Hyundai Elantra HD: Applying the parking brake
To engage the parking brake, first apply the foot brake and then without pressing the release button in, pull the parking brake lever up as far as possible. In addition it is recommended that when parking the vehicle on a gradient, the shift lever should be positioned in the appropriate low gear on manual transaxle vehicles or in the P (Park) position on automatic transaxle vehicles.
CAUTION
Driving with the parking brake applied will cause excessive brake pad (or lining) and brake rotor wear.