Adjusting instrument cluster illumination

When the vehicle's parking lights or headlights are on, press the illumination control button to adjust the brightness of the instrument panel illumination.
When pressing the illumination control button, the interior switch illumination intensity is also adjusted.
WARNING
Never adjust the instrument cluster while driving. Doing so could lead to driver distraction which may cause an accident and lead to vehicle damage, serious injury, or death.

Instrument Cluster
GaugesHyundai Elantra AD (2016-2020) Service Manual: Cowl Side Trim Repair procedures
Replacement
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Put on gloves to prevent hand injuries.
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When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
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When removing the interior trim pieces, use a ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Adjustment
Transaxle Control Module(TCM) Learning
When shift shock is occurred or parts related with the transaxle are replaced, TCM learning should be performed.
In the following case, TCM learning is required.
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Transaxle assembly replacement
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TCM replacement
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TC ...