P07BE code meaning
Transmission Park Position Sensor/Switch A/B Correlation
Powertrain system Generic code P07xx codes Check engine light
What P07BE means
With electronic gear selection the park position sensor/switch reports the park request or position. On GM's shift-by-wire selectors (2017 LaCrosse, XT4/XT5, Bolt EV, later SUVs and pickups) it is the P button, read by two redundant analog sensors A and B with separate 'released' and 'pressed' voltage zones. P07BE compares the two redundant sensors in the P button: both report a valid but different state – one pressed, one released – for about 30–60 s, checked only without circuit faults and at low speed. GM's gasoline engine modules and ICCM rate it after two trips, the 2018 diesel engine module after one. GM's bulletins note that off-centre pressing or a hand resting on the button can set it; the remedy is control module software or a new shift knob.
P07BE at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P07BE
- Check engine light, 'service transmission' or 'unable to shift' message
- Park cannot be selected by button, or the car will not shift out of P
- P button illumination off
Common causes of P07BE
- Most likelyOff-centre pressing or a hand resting on the P button
- PossibleControl module software
- PossibleOne of the two sensors faulty or sticking
- Less likelyShift knob worn or not seated
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Park position sensorElectronic range selectorSensor wiringTransmission control module
What each part of P07BE means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7 | Area: transmission. |
| BE | The exact fault in that area. |
What to do next
- Note P07BE and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P07BE
What does P07BE mean?
P07BE means "Transmission Park Position Sensor/Switch A/B Correlation". With electronic gear selection the park position sensor/switch reports the park request or position. It is a generic code, so it means the same on every make.
Is it safe to drive with P07BE?
Drive gently and only to a workshop. With P07BE the car can go into limp mode (reduced power) to protect itself.
Will P07BE fail an emissions test?
P07BE is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P07BE to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P07BE clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.