2007 Hummer H2 Owners Manual PDF | Page 119

Starting and Operating Your
Vehicle
New Vehicle Break-In
Notice: Your vehicle does not need an
elaborate break-in. But it will perform better in
the long run if you follow these guidelines:
? Keep your speed at 55 mph (88 km/h)
or less for the ?rst 500 miles (805 km).
? Do not drive at any one constant speed,
fast or slow, for the ?rst 500 miles
(805 km). Do not make full-throttle starts.
Avoid downshifting to brake, or slow,
the vehicle.
? Avoid making hard stops for the ?rst
200 miles (322 km) or so. During this time
your new brake linings are not yet
broken in. Hard stops with new linings can
mean premature wear and earlier
replacement. Follow this breaking-in
guideline every time you get new brake
linings.
? Do not tow a trailer during break-in. See
Towing a Trailer on page 374 for the
trailer towing capabilities of your vehicle
and more information.
Following break-in, engine speed and load can
be gradually increased.
119

Summary of Content

Starting and Operating YourVehicleNew Vehicle Break-InNotice: Your vehicle does not need anelaborate break-in. But it will perform better inthe long run if you follow these guidelines: Keep your speed at 55 mph (88 km/h)or less for the rst 500 miles (805 km). Do not drive at any one constant speed,fast or slow, for the rst 500 miles(805 km). Do not make full-throttle starts.Avoid downshifting to brake, or slow,the vehicle. Avoid making hard stops for the rst200 miles (322 km) or so. During this timeyour new brake linings are not yetbroken in. Hard stops with new linings canmean premature wear and earlierreplacement. Follow this breaking-inguideline every time you get new brakelinings. Do not tow a trailer during break-in. SeeTowing a Trailer on page 374 for thetrailer towing capabilities of your vehicleand more information.Following break-in, engine speed and load canbe gradually increased.119