Lane Departure Warning Intermittently Does Not Alert – UnderhoodService

Lane Departure Warning Intermittently Does Not Alert

Some customers may comment that the lane departure warning intermittently does not alert in some cases while driving.

Models: Buick Encore (2013-2016) Equipped with Lane Departure Warning (RPO UFL)

Condition: Some customers may comment that the lane departure warning intermittently does not alert in some cases while driving.

Cause: This may be due to the Lane Departure Warning (LDW) alert is intentionally inhibited to avoid unnecessary alerts due to intentional lane changes or in case of curve cutting.

Correction:The steering angle rate is used to suppress lane departure warning alerts. If the steering wheel is at a constant position, while the vehicle travels into the next lane, the departure warning alarm and light will alert and turn orange, respectively.

If the steering wheel is not at a constant position as the vehicle drifts across the lane (i.e., turning into the lane), the lane departure alarm and light will not alert and the light will remain green. If the steering wheel is moved even slightly such that the vehicle turns into the lane, the alert will not occur.

Please communicate to the customer that this condition is a normal operating characteristic of their vehicle. It will not impact the designed performance or reliability of the vehicle. Please share this information with the customer, including a copy of this message.

Courtesy of Mitchell1

You May Also Like

Detecting Misfire And Knock Conditions

Knock sensors are mounted on the block near the base of the cylinder head.

The knock sensor is a piezoelectric accelerometer that acts as a microphone on the engine. It converts vibrations into alternating current (AC) signal. When the crystal inside the sensor is vibrated, it produces an AC voltage. The greater the vibration or shock, the higher the voltage and frequency.

Mercedes Ignition Coil Pack Diagnostics

Replacing a single coil might not be the best approach to curing an engine of a chronic misfire.

Chrysler’s Totally Integrated Power Module

The TIPM is on the CAN bus, any issues with the communication between the ECM, ABS and BCM can cause problems with the TIPM.

Mercedes EQS Service Opportunities

EQ is the EV brand for Mercedes. It is the equivalent of Audi’s Etron or VW’s iD brands.

ADAS Calibration Tips

Here are 10 tips to follow during ADAS Calibration.

Other Posts

Mitchell 1 Names ‘Thank You Thursdays!’ Sweepstakes Winners

Six auto service professionals in the industry each won a $100 gift card.

Chassis Control Modules After Reconnecting Battery

To resolve the issue, fully disconnect the negative lead from the battery terminal.

Reflashing Power Supplies

A power supply to keep the system voltage consistent is a required piece of equipment to perform a reflash procedure.

BMW Transfer Case Service

The transfer case is a rather unique design in the way that it operates a clutch pack mechanically, not hydraulically.