P0463 on Chevrolet Vehicles: Fuel Level Sensor A Circuit High
Fuel level signal reads like an open circuit – most often a corroded tank-top connector or an open sender. P0463 →
12Complaints mentioning the code
#3Rank among 7 brands
1.0%Share of Chevrolet DTC complaints
In NHTSA owner complaints we analyzed for Chevrolet, P0463 was mentioned 12 times.
Notes by brand
On GM full-size trucks and SUVs a fuel gauge stuck on empty with P0463 is a familiar complaint. The sender is part of the in-tank pump module, so the repair normally means lowering the tank or lifting the bed.
Most mentioned models
| Chevrolet Malibu Maxx | 6 | |
|---|---|---|
| Chevrolet Traverse | 2 | |
| Chevrolet Malibu | 1 | |
| Chevrolet Silverado 3500 | 1 | |
| Chevrolet Trailblazer | 1 | |
| Chevrolet Trailblazer Ext | 1 |
Model years mentioned
Components named in these complaints
- Fuel System (6)
- Gasoline (6)
- Fuel/propulsion System (6)
- Electrical System (1)
- Service Brakes (1)
Often appears together with
C0045
Chassis
The ABS module lost a valid signal from the driver-side rear wheel speed sensor.
Moderate
C0561
Chassis
GM's brake or chassis module switched off stability/traction control because of a fault…
Low
P0452
Powertrain
The tank pressure sensor signal is stuck near 0 volts, lower than the sensor can physically…
Minor
Possible causes
- Corroded or loose pins in the connector on top of the fuel tank
- Sender open – wiper lifted off a worn spot or broken resistor track
- Open or corroded sender ground wire or ground point near the tank
- Wire broken where the harness flexes between tank and body
Related codes
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.