GMC Canyon Problems

RepairPal has identified the most common problems with the GMC Canyon as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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10
Known Problems

The GMC Canyon SLE and Canyon SLT uses a throttle position sensor (TPS) which is known to fail and cause:

This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.

To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Replacement of the cylinder head may be required to correct this concern.

The CD player in the radio may fail. Our technicians tell us that the radio will need to be removed and sent out to a radio repair shop to correct this condition.

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.

GM recommends replacing the engine coolant at 100,000 miles; however, our technicians tell us that the coolant may become contaminated and require a complete cooling system flush every 60,000 to 70,000 miles.

Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.