuit in the wiring, and drying the wiring resolved the issue. Such problems are not difficult to fix, but they should be addressed promptly to avoid affecting other electronic modules.

[LawsonRose]

Having driven manual transmissions for twenty years, when encountering this situation with an automatic, I would check three things: first, see if the brake pedal is fully depressed—some cars will have erratic gear shifts if the brake isn't pressed; then, feel whether the gear lever is truly locked in the P position; finally, inspect the fuse box for any blown fuses related to the automatic transmission. Last time, I found that my cat had chewed through a wire, causing a signal error. Simple issues like these can often be fixed yourself, but if the dashboard keeps showing errors, it's best to head to the 4S shop immediately to check the TCU control module. Problems with the transmission computer can be expensive to repair, though usually replacing the gear position switch will solve the issue.

[DiValentina]

Abnormal dashboard displays are mostly caused by signal transmission failures. I usually turn off all electrical devices, press the brake pedal firmly, and then start the engine. Next, I record the gear operation process with my phone to show the mechanic for a more intuitive diagnosis. Common causes include not only sensor failures but also oxidation of the connectors behind the dashboard. Once, my old CR-V had this issue, and it was fixed after unplugging and cleaning the connectors. Owners who have modified their audio systems or installed dashcams should pay extra attention to potential wiring interference. If the display remains erratic after two or three restarts, it's best to call a tow truck immediately, as forced driving may damage the transmission valve body.