Replacing Smartkey Batteries - Mercedes-Benz 2009 CLS-Class Operator's Manual

Practical hints

Replacing SmartKey batteries

Reset tool
1
Active head restraint cushion
2
Rectangular opening
3
X
Take reset tool out of the Mercedes-
1
Benz literature pouch.
X
Guide reset tool into rectangular open-
1
ing between active head restraint cush-
3
ion and head restraint cover.
2
X
Press reset tool downward in direction
1
of arrow until you hear the head restraint
release mechanism audibly engage.
X
Pull out reset tool 1.
X
Firmly press the active head restraint cush-
ion backward towards the head
2
restraint cover in direction of arrow until it
engages.
306
X
Repeat this procedure for the second front
seat.
X
After resetting the active head restraints
store reset tool in the Mercedes-Benz
1
literature pouch.
For information on active head restraints, see
"Active head restraints" ( Y page 57).
For information on head restraint adjustment,
see "Seats" ( Y page 84).
Replacing SmartKey batteries
If the batteries in the SmartKey are dis-
charged, the vehicle can no longer be locked
or unlocked. It is recommended to have the
batteries replaced at an authorized Mer-
cedes-Benz Center.
G Warning!
Batteries contain poisonous and corrosive
substances. Therefore, keep the batteries
out of reach of children.
If a battery is swallowed, seek medical help
immediately.
G Warning
SmartKey batteries contain Perchlorate
material, which may require special han-
dling and regard for the environment.
Check with your local government's dis-
posal guidelines. California residents, see
http://www.dtsc.ca.gov/Hazardous-
Waste /Perchlorate/index.cfm.
Batteries contain materials that can harm the
environment if disposed of improperly. Recy-
cling of batteries is the preferred method of
disposal. Many states require sellers of bat-
teries to accept old batteries for recycling.