See also:

Programming trouble-diagnosis
If the HomeLink does not quickly learn the handheld transmitter information: - replace the hand-held transmitter batteries with new batteries. - position the hand-held transmitter with its bat ...

Troubleshooting guide
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Pre-towing tips
- Be certain your vehicle maintains a level position when a loaded or unloaded trailer is hitched. Do not drive the vehicle if it has an abnormal nose-up or nose-down condition; check for impr ...