The anti-lock brake system (ABS) front wheel speed sensors are prone to failure. When a sensor fails, the ABS warning light may illuminate and/or the ABS system may activate erratically.

The headlight switch used on the Cadillac Escalade is known to fail through normal operation. Since the headlight switch is also integrated into the interior lights, a malfunctioning switch can cause issues with interior lights as well.

Symptoms of a failed headlight switch include:

Headlights and taillights failing to turn on or off

Interior lights flicker, or fail to turn on or off

Gauge cluster lighting off or flickering with headlights on

Parking light malfunctions

This issue is well known with General Motors Trucks and SUVs, and is solved by testing and, if needed, replacing the headlight/dimmer switch. Bad grounding wires at the tail-lights, and dirty/corroded tow package wires can also lead to some of these issues.