Android & iOS App:
- Login to your account on the Zipcar app
- From the bottom menu, select Account
- Select Driving Credit in the account settings
- Select the + icon in the top right-hand corner
- Enter the promo code and select Redeem
Zipcar Website:
- Login to your account on the Zipcar website
- Select Billing from the top menu
- Click on Add Credit
- Enter the promo code and select Redeem
Keep In Mind
Driving credit expires, so be sure to check the expiration date after adding credit to your account